FCC ID: NDATX200ENV TRANSMITTER POCSAG ENCODER

Overview Channel switch Power indicator (Orange) Transmitting indicator (Green) RSSI (Red) Link (Red) FCC Radiation Exposure StatementThis equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 30 centimeters between the radiator and your body.This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.The antennas used for this transmitter must be installed to provide a separation distance of at least 30 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.Professional installation instruction1.Installation personalThis product is designed for specific application and needs to be installed by a qualified personal who has RF and related rule knowledge. The general user shall not attempt to install or change the setting.2. Installation locationThe product shall be installed at a location where the radiating antenna can be kept 2m from nearby person in normaloperation condition to meet regulatory RF exposure requirement.3. WarningPlease carefully select the installation position and make sure that the final output power does not exceed the limit setforce in relevant rules. The violation of the rule could lead to serious federal penalty.POCSAG TransceiverTX-200EN Series User ManualEnglishThis 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.FCC ID: NDATX200ENV I/O port function description - Model: TX-200EN Pin No Pin 1 Signal Type Pin Name I/O Type None

Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 TXD RXD None GND Carrier DET None Flow control AUDIO OUT Ouput Input

GND Ouput

Ouput Ouput RS232 RS232

GND 0-5V (TTL)

RS232 Description

RS232 control signal RS232 control signal

Signal reference point Carrier detection output

RS232 control signal 1Vp-p @ 10k load Receiver audio signal output System Specifications - Transmitter Frequency Range Output Power Modulation Type FSK,FM Deviation Frequency Tolerance Frequency Stability Harmonic Spurious VHF 135 ~ 175MHz 10dBm ~ 37dBm (10mW 5W) FM,2FSK

+/- 2.5kHz, 4.5kHz, 5kHz VHF: < 5ppm ,UHF: < 3ppm VHF: < 5ppm ,UHF: < 3ppm

< -57dBc or -36dBm

< -60dBc System Specifications - Receiver LO Frequency Temperature Stability Receiver Sensitive Image Rejection Spurious Rejection Adjacent Channel Rejection Intermodulation Response Rejection 2nd IF Frequency IF Bandwidth Power Voltage Current Dimension

< 3ppm

< -118dBm @12dB SINAD

>60dB

>60dB 12.5kHz Channel Spacing: >52dB ,25kHz Channel Spacing: >60dB

+/-25kHZ/50kHZ : 60dB, +/-50kHZ/100kHZ : 60dB 455kHz 15kHz 12 V 2.5 A 11 x 9 x 3 cm

Gold Apollo Co Ltd Rm 1, 3rd FI., No. 77 Sec 1 Hsin Tai Wu Rd, Hsi-Chih Dist New Taipei city Taiwan 221 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2019/12/25 To whom it may concern:

We, the undersigned, hereby authorize Worldwide Testing Services (Taiwan) Co., Ltd to act on our behalf in all matters relating to applications for equipment authorization FCC ID: NDATX200ENV including the signing of all documents related to these matters. Any and all acts carried out by Worldwide Testing Services (Taiwan) Co., Ltd on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, dow Vy Signature Name: Adam Yu Title: R&D Manager Company: Gold Apollo Co Ltd

Gold Apollo Co Ltd Rm 1, 3rd FI., No. 77 Sec 1 Hsin Tai Wu Rd, Hsi-Chih Dist New Taipei city Taiwan 221 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2019-12-25 Request for Long-Term Confidentiality Company name:

FCC ID: NDATX200ENV FCC Part 15 Certification To whom it may concern:

In accordance with 0.457(d) and 0.459 of CFR 47, Gold Apollo Co Ltd hereby requests Long-Term confidentiality of all Block Diagrams, Schematics, Operational Description, Tune Up attachments for the subject application. These documents contain detailed system and equipment description and related information about the product which Gold Apollo Co Ltd considers to be proprietary, confidential and a custom design and otherwise would not release to the general public. Since the design is a basis from which future technological products will evolve, Gold Apollo Co Ltd considers that this information would be of benefit to its competitors and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Sincerely, Rada Yu Signature Name: Adam Yu Title: R&D Manager Company: Gold Apollo Co Ltd