FCC ID: NS904P11 MHX910A 900MHz SPREAD SPECTRUM OEM MODULE

Operating Manual MHX-910A 900 MHz Spread Spectrum OEM Module Revision 0.10, November 1, 2004 Microhard Systems Inc.

#17, 2135 - 32nd Ave. N.E. Calgary, Alberta T2E 6Z3 Phone: (403) 248-0028 Fax: (403) 248-2762 www.microhardcorp.com MHX 910A Operating Manual i Warranty Microhard Systems Inc. warrants that each product will be free of defects in material and workmanship for a period of one (1) year for its products. The warranty commences on the date the product is shipped by Microhard Systems Inc. Microhard Systems Inc.s sole liability and responsibility under this warranty is to repair or replace any product which is returned to it by the Buyer and which Microhard Systems Inc. determines does not conform to the warranty. Product returned to Microhard Systems Inc. for warranty service will be shipped to Microhard Systems Inc. at Buyers expense and will be returned to Buyer at Microhard Systems Inc.s expense. In no event shall Microhard Systems Inc. be responsible under this warranty for any defect which is caused by negligence, misuse or mistreatment of a product or for any unit which has been altered or modified in any way. The warranty of replacement shall terminate with the warranty of the product. Warranty Disclaims Microhard Systems Inc. makes no warranties of any nature of kind, expressed or implied, with respect to the hardware, software, and/or products and hereby disclaims any and all such warranties, including but not limited to warranty of non-infringement, implied warranties of merchantability for a particular purpose, any interruption or loss of the hardware, software, and/or product, any delay in providing the hardware, software, and/or product or correcting any defect in the hardware, software, and/or product, or any other warranty. The Purchaser represents and warrants that Microhard Systems Inc. has not made any such warranties to the Purchaser or its agents MICROHARD SYSTEMS INC. EXPRESS WARRANTY TO BUYER CONSTITUTES MICROHARD SYSTEMS INC. SOLE LIABILITY AND THE BUYERS SOLE REMEDIES. EXCEPT AS THUS PROVIDED, MICROHARD SYSTEMS INC. DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PROMISE. MICROHARD SYSTEMS INC. PRODUCTS ARE NOT DESIGNED OR INTENDED TO BE USED IN ANY LIFE SUPPORT RELATED DEVICE OR SYSTEM RELATED FUNCTIONS NOR AS PART OF ANY OTHER CRITICAL SYSTEM AND ARE GRANTED NO FUNCTIONAL WARRANTY. Indemnification The Purchaser shall indemnify Microhard Systems Inc. and its respective directors, officers, employees, successors and assigns including any subsidiaries, related corporations, or affiliates, shall be released and discharged from any and all manner of action, causes of action, liability, losses, damages, suits, dues, sums of money, expenses

(including legal fees), general damages, special damages, including without limitation, claims for personal injuries, death or property damage related to the products sold hereunder, costs and demands of every and any kind and nature whatsoever at law. IN NO EVENT WILL MICROHARD SYSTEMS INC. BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL, BUSINESS INTERRUPTION, CATASTROPHIC, PUNITIVE OR OTHER DAMAGES WHICH MAY BE CLAIMED TO ARISE IN CONNECTION WITH THE HARDWARE, REGARDLESS OF THE LEGAL THEORY BEHIND SUCH CLAIMS, WHETHER IN TORT, CONTRACT OR UNDER ANY APPLICABLE STATUTORY OR REGULATORY LAWS, RULES, REGULATIONS, EXECUTIVE OR ADMINISTRATIVE ORDERS OR DECLARATIONS OR OTHERWISE, EVEN IF MICROHARD SYSTEMS INC. HAS BEEN ADVISED OR OTHERWISE HAS KNOWLEDGE OF THE POSSIBILITY OF SUCH DAMAGES AND TAKES NO ACTION TO PREVENT OR MINIMIZE SUCH DAMAGES. IN THE EVENT THAT REGARDLESS OF THE WARRANTY DISCLAIMERS AND HOLD HARMLESS PROVISIONS INCLUDED ABOVE MICROHARD SYSTEMS INC. IS SOMEHOW HELD LIABLE OR RESPONSIBLE FOR ANY DAMAGE OR INJURY, MICROHARD SYSTEMS INC.'S LIABILITY FOR ANYDAMAGES SHALL NOT EXCEED THE PROFIT REALIZED BY MICROHARD SYSTEMS INC. ON THE SALE OR PROVISION OF THE HARDWARE TO THE CUSTOMER. Proprietary Rights The Buyer hereby acknowledges that Microhard Systems Inc. has a proprietary interest and intellectual property rights in the Hardware, Software and/or Products. The Purchaser shall not (i) remove any copyright, trade secret, trademark or other evidence of Microhard Systems Inc.s ownership or proprietary interest or confidentiality other proprietary notices contained on, or in, the Hardware, Software or Products, (ii) reproduce or modify any Hardware, Software or Products or make any copies thereof, (iii) reverse assemble, reverse engineer or decompile any Software or copy thereof in whole or in part, (iv) sell, transfer or otherwise make available to others the Hardware, Software, or Products or documentation thereof or any copy thereof, except in accordance with this Agreement. ii MHX 910A Operating Manual Regulatory Requirements WARNING To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 23 cm or more should be maintained between the antenna of this device and persons during device operation. To ensure compliance, operations at closer than this distance is not recommended. The antenna used for this transmitter must not be co-located in conjunction with any other antenna or transmitter. WARNING This device can only be used with Antennas listed in Appendix A. Please Contact Microhard Systems Inc. if you need more information or would like to order an antenna. WARNING MAXIMUM ERP FCC Regulations allow up to 36 dBm effective radiated power (ERP). Therefore, the sum of the transmitted power (in dBm), the cabling loss and the antenna gain cannot exceed 36 dBm. WARNING EQUIPMENT LABELING This device has been modularly approved. The manufacturer, product name, and FCC and Industry Canada identifiers of this product must appear on the outside label of the end-user equipment. SAMPLE LABEL REQUIREMENT:

FCCID: NS904P11 IC: 3143A-04P11 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received including interference that may cause undesired operation. MHX 910A Operating Manual iii Contents 1. 1.0 1.1 CONTENTS ..............................................................................................................................................................III HISTORY....................................................................................................................................................................V TABLES AND FIGURES.......................................................................................................................................VII TABLES .......................................................................................................................................................................................VII FIGURES ......................................................................................................................................................................................VII INTRODUCTION ...............................................................................................................................................1 PRODUCT OVERVIEW........................................................................................................................................................ 1 FEATURES ........................................................................................................................................................................ 2 2. CONFIGURATION ............................................................................................................................................4 OVERVIEW ....................................................................................................................................................................... 4 OUTPUT POWER LEVEL..................................................................................................................................................... 4 INSTALLATION.................................................................................................................................................7 OVERVIEW ....................................................................................................................................................................... 7 ESTIMATING THE GAIN MARGIN ....................................................................................................................................... 7 INTERNAL CABLING.......................................................................................................................................................... 9 INSTALLING EXTERNAL CABLES, ANTENNAS AND LIGHTNING ARRESTORS...................................................................... 10 APPROVED ANTENNAS ............................................................................................................................15 3.0 3.1 3.2 3.3 2.0 2.1 3. A. MHX 910A Operating Manual: Contents iii History Revision Date 0.10 2004-11-01 Action FW Rev. Note Created For FCC Approval MHX 910A Operating Manual: History v Tables and Figures Tables Table 1 Path Loss ..........................................................................................................................................................8 Table 2 Cable Loss ......................................................................................................................................................10 Figures Figure 1 Gain Calculation.............................................................................................................................................7 Figure 2 System Deploying ...........................................................................................................................................8 Figure 3 Suggested Internal Cabling .............................................................................................................................9 MHX 910A Operating Manual: Tables and Figures vii 1. Introduction 1.0 Product Overview The MHX-910A is a very high-performance wireless module. When used properly very long distance communication at very high speeds can be accomplished. The MHX-910A operates in the 902 - 928 MHz ISM band, using frequency-hopping spread-spectrum module is capable of providing reliable wireless data transfer between almost any equipment which uses an RS232, RS422, or RS485 interfaces. The small-size and superior RF performance of this product makes it ideal for many applications. Typical uses for this module include:

SCADA

Remote Telemetry

Surveillance

Traffic Control

Industrial Controls

Remote Monitoring

Fleet Management

GPS

Wireless Video

Robotics

Security

Display Signs

Railway Signaling

Many others While a pair of MHX-910A modules can link two terminal devices (point-

to-point operation), multiple modules can be used together to create a including point-to-multipoint and network of various topologies, repeater operation. Multiple independent networks can operate concurrently, so it is possible for unrelated communications to take place in the same or a nearby area without sacrificing privacy or reliability. MHX 910A Operating Manual: Chapter 1 Introduction 1 1.1 Features Key features of the MHX-910A include:

transmission within a public, license-exempt band of the radio spectrum1 this means that it can be used without access fees

(such as those incurred by cellular airtime);

Transparent, low latency link providing true 115.2 kbps continuous throughput

Communicates with virtually all PLCs, RTUs, and serial devices through RS232, RS422 and RS485 interface

3.3V or 5V logic level compatibility

Industrial temperature specifications

Supports point-to-point, point-to-multipoint, Store and Forward Repeater, TDMA, Multimaster

Maximum allowable transmit power, (1W)

Low power consumption in Sleep Mode (Real-Time Clock wakeup)

32-bit CRC, selectable forward error correction with retransmission

Separate diagnostics port - transparent remote diagnosis and online network control

Backwards Compatible with MHX-910

ease of installation and use the MHX-910A module uses a subset of standard AT style commands, very similar to those used by traditional telephone line modules. While the typical application for the MHX-910A is to provide a short- to mid-range wireless communications link between DTEs, it can be adapted to almost any situation where an asynchronous serial interface is used and data intercommunication is required. 1 902-928 MHz, which is license-free within North America; may need to be factory-configured differently for some countries. 2 MHX 910A Operating Manual: Chapter 1 Introduction MHX 910A Operating Manual: Chapter 1 Introduction 3 2. Configuration 2.0 Overview This chapter provides a detailed description of the various operating parameters of the MHX-910A. 2.1 Output Power Level The Output Power Level determines at what power the MHX-910A transmits. The MHX-910As sensitive receiver can operate with very low power levels, so it is recommended that the lowest power necessary is used;

using excessive power contributes to unnecessary RF pollution. The allowable settings are:

1 mW 0 1 10 mW

*2 100 mW 3 1000 mW Ideally, you should test the communications performance between units starting from a low power level and working upward until the RSSI is sufficiently high and a reliable link is established. The conditions will vary widely between applications; the output power settings can be calculated based on following information. Transmitter antenna gain Cable loss Effective radiated power (ERP) requirement by FCC Regulations Power Setting = 36 Antenna Gain Cable Loss The power setting must be no more than the above calculation value. Any higher is a violation of FCC rules. 4 MHX 920 Operating Manual: Chapter 2 Configuration by adopted WARNING In order to comply with the FCC/IC RF exposure requirements, this transmitter system will be the installed manufacturer's reseller professional. Installation of all be performed in a manner that will provide at least 23 cm clearance from the front radiating aperture, to any user or member of the public. antennas must IMPORTANT:

FCC Regulations allow up to 36 dBi effective radiated power (ERP). Therefore, the sum of the transmitted power (in dBm), the cabling loss and the antenna gain cannot exceed 36 dBi. 1 mW = 0 dBm 10 mW = 10 dBm 100 mW = 20 dBm 1000 mW = 30 dBm For example, when transmitting 1 Watt (30 dBm), with cabling losses of 2 dB, the antenna gain cannot exceed 36 - 30 + 2 = 8 dBi. If an antenna with a gain higher than 8 dBi were to be used, the power setting must be adjusted appropriately. Violation of FCC regulations can result in severe fines. MHX 920 Operating Manual: Chapter 2 Configuration 5 3. Installation 3.0 Overview The installation, removal or maintenance of all antenna components must be carried out by qualified and experienced personnel. The MHX-910A complies with FCC part 15 at the modular level for operation in the license-free 902-928 MHz ISM band. This chapter provides guidelines for installing and deploying equipment which incorporates the MHX-910A module. 3.1 Estimating the Gain Margin Successful communication between MHX-910A modules is dependent on three main factors:

System Gain Path Loss System gain is a calculation in dB describing the performance to be expected between a transmitter-receiver pair. The number can be calculated based on knowledge of the equipment being deployed. The following four factors make up a system gain calculation:

1. Transmitter power (user selectable 0, 20 to 30dBm) 2. Transmitter gain (transmitting antenna gain minus cabling loss between Interference the transmitting antenna and the MHX-910A module) 3. Receiver gain (Receiving antenna gain minus cabling loss between the receiving antenna and the module) 4. Receiver sensitivity (Specified as -105dBm on the MHX-910A module) In the following illustration, the transmitting antenna has a gain of 6 dB, and the receiving antenna has a gain of 3 dB. The cable loss between the module and the antenna is 2 dB on both the transmitting and receiving side. Cable Loss = 2 dB Cable Loss = 2 dB Antenna Gain = 6 dB Antenna Gain = 3 dB Transmitter 30 dBm Output Power Figure 1 Gain Calculation Receiver Sensitivity =

-105 dBm MHX 910A Operating Manual: Chapter3 Installation 7

) m

(

t h g i e H e s a B Mobile Height

(m) Distance (km) Figure 2 System Deploying The power level has been set to 30dBm (1W) on the transmitter, and the receiver sensitivity for the MHX-910A is -105dBm. System gain can be calculated:

30 - 2 + 6 + 3 - 2 + 105 = 140 dB. When deploying your system, care must be taken to ensure the path loss

(reduction of signal strength from transmitter to receiver in dB) between equipment does not exceed the system gain (140 dB in the above example). It is recommended to design for a gain margin of at least 20 dB to ensure reliable communication. Gain margin is the difference between system gain and path loss. Referring to the same example, suppose the path loss is 113 dB, the gain margin would be 30 dB, which is more than adequate for reliable communication. Path loss is a very complicated calculation which mainly depends on the terrain profile, and the height of the antennas off the ground. The following table provides path loss numbers for varying antenna heights and antenna separation: These numbers are real averages taken from rural environments. They do not apply to urban, non-line-of-sight environments. Table 1 Path Loss Distance

(km) 5 5 8 8 8 16 16 16 16 16 16 Base Height

(m) 15 30 15 15 15 15 15 15 30 30 30 Mobile Height

(m) 2.5 2.5 2.5 5 10 2.5 5 10 10 5 2.5 Path Loss

(dB) 116.5 110.9 124.1 117.7 105 135.3 128.9 116.2 109.6 122.4 128.8 Once the equipment is deployed, you can verify the signal strength by entering into Command Mode and reading Register S123. This register provides the average signal strength in dBm. The minimum strength for communication is roughly -105dBm. For consistent reliable communication, you should try to deploy the equipment such that signal strength exceeds -

85dBm. 8 MHX 920 Operating Manual: Chapter 3 Installation 3.2 Internal Cabling This section describes the recommended procedure for installing cabling and antennas for use with the MHX-910A module. The most common method for installing the module is to run a cable from the modules MCX connector to a reverse TNC bulkhead connector on the chassis of the equipment as shown in Figure 3. This cable can be purchased from Microhard Systems. Reverse TNC connector RG316 Cable with MCX male connector and Reverse TNC bulkhead connector MCX female connector A 0 1 9

-

X H M Figure 3 Suggested Internal Cabling Cable losses are negligible for the short piece used within the chassis. Additional losses up to 0.5 dB may be present in the MCX and Reverse TNC connections. MHX 910A Operating Manual: Chapter3 Installation 9 WARNING during To To satisfy FCC RF exposure for mobile requirements transmitting devices, a separation distance of 23 cm or more be should maintained between the antenna of this device and persons device operation. ensure compliance, operations at closer than this distance is The not recommended. antenna used for this transmitter must not be co-

located in conjunction with any other or transmitter antenna WARNING Direct human contact with the antenna is potentially unhealthy when a MHX-

910A is generating RF energy. Always ensure that the MHX-910A equipment is powered down during installation. WARNING there Never work on an antenna system when is lightning in the area. 3.3 Installing External Cables, Antennas and Lightning Arrestors The installation, removal or maintenance of all antenna components must be carried out by qualified and experienced personnel. Never work on an antenna system when there is lightning in the area. Direct human contact with the antenna is potentially unhealthy when the MHX-910A is generating RF energy. Always ensure that the MHX-910A equipment is powered down during installation. At all time, a distance of 23 cm must be maintained between the antenna and any person when the device is in operation. Surge Arrestors The most effective protection against lightning is to install two lightning

(surge) arrestors, one at the antenna, the other one at the interface with the equipment. The surge arrestor grounding system should be fully interconnected with the transmission tower and power grounding systems to form a single, fully integrated ground circuit. Typically, both ports on surge arrestors are N-female. External Filter Although the MHX-910A is capable of filtering out RF noise in most environments, there are circumstances that require external filtering. Paging towers, and cellular base stations in close proximity to the MHX-910A antenna can desensitize the receiver. Microhard Systems external cavity filter eliminates this problem. The filter has two N-female ports and should be connected in line at the interface to the RF equipment. Weatherproofing Type N and RTNC connectors are not weatherproof. All connectors should be taped with rubber splicing tape (weatherproofing tape), and then coated with a sealant. Cabling The following coax cables are recommended:

Table 2 Cable Loss Cable Loss (dB/100ft) LMR 195 LMR 400 LMR 600 10.7 3.9 2.5 10 MHX 910A Operating Manual: Chapter3 Installation Factors to take into consideration when choosing a cable are:

price;

bend radius limitations (the lower performance cables generally can bend more sharply) performance requirements; and, distance between the equipment and the antenna. When installing the cable, always begin fastening at the top near the antenna connector/surge arrestor. The cable must be supported at the top with a hose clamp or wrap lock, and at 5 ft intervals down the length of the tower. Over-

tightening the fasteners will dent the cable and reduce performance. If properly grounded surge arrestors are not installed at both the top and the bottom of the cable, then the cable should be grounded to the tower at these locations using a cable grounding kit. If the tower is non-conductive, then a separate conductor, physically separate from the cable, should be run down the tower. MHX 910A Operating Manual: Chapter3 Installation 11 To comply with FCC regulations,

.you must limit ERP to 36 dBm or less. Antenna Before choosing an antenna, you should have some knowledge of the path loss and the topology of the equipment. If the equipment is in a fixed location and is to communicate with only one other unit also in a fixed location, then a Yagi antenna is suitable. Choose a Yagi with enough gain to ensure adequate gain margin. When deploying the Yagi, point the antenna towards the intended target, ensuring the antenna elements are perpendicular to the ground for vertical polarization. In applications where there are multiple units that you must communicate with or units, which are in motion, you may select an Omni-directional antenna with appropriate gain. FCC Regulations allow up to 36dBm effective radiated power (ERP). Therefore, the sum of the transmitted power (in dBm), the cabling loss and the antenna gain cannot exceed 36dBm with respect to the isotropic radiator. ERP is calculated as follows:

ERP = Tx Power (dBm) - Cable/Connector Loss (dB) + Antenna Gain (dBi) Antenna Gains must be in dBi when calculating the 36dBm ERP limit. 1dBd = 2.15dBi Use the guidelines in the previous section for calculating cable and connector losses. If cabling and connector losses are 2 dB, then the maximum allowable gain of the antenna will be 8 dB. 12 MHX 920 Operating Manual: Chapter 3 Installation Examples:

FCC and Industry Canada Regulations allow up to 36dBm effective radiated power (ERP). Therefore, the sum of the transmitted power (in dBm), the cabling loss and the antenna gain cannot exceed 36dBm with respect to the isotropic radiator. Example 1) What is the maximum power the MHX-910A can be set to comply with FCC and IC given the following equipment given a Rubber Ducky Antenna Gain 2dBi and no cable or connectors in the system?

Max ERP 36dBm Max TX power = ERP Ant Gain(dBi) + Cable/Connector loss (dB) Ant Gain dBi = 2dBi Max TX power = 36dBm 2dBi + 0dB = 34dBm We can set the modem to the maximum power setting of 30dBm. Example 2) What is the maximum power the MHX-910A can be set to comply with FCC and IC given the following equipment given a Yagi Antenna Gain 12dBd and cable and connector loss of 4.5 dB?

Max ERP 36dBm Max TX power = ERP Ant Gain(dBi) + Cable/Connector loss (dB) Ant Gain dBi = Ant Gain dBd + 2.15 dB Yagi Gain (dBi) = 12 + 2.15 = 14.15dBi Max TX power = 36dBm 14.15dB + 4.5dB = 26.35dBm We must round down Hence Max TX power = 26dBm Example 3) What is the maximum power the MHX-910A can be set to comply with FCC and IC given the following equipment given a Omni Antenna Gain 6dBd and cable and connector loss of 2.5 dB?

Max ERP 36dBm Max TX power = ERP Ant Gain(dBi) + Cable/Connector loss (dB) Ant Gain dBi = Ant Gain dBd + 2.15 dB Omni Gain (dBi) = 6 + 2.15 = 8.15dBi Max TX power = 36dBm 8.15dB + 2.5dB = 30.35dBm Hence Max TX power = 30dBm MHX 910A Operating Manual: Chapter3 Installation 13 14 MHX 920 Operating Manual: Chapter 3 Installation A. Approved Antennas Group Quarter Wave Rubber Ducky Transit Antennas Yagi Antennas Omni Directional Part Number MHS031010 MHS031020 MHS031030 MHS031040 MHS031050 MHS031060 MHS031000 MHS031070 MHS031080 MHS031210 MHS031220 MHS031230 MHS031240 MHS031311 MHS031431 MHS031501 MHS031441 MHS031451 MHS031401 MHS031411 MHS031251 MHS031461 MHS031321 MHS031471 Description

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Right Angle

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Straight

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Right Angle MHS

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Straight MHS

<1.5dBi, 900MHz 1/4 Wave Antenna MCX Right Angle MHS

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Straight 2dBi, 900MHz Rubber Ducky Antenna RPTNC Swivel 2dBi, 900MHz Rubber Ducky Antenna Reverse SMA Swivel 2dBi, 900MHz Rubber Ducky Antenna Reverse SMA Straight 3dBd, 900 MHz Transit Antenna with Ground Plane 3dBd, 900MHz Transit Antenna No Ground Plane 3dBd, 900MHz Transit Antenna Permanent Mount GP 3dBd, 900MHz Transit Antenna Permanent Mount NGP Mounts for Transit Antennas have a RPTNC Pigtail 6dBd, 900MHz Yagi Directional Antenna Antenex, RPTNC Pigtail 6.5dBd, 900MHz Yagi Directional Antenna Bluewave, RPTNC Pigtail 9dBd, 900MHz Yagi Directional Antenna Antenex, RPTNC Pigtail 10dBd, 900 MHz Yagi Directional Antenna Bluewave, RPTNC Pigtail 11dBd, 900 MHz Yagi Directional Antenna Bluewave, RPTNC Pigtail 12dBd, 900MHz Yagi Directional Antenna Antenex, RPTNC Pigtail 12dBd, 900MHz Yagi Directional Antenna Bluewave, RPTNC Pigtail 3dBd, 900MHz Omni Directional Antenna Antenex, RPTNC Pigtail 3dBd, 900 MHz Omni Directional Antenna Bluewave, RPTNC Pigtail 6dBd, 900MHz Omni Directional Antenna Antenex, RPTNC Pigtail 6dBd, 900 MHz Omni Directional Antenna Bluewave, RPTNC Pigtail WARNING Changes or modifications not expressly approved by Microhard Systems Inc. could void the users authority to operate the equipment. This device has been tested with MCX and Reverse Polarity SMA connectors with the antennas listed in Appendix A When integrated in OEM products, fixed antennas require installation preventing end-users from replacing them with non-approved antennas. Antennas not listed in the tables must be tested to comply with FCC Section 15.203

(unique antenna connectors) and Section 15.247 (emissions). Please Contact Microhard Systems Inc. if you need more information. MHX 910A Operating Manual: Appendix A Approved Antennas 15 16 MHX 910A Operating Manual: Appendix A Approved Antennas

LABEL FORMAT AND LOCATION IC: 3143A-04P11 FCC ID: NS904P11 Made in Canada Power: 1 Watt Model: MHX910A TOP View

#17, 2135 - 32nd Avenue N.E. Calgary, Alberta T2E 6Z3 Tel: (403) 248-0028 Fax: (403) 248-2762 Website: http://www.microhardcorp.com April 19 , 2005 FEDERAL COMMUNICATIONS COMMISSION 7435 Oakland Mills Road Columbia, MD 21046 U.S.A. Subject: Request for withholding Documents from public disclosure Applicant:

Product:

Model:

FCC ID:

Microhard Systems Inc. 900MHz OEM Frequency Hopping Module MHX910A NS904P11 Dear Sir/Madam, We, Microhard Systems Inc., would like to request that the schematic diagrams and parts list for this permissive change, submitted with the application for certification be withheld from public disclosure as per Section 0.459 of FCC Rules. This request is made under the provisions of Section 0.457(d) of the Commission's Rules, and Section 552(b)(4) of the Freedom of Information Act. These sections authorize as a withholding from public inspection materials which would be privileged as a matter of law if retained by the person submitting them, and materials which would not customarily be released to the public by that person. If you have any queries, please do not hesitate to contact us:

Tel: (403) 248-0028 Fax: (403) 248-2762 Yours truly, Hany Shenouda Director of Engineering Microhard Systems Inc.

UltraTech Group of Labs 31040/SIT C-1376 46390-2049 200093-0 2 00-034 SL2-IN-E-1119R 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel.: (905) 829-1570 Fax.: (905) 829-8050 Website: www.ultratech-labs.com Email: vic@ultratech-labs.com April 19, 2004 Timco Engineering, Inc. 849 N.W. State Road 45 P.O. Box 370 Newberry, Florida 32669 USA Subject:

FCC Class II Permissive Change Application Under FCC PART 15, Subpart C, Section 15.247 - Frequency Hopping Spread Spectrum

(FHSS) Operating in 902 - 928 MHz Band. Product:

Model No.:

FCC ID:

900 MHz OEM Frequency Hopping Module MHX910A NS904P11 Dear Sir/Madam As appointed agent for Microhard Systems Inc., we would like to submit the Class II Permissive change application to the Timco Engineering, Inc. for recertification of the above product. Please review all files uploaded to TIMCO electronic filing site.

The above radio module was certified by Timco with FCC ID: NS904P11. It was designed to operate with only one Channel Spacing; 400 KHz.

This radio module is now modified to operate on two separate Channel Spacings;

400 KHz and 250 KHz. This is achieved by reducing the occupied bandwidth from the original filing. We have attached the modified schematics and parts-list with this application, all other specifications remain unchanged as per original filing.

Pl find attached a test report showing those test results, which are affected due to this modification to show its compliance with FCC requirements. NOTE: All confidential items will be submitted directly to Timco Engineering E-filing site by the Microhard system Inc. If you have any queries, please do not hesitate to contact us. Yours truly, Tri Minh Luu, P. Eng., V.P., Engineering

900MHz OEM Frequency Hopping Module Model No.: MHX910A FCC ID: NS904P11 Applicant:

Microhard Systems Inc.

#17, 2135 - 32nd Avenue N.E. Calgary, Alberta Canada T2E 6Z3 In Accordance With Federal Communications Commission (FCC) Frequency Hopping Spread Spectrum (FHSS) Part 15, Subpart C, Section 15.247 Operating in 902 - 928 MHz Band UltraTech's File No.: MCRS-006F15C247 This Test report is Issued under the Authority of Tri M. Luu, Professional Engineer, Vice President of Engineering UltraTech Group of Labs Date: April 19, 2004 Report Prepared by: Dharmajit Solanki RFI Engineer Issued Date: April 19, 2004 The results in this Test Report apply only to the sample(s) tested, and the sample tested is randomly selected. This report must not be used by the client to claim product endorsement by NVLAP or any agency of the US Government. Tested by: Mr. Hung Trinh, EMI/RFI Technician Test Dates: April 8 - 18, 2004 UltraTech 3000 Bristol Circle, Oakville, Ontario, Canada, L6H 6G4 Tel.: (905) 829-1570 Fax.: (905) 829-8050 Website: www.ultratech-labs.com, Email: vic@ultratech-labs.com, Email: tri@ultratech-labs.com 31040/SIT C-1376 46390-2049 200093-0 SL2-IN-E-1119R 2 00-034 FCC Part 15, Subpart C, Section 15.247 FHSS 900MHz OEM Frequency Hopping Module, Model MHX910A Contents i FCC ID: NS904P11 EXHIBIT 1. TABLE OF CONTENTS SUBMITTAL CHECK LIST........................................................................................................................1 EXHIBIT 5. EXHIBIT 4. EXHIBIT 2. EXHIBIT 3. INTRODUCTION .........................................................................................................................................2 SCOPE......................................................................................................................................................................... 2 2.1. 2.2. RELATED SUBMITTAL(S)/GRANT(S) .................................................................................................................. 2 2.3. NORMATIVE REFERENCES ................................................................................................................................... 2 PERFORMANCE ASSESSMENT ..............................................................................................................3 3.1. CLIENT INFORMATION.......................................................................................................................................... 3 3.2. EQUIPMENT UNDER TEST (EUT) INFORMATION ............................................................................................ 3 3.3. EUTS TECHNICAL SPECIFICATIONS ................................................................................................................. 4 3.4. ASSOCIATED ANTENNA DESCRIPTIONS........................................................................................................... 4 3.5. LIST OF EUTS PORTS............................................................................................................................................. 5 3.6. ANCILLARY EQUIPMENT...................................................................................................................................... 5 EUT OPERATING CONDITIONS AND CONFIGURATIONS DURING TESTS...............................6 4.1. CLIMATE TEST CONDITIONS ............................................................................................................................... 6 4.2. OPERATIONAL TEST CONDITIONS & ARRANGEMENT FOR TESTS ............................................................ 6 SUMMARY OF TEST RESULTS...............................................................................................................7 5.1. LOCATION OF TESTS.............................................................................................................................................. 7 5.2. APPLICABILITY & SUMMARY OF EMC EMISSION TEST RESULTS ............................................................. 7 5.3. MODIFICATIONS INCORPORATED IN THE EUT FOR COMPLIANCE PURPOSES....................................... 7 EXHIBIT 6. MEASUREMENTS, EXAMINATIONS & TEST DATA FOR EMC EMISSIONS...............................8 6.1. TEST PROCEDURES................................................................................................................................................. 8 6.2. MEASUREMENT UNCERTAINTIES ...................................................................................................................... 8 6.3. MEASUREMENT EQUIPMENT USED ................................................................................................................... 8 6.4. ESSENTIAL/PRIMARY FUNCTIONS AS DECLARED BY THE MANUACTURER.......................................... 8 6.5. COMPLIANCE WITH FCC PART 15 GENERAL TECHNICAL REQUIREMENTS ......................................... 9 6.6. PROVISIONS FOR FREQUENCY HOPPING SYSTEMS [ 15.247(A)(1)]......................................................... 11 6.7. PEAK OUTPUT POWER & EQUIVALENT ISOTROPIC RADIATED POWER (EIRP) [ 15.247(B)] ............. 32 6.8. RF EXPOSURE REQUIRMENTS [ 15.247(I), 1.1310 & 2.1091] ...................................................................... 34 6.9. TRANSMITTER BAND-EDGE & SPURIOUS CONDUCTED EMISSIONS [ 15.247(D)]................................ 37 EXHIBIT 7. MEASUREMENT UNCERTAINTY.........................................................................................................54 7.1. LINE CONDUCTED EMISSION MEASUREMENT UNCERTAINTY................................................................ 54 7.2. RADIATED EMISSION MEASUREMENT UNCERTAINTY .............................................................................. 55 EXHIBIT 8. MEASUREMENT METHODS..................................................................................................................56 8.1. GENERAL TEST CONDITIONS ............................................................................................................................ 56 8.2. METHOD OF MEASUREMENTS - AC MAINS CONDUCTED EMISSIONS .................................................... 57 8.3. EQUIVALENT ISOTROPIC RADIATED POWER (EIRP) ................................................................................... 58 8.4. SPURIOUS EMISSIONS (CONDUCTED & RADIATED).................................................................................... 61 8.5. ALTERNATIVE TEST PROCEDURES.................................................................................................................. 64 ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A EXHIBIT 1. SUBMITTAL CHECK LIST Annex No. Exhibit Type

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Test Report Description of Contents

Exhibit 1: Submittal check lists

Exhibit 2: Introduction

Exhibit 3: Performance Assessment

Exhibit 4: EUT Operation and Configuration during Tests

Exhibit 5: Summary of test Results

Exhibit 6: Measurement Data

Exhibit 7: Measurement Uncertainty

Exhibit 8: Measurement Methods

AC Conducted Emissions Setup Photos

Radiated Emissions Setup Photos External EUT Photos Internal EUT Photos

Letter from Ultratech for Certification Request

Letter from the Applicant to appoint Ultratech to act as an agent

Letter from the Applicant to request for Confidentiality Filing

Microhard Systems Inc. Modular Request

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ID Label

Location of ID Label Block Diagram Schematics Test Setup Photos External EUT Photos Internal EUT Photos Cover Letters Attestation Statements ID Label/Location Info Block Diagrams Schematic Diagrams Parts List/Tune Up Info Parts List Operational Description Operation Description RF Exposure Info Users Manual MPE Evaluation, see section 6.9 in this Test Report for details. 900 MHz Spread Spectrum OEM Module Operating Manual 1 2 3 4 5 6 7 8 9 10 11 12 Page 1 FCC ID: NS904P11 Quality Check (OK) OK N/A N/A N/A OK

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N/A N/A OK OK OK OK N/A ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A EXHIBIT 2. INTRODUCTION Page 2 FCC ID: NS904P11 2.1. SCOPE Reference:

Title:

Purpose of Test:

FCC Part 15, Subpart C, Section 15.247 Code of Federal Regulations (CFR), Title 47 Telecommunication, Part 15 To gain FCC Class II Permissive Change Certification for Frequency Hopping Spread Spectrum Transceiver Operating in the Frequency Band 902 - 928 MHz. Test Procedures: Conducted emissions measurements were conducted in accordance with American National Standards Institute ANSI C63.4 - American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz.

[ x ] Commercial, industrial or business environment

[ x ] Residential environment Environmental Classification:

2.2. RELATED SUBMITTAL(S)/GRANT(S) None. 2.3. NORMATIVE REFERENCES Publication 47 CFR Parts 0-

19 ANSI C63.4 Year 2003 2003 CISPR 22 &

EN 55022 CISPR 16-1 FCC Public Notice DA 00-705 FCC Public Notice DA 00-1407 FCC ET Docket No. 99-231 2003 2003 2003 2000 2000 2002 Title Code of Federal Regulations Telecommunication American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz Limits and Methods of Measurements of Radio Disturbance Characteristics of Information Technology Equipment Specification for Radio Disturbance and Immunity measuring apparatus and methods Filing and Measurement Guidelines for Frequency Hopping Spread Spectrum Systems Part 15 Unlicensed Modular Transmitter Approval Amendment to FCC Part 15 of the Commission's Rules Regarding to Spread Spectrum Devices ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 Page 3 FCC ID: NS904P11 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A EXHIBIT 3. PERFORMANCE ASSESSMENT 3.1. CLIENT INFORMATION APPLICANT Name:

Address:

Microhard Systems Inc.

#17, 2135 - 32nd Avenue N.E. Calgary, Alberta Canada T2E 6Z3 Contact Person: Mr. Hany Shenouda Phone #: 403 248-0028 Fax #: 403 248 2762 Email Address: shenouda@microhardcorp.com Name:

Address:

MANUFACTURER Microhard Systems Inc.

#17, 2135 - 32nd Avenue N.E. Calgary, Alberta Canada T2E 6Z3 Contact Person: Mr. Hany Shenouda Phone #: 403 248-0028 Fax #: 403 248-2762 Email Address: shenouda@microhardcorp.com 3.2. EQUIPMENT UNDER TEST (EUT) INFORMATION The following information (with the exception of the Date of Receipt) has been supplied by the applicant. Brand Name:

Product Name:

Model Name or Number:

Serial Number:

Type of Equipment:

Input Power Supply Type:

Primary User Functions of EUT: Modular transceiver for long-range data communications Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module MHX910A Test Sample Spread Spectrum Transmitter External Regulated DC Sources between industrial serial communications devices. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 3.3. EUTS TECHNICAL SPECIFICATIONS Equipment Type:

TRANSMITTER

Mobile

Base Station (fixed use) Page 4 FCC ID: NS904P11 Intended Operating Environment: Commercial, industrial or business environment Power Supply Requirement:

RF Output Power Rating:

Operating Frequency Range:

RF Output Impedance:

Channel Spacing:

Duty Cycle:

20 dB Bandwidth:

Modulation Type:

Channel Occupancy:

Antenna Connector Type:

Residential environment 5VDC to 30VDC 1 mW 1 W 902.4 927.6 MHz 50 Ohms 400 kHz 250 kHz Continuous 262.1 kHz (for 400 KHz Channel Spacing) 199.4 kHz (for 250 KHz Channel Spacing) CP FSK 122.64 ms within 20 second period The MHX910A Module is tested with MCX and Reverse Polarity SMA 3.4. ASSOCIATED ANTENNA DESCRIPTIONS There are five antenna families:

1. Quarter Wave Antenna Family 2. Rubber Ducky Antenna Family 3. Transit Antenna Family 4. Yagi Antenna Family 5. Omni Directional Antenna Family The highest gain antenna from each of the above antenna families were selected for testing to represents the worst-case. Refer to antennas list exhibit for detailed specifications under original filing. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 3.5. LIST OF EUTS PORTS Port Number 1 EUTs Port Description Number of RF IN/OUT Port 2 DC Supply & I/O Port 1 Identical Ports Connector Type 1 Reversed SMA or MCX for external antenna Pin Header Page 5 FCC ID: NS904P11 Cable Type

(Shielded/Non-shielded) Shielded coaxial cable with unique coupling connectors No cable, direct connection 3.6. ANCILLARY EQUIPMENT The EUT was tested while connected to the following representative configuration of ancillary equipment necessary to exercise the ports during tests:

Ancillary Equipment # 1 Description:

Brand name:

Model Name or Number:

FCC Certification Serial Number:

Connected to EUTs Port:

OMNIBOOK Laptop Hewlett Packard DN-2100 FCC DoC TW63403246 The laptop RS232 port is connected to EUT with respect to the test jig ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A EXHIBIT 4. EUT OPERATING CONDITIONS AND CONFIGURATIONS Page 6 FCC ID: NS904P11 DURING TESTS 4.1. CLIMATE TEST CONDITIONS The climate conditions of the test environment are as follows:

Temperature:

Humidity:

Pressure:

Power Input Source:

21oC 51%

102 kPa 5VDC to 5.5VDC 4.2. OPERATIONAL TEST CONDITIONS & ARRANGEMENT FOR TESTS Operating Modes:

Each of lowest, middle and highest channel frequencies transmits continuously for emissions measurements.

The EUT operates in normal Frequency Hopping mode for occupancy duration, and frequency separation. Special Test Software & Hardware: Special software provided by the Applicant are installed to allow Transmitter Test Antenna:

the EUT to operates in hopping mode or at each channel frequency continuously. For example, the transmitter will be operated at each of lowest, middle and highest frequencies individually continuously during testing. The EUT is tested with the antenna fitted in a manner typical of normal intended use as a non-integral antenna equipment as described with the test results. Transmitter Test Signals Frequency Band(s):

Frequency(ies) Tested:

(Near lowest, near middle & near highest frequencies in the frequency range of operation.) RF Power Output:

(measured maximum output power at antenna terminals) Normal Test Modulation:

Modulating Signal Source:

902.5 927.5 MHz 902.5, 915 and 927.5 MHz 1 Watts (conducted) and 36 dBm EIRP maximum CP FSK Internal ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A EXHIBIT 5. SUMMARY OF TEST RESULTS Page 7 FCC ID: NS904P11 5.1. LOCATION OF TESTS All of the measurements described in this report were performed at Ultratech Group of Labs located in the city of Oakville, Province of Ontario, Canada. AC Power Line Conducted Emissions were performed in UltraTech's shielded room, 24'(L) by 16'(W) by 8'(H). Radiated Emissions were performed at the Ultratech's 3 Meter Open Field Test Site (OFTS) situated in the Town of Oakville, province of Ontario. The above sites have been calibrated in accordance with ANSI C63.4, and found to be in compliance with the requirements of Section 2.948 of the FCC Rules. The descriptions and site measurement data of the Oakville Open Field Test Site has been filed with FCC office (FCC File No.: 31040/SIT 1300B3) and Industry Canada office (Industry Canada File No.: IC2049). Last Date of Site Calibration: January 10, 2005. 5.2. APPLICABILITY & SUMMARY OF EMC EMISSION TEST RESULTS FCC Section(s) Test Requirements 15.107(a) 15.247(a)(1) 15.247(b) 15.247(b)(5), 1.1307, 1.1310, 2.1091 & 2.1093 15.247(d) AC Power Line Conducted Emissions Measurements Provisions for Frequency Hopping Systems Peak Output Power RF Exposure Limit Band-Edge and RF Conducted Spurious Emissions at the Transmitter Antenna Terminal 15.247(d), 15.209

& 15.205 Transmitter Spurious Radiated Emissions

* - The test characteristics are not affected due to modification made in the EUT. Compliance

(Yes/No) N/A*

Yes Yes Yes Yes N/A*

The digital circuit portion of the EUT has been tested and verified to comply with FCC Part 15, Subpart B, Class B Digital Devices and the associated Radio Receiver has also been tested and found to comply with FCC Part 15, Subpart B Radio Receivers. The engineering test report is available upon request. 5.3. MODIFICATIONS INCORPORATED IN THE EUT FOR COMPLIANCE PURPOSES None. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A EXHIBIT 6. MEASUREMENTS, EXAMINATIONS & TEST DATA FOR EMC Page 8 FCC ID: NS904P11 EMISSIONS 6.1. TEST PROCEDURES This section contains test results only. Details of test methods and procedures can be found in Exhibit 8 of this report, ANSI C63.4 and FCC Public Notice @ DA 00-705 (March 30, 2000) Filing and Measurement Guidelines for Frequency Hopping Spread Spectrum Systems. 6.2. MEASUREMENT UNCERTAINTIES The measurement uncertainties stated were calculated in accordance with requirements of UKAS Document NIS 81 with a confidence level of 95%. Please refer to Exhibit 7 for Measurement Uncertainties. 6.3. MEASUREMENT EQUIPMENT USED The measurement equipment used complied with the requirements of the Standards referenced in the Methods &

Procedures ANSI C63.4 and CISPR 16-1. 6.4. ESSENTIAL/PRIMARY FUNCTIONS AS DECLARED BY THE MANUACTURER The essential function of the EUT is to correctly communicate data to and from radios over RF link. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.5. COMPLIANCE WITH FCC PART 15 GENERAL TECHNICAL REQUIREMENTS FCC Section FCC Rules 15.31 Manufacturers Clarification See Operational Description Page 9 FCC ID: NS904P11 The hoping function must be disabled for tests, which should be performed with the EUT transmitting on the number of frequencies specified in this Section. The measurements made at the upper and lower ends of the band of operation should be made with the EUT tuned to the highest and lowest available channels. Described how the EUT complies with the requirement that either its antenna is permanently attached, or that it employs a unique antenna connector, for every antenna proposed for use with the EUT. The exception is in those cases where EUT must be professionally installed. In order to demonstrate that professional installation is required, the following 3 points must be addressed:

The application (or intended use) of the The installation requirements of the EUT The method by which the EUT will be EUT marketed type (e.g. Yagi, patch, grid, dish, etc), Provided the information for every antenna proposed for use with the EUT:

manufacturer and model number Description of how the EUT meets the definition of a frequency hopping spread spectrum, found in Section 2.1. Based on the technical description. gain with reference to an isotropic radiator 15.203 15.204 15.247(a) The antenna employs unique antenna connectors: MCX and Reverse Polarity SMA Please see proposed antenna list. See Operational Description ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC Section FCC Rules 15.247(a) Pseudo Frequency Hopping Sequence:

Describe how the hopping sequence is generated. Provide an example of the hopping sequence channels, in order to demonstrate that the sequence meets the requirements specified in the definition of a frequency hopping spread spectrum system, found in Section 2.1 Equal Hopping Frequency Use:

Describe how each individual EUT meets the requirement that each of its hopping channels is used equally on average (e.g. that each new transmission event begins on the next channel in the hopping sequence after final channel used in the previous transmission events). Describe how the EUT complies with the requirement that it be designed to be capable of operating as a true frequency hopping system Describe how the EUT complies with the requirement that it not have the ability to coordinated with other FHSS is an effort to avoid the simultaneous occupancy of individual hopping frequencies by multiple transmitters System Receiver Input Bandwidth:

Describe how the associated receiver(s) complies with the requirement that its input bandwidth

(either RF or IF) matches the bandwidth of the transmitted signal. System Receiver Hopping Capability:

Describe how the associated receiver(s) has the ability to shift frequencies in synchronization with the transmitted signals 15.247(a) 15.247(g) 15.247(h) Public Notice DA 00-705 Public Notice DA 00-705 Page 10 FCC ID: NS904P11 Manufacturers Clarification See Operational Description See Operational Description See Operational Description See Operational Description See Operational Description See Operational Description ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 PROVISIONS FOR FREQUENCY HOPPING SYSTEMS [ 15.247(a)(1)]

FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.6. 6.6.1. Limits

15.247(a)(1): Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater. The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudo-randomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hopping channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals. Page 11 FCC ID: NS904P11

15.247(a)(1)(i): For frequency hopping systems operating in the 902928 MHz band: if the 20 dB bandwidth of the hopping channel is less than 250 kHz, the system shall use at least 50 hopping frequencies and the average time of occupancy on any frequency shall not be greater than 0.4 seconds within a 20 second period; if the 20 dB bandwidth of the hopping channel is 250 kHz or greater, the system shall use at least 25 hopping frequencies and the average time of occupancy on any frequency shall not be greater than 0.4 seconds within a 10 second period. The maximum allowed 20 dB bandwidth of the hopping channel is 500 kHz. 6.6.2. Method of Measurements Refer to FCC 15.247(a)(1), ANSI C63.4 and Public Notice DA 00-705 Carrier Frequency Separation:

The hopping function of the EUT is enabled. Use the spectrum analyzer setting as follows:

Span = wide enough to capture the peaks of two adjacent channels

RBW = 1% of the span

VBW > RBW

Sweep = Auto

Detector = peak

Trace = max hold Number of hopping frequency:

The hopping function of the EUT is enabled. Use the spectrum analyzer setting as follows:

Span = the frequency band of operation

RBW = 1% of the span

VBW > RBW

Sweep = Auto

Detector = peak

Trace = max hold ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Time of Occupancy (Dwell Time):

The hopping function of the EUT is enabled. Use the spectrum analyzer setting as follows:

Span = 0 Hz centered on a hopping channel

RBW = 1 MHz

VBW > RBW

Sweep = as necessary to capture the entire dwell time per hopping channel

Detector = peak

Trace = max hold Page 12 FCC ID: NS904P11 If possible, use the marker-delta function to determine the dwell time. If this value varies with different modes of operation (e.g. date rate modulation format, etc.), repeat this test for each variation. The limit is specified in one of the subparagraphs of this Section. Submit this plot(s). An oscilloscope may be used instead of a spectrum analyzer. 20 dB Bandwidth:

Use the spectrum analyzer setting as follows:

Span = approximately 2 to 3 times the 20 dB bandwidth, centered on a hopping channel

RBW = 1% of the 20 dB bandwidth

VBW > RBW

Sweep = auto

Detector = peak

Trace = max hold

The transmitter shall be transmitting at its maximum data rate.

Allow the trace to stabilize.

Use the marker-to-peak function to set the marker to the peak of the emission.

Use the marker-delta function to measure 20 dB down on both sides of the emission.

The 20 dB BW is the delta reading in frequency between two markers. 6.6.3. Test Arrangement Spectrum Analyzer Equipment Under Test

(EUT) Magetek AC Adaptor Model WDU12-1200 Input: 120Vac 60Hz Output: 12Vdc 120VAC 60Hz ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.6.4. Test Equipment List Test Instruments Spectrum Analyzer Manufacturer Rhode & Schwarz FSEK20/B4/B21 Model No. Page 13 FCC ID: NS904P11 Serial No. 834157/005 Frequency Range 9kHz 40GHz 6.6.5. Test Data Test Description 20 dB BW of the hopping channel Channel Hopping Frequency Separation Number hopping frequencies Average Time of Occupancy FCC Specification 500 kHz maximum Measured Values 199.4 kHz Minimum of 25 kHz or 20dB BW whichever is greater. At least 50 hopping frequencies Not greater than 0.4 seconds within 20 second period 248.5 kHz 101 hopping frequencies 122.64 ms within 20 second period Comments Pass; see plots 1 to 3 for measurement details. Pass; see plot 4 for measurement details. Pass; see plots 5 to 11 for measurement details Pass; see plots 12 to 17 for measurement details. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 14 FCC ID: NS904P11 Plot 1:

20 dB Bandwidth Test Frequency: 902.5 MHz ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 15 FCC ID: NS904P11 Plot 2:

20 dB Bandwidth Test Frequency: 915 MHz ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 16 FCC ID: NS904P11 Plot 3:

20 dB Bandwidth Test Frequency: 927.5 MHz ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 17 FCC ID: NS904P11 Plot 4:

Carrier Frequency Separation ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 18 FCC ID: NS904P11 Plot 5:

Number of Hopping Frequencies 101 Hopping Frequencies (from 902-928 MHz) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 19 FCC ID: NS904P11 Plot 6:

Number of Hopping Frequencies 14 hopping frequencies (from 901-906 MHz) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 20 FCC ID: NS904P11 Plot 7:

Number of Hopping Frequencies 16 hopping frequencies (from 905-910 MHz) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 21 FCC ID: NS904P11 Plot 8:

Number of Hopping Frequencies 20 hopping frequencies (from 909-915 MHz) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 22 FCC ID: NS904P11 Plot 9:

Number of Hopping Frequencies 20 Hopping Frequencies (from 914-920 MHz) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 23 FCC ID: NS904P11 Plot 10:

Number of Hopping Frequencies 20 hopping frequencies (from 919-925 MHz) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 24 FCC ID: NS904P11 Plot 11:

Number of Hopping Frequencies 11 hopping frequencies (from 924-930 MHz) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 25 FCC ID: NS904P11 Plot 12:

Time of Occupancy Test Frequency: 902.5 MHz Dwell Time @ 902.5 MHz = 20.44 ms ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 26 FCC ID: NS904P11 Plot 13:

Time of Occupancy Test Frequency: 902.5 MHz Average time of occupancy in 20 s = (Dwell Time @ 902.5 MHz) x (number of hops in 20 s)

= 20.44 ms x 6

= 122.64 ms ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 27 FCC ID: NS904P11 Plot 14:

Time of Occupancy Test Frequency: 915 MHz Dwell Time @ 915 MHz = 20.44 ms ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 28 FCC ID: NS904P11 Plot 15:

Time of Occupancy Test Frequency: 915 MHz Average time of occupancy in 20 s = (Dwell Time @ 915 MHz) x (number of hops in 20 s)

= 20.44 ms x 6

= 122.64 ms ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 29 FCC ID: NS904P11 Plot 16:

Time of Occupancy Test Frequency: 927.5 MHz Dwell Time @ 927.5 MHz = 20.44 ms ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 30 FCC ID: NS904P11 Plot 17:

Time of Occupancy Test Frequency: 927.5 MHz Average time of occupancy in 20 s = (Dwell Time @ 927.5 MHz) x (number of hops in 20 s)

= 20.44 ms x 6

= 122.64 ms ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC Specification FCC Requirement @ Section 15.247(a)(1):

The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudorandomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hopping channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals FCC Requirement @ Section 15.247(g):

Describe how the EUT complies with the requirement that it be designed to be capable of operating as a true frequency hopping system FCC Requirement @ Section 15.247(h):

Describe how the EUT complies with the requirement that it does not have the ability to coordinated with other FHSS is an effort to avoid the simultaneous occupancy of individual hopping frequencies by multiple transmitters Page 31 FCC ID: NS904P11 Manufacturers Explanation Conform. Refer to section 6.5 of this report. Conform. Refer to section 6.5 of this report. Conform. Refer to section 6.5 of this report. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.7. PEAK OUTPUT POWER & EQUIVALENT ISOTROPIC RADIATED POWER (EIRP) [

Page 32 FCC ID: NS904P11 15.247(b)]

6.7.1. Limits 15.247(b)(2): For frequency hopping systems operating in the 902-928 MHz band: 1 watt for systems employing at least 50 hopping channels; and, 0.25 watts for systems employing less than 50 hopping channels, but at least 25 hopping channels. 15.247(b)(4): If the antennas of directional gain greater than 6 dBi are used, the peak power from the intentional radiator shall be reduced below, as appropriate, by the amount in dB that the directional gain of the antenna exceeds 6 dBi. 6.7.2. Method of Measurements Refer to Exhibit 8, Section 8.3 and ANSI C63.4. 6.7.3. Test Arrangement Equipment Under Test Spectrum Analyzer

(EUT) Magetek AC Adaptor Model WDU12-1200 Input: 120Vac 60Hz Output: 12Vdc 120VAC 60Hz 6.7.4. Test Equipment List Test Instruments Spectrum Analyzer Manufacturer Rhode & Schwarz FSEK20/B4/B21 Model No. Serial No. 834157/005 Frequency Range 9kHz 40GHz ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.7.5. Test Data Peak Output Power at Antenna Terminal

(dBm) Page 33 FCC ID: NS904P11 Calculated EIRP

(dBm) Peak Output Power Limit

(dBm) EIRP Limit

(dBm) Transmitter Channel Frequency

(MHz) Lowest Middle Highest Lowest Middle Highest 902.5 915.0 927.5 902.5 915.0 927.5 Power Setting: 1W 29.95 29.95 29.67 See Note 1 See Note 1 See Note 1 Power Setting: 1 mW

-2.25 0.08

-2.19 See Note 1 See Note 1 See Note 1 30.0 30.0 30.0 30.0 30.0 30.0 36.0 36.0 36.0 36.0 36.0 36.0 Notes:

1. The EIRP shall be calculated based on the transmitter antenna gain (GdBi), cable loss (CLdB) and peak output power at antenna terminal (PdBm). Calculated EIRP = PdBm + GdBi - CLdB 2. EIRP shall not exceed 36 dBm limit (Power Setting = 36 dBm GdBi + GdBi). See pages 4 - 5 of the Operating Manual for instruction of power setting. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.8. RF EXPOSURE REQUIRMENTS [ 15.247(i), 1.1310 & 2.1091]

6.8.1. Limits

FCC 15.247(i): Systems operating under provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commissions guidelines. See @ 1.1307(b)(1). Page 34 FCC ID: NS904P11

FCC 1.1310:- The criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in 1.1307(b). 6.8.2. Method of Measurements Refer to FCC @ 1.1310, 2.1091 and Public Notice DA 00-705 (March 30, 2000) Spread spectrum transmitters operating under section 15.247 are categorically from routine environmental evaluation to demonstrating RF exposure compliance with respect to MPE and/or SAR limits. These devices are not exempted from compliance (As indicated in Section 15.247(b)(4), these transmitters are required to operate in a manner that ensures that exposure to public users and nearby persons) does not exceed the Commissions RF exposure guidelines (see Section 1.1307 and 2.1093). Unless a device operates at substantially low power levels, with a low gain antenna(s), supporting information is generally needed to establish the various potential operating configurations and exposure conditions of a transmitter and its antenna(s) in order to determine compliance with the RF exposure guidelines. In order to demonstrate compliance with MPE requirements (see Section 2.1091), the following information is typically needed:

(1) Calculation that estimates the minimum separation distance (20 cm or more) between an antenna and persons required to satisfy power density limits defined for free space.

(2) Antenna installation and device operating instructions for installers (professional/unskilled users), and the parties responsible for ensuring compliance with the RF exposure requirement

(3) Any caution statements and/or warning labels that are necessary in order to comply with the exposure limits

(4) Any other RF exposure related issues that may affect MPE compliance ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 Page 35 FCC ID: NS904P11 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Calculation Method of RF Safety Distance:

S = PG/4r2 =EIRP/4r2 P: power input to the antenna in mW EIRP: Equivalent (effective) isotropic radiated power S: power density mW/cm2 G: numeric gain of antenna relative to isotropic radiator r: distance to centre of radiation in cm Where:

r = EIRP/4S For portable transmitters (see Section 2.1093), or devices designed to operate next to a persons body, compliance is determined with respect to the SAR limit (define in the body tissues) for near-field exposure conditions. If the maximum average output power, operating condition configurations and exposure conditions are comparable to those of existing cellular and PCS phones, SAR evaluation may be required in order to determine if such a device complies with SAR limit. When SAR evaluation data is not available, and the additional supporting information cannot assure compliance, the Commission may request that an SAR evaluation be performed, as provided for in Section 1.1307(d) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.8.3. Test Data Page 36 FCC ID: NS904P11 Evaluation of RF Exposure Compliance Requirements RF Exposure Requirements Compliance with FCC Rules Minimum calculated separation distance between antenna and persons required: *23 cm Manufacturer instruction for separation distance between antenna and persons required: 23 cm. Antenna installation and device operating instructions for installers (professional/unskilled users), and the parties responsible for ensuring compliance with the RF exposure requirement Antenna installation and device operating instructions shall be provided to installers to maintain and ensure compliance with RF exposure requirements. Caution statements and/or warning labels that are necessary in order to comply with the exposure limits Any other RF exposure related issues that may affect MPE compliance Please refer to Users Manual for RF Exposure Information. None.

*The minimum separation distance between the antenna and bodies of users are calculated using the following formula:

RF EXPOSURE DISTANCE LIMITS: r = (PG/4S)1/2 = (EIRP/4S)1/2 S = 902/1500 mW/cm2 EIRP = 36.0 dBm = 1036/10 mW max. (Worst Case) r = (EIRP/4S)1/2 = (1036/10/4(902/1500)) 1/2 = 23 cm ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 Page 37 FCC ID: NS904P11 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.9. TRANSMITTER BAND-EDGE & SPURIOUS CONDUCTED EMISSIONS [ 15.247(d)]

6.9.1. Limits In any 100 KHz bandwidth outside the operating frequency band, the radio frequency power that is produced by modulation products of the spreading sequence, the information sequence and the carrier frequency shall be at least 20 dB below that in any 100 KHz bandwidth within the band that contains the highest level of the desired power. 6.9.2. Method of Measurements Refer to Exhibit 8, Section 8.4 of this test report. 6.9.3. Test Arrangement Spectrum Analyzer Equipment Under Test

(EUT) Magetek AC Adaptor Model WDU12-1200 Input: 120Vac 60Hz Output: 12Vdc 120VAC 60Hz 6.9.4. Test Equipment List Test Instruments Spectrum Analyzer Manufacturer Rhode & Schwarz FSEK20/B4/B21 Model No. Serial No. 834157/005 Frequency Range 9kHz 40GHz ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.9.5. Test Data Page 38 FCC ID: NS904P11 6.9.5.1. Band-Edge RF Conducted Emissions Refer to the following test data plots (18 to 21) for measurement results:

Plot 18:

Band-Edge RF Conducted Emissions Low End of Frequency Band, Ch Freq.: 902.5 MHz Continuous Mode ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 39 FCC ID: NS904P11 Plot 19:

Band-Edge RF Conducted Emissions Low End of Frequency Band, Ch Freq.: 902.5 MHz Pseudorandom Channel Hopping Mode ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 40 FCC ID: NS904P11 Plot 20:

Band-Edge RF Conducted Emissions High End of Frequency Band, Ch Freq.: 927.5 MHz Continuous Mode ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 41 FCC ID: NS904P11 Plot 21:

Band-Edge RF Conducted Emissions High End of Frequency Band, Ch Freq.: 927.5 MHz Pseudorandom Channel Hopping Mode ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 6.9.5.2. Spurious RF Conducted Emissions Page 42 FCC ID: NS904P11 Lowest Frequency (902.5 MHz) 6.9.5.2.1. The emissions were scanned from 10 MHz to 10 GHz; refer to the following test data plots 22 to 25 for measurement results. Spurious RF Conducted Emissions Transmitter Frequency: 902.5 MHz at 1W Output Power Setting Plot 22:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 43 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 902.5 MHz at 1W Output Power Setting Plot 23:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 44 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 902.5 MHz at 1mW Output Power Setting Plot 24:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 45 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 902.5 MHz at 1mW Output Power Setting Plot 25:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 46 FCC ID: NS904P11 6.9.5.2.2. Middle Frequency (915.0 MHz) The emissions were scanned from 10 MHz to 10 GHz; refer to the following test data plots 26 to 29 for measurement results. Spurious RF Conducted Emissions Transmitter Frequency: 915 MHz at 1W Output Power Setting Plot 26:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 47 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 915 MHz at 1W Output Power Setting Plot 27:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 48 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 915 MHz at 1mW Output Power Setting Plot 28:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 49 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 915 MHz at 1mW Output Power Setting Plot 29:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 50 FCC ID: NS904P11 6.9.5.2.3. Highest Frequency (927.5 MHz) The emissions were scanned from 10 MHz to 10 GHz; refer to the following test data plots 30 to 33 for measurement results. Spurious RF Conducted Emissions Transmitter Frequency: 927.5 MHz at 1W Output Power Setting Plot 30:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 51 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 927.5 MHz at 1W Output Power Setting Plot 31:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 52 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 927.5 MHz at 1mW Output Power Setting Plot 32:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 53 FCC ID: NS904P11 Spurious RF Conducted Emissions Transmitter Frequency: 927.5 MHz at 1mW Output Power Setting Plot 33:

ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A EXHIBIT 7. MEASUREMENT UNCERTAINTY Page 54 FCC ID: NS904P11 The measurement uncertainties stated were calculated in accordance with the requirements of NIST Technical Note 1297 and NIS 81 (1994) 7.1. LINE CONDUCTED EMISSION MEASUREMENT UNCERTAINTY CONTRIBUTION

(Line Conducted) PROBABILITY DISTRIBUTION UNCERTAINTY (dB) 9-150 kHz 0.15-30 MHz EMI Receiver specification LISN coupling specification Cable and Input Transient Limiter calibration Mismatch: Receiver VRC 1 = 0.03 LISN VRC R = 0.8(9 kHz) 0.2 (30 MHz) Uncertainty limits 20Log(1+1R) System repeatability Repeatability of EUT Combined standard uncertainty Expanded uncertainty U Rectangular Rectangular Normal (k=2) U-Shaped Std. deviation

--

Normal Normal (k=2)

+1.5

+1.5

+0.3

+0.2

+0.2

--

+1.25

+2.50

+1.5

+1.5

+0.5

+0.3

+0.05

--

+1.30

+2.60 Sample Calculation for Measurement Accuracy in 450 kHz to 30 MHz Band:

uc(y) = mui I=1 U = 2uc(y) = + 2.6 dB 2(y) = + (1.52 + 1.52)/3+ (0.5/2) 2 + (0.05/2) 2+0.352 = + 1.30 dB ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 7.2. RADIATED EMISSION MEASUREMENT UNCERTAINTY Page 55 FCC ID: NS904P11 CONTRIBUTION

(Radiated Emissions) Antenna Factor Calibration Cable Loss Calibration EMI Receiver specification Antenna Directivit Antenna factor variation with height Antenna phase center variation Antenna factor frequency interpolation Measurement distance variation Site imperfections Mismatch: Receiver VRC 1 = 0.2 Antenna VRC R = 0.67(Bi) 0.3 (Lp) Uncertainty limits 20Log(1+1R) System repeatability Repeatability of EUT Combined standard uncertainty Expanded uncertainty U PROBABILITY DISTRIBUTION Normal (k=2) Normal (k=2) Rectangular Rectangular Rectangular Rectangular Rectangular Rectangular Rectangular U-Shaped Std. Deviation UNCERTAINTY (+ dB) 3 m 10 m

+1.0

+1.0

+0.5

+0.3

+1.5

+1.5

+0.5

+0.5

+0.5

+2.0

+0.2 0.0

+0.25

+0.25

+0.4

+0.6

+2.0

+2.0

+1.1

-1.25

+0.5

-

+0.5

+0.5

-

Normal Normal (k=2)

+2.19 / -2.21

+4.38 / -4.42

+1.74 / -1.72

+3.48 / -3.44 Calculation for maximum uncertainty when 3m biconical antenna including a factor of k = 2 is used:

U = 2uc(y) = 2x(+2.19) = +4.38 dB And U = 2uc(y) = 2x(-2.21) = -4.42 dB ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 Page 56 FCC ID: NS904P11 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A EXHIBIT 8. MEASUREMENT METHODS 8.1. GENERAL TEST CONDITIONS The following test conditions shall be applied throughout the tests covered in this report. 8.1.1. Normal temperature and humidity The actual values during tests shall be recorded in the test report. Normal temperature: +15oC to +35oC Relative Humidity: +20% to 75%

8.1.2. Normal power source 8.1.2.1. Mains Voltage The nominal test voltage of the equipment to be connected to mains shall be the nominal mains voltage which is the declared voltage or any of the declared voltages for which the equipment was designed. The frequency of test power source corresponding to the AC mains shall be between 59 Hz and 61 Hz. 8.1.2.2. Battery Power Source. For operation from battery power sources, the nominal test voltage shall be as declared by the equipment manufacturer. This shall be recorded in the test report. 8.1.3. Operating Condition of Equipment under Test All tests were carried out while the equipment operated at the following frequencies:

- The lowest operating frequency,

- The middle operating frequency and

- The highest operating frequency Modulation were applied using the Test Data sequence The transmitter was operated at the highest output power, or in the case the equipment able to operate at more than one power level, at the lowest and highest output powers ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 8.2. METHOD OF MEASUREMENTS - AC MAINS CONDUCTED EMISSIONS AC Mains conducted emissions measurements were performed in accordance with the standard against Page 57 FCC ID: NS904P11 appropriate limits for each detector function. The test was performed in the shielded room, 24'(L) by 16'(W) by 8'(H). The test was performed were made over the frequency range from 150 kHz to 30 MHz to determine the line-

to-ground radio noise voltage which was conducted from the EUT power-input terminals that were directly connected to a public power network. The EUT normally received power from another device that connects to the public utility ac power lines, measurements would be made on that device with the EUT in operation to ensure that the device continues to comply with the appropriate limits while providing the EUT with power. If the EUT operates only from internal or dedicated batteries, with no provisions for connection to the public utility ac power lines, AC Mains conducted measurements are not required. Table-top devices were placed on a platform of nominal size 1 m by 1.5m raised 80 cm above the conducting ground plane. The EUT current-carrying power lead, except the ground (safety) lead, was individually connected through a LISN to the power source. All unused 50-Ohm connectors of the LISN was terminated in 50-ohm when not connected to the measuring instruments. The line cord of the EUT connected to one LISN which was connected to the measuring instrument. Those power cords for the units of devices not under measurement were connected to a separate multiple ac outlet. Drawings and photographs of typically conducted emission test setups were shown in the Test Report. Each current-carrying conductor of the EUT shall be individually tested. The EUT was normally operated with a ground (safety) connection, the EUT was connected to the ground at the LISN through a conductor provided in the lead from the ac power mains to the LISN. The excess length of the power cord was folded back and forth in an 8-shape on a wooden strip with a vertical prong located on the top of the LISN case. The EUT was set-up in its typical configuration and operated in its various modes as described in this test A preliminary scan was made by using spectrum analyzer system with the detector function set to PEAK mode (9 KHz RBW, VBW > RBW), frequency span 150 kHz to 30 MHz. The maximum conducted emission for a given mode of operation was found by using the following step-by-

report. step procedure:

Step 1. Monitor the frequency range of interest at a fixed EUT azimuth. Step 2. Manipulate the system cables and peripheral devices to produce highest amplitude signal relative to the limit. Note the amplitude and frequency of the suspect signal. Step 3. The effects of various modes of operation is examined. This is done by varying equipment operation modes as step 2 is being performed. Step 4. After completing step 1 through 3, record EUT and peripheral device configuration, mode of operation, cable configuration, signal levels and frequencies for final test. Each highest signal level at the maximized test configuration was zoomed in a small frequency span on the spectrum analyzer's display (the manipulation of cables and peripheral devices and EUT operation modes might have to be repeated to obtain the highest signal level with the spectrum analyzer set to PEAK detector mode 10 KHz RBW and VBW > RBW). The spectrum analyzer was then set to CISPR QUASI-PEAK detector mode (9 KHz RBW, 1 MHz VBW) and AVERAGE detector mode (9 kHz RBW, 1 Hz VBW). The final highest RF signal levels and frequencies were record. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 Page 58 FCC ID: NS904P11 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 8.3. EQUIVALENT ISOTROPIC RADIATED POWER (EIRP)

The following shall be applied to the combination(s) of the radio device and its intended antenna(e).

I f the RF level is user adjustable, all measurements shall be made with the highest power level available to the user for that combination.

The following method of measurement shall apply to both conducted and radiated measurements.

The radiated measurements are performed at the Ultratech Calibrated Open Field Test Site.

The measurement shall be performed using normal operation of the equipment with modulation. Test procedure shall be as follows:

Step 1: Duty Cycle measurements

Using a spectrum analyzer with the frequency span set to 0 Hz and the sweep time set at a suitable value to capture the envelope peaks and the duty cycle of the transmitter output signal;

The duty cycle of the transmitter, x = Tx on / (Tx on + Tx off) with 0<x<1, is measure and recorded in the test report. For the purpose of testing, the equipment shall be operated with a duty cycle that is equal or more than 0.1. Step 2: Calculation of Peak and Average EIRP

The peak output power of the transmitter shall be determined using a wideband, calibrated RF Peak Power Meter with the power sensor with an integration period that exceeds the repetition period of the transmitter by a factor 5 or more. The observed value shall be recorded as P (in dBm);

The Average EIRP shall be calculated from the above measured power output A, the observed duty cycle x, and the applicable antenna assembly gain G in dBi, according to the formula:

Figure 1 Peak EIRP = P + G Average EIRP = Peak EIRP + 10log(1/x) ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Step 3: Substitution Method. See Figure 2

(a) The measurements was performed in the absence of modulation (un-modulated)

(b) Test was performed at listed 3m open area test site (listed with FCC, IC, ITI, NVLAP, ACA & VCCI).

(c) The transmitter under test was placed at the specified height on a non-conducting turntable (80 cm Page 59 FCC ID: NS904P11 height)

(d) The dipole test antenna was used and tuned to the transmitter carrier frequency.

(e) The spectrum analyzer was tuned to transmitter carrier frequency. The test antenna was lowered or raised from 1 to 4 meters until the maximum signal level was detected.

(f) The transmitter was rotated through 360o about a vertical axis until a higher maximum signal was

(g) The test antenna was lowered or raised again from 1 to 4 meters until a maximum was obtained. This received. level was recorded.

(h) The substitution dipole antenna and the signal generator replaced the transmitter and antenna under test in the same position, and the substitution dipole antenna was placed in vertical polarization. The test dipole antenna was lowered or raised as necessary to ensure that the maximum signal is stilled received.

(i) The input signal to the substitution antenna was adjusted in level until an equal or a known related level to that detected from the transmitter was obtained in the test receiver. The maximum carrier radiated power is equal to the power supply by the generator.

(j) The substitution antenna gain and cable loss were added to the signal generator level for the corrected

(k) Repeat steps (c) to (j) with the substitution antenna oriented in horizontal polarization.

(l) Actual gain of the EUTs antenna is the difference of the measured ERP and measured RF power at the ERP level. RF port. Correct the antenna gain if necessary. Figure 2 ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 Page 60 FCC ID: NS904P11 Figure 3 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Use the following spectrum analyzer settings:

Span = approximately 5 times the 20 dB BW, centered on a hopping channel RBW > 20 dB BW of the emission measured VBW = RBW Trace = max hold Allow the trace to stabilize Use the marker-to-marker function to set the marker to the peak of the emission. The indicated level is the peak output power (with the addition of the external attenuation and cable loss). The limit is specified in one of the subparagraph of this Section. Submit this plot. A peak responding power meter may be used instead of a spectrum analyzer. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 Page 61 FCC ID: NS904P11 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 8.4. SPURIOUS EMISSIONS (CONDUCTED & RADIATED) For both conducted and radiated measurements, the spurious emissions were scanned from the lowest frequency generated by the EUT or 10 MHz whichever is lower to 10th harmonic of the highest frequency generated by the EUT. 8.4.1. Band-Edge and Spurious Emissions (Conducted) Band-Edge Compliance of RF Conducted Emissions:

Use the following spectrum analyzer settings:

The radio was connected to the measuring equipment via a suitable attenuator. Span = wide enough to capture the peak level of the emission operating on the channel closest to the band-

edge, as well as any modulation products which fall outside of the authorized band of operation. RBW = 1 % of the span VBW = RBW Sweep = auto Detector function = peak Trace = max hold Allow the trace to stabilize Set the marker on the emission at the band-edge, or on the highest modulation product outside of the band, if this level is greater than that at the band-edge Enable the marker-delta function, then use the marker-to-peak function to move the marker to the peak of the in-band emission. The marker-delta value now displayed must comply with the limit specified Now, using the same instrument settings, enable the hopping function of the EUT Allow the trace to stabilize Follow the same procedure listed above to determine if any spurious emissions cause by the hopping function also comply with the specify limits. Submit this plot Spurious RF Conducted Emissions:

Use the following spectrum analyzer settings:

The radio was connected to the measuring equipment via a suitable attenuator. Span = wide enough to capture the peak level of the in-band-emission and all spurious emissions (e.g. harmonics) from the lowest frequency generated in the EUT up through the 10th harmonic. Typically, sevral plots are required to cover this entire span. RBW = 100 kHz VBW = RBW Sweep = auto Detector function = peak Trace = max hold Allow the trace to stabilize Set the marker on the any spurious emission recorded. The level displayed must comply with the limit specified in this Section. Submit this plot ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 8.4.2. Spurious Emissions (Radiated) The radiated emission measurements were performed at the UltraTechs 3 Meter Open Field Test Site Page 62 FCC ID: NS904P11

(OFTS) situated in the Town of Oakville, province of Ontario. The Attenuation Characteristics of OFTS have been filed to FCC, Industry Canada, ACA/Austel, NVLap and ITI. Radiated emissions measurements were made using the following test instruments:

1. Calibrated EMCO BiconiLog antenna in the frequency range from 30 MHz to 2000 MHz. 2. Calibrated Emco Horn antennas in the frequency range above 1000 MHz (1GHz - 40 GHz). 3. The test is required for any spurious emission or modulation product that falls in a Restricted Band, as defined in Section 15.205. It must be performed with the highest gain of each type of antenna proposed for use with the EUT. Use the following spectrum analyzer settings:

RBW = 100 kHz for f < 1GHz and RBW = 1 MHz for f > 1 GHz

VBW = RBW

Sweep = auto

Detector function = peak

Trace = max hold

Follows the guidelines in ANSI C63.4-1992 with respect to maximizing the emission by rotating the EUT, measuring the emission while the EUT is situated in three orthogonal planes (if appropriate), adjusting the measurement antenna height and polarization, etc.. A pre-amp and highpass filter are required for this test, in order to provide the measuring system with sufficient sensitivity.

Allow the trace to stabilize.

The peak reading of the emission, after being corrected by the antenna correction factor, cable loss, pre-amp gain, etc. is the peak field strength which comply with the limit specified in Section 15.35(b) Calculation of Field Strength:

The field strength is calculated by adding the calibrated antenna factor and cable factor, and subtracting the Amplifier gain (if any) from the measured reading. The basic equation with a sample calculation is as follows:

FS = RA + AF + CF - AG Where FS RA AF CF AG

=

=

=

=

=

Field Strength Receiver/Analyzer Reading Antenna Factor Cable Attenuation Factor Amplifier Gain Example:

If a receiver reading of 60.0 dBV is obtained, the antenna factor of 7.0 dB/m and cable factor of 1.0 dB are added, and the amplifier gain of 30 dB is subtracted. The actual field strength will be:

Field Level = 60 + 7.0 + 1.0 - 30 = 38.0 dBV/m. Field Level = 10(38/20) = 79.43 V/m. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A Page 63 FCC ID: NS904P11

Submit this test data

Now set the VBW to 10Hz, while maintaining all of the other instrument settings. This peak level, once corrected, must comply with the limit specified in Section 15.209. If the dwell time per channel of the hopping signal is less than 100ms, then the reading obtained may be further adjusted by a duty cycle correction factor, derived from 10log(dwell time/100mS) in an effort to demonstrate compliance with the 15.209.

Submit test data Maximizing The Radiated Emissions:

The frequencies of emissions was first detected. Then the amplitude of the emissions was measured at the specified measurement distance using required antenna height, polarization, and detector characteristics. During this process, cables and peripheral devices were manipulated within the range of likely configuration. For each mode of operation required to be tested, the frequency spectrum was monitored. Variations in antenna heights (from 1 meter to 4 meters above the ground plane), antenna polarization (horizontal plane and vertical plane), cable placement and peripheral placement were explored to produce the highest amplitude signal relative to the limit. The maximum radiated emission for a given mode of operation was found by using the following step-by-step procedure:

Step 1: Monitor the frequency range of interest at a fixed antenna height and EUT azimuth. Step 2: Manipulate the system cables to produce highest amplitude signal relative to the limit. Note the amplitude and frequency of the suspect signal. Step 3: Rotate the EUT 360 degrees to maximize the suspected highest amplitude signal. If the signal or another at a different frequency is observed to exceed the previously noted highest amplitude signal by 1 dB or more, go back to the azimuth and repeat Step 2. Otherwise, orient the EUT azimuth to repeat the highest amplitude observation and proceed. Step 4: Move the antenna over its full allowable range of travel (1 to 4 meters) to maximize the suspected highest amplitude signal. If the signal or another at a different frequency is observed to exceed the previously noted highest amplitude signal by 1 dB or more, return to Step 2 with the highest amplitude observation and proceed. Step 5: Change the polarization of the antenna and repeat Step 2 through 4. Compare the resulting suspected highest amplitude signal with that found for the other polarization. Select and note the higher of the two signals. This signal is termed the highest observed signal with respect to the limit for this EUT operational mode. Step 6: The effects of various modes of operation is examined. This is done by varying the equipment modes as steps 2 through 5 are being performed. Step 7: After completing steps 1 through 6, record the final highest emission level, frequency, antenna polarization and detector mode of the measuring instrument. ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004 Page 64 FCC ID: NS904P11 FCC Part 15, Subpart C, Section 15.247 - FHSS 900 MHz OEM Frequency Hopping Module, Model MHX910A 8.5. ALTERNATIVE TEST PROCEDURES If the antenna conducted tests cannot be performed on this device, radiated tests show compliance with the peak output power limit specified in Section 15.247(b) and the spurious RF conducted emission limit specified in Section 15.247(c) are acceptable. As stated previously, a pre-amp, and, in the later case, a high pass filter, are required for the following measurements:

8.5.1. Peak Power Measurements Calculate the transmitters peak power using the following equation:

E = 30PG/d P = (Ed)2/30G Where:

E: measured maximum fundamental field strength in V/m. Utilizing a RBW, the 20 dB bandwidth of the emission VBW >RBW, peak detector function. Follow the procedures in C63.4-1992 with respect to maximizing the emission

G is numeric gain of the transmitting antenna with reference to an isotropic radiator

D is the distance in meters from which the field strength was measured

P is the distance in meters from which the field strength was measured 8.5.2. Spurious RF conducted emissions The demonstrate compliance with the spurious RF conducted emission requirement of Section 15.2479(c), use the following spectrum analyzer settings:

Span = wide enough to fully capture the emission being measured

RBW = 100 kHz

Sweep = auto

Detector function = peak

Trace = max hold

Measure the field strength of both the fundamental and all spurious emissions with these settings.

Follow the procedures C63.4 with respect to maximizing the emissions. The measured field strength of all spurious emissions must be below the measured field strength of the fundamental emission by the amount specified in Section 15.247. Note that if the emission falls in a Restricted Band, as defined in Section 15.205, the procedure for measuring spurious radiated emissions listed above must be followed ULTRATECH GROUP OF LABS 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vic@ultratech-labs.com, Website: http://www.ultratech-labs.com All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) File #: MCRS-006F15C247 April 19, 2004

#17, 2135 - 32nd Avenue N.E. Calgary, Alberta T2E 6Z3 Tel: (403) 248-0028 Fax: (403) 248-2762 Website: http://www.microhardcorp.com March 1, 2004 FEDERAL COMMUNICATIONS COMMISSION 7435 Oakland Mills Road Columbia, MD 21046 U.S.A. Subject: Request for withholding from public disclosure the schematic diagrams and system block diagrams, parts lists and operational description pursuant to an application for certification. Dear Sir/Madam, We, Microhard Systems Inc., would like to request that the schematic diagrams, system block diagrams, parts list and operational description, submitted with the application for certification be withheld from public disclosure as per Section 0.459 of FCC Rules. This request is made under the provisions of Section 0.457(d) of the Commission's Rules, and Section 552(b)(4) of the Freedom of Information Act. These sections authorize as a withholding from public inspection materials which would be privileged as a matter of law if retained by the person submitting them, and materials which would not customarily be released to the public by that person. If you have any queries, please do not hesitate to contact us:

Microhard Systems Inc. 900MHz OEM Frequency Hopping Module MHX910A NS904P11 Applicant:

Product:

Model:

FCC ID:

Tel: (403) 248-0028 Fax: (403) 248-2762 Yours truly, Hany Shenouda Director of Engineering Microhard Systems Inc.

ANNEX 1 - TEST SETUP PHOTOS AC Power Line Conducted Emissions Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 1 ANNEX 1 - TEST SETUP PHOTOS AC Power Line Conducted Emissions Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 2 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Quarter Wave Antenna, 1.5 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 3 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Quarter Wave Antenna, 1.5 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 4 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Rubber Ducky Antenna, 2 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 5 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Rubber Ducky Antenna, 2 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 6 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Transit Antenna, 5.15 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 7 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Transit Antenna, 5.15 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 8 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Yagi Antenna, 14.15 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 9 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Yagi Antenna, 14.15 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 10 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Omni Directional Antenna, 8.15 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 11 ANNEX 1 - TEST SETUP PHOTOS Radiated Emissions @ 3 Meters EUT with Omni Directional Antenna, 8.15 dBi Gain Microhard Systems Inc. 900 MHz OEM Frequency Hopping Module, Model MHX910A FCC ID: NS904P11 IC: 3143A-04P11 A1 - 12