2A3OORA27VHF Marine Radio

Shenzhen Ysair Technology Co.,Ltd. Add: 6/F, building 6, Yunli intelligent park, No. 3, Changfa Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen,Guangdong,China Web: www.retevis.com E-mail: [email protected] Facebook: facebook.com/retevis RA27 VHF Marine Radio Instruction Manual (EN) i NOTE: This transceiver is divided into built-in GPS receiving module and no built-in GPS receiving module. The two ver- sions are optional and the instructions are general. TO USER Thank you for purchasing this VHF DSC marine transceiver. transceiver during use. Please read all instructions carefully and completely before using the transceiver. The transceiver is based on the technical characteristics of CCIR 493-4 and the operational characteristics of CCIR 541- 3 of the International Radio Consultative Committee, and the resolutions of the International Telecommunication Union ITU-R Recommendation A.803(19), complying with national regula- tions and combined with practical use, a versatile Class B VHF DSC marine transceiver, it has dedicated DSC receiving chan- nel. This transceiver adopts advanced waterproof technology and has excellent waterproof performance. PRECAUTIONS Never use the distress call when your ship or per- sonnel is not in an emergency. Do not install the transceiver in hot, humid and dusty areas. The working voltage for the transceiver is 13.8V DC. If the power supply is 24V DC, please use a power converter (24V converts to 13.8V), or the transceiver won’t work. Never directly connect to 220V AC power supply, this will ruin the transceiver . If an abnormal odor or smoke is detected coming from the transceiver, turn Do not transmit before connecting the antenna, it will ruin the transceiver. After long time use, the heating panel becomes hot, this is normal state. 1ii CONTENTS PREPARATION Supplied Accessories .........................................................1 Transceiver Mounting .........................................................1 Antenna Connection ...........................................................2 Installation of Connecting Cables .....................................2 Dimensions .........................................................................4 PANEL DESCRIPTION Front Panel ..........................................................................5 Softkeys ...............................................................................6 Microphone .........................................................................7 Function Display .................................................................8 BASIC OPERATION Power ON/OFF ..................................................................10 Transmitting and Receiving .............................................10 Channel Group Selection .................................................11 Channel Selection .............................................................11 Call Channel Programming ..............................................12 Channel Name ...................................................................13 Display Backlight ..............................................................13 Display Contrast ...............................................................13 Vibration Water Draining Function ..................................14 Microphone Lock Function ..............................................14 SCAN OPERATION Scan Types ........................................................................15 Setting TAG Channels ......................................................15 Starting a Scan ..................................................................16 DUALWATCH / TRI-WATCH Description ........................................................................17 Operation ...........................................................................17 DSC OPERATION MMSI Code Programming ................................................18 ATIS ID Programming .......................................................19 DSC Address ID ................................................................19 Distress Call ......................................................................23 Individual Call ...................................................................27 Group Call .........................................................................30 All Ships Call .....................................................................32 Position Request Call / Polling Request Call .................33 Test Call .............................................................................36 DSC Log .............................................................................40 Multiple-task Mode ...........................................................41 MENU SCREEN OPERATION Menu Screen Operation ...................................................43 Menu Screen Items ...........................................................43 Radio Settings ...................................................................45 &RQ¿JXUDWLRQ ....................................................................46 VHF MARINE RADIO CHANNEL LIST (Default USA) SPECIFICATIONS TROUBLESHOOTING PREPARATION ■ Supplied Accessories The following accessories are supplied: ITEMQTY. DC Power Cable1 Spare Fuse1 Mounting Bracket1 Mounting Screws Package1 Instruction Manual1 GPS Antenna (For Model with GPS Only)1 ■ Transceiver Mounting D Using the Supplied Mounting Bracket The universal mounting bracket supplied with your transceiver allows overhead or dashboard mounting. 1. Fix the mounting bracket to overhead or dashboard with the supplied screws and mount the transceiver to the mounting bracket with the knob bolts. 2. Adjust the transceiver so that the face of the transceiver is at 90°to your line of sight when operating it and tighten the knob bolts so that the transceiver is securely mounted. NOTE: You may use a spongy cushion between the trans- ceiver and mounting bracket …

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2022‐05‐10 Federal Communications Commission Authorization and Evaluation Division, 7435 Oakland Mills Road Columbia, MD 21046 USA Re: 2A3OORA27 Gentlemen: The scanner receiver equipment meets the requirements of the FCC Rules, 15.121(a) and (b). Compliance is achieved through the following methods: The scanner receiver in this equipment is incapable of tuning, or readily being altered, by the User to operate within the frequency bands allocated to the Domestic Public Cellular Telecommunications Service in Part 22. Blocking of the cellular frequencies is implemented in the firmware of the unit’s main control central processing unit (CPU). Coverage of 824 - 849 MHz and 869 - 894 MHz is completely blocked, since it is done in the microprocessor, and cannot be re-enabled by any user-accessible procedure, including diode, resistor, or jumper changes, nor by connection of any external device such as a personal computer, nor by installation of any “special” enabling semiconductor device. The scanning receiver is designed so that the tuning, control and filtering circuitry is inaccessible. The scanning receiver is reject any signals from the Cellular Radiotelephone Service frequency bands that are 38 dB or lower based upon a 12 dB SINAD measurement. Agency agreement expiration date: 2023‐05‐10 By: Weidong Shen Signature Printed Title: ‐ On behalf of : Shenzhen Ysair Technology Co., LTD Telephone: 0755-23481953

2022-05-10 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID:_ 2A3OORA27_____ Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. By: Weidong Shen Si gnature Printed Title: - On behalf of : Shenzhen Ysair Technology Co., LTD Telephone: +86-755-23481953

Report No.: CHTEW22040186 Page: 31 of 38 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) 7 EXTERNAL AND INTERNAL PHOTOS OF THE EUT External Photos Report No.: CHTEW22040186 Page: 32 of 38 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) Report No.: CHTEW22040186 Page: 33 of 38 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01)

Report No.: CHTEW22040186 Page: 34 of 38 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) Internal Photos Report No.: CHTEW22040186 Page: 35 of 38 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) Report No.: CHTEW22040186 Page: 36 of 38 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) Report No.: CHTEW22040186 Page: 37 of 38 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01)

Page: 1 of 17 TEST REPORT Report No..................................: CHTEW22040187 Report Verification: Project No.................................： SHT2203089001EW FCC ID ............................................. : 2A3OORA27 Applicant’s name ........................... : Shenzhen Ysair Technology Co., LTD Address ............................................. : 6/F, building 6, Yunli intelligent park, No. 3, Changfa Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen,Guangdong,China Test item description .................... : VHF Marine Radio Trade Mark ....................................... : RETEVIS Model/Type reference ....................... : RA27 Listed Model(s) ................................. : - Standard ......................................... : FCC CFR Title 47 Part 15 Subpart B Date of receipt of test sample...........: Mar.29, 2022 Date of testing..............................: Mar.30, 2022-Apr.22, 2022 Date of issue.................................: Apr.24, 2022 Result .................. ........................: PASS Compiled by ( position+printed name+signature) .. : File administrators Fanghui Zhu Supervised by ( position+printed name+signature) .. : Project Engineer Cheng Xiao Approved by (Position-Printed name-Signature) : RF Manager Hans Hu Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd. Address ............................................. : 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. The test report merely corresponds to the test sample. Report No.: CHTEW22040187 Page: 2 of 17 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) Contents 1. TEST STANDARDS AND REPORT VERSION ........................................... 3 1.1. Test Standards 3 1.2. Report version 3 2. TEST DESCRIPTION .................................................................... 4 3. SUMMARY ............................................................................... 5 3.1. Client information 5 3.2. Product description 5 3.3. Radio Specification Description 5 3.4. Testing Laboratory Information 6 4. TEST CONFIGURATION ................................................................. 7 4.1. Operation mode 7 4.2. Support unit used in test configuration and system 7 4.3. Testing environmental condition 7 4.4. Statement of the measurement uncertainty 7 4.5. Equipments Used during the Test 8 5. TEST CONDITIONS AND RESULTS ..................................................... 9 5.1. Conducted Emissions 9 5.2. Radiated Emissions 10 5.3. Antenna conducted power for reciver 14 5.4. Sanning receivers and frequency converters used with sanning receviers 16 6. TEST SETUP PHOTOS OF THE EUT .................................................. 17 7. EXTERNAL AND INTERNAL PHOTOS OF THE EUT .................................. 17 Report No.: CHTEW22040187 Page: 3 of 17 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) 1. TEST STANDARDS AND REPORT VERSION 1.1. Test Standards The tests were performed according to following standards: FCC CFR Title 47 Part 15 Subpart B - Unintentional Radiators ANSI C63.4: 2014 – 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 40GHz 1.2. Report version Revision No. Date of issue Description N/A 2022-04-24 Original Report No.: CHTEW22040187 Page: 4 of 17 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) 2. TEST DESCRIPTION Section Test Item Section in CFR 47 Result Test Engineer 5.1 Conducted Emissions 15.107(a) N/A N/A 5.2 Radiated Emissions 15.109(a) Pass Hongtao Meng 5.3 Antenna conducted power for recevier 15.111 Pass Caspar Chen 5.4 Scanning receviers and frequency converters used with scanning receivers 15.121(b) N/A #1 N/A Note: 1. The measurement uncertainty is not included in the test result. 2. #1, The scanning recevie frequency range of this EUT is from 156.025~162.025MHz,161.6500MHz to 163.275MHz,not in the cellular radiotelephone service frequency bands, so this item is not applicable. Report No.: CHTEW22040187 Page: 5 of 17 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) 3. SUMMARY 3.1. Client information Applicant: Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen,Guangdong,China Manufacturer: Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen,Guangdong,China 3.2. Product description Main unit Name of EUT: VHF Marine Radio Trade Mark: RETEVIS Model/Type reference: RM40 Listed Model(s) - Power supply: DC13.2V Hardware version: 6PM7-2086-BMA Software version: V1.011 3.3. Radio Specification Description Support Frequency Range: 156.025~162.025MHz Weather channel and frequency Modulation Type: FM Antenna Type: detachable GNSS type: GPS Operation frequency: 1575.42MHz Modulation Type: GPS Antenna Type: internal antenna Report No.: CHTEW22040187 Page: 6 of 17 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Repor…

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Report No.: CHTEW22040187 Page: 17 of 17 Issued: 2022-04-24 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) 6. TEST SETUP PHOTOS OF THE EUT Radiated Emissions 7. EXTERNAL AND INTERNAL PHOTOS OF THE EUT Refer to the test report No.: CHTEW22040186 --------End of Report--------