2A3OORB89Two Way Radio

USER’S MANUAL RB89 Contents --------------------------------------------------------------------------------01 -------------------------------------------------------------02 -------------------------------------------------------------------02 -----------------------------------------------------------------------05 -----------------------------------------------------------------06 -----------------------------------------------------------------------------07 W arning Familiar with this radio Function operation Factory setting Technical Indicators WARNING For downloading further resources: Brochures, Software/Firmware, Manual etc, Pls contact your direct reseller first OR go to website retevis.com and check “support” in the each product link to download it. W arning Please read this manual carefully before using this radio. Please do not charge the radio in flammable, explosive, and no radio signal places (such as gas stations and the airport). Please do not operate the radio without a license to the extent prohibitive by law . Please do not expose to sunlight for long and keep away from heating equipment. Please ensure this radio avoids any dusty, humid, and water-splashed place and avoids putting it near any heating distributor. If the radio is burning or smoking, please remove the battery from the radio, and contact your seller. The repair of this radio is in charge of professional technical; please do not disassembly by yourself. Charging notification Use the charger specified by this radio model to charge the battery. Please turn off the radio before charging. Please charge for at least 5 hours the first time to achieve the best battery performance. Please do not charge for a long time, nor if it will shorten the batteries' life. Stop charging when it is fully charging. The charger can charge this radio's battery; please do not charge other batteries. It will injure the charger and batteries. Please place the battery in a cool and dry place. Do not get close to the fire or exposed to the sun. Otherwise, there will be a safety hazard. Please do not transmit in charging. It is a normal phenomenon when charging heat. 01 Familiar with this radio. Charging instruction Charging mode: Plug the radio into a charger . The indicator flash red in charging, and fully charging turns green. 02 Antenna Indicator PTT button PF1 button / channel up PF2 button / channel down Volume / power knob Flashlight Speaker Mic remote headset / programming cable connector charging indicator Function operation 1. Power on/off 1.1 Turn the Power switch/Volume control clockwise. You will hear a click indicating the transceiver is ON. 1.2 Turn the Power switch fully counterclockwise to turn the radio OFF. 2. Volume adjustment 2.1 In receiving status, clockwise the volume/power knob to increase volume. 2.2 In receiving status, counterclockwise the volume/power knob to down the volume. 3. Transmitting/Receiving 3.1 In standby status, press the PTT button to transmit in the current channel, and the indicator flashes red. 3.2 Release the PTT button to receive the call on the current channel; the speaker reads the voice, and the LED indicator turns green. Notification: To transmit voice, press and hold the PTT button and speak into the microphone 1-2 inches (2.5-5 cm) away from your mouth in a normal tone of voice. Keep the radio from your head and body at least 1 inch (2.5cm) in transmitting. Please do not use it during many on-off actions; while the volume is adjusted to fit your listening feel the volume. Before speaking: Please set up the same frequency on the Transmitter and Receiver. Please set up the same CTCSS/DCS code on the Transmitter and Receiver. 4. Selecting the Channel In standby status, short press the PF1 or PF2 to switch the channel. You will hear and check the current channel number. 5. CTCSS/DCS Code 260 sets of CTCSS/DCS codes in total. You can set 50 sets of CTCSS codes and 105*2 sets (N-phase and I-phase) DCS codes in the software. 6. Battery Low Alert It reminds you that the battery needs recharging. The charging prompt will sound, and the red LED will blink. And now, transmitting and staying in standby and receiving mode is banned. Please recharge a new battery or charge the battery. 7. Squelch The purpose of the Squelch is to decide the signal strength when turning on the radio speaker. The lower the Squelch, the back noise is higher, and the communication range is extended, the weaker the anti-interference capability. You can choose the 0-9 squelch level in the software. The default squelch level is 3. 8. VOX VOX vice icon when the VOX feature is on. The walkie-talkie microphone detects sound input large enough, and the walkie-talkie will automatically start the launch and exit launch mode after stopping speaking. 8.1 The VOX function can be set up with programming software. (Menu check is always open, default off) 8.2 You can also turn on/off the VOX by PF1/PF2 button. Defined the PF1/PF2 button is the VOX function in the software. (Default PF1) Long press PF1 to turn on or off the VOX function Long press PF1 button repeatedly to adjust the VOX level (1-9 levels optional, level 9 is the most sensitive and default level 3) 9. VOX delay Defined the PF1/PF2 button is the VOX delay function in the software. Long press the PF1/PF2 button repeatedly to adjust the VOX delay level. (Level 1-6 optional and delay 0.5-3 seconds) 10. Monitor Defined the PF1/PF2 button is the Monitor function in the software. Long press PF1/PF2 to turn on the monitor, and release to turn off the monitor. 11. Flashlight Defined the PF1/PF2 button is a flashlight function in the software. Long press PF1/PF2 to turn on the flashlight, and repeat to turn off the flashlight. 12. Emergency Alarm function Defined the local emergency alarm or remote emergency alarm function in the software. Defined the PF1/PF2 button is an emergency alarm function in the software. Long press PF1/PF2 to turn on the emergency alarm function, and…

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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 Email: [email protected] Tel: +86-755-23481953 CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 04/14/2023 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2A3OORB89 Shenzhen Ysair Technology Co., LTD certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Signature Contact Person: Title: Manager Company Name & Address: Shenzhen Ysair Technology Co., LTD & 6/F, building 6, Yunli intelligent park, No. 3, Changfa, Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen, Guangdong China DongfangShen

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 Email: [email protected] Tel: +86-755-23481953 CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 04/14/2023 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2A3OORB89 Shenzhen Ysair Technology Co., LTD certifies that as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Signature Contact Person: Title: Manager Company Name & Address: Shenzhen Ysair Technology Co., LTD & 6/F, building 6, Yunli intelligent park, No. 3, Changfa, Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen, Guangdong China DongfangShen

U.S.AGENTLETTEROFATTESTATION Date:2023-04-14 FEDERALCOMMUNICATIONSCOMMISSION AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 FCCID:2A3OORB89 ShenzhenYsairTechnologyCo.,LTDcertifiesthat,asofthedateofthefilingofthe application, RETEVISINC. isourdesignatedU.S.agentforserviceofprocessfortheabove referencedFCCID.ShenzhenYsairTechnologyCo.,LTDacceptstomaintainanagentfor nolessthanoneyearafterthegranteehasterminatedallmarketingandimportationorthe conclusionofanyCommission-relatedproceedinginvolvingtheequipment. RETEVISINC.accepts,asofthedateofthefilingoftheapplication,theobligationofthe designatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentInformation: Name:RETEVISINC.. Address:1733EBROOKPORTST,COVINA,CA91724 FRN:0033657701 Tel.:+1 （ 626 ） 3622594 Email:[email protected] Signedby(printedname): LIUYELI Signature: Applicant:ShenzhenYsairTechnologyCo.,LTD Address:6/F,building6,Yunliintelligentpark,No.3,Changfa,MiddleRoad,Yangmei community,Bantianstreet,LonggangDistrict,Shenzhen,GuangdongChina FRN:0031641426 Tel:+86-755-23481953 Email:[email protected] Signedby(printedname): Signature: Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing DongfangShen

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 Email: [email protected] Tel: +86-755-23481953 QA-FR-170-B7/29/2014 FCC Authorization Date: 2022-12-27 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We Shenzhen Ysair Technology Co., LTD, the undersigned, hereby authorizes Shenzhen Accurate Technology Co., Ltd. to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Shenzhen Accurate Technology Co., Ltd. on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Manager DongfangShen

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 Email: [email protected] Tel: +86-755-23481953 FCC Confidential Authorization Date: 2023-01-05 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID:2A3OORB89 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shenzhen Ysair Technology Co., LTD hereby requests long-term confidential treatment of information accompanying this application as outlined below: Block Diagram Schematics Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: Manager  Parts Lists and Tune-Up information DongfangShen

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF External Photos Page 1 of 8 External Photos Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF External Photos Page 2 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF External Photos Page 3 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF External Photos Page 4 of 8 Charger Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF External Photos Page 5 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF External Photos Page 6 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF External Photos Page 7 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF External Photos Page 8 of 8

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF LABEL AND LOCATION Page 1 of 1 FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Internal Photos Page 1 of 8 Internal photos Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Internal Photos Page 2 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Internal Photos Page 3 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Internal Photos Page 4 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Internal Photos Page 5 of 8 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Internal Photos Page 6 of 8 GMRS ANT Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Internal Photos Page 7 of 8 Charger BT ANT Nouse Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Internal Photos Page 8 of 8

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. Shenzhen Accurate Technology Co., Ltd. is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 59 2021-11-09 Page 1 of 20 FCC-EMC TEST REPORT Applicant 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 Report Number: RA221110-53086E-RF-00A FCC ID: 2A3OORB89 Te s t St a n d a r d s : FCC Part 15, Subpart B (Class B) Sample Description Product Type: Two Way Radio Model No.: RB89 Multiple Model: N/A Tr a d e M a r k : RETEVIS Date Received: 2022/11/10 Report Date: 2023/01/10 Te s t Re s u l t : Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Nick Fang Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: RA221110-53086E-RF-00A Version 59 2021-11-09 Page 2 of 20 FCC-EMC TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 3 GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 JUSTIFICATION ............................................................................................................................................................. 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 SPECIAL ACCESSORIES ................................................................................................................................................. 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 6 BLOCK DIAGRAM OF RADIATED TEST SETUP ............................................................................................................... 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 FCC §15.107 – CONDUCTED EMISSIONS ............................................................................................................ 10 APPLICABLE STANDARD ............................................................................................................................................ 10 EUT SETUP ................................................................................................................................................................ 10 EMI TEST RECEIVER SETUP ....................................................................................................................................... 10 TEST PROCEDURE ...................................................................................................................................................... 11 FACTOR & OVER LIMIT CALCULATION ...................................................................................................................... 11 TEST DATA ................................................................................................................................................................ 11 FCC §15.109 - RADIATED EMISSIONS ................................................................................................................. 14 APPLICABLE STANDARD ............................................................................................................................................ 14 EUT SETUP ..................................................................................................................................…

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Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Test Photos Page 1 of 2 Photo of Conducted Emission Measurement Shenzhen Accurate Technology Co., Ltd. Project No.: RA221110-53086E-RF Test Photos Page 2 of 2 Photo of Radiated Emission Measurement (Below 1G) Photo of Radiated Emission Measurement (Above 1G)