FCC ID: SY4-A02029 Geodetic GNSS Receiver

1) FCC 15.19 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. 2FCC 15.21 Warning: Changes or modifications to this unit not expressly approved by the part responsible for compliance could void the users authority to operate the equipment. 3) FCC 15.105 For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual:

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 4FCC RF Exposure- portable This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

CHC P5 GNSS Reference Receiver User Guide Revision 1.0 03/16/2021 1 Table of Contents Table of Contents Table of Contents .................................................................................................. 2 Safety Information ................................................................................................ 4 Regulations and Safety .......................................................................................... 4 Type Approval ........................................................................................................ 4 Exposure to Radio Frequency Radiation ................................................................ 4 Battery Safety......................................................................................................... 5 DC Power Supply Safety ......................................................................................... 6 Wet Location Safety ............................................................................................... 6 1 Introduction ....................................................................................................... 7 1.1 About the Receiver .......................................................................................... 7 1.2 Technical Support ............................................................................................ 7 1.3 Disclaimer ......................................................................................................... 8 1.4 The Users Comments ...................................................................................... 8 2 Overview ........................................................................................................... 9 2.1 Receiver Framework ........................................................................................ 9 2.1.1 The Network Appliance Concept ........................................................ 10 2.2 Receiver Services ........................................................................................... 10 2.3 Receiver Features ........................................................................................... 11 2.4 Use and Care .................................................................................................. 12 2.5 Electronic Interface ........................................................................................ 12 2.6 Keypad and Display ........................................................................................ 13 2.7 Rear Connectors ............................................................................................. 14 3 Batteries and Power .......................................................................................... 15 3.1 External Power ............................................................................................... 15 3.2 Battery Safety ................................................................................................. 16 3.3 Battery Performance ...................................................................................... 16 3.4 Charging the Battery ...................................................................................... 17 3.5 Storing the Battery ......................................................................................... 17 3.6 Removing the Battery .................................................................................... 18 4 Setting Up the Receiver ..................................................................................... 19 4.1 Guidelines ...................................................................................................... 19 4.1.1 Environmental Conditions .................................................................. 19 4.1.2 Sources of Electrical Interference ....................................................... 19 4.1.3 Uninterruptible Power Supply ............................................................ 20 4.1.4 Lighting and Surge Protection ............................................................. 20 4.1.5 Placing the Antenna ............................................................................ 20 4.2 System installation ......................................................................................... 21 4.2.1 Supported Antenna ............................................................................. 21 4.2.2 System Installation Diagram ............................................................... 22 2 Table of Contents 5 Configuring the Receiver: Keypad, Indicator LEDs, and Display ........................... 25 5.1 Button Functions ............................................................................................ 25 5.2 Indicator LEDs ................................................................................................ 26 5.3 Home Screen .................................................................................................. 26 5.4 Status Screens ................................................................................................ 27 5.5 Setting Up the Receiver as Part of An Ethernet Configuration...................... 28 6 Configuring the Receiver: Other Than Keypad and Display ................................. 29 6.1 Configuring the Ethernet Settings ................................................................. 29 6.2 Configuring through A Web Browser ............................................................. 30 6.2.1 Changing the Settings ......................................................................... 31 6.2.1.1 Status Menu ....................................................................... 31 6.2.1.2 Satellites Menu .................................................................. 33 6.2.1.3 Receiver Configuration Menu ............................................ 36 6.2.1.4 Data Recording Menu ........................................................ 41 6.2.1.5 I/O Settings Menu .............................................................. 47 6.2.1.6 Network Set Menu ............................................................. 53 Network Security Menu ..................................................... 55 6.2.1.7 6.2.1.8 Module Setting Menu ........................................................ 57 Firmware Menu ................................................................. 59 6.2.1.9 7 Default Setting and Configuration Files .............................................................. 63 7.1.1 Default Receiver Settings .................................................................... 63 7.1.2 Resetting the Receiver to Factory Defaults ........................................ 64 7.1.3 Using Configuration Files to Duplicate Receiver Settings ................... 64 8 Specifications .................................................................................................... 66 8.1 GNSS Characteristics ...................................................................................... 66 8.2 Communication .............................................................................................. 67 8.3 Physical ........................................................................................................... 68 8.4 Electrical ......................................................................................................... 68 8.5 General ........................................................................................................... 69 8.6 Data storage ................................................................................................... 69 A. Upgrading the Receiver Firmware .................................................................... 70 A.I. Upgrading the Receiver Firmware ................................................................. 70 A.I.i. Upgrading through the USB Port ......................................................... 70 A.I.ii. Upgrading through A Browser ............................................................ 70 B. Troubleshooting ............................................................................................... 71 B.I. Receiver Issues ............................................................................................... 71 C. Communication Ports Definition ...................................................................... 73 C.I. CHC P5 Receiver COM (10-PIN LEMO Port) Definition .................................. 73 C.II. CHC P5 Receiver DB9 Male Connector Definition ........................................ 74 D. Glossary .......................................................................................................... 75 3 Safety Information Safety Information Before the user uses the users CHC P5 GNSS reference receiver, make sure that the user has read and understood all safety requirements. Regulations and Safety The receiver contains an internal wireless modem for communicating signals through Bluetooth wireless technology or through an external data communications radio. Regulations regarding the use of the wireless modem vary greatly from country to country. In some countries, the unit can be used without obtaining an end-user license. Other countries require end-user licensing. For licensing information, consult the users local CHC dealer. Before operating a P5 GNSS reference receiver, determine if authorization or a license to operate the unit is required in the users country. It is the responsibility of the end-user to obtain an operator's permit or license for the receiver for the location or country of use. Type Approval interference. Type approval Type approval, or acceptance, covers technical parameters of the equipment related to emissions that can cause is granted to the manufacturer of the transmission equipment, independent from the operation or licensing of the units. Some countries have unique technical requirements for operation radio modem frequency bands. To comply with those requirements, CHC may have modified the users equipment to be granted Type approval. Unauthorized modification of the units voids the Type approval, the warranty, and the operational license of the equipment. Exposure to Radio Frequency Radiation Safety. Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC-regulated equipment. Proper use of this radio modem results following precautions are in an exposure below government recommended:

limits. The 4 Safety Information antenna.

(1) Do not operate the transmitter when someone is 20 cm (7.8 inches) of the

(2) Do not operate the transmitter unless all RF connectors are secured, and any open connectors are correctly terminated.

(3) Do not operate the equipment near electrical blasting caps or in an explosive atmosphere.

(4) All equipment must be correctly grounded for safe operation.

(5) All equipment should be serviced only by a qualified technician. Battery Safety WARNING Do not damage the rechargeable Lithium-ion battery. A damaged battery can cause an explosion or fire and can result in personal injury and/or property damage. To prevent injury or damage:

(1) Do not use or charge the battery if it appears to be damaged. Signs of damage include, but are not limited to, discoloration, warping, and leaking battery fluid.

(2) Do not expose the battery to fire, high temperature, or direct sunlight.

(3) Do not immerse the battery in water.

(4) Do not use or store the battery inside a vehicle during hot weather.

(5) Do not drop or puncture the battery.

(6) Do not open the battery or short-circuit its contacts. WARNING Avoid contact with the rechargeable Lithium-ion battery if it appears to be leaking. Battery fluid is corrosive, and contact with it can result in personal injury and/or property damage. To prevent injury or damage:

(1) If the battery leaks, avoid contact with the battery fluid.

(2) If battery fluid gets into the users eyes, immediately rinse the users eyes with clean water and seek medical attention. Do not rub the users eyes!

(3) If battery fluid gets into the users skin or clothing, immediately use clean water to wash off the battery fluid. 5 Safety Information WARNING Charge and use the rechargeable Lithium-ion battery only in strict accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire and can result in personal injury and/or equipment damage. To prevent injury or damage:

(1) Do not charge or use the battery if it appears to be damaged or leaking.

(2) Charge the Lithium-ion battery only in a CHC product that is specified to charge it.

(3) Discontinue charging a battery that gives off extreme heat or a burning odor.

(4) Use the battery only in CHC equipment that is specified to use it.

(5) Use the battery only for its intended use and according to the instructions in the product documentation. DC Power Supply Safety WARNING When DC voltage is applied to this receiver through COM port(LEMO connectors), the DC voltage must be limited to no more than 36 V DC

+0% under both normal and single fault conditions. If the recommended input voltage is exceeded, the receiver may present an electrical hazard. Wet Location Safety WARNING This receiver is not intended to be used in a wet location, or a location that may become wet when it is powered by the external DC power supply. Use the receiver in a wet location only when operating it on its own internal battery. WARNING The external power adapter and its associated power cord and plug are not intended to be installed outdoors or in a wet location. WARNING Do not power the receiver through external power when operating in a wet environment or an environment that may become wet. The power input connections must be sheltered. 6 1 Introduction The P5 GNSS Reference Receiver User Guide describes how to set up and use the CHC P5 GNSS reference receiver. In this manual, the receiver refers to the P5 GNSS reference receiver unless otherwise stated. Even if the user has used other Global Navigation Satellite Systems (GNSS) products before, CHC recommends that the user spend some time reading this manual to learn about the special features of this product. If the user is not familiar with GNSS, go to www.chcnav.com for an interactive look at CHC and GNSS. 1.1 About the Receiver The P5 GNSS reference receiver (the receiver) is a multiple-frequency GNSS receiver. It can track all GPS (L1/L2/L5), GLONASS (L1/L2), BDS (B1/B2/B3/B1c/B2a), GALILEO(E1/E5a/E5b), QZSS(L1/L5) and SBAS (L1). The user can use the front panel of the receiver or an office computer to configure the receiver, access files, and publish data files to a company Intranet or to the Internet. The receiver makes it easy for the user to set up a powerful, flexible, and reliable reference station for continuous operation. The receiver serves in all common geodetic reference receiver roles. It can be the main component in a Continuously Operating Reference Station (CORS), streaming data to CHC GNSS Infrastructure software. It can also work well as a campaign receiver prior to permanent deployment. The receiver makes an excellent portable RTK base station with its internal battery. It also has specialized capabilities that make it an excellent reference receiver for scientific applications. 1.2 Technical Support If the user has a problem and cannot find the information the user needs in the product documentation or CHC website (www.chcnav.com), contact the users local CHC dealer from which the user purchased the receiver(s). If the user needs to contact CHC technical support, please contact us by email

(support@chcnav.com) or Skype (chc_support). 7 1.3 Disclaimer Before using the receiver, please make sure that the user has read and understood this User Guide, as well as the safety requirements. CHC holds no responsibility for the wrong operation by users and for the incurred by the wrong understanding about this User Guide. However, CHC reserves the rights to update and optimize the contents of this guide regularly. Please contact the users local CHC dealer for new information. losses 1.4 The Users Comments The users feedback about this user guide will help us to improve it in a future revision. Please email the users comments to support@chcnav.com. 8 2 Overview This chapter introduces the P5 GNSS reference receiver (the receiver). This receiver makes it easy to set up a powerful and reliable Continuously Operating Reference Station (CORS) or to collect data from temporary field locations. The receiver is ideal for the following infrastructure applications:

(1) As part of a GNSS Infrastructure network in conjunction with CHC Reference Station Network (CPS) software.

(2) As part of a permanent reference station with or without supporting software.

(3) A temporary field base station to broadcast RTK corrections and collect observations for post-processing. 2.1 Receiver Framework The receiver integrates the multi-frequency GNSS technology into specialized processing and communications framework. The receiver can operate as a standalone reference station, or it can be integrated into a scalable network. With an Internet Protocol (IP) as the primary communications method, the user can use public domain tools, such as a web browser and FTP client, to configure the receiver and access logged data files. Notes: All references to the Internet refer to either a Wide Area Network (WAN) or a Local Area Network (LAN) connection. The receiver adopts a secured system that requires a password protected login for configuration changes and/or file access. Use the network management features to create a base/rover configuration with a variety of operating modes. The user can then enable those modes as necessary instead of switching the global state of the receiver from one mode to another. For example, the user can configure various streaming services with different configurations (such as any combination of the data stream, sample interval) on different TCP or UDP ports. To activate one or more modes, open the connection to the specific port. This allows multiple clients to access any given streaming service. These features and many more, shift the model of a GNSS receiver toward the concept of a "network appliance". 9 2.1.1 The Network Appliance Concept Traditionally, a GNSS receiver has one operator. That person is the only user of the receiver, so they can change settings without affecting other users. With the P5 GNSS reference receiver, an operator can configure a receiver once, and then make it available as a network appliance for general use by one or more users

(or clients). This network appliance concept lets the user set up the receiver to provide one or more services that one or more users can access through a Local Area Network (LAN) or a Wide Area Network (WAN), such as the Internet. Once the receiver is set up, the user needs to make only minimal changes, if any, to the receiver configuration. When the receiver is operating as a network appliance, it provides services to all users attached to the receiver through the network. Different streaming services may be configured on different ports, for example, with different data rates or data combination. To obtain service, the client has only to connect to a specific port. In this way, most users do not need to control the receiver. Changing global settings, such as masks, will affect all users of all services. The receiver provides the following standard configuration and data logging services:

Use To perform... HTTP FTP All manual and automated configuration operations to manage the logged data file space. Remote manual and/or automated operations to manage the logged data file upload path. 2.2 Receiver Services The receiver can provide one or more streaming or query services over an RS-232 serial port or a TCP/IP port: Streaming service. Anyone with authorized access can obtain streamed information, such as GNSS measurements or RTCM corrections, without having to control or issue commands to the receiver. The client simply connects to the port that is streaming the required information. 10

(1) 624-channels with all in view simultaneously tracked satellite signals:

2.3 Receiver Features a) GPS: L1, L2, L5 b) GLONASS: L1, L2 c) Galileo: E1, E5A, E5B d) SBAS:L1 e) BDS: B1, B2, B3, B1c, B2a f) QZSS:L1, L5

(2) 32 GB internal data logging storage

(3) External USB drive support

(4) The internal battery provides up to 24 hours operation

(5) Integrated display and keypad for system configuration without a controller

(6) Integrated Bluetooth wireless technology for cable-free data transmission

(7) Permanent/semi-permanent and mobile quick setup base station capability

(8) The easy-to-use Web-interface menu system for rapid configuration and status checking

(9) Rugged, weatherproof construction with an IP67 environmental rating

(10) -40C to +65C (-40F to +149F) operating temperature range

(11) 12 V to 36 V DC input power range

(12) Data file generated in HCN

(13) Eight independent data logging sessions with configurable memory pooling

(14) Circulating data logging method

(15) FTP push to allow uploading of logged data files to remote sites

(16) Ethernet configuration through the front panel

(17) Multiple languages available through the Web interface

(18) NTRIP (Networked Transport of RTCM via Internet Protocol) client/server/caster support 11 2.4 Use and Care This receiver can withstand the rough treatment and tough environment that typically occurs in CORS installation. However, it is a high-precision electronic instrument and should be treated with reasonable care. CAUTION Operating or storing the receiver outside the specified temperature range can damage it. For more information, see Chapter 8 Specifications. 2.5 Electronic Interface High-power signals from a nearby radio or radar transmitter can overwhelm the receiver circuits. This does not harm the instrument, but it can prevent the receiver electronics from functioning correctly. Avoid locating the receiver or antenna within 400 meters of powerful radar, television, or other transmitters or GNSS antennas. Low-power transmitters, such as those in cell phones and two-way radios, normally do not interfere with receiver operations. 12 2.6 Keypad and Display 1 2 3 5 4 Description Shows the working status. See 5.2. Indicator LEDs Buttons Use to turn on, turn off or configure the receiver. See 5.1. Button functions. This LCD enables the user to view the current configuration settings of the receiver and the operation by operators. See 5.3. Home screen. Support DEVICE/HOST. Insert 4G card to support mobile network Feature Indicator LEDs Display Mini USB port 4G card slot Feature Indicator LEDs Buttons Display Mini USB port 4G card slot 13 1 2 3 4 5 6 7 2.7 Rear Connectors 1 2 3 4 5 6 7 No. Connector type Description TNC DB9 TNC TNC RJ45 jack LEMO (10-pin) Port 2 TNC Connect to the GNSS antenna. RS-232 serial port, 9-pin male connector. Connect the 4G antenna to enhance the 4G signal. Connect to the atomic clock for time calibration. Supports links to 10BaseT/100BaseT auto-negotiate networks HTTP, TCP/IP, UDP, FTP, NTRIP Caster, NTRIP Server, NTRIP Client Simultaneously transmits multiple data stream Power from an external AC/DC power supply. RS-232 serial communications using a 10-pin LEMO cable

(CHC Data Cable). Data streaming transmission port. Connect to peripheral device for time calibration 14 3 Batteries and Power The P5 GNSS reference receiver uses an internal rechargeable Lithium-ion battery, which can be replaced only at an Authorized CHC Service Center. The receiver can also be powered by an external power source that is connected to the LEMO ports. The operational time provided by the internal battery depends on the type of measurement and operating conditions. Typically, the internal battery provides up to 24 hours operation. Notes: All operational battery tests are carried out with new, fully-charged batteries at room temperature, tracking both GPS and GLONASS satellites while storing and streaming data at 1 Hz. Older batteries, at temperatures significantly higher or lower than room temperature, will have reduced performance. Power consumption increases with an increasing number of actively tracked satellites and with increasing observation and storage rates. 3.1 External Power The receiver uses an external power source in preference to its internal battery. If the receiver is not connected to an external power source, or if the external power supply fails, the internal battery is used. CHC recommends that the applied external power offers between 12 V DC and 36 V DC and can supply at least 6.5 W of power for the long-term installations and ensure that the internal battery is charged and ready to compensate for power supply disruptions. While carrying out static measurements for post-processed computations using the internal memory, if no external power is supplied and the internal battery is drained, the receiver shuts down. No data is lost; however, when power is restored, the receiver should be configured again. WARNING The external AC power adapter and its associated power cord and plug are not intended to be installed outdoors, nor in a wet location. Do not power the receiver through external power when operating in a wet environment or an environment that may become wet. The power input connections must be sheltered. 15 WARNING When the user applies DC voltage to this product through the LEMO connector, the DC voltage must be limited to 36V DC +0% under both normal and single fault conditions. This product may present an electrical hazard if the recommended input voltage is exceeded. 3.2 Battery Safety The receiver is powered by a rechargeable internal Lithium-ion battery. Charge and use the battery only in strict accordance with the following instructions. WARNING Do not damage the rechargeable Lithium-ion battery. A damaged battery can cause an explosion or fire and can result in personal injury and/or property damage. To prevent injury or damage:

(1) Do not use or charge the battery if it appears to be damaged. Signs of damage include, but are not limited to, discoloration, warping, and leaking battery fluid.

(2) Do not expose the battery to fire, high temperature, or direct sunlight.

(3) Do not immerse the battery in water.

(4) Do not use or store the battery inside a vehicle during hot weather.

(5) Do not drop or puncture the battery.

(6) Do not open the battery or short-circuit its contacts. WARNING Avoid contact with the rechargeable Lithium-ion battery if it appears to be leaking. Battery fluid is corrosive, and contact with it can result in personal injury and/or property damage. To prevent injury or damage:

(1) If the battery leaks, avoid contact with the battery fluid.

(2) If battery fluid gets into the users eyes, immediately rinse the users eyes with clean water and seek medical attention. Do not rub the users eyes!

(3) If battery fluid gets into the users skin or clothing, immediately use clean water to wash off the battery fluid. 3.3 Battery Performance To optimize battery performance and extend battery life:

(1) Fully charge all new batteries before use. 16

(2) Do not use at extreme temperatures. The receiver is designed to operate at

-40 C to +65 C (-40 F to +149 F). However, operation at temperatures of less than 0 C (32 F) can cause a rapid drop in battery life. 3.4 Charging the Battery The rechargeable Lithium-ion battery is supplied partially charged. Charge the battery completely before using it for the first time. If the battery has been stored for longer than three months, charge it before use. When connected to a suitable power source, the internal battery charges fully in 10 hours. WARNING Charge and use the rechargeable Lithium-ion battery only in strict accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire and can result in personal injury and/or equipment damage. To prevent injury or damage:

(1) Do not charge or use the battery if it appears to be damaged or leaking.

(2) Charge the Lithium-ion battery only within the P5 receiver. The battery can only be removed by an authorized CHC Service Center. 3.5 Storing the Battery The internal Lithium-ion battery adopts a self-protection mechanism that protects the battery from discharge when its voltage is below 6 V and shuts down the receiver. The internal battery will be activated when charged by the external power supply. Do not store the receiver at temperatures outside the range -40C to +85 C ( 40F to 176F). The receiver is supplied with a mains power supply unit that recharges the battery inside the receiver when it is connected through the adaptor to either of the LEMO ports. When the user uses the receiver in a long-term installation, CHC recommends that the user use this power supply or another that provides at least 12 V DC at all times to keep the internal battery charged. This will ensure that the internal battery provides an uninterrupted power supply that will keep the receiver operational for up to 24 hours after a power failure. 17 3.6 Removing the Battery The internal Lithium-ion battery may be removed only at an authorized CHC Service Center. If the battery is removed at an unauthorized service center, the remaining warranty on the product will be void. 18 4 Setting Up the Receiver This chapter describes best practices for setting up the equipment and outlines the precautions that the user must take to protect the equipment. It also describes the typical installation diagram of reference station composed of P5 GNSS receiver, GNSS antenna, external power and network cable. The antenna installation guidelines described here are the minimum standards. When installing a geodetic antenna to gather precise observation data, always follow recommended CORS installation practices to the greatest extent possible. 4.1 Guidelines When the user set up the receiver, follow these guidelines. 4.1.1 Environmental Conditions The receiver has a waterproof housing, but the user must take reasonable care to keep the unit dry. To improve the performance and long-term reliability of the receiver, do not expose the receiver to extreme environmental conditions, such as:

4.1.2 Sources of Electrical Interference Do not place the GNSS antenna near the following sources of electrical and magnetic noise:

Water Heat greater than 65 C (149 F) Cold less than -40 C (-40 F) Corrosive fluids and gases Gasoline engines (spark plugs) Televisions and computer monitors Alternators and generators Electric motors Equipment with DC-to-AC converters Fluorescent lights Switching power supplies Arc welding equipment 19 4.1.3 Uninterruptible Power Supply CHC recommends that the user use an uninterruptible power supply (UPS) to power the receiver. The internal battery can also operate as a UPS for up to 24 hours. A UPS protects the equipment from power surges and spikes and keeps the receiver running during short power outages. For more information, contact the users local CHC dealer. 4.1.4 Lighting and Surge Protection CHC recommends that the user install lightning protection equipment at permanent sites. All connections to the receiver should have surge protection. Typically, the minimum protection should include a surge protector in the antenna feed line, on the receiver's power supply system. If serial devices are attached to the receiver, those serial connections should also be provided with surge protection. Also, protect any communications and power lines at building entry points. If the user uses other antennas, such as a radio modem that distributes real-time correction messages, install surge protection on those antenna feeds as well. No surge protection devices can offer protection unless they are connected to an excellent ground using very low impedance conductors. Equipment damage caused by electrical surges occurs in many permanent installations even though surge protection is in place. Commonly, this is because the grounding system used was designed to protect against AC electrical hazards rather than to dissipate the sudden, high current surges caused by lightning. Please consult with a lightning protection expert or research the topic when planning permanent installations. For more information, contact the users local CHC dealer. 4.1.5 Placing the Antenna The antenna location will have a significant effect on the quality of the users P5 receiver's performance. In temporary developments, it may not always be possible to set up in an ideal location with an excellent sky view. However, when installing a permanent station, be sure to plan the antenna location and mounting system carefully. The general requirements for the antenna location and mount are:

Keep the distance from the objects that may cause the multipath effects (such as buildings, trees, reflective surface) for at least 200 m (656 feet) Clear sky above 10 degrees elevation Away from electromagnetism interference region (e.g., Microwave station, radio 20 transmitting station, high voltage wires) at least 200 m (656 feet) Mounted 1.5 m (5 feet) above any nearby signal reflectors. Mount stability that is not influenced by thermal expansion, wind loading, or soil expansion/contraction. For additional information on this topic, research the reference antenna installation guidelines published by the:

US National Geodetic Survey

(http://www.ngs.noaa.gov/PUBS_LIB/CORS_guidelines.pdf) International GNSS Service

(http://igscb.jpl.nasa.gov/network/guidelines/guidelines.html) 4.2 System installation 4.2.1 Supported Antenna The receiver provides a TNC-type female connector for connecting to an antenna. The receiver is intended for use with a CHC Geodetic GNSS antenna or a CHC GNSS Choke Ring antenna. CHC AT312 GNSS Geodetic Antenna CHC C220GR2 GNSS Choke Ring Antenna Other GNSS antennas may, however, be used ensuring that the antenna receives the proper GNSS frequencies and operates at either 3.3V or 7.1V with a signal greater than 40 dB at the antenna port. 21 4.2.2 System Installation Diagram The typical installation diagram of the CHC P5 GNSS receiver connected with CHC A220GR GNSS Geodetic Antenna, external power supply, and network cable. 22 CHC AT312 GNSS Geodetic Antenna GNSS Antenna Cable Network Cable CHC Data Cable Adapter CHC Data Cable.

(1) Install the GNSS antenna at the appropriate location (see 4.1.5. Placing the antenna for the guidelines); connect the antenna to the TNC Plug Socket of P5 via the GNSS Antenna Cable.

(2) Power the P5 by an external power source (e.g., mains supply) with Adapter via a) Connect the 10-pin LEMO of CHC Data Cable of P5. b) Plug the male jack connector Adapter into the female connector of CHC Data Cable. 23 network. c) Connect two leg plugs or three leg plugs of Adapter to the mains supply.

(3) Connect the network cable to the RJ45 jack of P5 to link the P5 with the Notes: Also, the P5 can be powered by external battery via CHC Data Cable. And the power supply voltage should be controlled between 12 to 36 V DC. 24 5 Configuring the Receiver: Keypad, Indicator LEDs, and Display The P5 GNSS reference receiver features a front panel user interface with a keypad, four indicator LEDs, and a two-line alphanumeric display. This interface enables the user to configure many of the receivers features without using an external controller or computer. 5.1 Button Functions Use the buttons on the front panel to turn on or turn off the receiver and to check or change the receiver settings. Button Function Name Power Turn on or turn off the receiver. When the receiver is only powered by internal battery:

To turn on the receiver, press and hold for 3 seconds. To turn off the receiver, press and hold for 2 seconds. When the receiver is powered by external power supply:

The receiver will be on with power. The receiver will be turned off by removing the power supply from the CHC cable. Return to the previous screen or cancel changes the user makes on a screen. Advance to the next screen or accept changes the user make on a screen. Move the cursor between multiple fields on a screen or make changes. Move the cursor between multiple fields on a screen or make changes. Escape OK Up Down Left Move the cursor between characters in an editable Right Move the cursor between characters in an editable field. field. 25 5.2 Indicator LEDs Indicator LEDs Power LED Green/

Red Name Color Descriptions Satellites LED Green Correction LED Yellow/

Yellow-green Network LED Yellow 5.3 Home Screen The Home screen shows:

The indicator to show whether GNSS is on or off. Green: The receiver operates in the absence of a power supply. Yellow-green: the status of charging and normally operating. Red: Not booting and the status of charging. Shows the number of satellites that the receiver has tracked. When the receiver is searching satellites, the green LED flashes once every 5 seconds. When the receiver has tracked N satellites, the green LED will flash N times every 5 seconds. Indicates whether the receiver is transmitting/receiving differential data. The yellow LED flashes once per second when As a Base station: successfully transmitting differential data. As a Rover station: indicates single or float status The green LED flashes once per second when As a Rover station: indicates fix status Indicates whether the receiver connects to the network. Indicates the receiver connects to network When the LED is on, conversely, the receiver does not. 26 As a power-saving feature, the front panel goes dark after a short period of inactivity. If the display is not lit and the receiver is on, press ANY BUTTON to reactivate the To review the receiver's current settings in the status screens, press or on the front panel. The status screens show the following information:

The name of the product. The position solution. The number of satellites being tracked. display. 5.4 Status Screens Current Longitude Current Latitude Current Height Marker name Marker number Net State ETH Mode A current IP address (editable) Current IP mask (editable) Current Gateway (editable) Current DNS Server (editable) Current HTTP port (editable) MAC Address WI-FI AP Set WI-FI-AP Charging State The internal battery power remaining 27 Battery Temperature Internal Temperature Environment Temperature Internal storage memory remaining Receiver hardware version and software version Firmware Version Receiver serial number and part number Resume 5.5 Setting Up the Receiver as Part of An Ethernet Configuration Use the keypad to set up the receiver as part of an Ethernet configuration. Press or to move between different status screens, and then press to enter the edit mode.

(1) Turn on the receiver by pressing the button or connect the receiver to the external power supply.

(2) Press or to move to IP Addr status screen.

(3) Press to edit IP address. to select the character to edit and then press or

(4) Press or to change it. display.

(5) When finished, press

, and then the Setting Success message will appear on

(6) Follow the step 2 to step 5 to edit IP mask, gateway, DNS server and HTTP port in the IP MASK, Gateway, DNS Server and HTTP PORT status screen, respectively. 28 and Display 6 Configuring the Receiver: Other Than Keypad The user can configure the P5 GNSS reference receiver to perform a wide variety of functions. This chapter describes the configuration methods other than the front panel display and explains when and why each method is used. 6.1 Configuring the Ethernet Settings The receiver Ethernet port connects to an Ethernet network, through which the user can access, configure, and monitor the receiver. No serial cable connection to the receiver is necessary. The receiver has the following Ethernet settings:

IP address IP mask Gateway DNS server HTTP port The default setting for the HTTP port is 80: This port is not assigned by the network. HTTP port 80 is the standard port for web servers and enables the user to connect to the receiver by entering only the receivers IP address (check the information from the front panel) in a web browser. For example, using port 80: http://192.168.32.132 If the receiver is set to use a port other than 80, the user must enter the IP address followed by the port number in a web browser. For example, port 9971: http://192.168.32.132:9971 Users can configure the Ethernet settings through the front panel (see 5.4. Setting up the receiver as part of an Ethernet configuration) and a web server. To use a web server, the user must connect the receiver to a network and conduct a valid Ethernet configuration. Notes: The receiver should be configured the Ethernet settings through the front panel for its first connection to the Internet. 29 6.2 Configuring through A Web Browser Recommended browsers:

Google Chrome Microsoft Internet ExplorerR version 10, or higher Apple Safari To connect to the receiver through a web browser:

(1) Enter the IP address of the receiver into the address bar of the web browser:

(2) The web browser prompts the user to enter a username and password:

The default login account for the receiver is:

a) Login Account: admin b) Password: password Notes: Check the [remember me] checkbox, and then the browser will remember the Login Account and Password the user entered for the next time the user enters this login screen.

(3) Once the user logs in, the web page appears as follows:

30 6.2.1 Changing the Settings The web interface shows the configuration menus on the left of the browser window, and the setting on the right. Each configuration menu contains the related submenus to configure the receiver and monitor receiver performance. This section describes each configuration menu. To view the web interface in another language, select the corresponding language name from the drop-down list in the upper right corner of the interface. Currently, three languages are available:

6.2.1.1 Status Menu This menu provides a quick link to review the receiver's position information, satellites tracked, runtime, current data log status, current outputs, available memory, etc. 31

(1) Position This page shows the relevant position information about the receiver's position solution which including the position, DOP values, satellites used and tracked, and the receiver clock information.

(2) Activity Lists several important items to help the user understand how the receiver is being used and its current operating condition. Items include the identities of currently tracked satellites, internal and external storage usage rate. With this information, it is easy to tell which functions the receiver is performing:

(3) Google map Tap this submenu to show the location of the receiver on Google map. 32 6.2.1.2 Satellites Menu Use the Satellites menu to view satellite tracking details and enable/disable GPS, SBAS, GLONASS, BDS and Galileo constellations. These menus include tabular and graphical displays to provide all required information on satellite tracking status.

(1) Tracking Table Provides the status of satellites tracked in general, such as the satellite ID, satellite type, attitude angle, azimuth angle, L1/B1/E1 SNR, L2/B2/E5a SNR, L5/B3/E5b SNR , B1c/E5 SNR, B2a/E6 SNR, B2b SNR and enable/disable status of each one. 33

(2) Tracking Graph The following figure is an example of satellite track diagram page. Users can determine the satellite types and the corresponding SNR to be displayed in any combination.

(3) Tracking SkyPlot The following figure is an example of Skyplot page. 34

(4) Tracking Activation In this submenu, users can enable/disable GPS, SBAS, GLONASS, BDS and Galileo constellations.

(5) Tracking enable In this submenu, users can enable/disable the signals of each constellation. Please click [Confirm] button after the users finish the collection. 35 6.2.1.3 Receiver Configuration Menu Use this menu to configure settings such as the antenna type and height, elevation mask and PDOP setting, the reference station coordinates, receiver resetting and web interface language:

(1) Summary This submenu shows the receiver information and reference station information, including antenna related information, elevation mask angle, reference station work-mode and position, etc. 36

(2) Antenna configuration Use this screen to configure all the items relating to the GNSS antenna. The user must enter the correct values for all antenna-related fields, as the choices the user makes significantly affect the accuracy of logged data and broadcast RTK correctors:

(3) Reference Station Settings Use this screen to configure settings such as the station coordinates. The user must enter accurate information in these fields, as this data significantly affects the accuracy of logged data files and broadcast RTK correctors. 37 For Reference Station Mode:

There are three available options: Auto Rover, Auto Base, and Manual Base. Auto Rover: The receiver will serve as Rover after the user restarts the receiver each time. Auto Base: The receiver will serve as Base after the restart, and then broadcast RTK correctors based on coordinates obtained through single-point positioning automatically. 38 Manual Base: The receiver will serve as Base after the restart, and then broadcast RTK correctors based on the coordinates before power off. For Reference Latitude and Reference Longitude:

There are mainly three methods to enter the reference coordinates and shown as follows:

Acquire Current Position: Click this button to acquire current position obtained through single-point positioning automatically. Manual Input: Manually input the known coordinates. From CORS: After logging in CORS, the receiver will obtain a coordinate based the configurations at the Sample for Average field. (See 6.2.1.5. I/O Settings menu for more details about logging in CORS.) For Sample for Average:

If the users chose to get the location coordinate from CORS, the users could determine the positioning limit and sampling amount. The positioning limit falls into two types:

Single Solution Coordinates: Collect the coordinates of receiver obtained through single-point positioning. Fixed Solution Coordinates: Only collect coordinates of the receiver based on fix solution. After the configuration of positioning limit and sampling amount, click to carry out sampling and to average the result will be served as the coordinates of the current position. Also, users can click to save the current settings.

(4) Receiver Reset Use this screen to completely or partially reset the receiver:

39

(5) Languages Use this screen to select the web interface language:

(6) User management Use this screen to edit user management:

(7) USB function Switch Use this screen to switch USB function:

(8) HCPPP Settings Use this screen to set HCPPP:

40

(9) else settings Use this screen to set :1PPS, clockswitch, psrsmooth, simuator. 6.2.1.4 Data Recording Menu Use the Data Logging menu to set up the receiver to log static GNSS data and to view the logging settings. The user can configure settings such as observable rate, recording rate, continuous logging limit, and whether to auto delete old files if memory is low. This menu also provides the controls for the FTP push feature:

41

(1) Log Settings This page shows the data logging status, internal and external storage usage and data logging status of each storage thread. Also, users can configure the data logging settings for each storage thread, including recording name, saving location, storage limit, store formats, start time, etc. To open or close all the storage threads, click the [ON] or [OFF] button at the Switch field. Notes: The [ON] and [OFF] button to the right of Log Status field are the Master Log Switch. Every storage thread can log data only when the Master Log Switch is ON. And users can edit the settings of storage threads only when the Master Log Switch is OFF. To edit the settings of each storage thread, click the [Modify] button at the right of the required storage thread, and then the Recording Edit screen appears:

42 In this screen, the user can set all data logging parameters, and determine whether the recording files will be affected by the FTP Push. The main parameters are as follows:

a) Auto Record: Select Yes or No to determine whether to log data when the Master Log Switch is ON. b) Sample Interval: Select the observable rate from the dropdown list. c) Store Location: Determine whether to store in internal storage or external storage. d) Start Date: Set the start time of data log in UTC. Select Yes or No option below to determine whether to start logging from the set time. e) Duration Time: Set the time interval of recording. f) Storage: Set the storage limit of this thread. g) Circulating Memory: Select Yes or No to determine whether to auto delete old files if the storage space is full. h) Storage Format: The default format of recording files is HCN. i) FTP Push: Decide whether to push the stored files to the FTP server of the users choice. can click screen. Click to save the settings and back to the Log Settings screen. Also, users to abandon the changed settings and back to Log Settings Notes: To delete the record data, the user can remove all the record data by the total button and clear all accounts. Also, the user can delete each record data by the clear button under the selected thread. To delete the recorded files of ANY storage thread, click the to the right of To delete the recorded files of ALL storage threads, click [Clear All] button. the required storage thread.

(2) FTP Push Settings Use this screen to configure the receiver to push stored files to the FTP server of the users choice. Only files that are configured to use FTP push are transmitted. Click 43 appears:

to the right of the required FTP server, and the FTP Push Settings screen

(3) FTP Push Recording

(4) Data Download Shows the related information about the recorded filed that be pushed. And users can click [Clear FTP Push Log] in the upper right corner to clear the status of FTP Push operations. In this submenu, users can download the data files that recorded in the internal storage through the internal FTP site. Also, the user can directly download the static data through file explorer. a) Use web data download submenu:

Click this submenu, and then the login dialogue box will prompt the user to enter a username and password:

44 The default login account for the internal FTP site is:

Username: ftp Password: ftp Click the directory named logs/ to view and download the files currently stored on the receiver:

To find the file need to be downloaded, click the name of storage folder (logs_ plus with the number of the storage thread) the date of the file that be recorded the format of the file the name of the target file. 45 To download a file, left-click the name of the target file download the file according to the prompts. b) Use File Explorer to the IP of According Input ftp://192.168.32.161/ into the File Explorer. Press Enter and the user can download the data from the logs folder after successful login the internal FTP site (same account as given above):

the writers case, receiver, the P5 in 46 The path of the static data is inside the logs folder, the same with the downloading path from the website.

(5) Distance Download Use this function to login data after you set port forwarding. 6.2.1.5 I/O Settings Menu Use the I/O Settings menu to set up all receiver outputs and inputs. The receiver can output CMR, RTCM, Raw data, Ephemeris data, GPGGA, GPGSV, on TCP/IP, UDP, serial port, or Bluetooth ports. The following figure shows an example of the screen that appears when the user selects this submenu. 47 In this submenu, users can configure 4 types of input and output settings.

(1) RTK Client After configuring the settings of RTK client, users can log on CORS or APIS. Click the

[Connect] button to the right the I/O Settings screen will appear choose one of the connection protocols among the NTRIP, APIS_BASE, and APIS_ROVER configure the related parameters click [Confirm] to log on CORS or APIS. a) Connection Protocol: NTRIP b) Connection Protocol: APIS_BASE 48 c) Connection Protocol: APIS_ROVER d) TCP/UDP Client Click the [Connect] button to the right of required TCP/UDP Client the TCP/UDP Client screen will appear select the connection protocol from the dropdown list enter the IP and Port of the target server configure messages that the user want to output to the target server click [Confirm] to save and complete the connection. 49 Notes: If the receiver and server are under the same Local Area Network (LAN), users can use the IP address in LAN of the server with any Port. However, if the receiver and server are under the two different LAN, users should use the public IP address of the server and configure the port mapping of the server.

(2) TCP/IP Server Click the [Connect] button to the right of required TCP/IP Server the TCP Server/Ntrip Caster screen will appear select one of the connection protocols between NTRIP and TCP configure the other related parameters click [Confirm]

to save the settings and open the server. a) Connection Protocol: NTRIP 50 b) Connection Protocol: TCP

(3) COM Port Click the [Settings] button on the right of required COM Port row the Serial Port Setup screen will appear select Baud Rate used to transmit data configure the messages that the user want to output through the serial port click [Confirm] to save the settings and start to transmit. 51 Notes: For the Serial Port (DB9), it is compatible with connection with external meteorograph.

(4) Bluetooth Click the [Settings] button on the right of Bluetooth row the Bluetooth Set screen will appear configure the messages that the user want to transmit through Bluetooth click [Confirm] to save the settings and start to transmit. 52 6.2.1.6 Network Set Menu Use this menu to check and configure the Ethernet settings:

(1) Summary The following figure shows an example of the screen that appears when the user selects this submenu:

53

(2) Wired Network Setting Use this submenu to configure the related parameters of the Network, including static IP, subnet mask, etc.

(3) Mobile Network Setting Use this submenu to configure the settings of the Network, then support mobile network.

(4) Email Alarm 54

(5) HTTP

(6) HTTPS

(7) FTP Service 6.2.1.7 Network Security Menu Use this menu to check and configure the Network Security. 55

(1) Firewall

(2) Port filtering Use this submenu to control the access to the corresponding port of the receiver.

(3) MAC filtering Use this submenu to control the computers access to the receiver on the LAN. 56

(4) Service ports 6.2.1.8 Module Setting Menu Use this menu to check and configure the Module settings.

(1) Summary The following figure shows an example of the screen that appears when the user selects this submenu:

57

(2) Wi-Fi Settings Use this submenu to configure the related parameters of the Wi-Fi settings, including Wi-Fi mode, encrypt type, password, etc.

(3) Bluetooth Settings The following figure shows an example of the screen that appears when the user selects this submenu:

58

(3) Config File 6.2.1.9 Firmware Menu Use this menu to check the current firmware information, download the system log, update the receiver firmware, download or update the configuration file and register the receiver.

(1) Firmware Info Use this submenu to check the current firmware information. The following figure shows an example of the firmware information.

(2) The Hardware Version Use this submenu to check the current hardware information. The following figure shows an example of the hardware information. 59 In this submenu, users can download the configuration file by clicking [Download]

button and determine a saving path to download the configuration file (.cfg file). Also, users can click the [Browse] button to locate the existing configuration file click [Confirm] button to confirm the selected file and start updating.

(4) System Log Use this submenu to download the system log of the receiver.

(5) User Log Use this submenu to tick which logs files and downloads the user log of the receiver. 60

(6) Firmware Update Use this submenu to load new firmware to the receiver across the network. Click the

[Browse] button to locate the upgrade file click [Confirm] button to confirm the selected upgrading file and start upgrading. Notes: It will take about 2 or 3 minutes to complete the firmware upgrading.

(7) Board Upgrade Use this submenu to upgrade board. Click [Browse] to choose upgrade files and Click

[Confirm] to upgrade.

(8) Upgrade Online

(9) GNSS Registration Use this submenu to register the receiver. Paste or enter the registration code to the Registration Code field click [Registration] button to complete the registration. 61 62 7 Default Setting and Configuration Files Most of the receiver settings are stored in application files. The default application file, Default.cfg, is stored permanently in the receiver and contains the factory default settings for the P5 GNSS reference receiver. Whenever the receiver is reset to its factory defaults, the current settings (stored in the current configuration file, copy.cfg) are reset to the values in the default application file. The P5 GNSS reference receiver extends the use of configuration files to allow simplified receiver is setting duplication in multiple receivers. This is sometimes referred to as receiver cloning and is very useful when preparing a large group of receivers for a field data collection campaign. 7.1.1 Default Receiver Settings Function Factory default values SV Enable General controls LEMO port DB9 port Log status Differential data Raw data Ephemeris data NMEA (GPGGA, GPGSV) Reference position Antenna Elevation mask PDOP mask Baud rate Format Flow control Baud rate Format Flow control Latitude Longitude Height Type Measure Method Height All SVs enabled 0 6 9600 9-None-1(10-pin) None 9600 3-None-6 None OFF OFF OFF OFF OFF 000.00000000 000.00000000 0.000 None Antenna Phase Center 2.0000 (Meter) 63 7.1.2 Resetting the Receiver to Factory Defaults Log in the web page of the receiver tap and unfold the Receiver Reset menu tap the Receiver Reset submenu click the [Confirm] button to the right of Reset to Defaults field. 7.1.3 Using Configuration Files to Duplicate Receiver Settings The P5 GNSS reference receiver allows the extensive use of application files to retain a unique receiver configuration. With this receiver, the user can create a configuration file that includes most of the receiver's unique configuration settings. The user can then update that configuration file onto one or more other P5 GNSS reference receivers to quickly configure them to match the receiver which creates that configuration file. Notes: The configuration file includes most of the configuration settings except IP Address, IP Mask, Gateway and DNS Server. This is called receiver configuration cloning or cloning. Receiver cloning greatly reduces the time required to prepare a large group of receivers for field operations. Log in the web page of the receiver tap and unfold the Firmware menu tap the Config File submenu click the [Browse] button to locate the existing configuration file click [Confirm] button to confirm the selected file and start updating. 64 65 8 Specifications This chapter describes the specifications for the P5 GNSS reference receiver. Specifications are subject to change without notice. 8.1 GNSS Characteristics Feature Tracking Specification 624 channels GPS: L1, L2C, L5 GLONASS: L1, L2 SBAS: L1 QZSS:L1, L5 Galileo: E1, E5A, E5B BDS: B1, B2, B3, B1c, B2a Pseudo-range measurement with high-precision multi-correlator Very low noise carrier phase measurements with < 1 mm precision in a 1 Hz bandwidth Horizontal: 8 mm + 1 ppm RMS Vertical: 15 mm + 1 ppm RMS Horizontal: 2.5 mm + 0.5 ppm RMS Vertical: 5 mm + 0.5 ppm RMS Horizontal: 3 mm + 0.1 ppm RMS Vertical: 3.5 mm + 0.4 ppm RMS Typically < 8 s Typically > 99.9%

Real Time Kinematic

(RTK) Post Processing Static Post Processing Static

(long observation) Initialization time Initialization reliability 66 8.2 Communication Feature RJ45 Jack DB9 male COM2 (10-pin LEMO port) LAN port USB port GNSS port Bluetooth Wi-Fi Protocols Internal data External storage Network Modem

(Internally integrated 4G modem) Specification Ethernet 3-wire RS232, see C.III. CHC P5 receiver db9 male connector definition for details 9-wire RS232, see C.I. CHC P5 receiver COM 2 (10-pin LEMO port) definition for details HTTP, TCP/IP, UDP, FTP, NTRIP Caster, NTRIP Server, NTRIP Client Simultaneously transmits multiple data stream Compatible with a proxy server and route table Compatible with Power over Ethernet (PoE) Type-A USB receptacle operates in Host mode GNSS ports provided by the receiver Fully integrated, fully sealed 2.4 GHz Bluetooth wireless technology Compatible with Android, Windows Mobile, and Windows desktop operating systems 802.11 b/g/n, access point mode Correction formats: CMR, RTCM 2.x, RTCM 3.x Observables: RINEX 2.x, RINEX 3.X, BINARY Position/Status I/O: NMEA-0183 output Met sensor Data logging and position output frequency up to 20 Hz Storage capacity 32 GB Up to 1 TB LTE (FDD): B2, B4, B5,B7, all bands with diversity DC-HSPA+/HSPA+/HSPA/UMTS: B2, B5, all bands with diversity TD-SCDMA: B34, B39 EDGE/GPRS/GSM 850/1900 MHz 67 8.3 Physical Feature Specification Size (L x W x H) Weight Operating temperature Storage temperature Humidity Water and Dustproof Shock and Vibration 200 x 150 x 69 mm (7.9 x 5.9 x 2.7 in) 2.15 kg (75.8 oz)

-40 C to +65 C (-40 F to +149 F)

-45 C to +80 C ( 49F to 176F) 100% condensation Tested to IP67; waterproof for temporary immersion to a depth of 1 m (3.28 ft) for 30 minutes; dustproof Designed to survive a 1 m (3.28 ft) drop onto concrete Feature Specification 8.4 Electrical Power consumption Internal External power Operation time on internal battery 5W nominal, dependent on user settings Integrated internal battery 7.4 V, 17000 mA-h, Lithium-ion Internal battery can operate as a UPS in the event of external power source outage The internal battery will charge from the external power source when the internal battery is not fully charged Power source supply (Internal / External) is hot swap capable in the event of power source removal or cut-off Power input on LEMO ports is 9 V DC to 36 V DC external power input The receiver auto powers on when connected to external power with a voltage above 11 V Up to 24 hours continuous operation, dependent on user setting 68 8.5 General Feature Specification Front panel display Receiver type Antenna type Power button and indicator LED Escape, OK and 4 arrow keys (up, down, left, right) USB port and 4G slot LCD GNSS reference receiver CHC AT312 GNSS Geodetic antenna or CHC C220GR2 GNSS Choke Ring antenna preferred. Other models supported. 8.6 Data storage Feature Specification Internal storage External storage Storage method Data format Data download 32 GB Supporting USB drive or portable hard drive 8-thread logging, circulating data logging HCN, RINEX, original binary data FTP push, online download, storage on an external USB device 69 Upgrading the Receiver Firmware A. Upgrading the Receiver Firmware The receiver is supplied with the latest version of the receiver firmware already installed. If a later version of the firmware becomes available, use the USB device to upgrade the firmware on the users receiver. For the latest firmware resource, please consult the users local CHC dealer. The user can also upgrade the receiver through the web interface. The firmware file required to upgrade the receiver through the Web interface in the folder where the user format update_P5_e_vXXXXX_bYYYYMMDD.bin where XXXXX represents the version of firmware and YYYYMMDD represents the firmware encapsulation date. required saves type file. The the the file is A.I. Upgrading the Receiver Firmware A.I.i. Upgrading through the USB Port

(1) Copy the firmware file to the root directory of external storage device such as USB drive, portable hard drive.

(2) Connect the external storage device with the receiver through the USB port.

(3) Restart the receiver, and then the screen will prompt the user whether to upgrade the firmware.

(4) Press OK button to upgrade the firmware.

(5) When the upgrading is completed, the receiver will be restarted, and the screen will prompt the user whether to upgrade the firmware again.

(6) Press one of the arrow keys to quit the upgrading and then remove the external storage device. A.I.ii. Upgrading through A Browser Please connect to the receiver through a web browser according to 6.2. Configuring through a web browser, and then refer to 6.2.1.9 Firmware menu Firmware Update for detail operation steps. Notes: After the receiver firmware upgrading, the IP information may be changed. Please confirm the IP setting of the receiver before using it. 70 B. Troubleshooting Use this appendix to identify and solve common problems that may occur during the use of the receiver. Please read this section before contact CHC Technical Support. B.I. Receiver Issues This section describes some possible receiver issues, possible causes, and how to solve them. Issue Possible cause Solution The receiver does not turn on. External power is too low. Internal power is too low. External power is not properly connected. Faulty power cable. Check the charge on the external battery and, if applicable, check the fuse. Check the charge on the internal battery. Check that the LEMO connector is seated correctly and that the cable is secured to the receiver. Check for broken or bent pins in the connector. Check that the user is using the correct cable for the connection between LEMO port and external power supply. Check that the correct external power supply is connected to a particular LEMO port. Check pinouts with a multimeter to ensure the internal wiring is intact. Wait until the receiver display shows that more 71 The receiver does not log data. The receiver is tracking fewer than four satellites. The receiver is not responding. The receiver needs a soft reset. The receiver is not receiving satellite signals The GNSS antenna cable is loose. The cable is damaged. The GNSS antenna is not in clear line of sight to the sky. than four satellites are tracked. Turn off the receiver and then turn it back on again. Make sure that the GNSS antenna cable is tightly seated in the antenna connector on the GNSS antenna. Check the cable for any signs of damage. A damaged cable can inhibit signal detection from the antenna at the receiver. Make sure that the GNSS antenna is located with a clear view of the sky. Restart the receiver as a last resort (turn off and then turn it on again). 72 C. Communication Ports Definition C.I. CHC P5 Receiver COM

(10-PIN LEMO Port) Definition PIN Signal Name Description RS232-TX (receive data through this pin) RS232-TX (transmit data through this pin) Eternal Power Input (Positive Pole) Eternal Power Input (Positive Pole) Eternal Power Input (Negative Pole), External Power Ground Eternal Power Input (Negative Pole), External Power Ground USB Device USB Device USB Device RXD TXD PWR PWR PWR, GND PWR, GND VBUS DM DP Not Used 1 2 3 4 5 6 7 8 9 10 73 1 2 3 4 5 6 7 8 9 C.II. CHC P5 Receiver DB9 Male Connector Definition PIN Signal Name Description RS232-TX (transmit data through this pin) RS232-RX (receive data through this pin) GND External Power Ground Not Used TXD RXD Not Used Not Used Not Used Not Used Not Used 74 D. Glossary Base Station Terms Description Also called reference station. A base station in construction is a receiver placed at a known point on a job site that tracks the same satellites as an RTK rover and provides a real-time differential correction message stream through the radio to the rover, to obtain centimeter level positions on a continuous real-time basis. A base station can also be a part of a virtual reference station network or a location at which GPS observations are collected over a period, for subsequent postprocessing to obtain the most accurate position for the location. Carrier A radio wave is having at least one characteristic (such as frequency, amplitude, or phase) that can be varied from a known reference value by modulation. Carrier Frequency It means the frequency of the unmodulated fundamental output of a radio transmitter. The GPS L1 carrier frequency is 1575.42 MHz. Carrier Phase The time is taken for the L1 or L2 carrier signal generated by the satellite to reach the GPS receiver. Measuring the number of carrier waves between the satellite and receiver is a very accurate method of calculating the distance between them. CMR CMR+

Compact Measurement Record. A real-time message format developed by Trimble for broadcasting corrections to other Trimble mainboard receivers. CMR is a more efficient alternative to RTCM. DGPS See real-time differential GPS. Differential Correction Differential correction is the process of correcting GPS data collected on a rover with data collected 75 Differential GPS See real-time differential GPS. DOP Dual-Frequency GPS EGNOS simultaneously at a base station. Because the base station is in a known location, any errors in data collected at the base station can be measured, and the necessary corrections applied to the rover data. Differential correction can be done in real-time, or after the data has been collected by postprocessing. Dilution of Precision. A measure of the quality of GPS positions, based on the geometry of the satellites used to compute the positions. When satellites are widely spaced relative to each other, the DOP value is lower, and position accuracy is greater. When satellites are close together in the sky, the DOP is higher, and GPS positions may contain a greater level of error. PDOP (Position DOP) indicates the three-dimensional geometry of the satellites. Other DOP values include HDOP (Horizontal DOP) and VDOP (Vertical DOP), which indicate the accuracy of horizontal measurements

(latitude and longitude) and vertical measurements respectively. PDOP is related to HDOP and VDOP as follows:

PDOP = HDOP + VDOP A type of receiver that uses both L1 and L2 signals from GPS satellites. A dual-frequency receiver can compute more precise position fixes over longer distances and under more adverse conditions because it compensates for ionospheric delays. European Geostationary Navigation Overlay Service. A satellite-based augmentation system (SBAS) that provides a free-to-air differential correction service for GPS. EGNOS is the European equivalent of WAAS, which is available in the United States. Elevation Mask The angle below which the receiver will not track 76 Ephemeris/Ephemerides A list of predicted (accurate) positions or locations of Epoch Firmware GLONASS GNSS GSOF HDOP satellites. Normally set to 10 degrees to avoid interference problems caused by buildings and trees, and multipath errors. satellites as a function of time. It contents a set of numerical parameters that can be used to determine a satellites position. Available as broadcast ephemeris or as postprocessed precise ephemeris. The measurement interval of a GPS receiver. The epoch varies according to the measurement type: for real-time measurement, it is set at one second; for post-processed measurement, it can be set to a rate of between one second and one minute. For example, if data is measured every 15 seconds, loading data using 30-second epochs means loading every alternate measurement. The program inside the receiver that controls receiver operations and hardware. Global Orbiting Navigation Satellite System. GLONASS is a Soviet space-based navigation system comparable to the American GPS system. The operational system consists of 21 operational and 3 non-operational satellites in 3 orbit planes. Global Navigation Satellite System. General Serial Output Format. A Trimble proprietary message format. Horizontal Dilution of Precision. HDOP is a DOP value that indicates the accuracy of horizontal measurements. Other DOP values include VDOP

(vertical DOP) and PDOP (Position DOP). Using a maximum HDOP is ideal for situations where vertical precision is not particularly important, and the 77 L1 L2 L5 MSAS Multipath MEA users position yield would be decreased by the vertical component of the PDOP ( for example, if the user is collecting data under canopy). The primary L-band carrier used by GPS satellites to transmit satellite data. The secondary L-band carrier used by GPS satellites to transmit satellite data. The third L-band carrier used by GPS satellites to transmit satellite data. L5 will provide a higher power level than the other carriers. As a result, acquiring and tracking weak signals will be easier. MTSAT Satellite-Based Augmentation System. A satellite-based augmentation system (SBAS) that provides a free-to-air differential correction service for GPS. MSAS is the Japanese equivalent of WAAS, which is available in the United States. Interference, similar to ghosts on a television screen that occurs when GPS signals arrive at an antenna having traversed different paths. The signal traversing the longer path yields a larger pseudorange estimate and increases the error. Multiple paths can arise from reflections off the ground or off structures near the antenna. National Marine Electronics Association. NMEA 0183 defines the standard for interfacing marine electronic navigational devices. This standard defines several

'strings' referred to as NMEA strings that contain navigational details such as positions. Most CHC GPS receivers can output positions as NMEA strings. 78 Multi-Frequency GPS A type of receiver that uses multiple carrier phase measurements (L1, L2, and L5) from different satellite frequencies. PDOP Position Dilution of Precision. PDOP is a DOP value that indicates the accuracy of three-dimensional measurements. Other DOP values include VDOP

(vertical DOP) and HDOP (Horizontal Dilution of Precision). Using a maximum PDOP value is ideal for situations where both vertical and horizontal precision is important. Postprocessing Postprocessing is the processing of satellite data after it has been collected, in order to eliminate the error. This involves using computer software to compare data from the rover with data collected at the base station. Real-Time Differential GPS Also known as a real-time differential correction or DGPS. Real-time differential GPS is the process of correcting GPS data as the user collect it. Corrections are calculated at a base station and then sent to the receiver through a radio link. As the rover receives the position, it applies the corrections to give the user a very accurate position in the field. Most real-time differential correction methods apply corrections to code phase positions. RTK uses carrier phase measurements. While DGPS is a generic term, its common interpretation is that it entails the use of single-frequency code phase data sent from a GPS base station to a rover GPS receiver to provide sub-meter position accuracy. The rover receiver can be at a long range (greater than 100 km (62 miles)) from the base station. Reference Station See base station Rover A rover is any mobile GPS receiver that is used to collect or update data in the field, typically at an unknown location. RTCM Radio Technical Commission for Maritime Services. A 79 RTK SBAS Skyplot SNR UTC VRS Signal-To-Noise Ratio commission established to define a differential data link for the real-time differential correction of roving GPS receivers. There are three versions of RTCM correction messages. All CHC GPS receivers use Version 2 protocol for single-frequency DGPS type corrections. Carrier phase corrections are available on Version 2, or on the newer Version 3 RTCM protocol, which is available on certain CHC dual-frequency receivers. The Version 3 RTCM protocol is more compact but is not as widely supported as Version 2. Real-time kinematic. It is a real-time differential GPS method that uses carrier phase measurements for greater accuracy. Satellite-Based Augmentation System. SBAS is based on differential GPS but applies to wide area (WAAS/EGNOS and MSAS) networks of reference stations. Corrections and additional information are broadcast via geostationary satellites. SNR. The signal strength of a satellite is a measure of the information content of the signal, relative to the signals noise. The typical SNR of a satellite at 30 elevation is between 47 and 50 dBHz. The quality of a GPS position is degraded if the SNR of one or more satellites in the constellation falls below 39. The satellite skyplot confirms reception of a differentially corrected GPS signal and displays the number of satellites tracked by the GPS receiver, as well as their relative positions. See signal-to-noise ratio Universal Time Coordinated. A time standard based on the local solar mean time at the Greenwich meridian. Virtual Reference Station. A VRS system consists of GNSS hardware, software, and communication links. It uses data from a network of reference stations to 80 WAAS provide corrections to each rover that are more accurate than corrections from a single base station. To use the VRS corrections, the rover sends its position to the VRS server. The VRS server uses the reference station data to model systematic errors (such as ionospheric delay) at the rover position. It then sends RTCM or CMR correction messages back to the rover. Wide Area Augmentation System. WAAS was established by the Federal Aviation Administration

(FAA) for flight and approach navigation for civil aviation. WAAS improves the accuracy and availability of the basic GPS signals over its coverage area, which includes the continental United States and outlying parts of Canada and Mexico. The WAAS system provides correction data for visible satellites. Corrections are computed from ground station observations and then uploaded to two geostationary satellites. This data is then broadcast on the L1 frequency and is tracked using a channel on the GPS receiver, exactly like a GPS satellite. Use WAAS when other correction sources are unavailable, to obtain greater accuracy than autonomous positions. For more information on WAAS, refer to the FAA website at http://gps.faa.gov. The EGNOS service is the European equivalent, and MSAS is the Japanese equivalent of WAAS. 81 CHC - Shanghai Huace Navigation Technology Ltd. 599 Gaojing Road, Building D Shanghai, 202103, China Tel: +86 21 542 60 273 Fax: +86 21 649 50 963 Email: | support@chcnav.com Website: www.chcnav.com

Label 65mm 35mm FCC ID: SY4-A02029 Shanghai Huace Navigation Technology LTD. Model name: Geodetic GNSS Receiver Model No.: P5 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. Location

Shanghai Huace Navigation Technology LTD. Agent Authorization Company: Shanghai Huace Navigation Technology LTD. Address: 599 Gaojing Road, Building D, Shanghai 201702, China Product Name: Geodetic GNSS Receiver Model Number(s): P5 Product Description: Geodetic GNSS Receiver with BT, WiFi, 2G, 3G, 4G function. We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Date: 2021-04-16 Name:

Chu Sheng Title:

CERTIFICATION MANAGER Company: Shanghai Huace Navigation Technology LTD.

Shanghai Huace Navigation Technology LTD. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-04-15 Subject; Request for Long Term Confidentiality FCC ID: SY4-A02029 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description BOM Tune up It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name:

Chu Sheng Title:

CERTIFICATION MANAGER Company: Shanghai Huace Navigation Technology LTD. Date: 2021-04-16

Shanghai Huace Navigation Technology LTD. Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2021-04-15 SUBJECT: FCC Application for SY4-A02029 To Whom It May Concern:

We, the undersigned, hereby authorize Mark Zhu at Shenzhen Alpha Product Testing Co., LTD. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen Alpha Product Testing Co., LTD. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Date:

2021-04-16 Signature:

Name:

Chu Sheng Title:

CERTIFICATION MANAGER Company:

Shanghai Huace Navigation Technology LTD. G:\\\A2102016-C01-M01_FCC-ID_GNSS Infrastructure _P5__\8.\MICOM\POA_Letter_140225.docx