2A6DTET001Aviation radio

Thank you for purchasing the Wouxun KG-S74A portable aviation radio. Your feedback makes our products better. Please share your thoughts. [email protected] www.buytwowayradios.com 2 Contents Safety Information ������������������������������������������������������������������������������������8 FCC Licensing Information .........................................................................12 Getting Started ���������������������������������������������������������������������������������������13 Feature Summary ..........................................................................................13 What’s Included ...........................................................................................14 Front Panel Guide ........................................................................................15 Right / Left Side Guide ...............................................................................16 Display Guide ...............................................................................................17 Dust and Water Protection ...........................................................................18 Installing and Removing the Battery ............................................................19 Charging the Battery ....................................................................................19 Antenna Information ....................................................................................21 Installing the Belt Clip .................................................................................22 Operation �����������������������������������������������������������������������������������������������23 3 Introducing the KG-S74A ............................................................................23 Your First Transmit .......................................................................................24 Channel and Frequency Modes ....................................................................25 Channels .......................................................................................................26 Channel Scan ................................................................................................27 Priority Channel Scan ..................................................................................28 NOAA Weather Mode .................................................................................29 Keypad Hotkeys ..........................................................................................31 Key Lock ......................................................................................................33 Keypad Function Keys ................................................................................34 Programmable Key Functions .....................................................................34 Stopwatch Timer ..........................................................................................38 Menu Functions �������������������������������������������������������������������������������������39 [01: SQUELCH] Squelch ............................................................................39 4 [02: MODE] Work Mode ............................................................................39 [03: STEP] Frequency Step ..........................................................................40 [04: CH-ADD] Add Memory Channel .......................................................40 [05: CH-DEL] Delete Memory Channel ....................................................40 [06: CH-NAME] Channel Name ................................................................41 [07: BACK-LT] Backlight Timout ..............................................................41 [08: VOX] Voice Activated Transmit ............................................................42 [09: SCAN-ADD] Scan Add / Delete .........................................................42 [10: SCANMODE] Scan Mode ..................................................................42 [11: PRI-SCAN] Priority Scan ....................................................................43 [12: PRI-CH] Priority Channel ...................................................................44 [13: WX-ALERT] Weather Alert ................................................................44 [14: WX-NOTIFY ] Weather Alert Notification Setting ............................44 [15: BAT-SAVE] Battery Saver....................................................................45 5 [16: VOX-DLY ] VOX Delay .......................................................................45 [17: TOT] Transmit Overtime Timer ..........................................................46 [18: TOA] Transmit Overtime Alarm ..........................................................46 [19: BEEP] Button Beeps .............................................................................46 [20: VOICE] Voice Guide ............................................................................47 [21: BUSYLOCK] Busy Channel Lockout ..................................................47 [22: STARTUP] Power On Message ...........................................................47 [23: ST-MSG] Custom Power On Message ................................................48 [24: TIMER] Stopwatch Timer ...................................................................48 [25: AUTOLOCK] Auto Lock ...................................................................49 [26: LOCKMODE] Lock Mode .................................................................49 [27: PF1-SHRT] Side Key PF1 Short Press Assignment ............................50 [28: PF1-LONG] Side Key PF1 Long Press Assignment ...........................50 [29: PF2-SHRT] Side Key PF2 Short Press Assignment ............................50 6 [30: PF2-LONG] Side Key PF2 Long Press Assignment ...........................51 [31: TOP-SHRT] Top Key Short Press Assignment ...................................51 [32: TOP-LONG]…

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EVOTEINTERNATIONALLIMITED Add:FLAT/RMA12/FZJ300300LOCKHARTROADWANCHAI HONGKONG Tel:0085269146015 Email:[email protected] DECLARATIONOFSIMILARITY DearSirorMadam: We,EVOTEINTERNATIONALLIMITED.,herebydeclarethattheproduct: TWOWAYRADIO(AviationRadio),FCCID:2A6DTET001,modelsas following: KG-S74APlus KG-S74AX KG-S94A KG-S94APlus KG-S94AX KG-114A KG-114APlus KG-114AX areelectricallyidenticalwiththemodel:KG-S74AwhichwastestedbyMRT Technology(Suzhou)Co.,Ltdwiththesameelectromagneticemissionsand electromagneticcompatibilitycharacteristics. Adescriptionofthedifferencesbetweenthosemodelsandthataredeclared similarareasfollows: Theyarethesimilarproductswiththesamediagramandmainboard,andjust thedifferentmodelnamesandPlasticEnclosure. . Pleasecontactmeshouldtherebeneedforanyadditionalclarificationor information. BestRegards, Signature: PrintedName:DannyChen Title:CEO

800 Independence Ave., S. W. Washington, D. C. 20591 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Dear Mr. Corey Cahill: The Federal Aviation Administration, Spectrum Engineering Services Group received the EVOTE INTERNATIONAL LIMITED notification letter of its filing with the Federal Communications Commission (FCC). The application is for certification of the KG-S74A with FCC ID: 2A6DTET001. We have completed the review process of the information submitted by EVOTE INTERNATIONAL LIMITED and concluded that we have no objection to the FCC granting certification for this equipment. If you require any additional information, please contact Mr. Jae Shin, Electronics Engineer, Spectrum Planning and International Group, at (202) 267-7365 or via e-mail [email protected]. Sincerely, Michael W. Weiler Manager, Spectrum Engineering Services cc: Danny Chen ( [email protected])

Report No.: 2209RSU003-UE 1 of 5 EUT External Photograph (1) EUT Photo (2) EUT Photo Report No.: 2209RSU003-UE 2 of 5 (3) EUT Photo (4) EUT Photo Report No.: 2209RSU003-UE 3 of 5 (5) EUT Photo (6) EUT Photo Report No.: 2209RSU003-UE 4 of 5 (7) EUT Photo (8) EUT Photo Report No.: 2209RSU003-UE 5 of 5 (9) EUT Photo (10) EUT Photo

Report No.: 2209RSU003-UE 1 of 6 EUT Internal Photograph (1) EUT Photo (2) EUT Photo Report No.: 2209RSU003-UE 2 of 6 (3) EUT Photo (4) EUT Photo Antenna Report No.: 2209RSU003-UE 3 of 6 (5) EUT Photo (6) EUT Photo Report No.: 2209RSU003-UE 4 of 6 (7) EUT Photo (8) EUT Photo Report No.: 2209RSU003-UE 5 of 6 (9) EUT Photo (10) EUT Photo Report No.: 2209RSU003-UE 6 of 6 (11) EUT Photo

© 2023 RF Exposure Lab, LLC This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. 802 N. Twin Oaks Valley Road, Suite 105 • San Marcos, CA 92069 • U.S.A. TEL (760) 471-2100 • FAX (760) 471-2121 http://www.rfexposurelab.com CERTIFICATE OF COMPLIANCE SAR EVALUATION Evote International Ltd. Dates of Test: January 18, 2023 Flat/Rm A 12/F ZJ 300 300 Test Report Number: SAR.20230105 Lockhart Road Revision C Wan Chai, Hong Kong, China Lab Designation Number: US1195 This wireless mobile and/or portable device has been shown to be compliant for localized specifi c absorption rate (SAR) for uncontrolled environment/general exposure limits specified in ANSI/IEEE Std. C95.1-1992 and had been tested in accordance with the measurement procedures specified in IEEE 1528-2013 and IEC 62209-1528:2020 (See test report). I attest to the accuracy of the data. All measurements were performed by myself or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibi lity for the completeness of these measurements and vouch for t he qualifications of all persons taking them. RF Exposure Lab, LLC certifies that no party to this application is 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. 853(a). Jay M. Moulton Vice President Testing Cert. # 2387.01 FCC ID: 2A6DTET001 Model(s): KG-S74A, KG-S74A Plus, KG-S74AX, KG-S94A, KG-S94A Plus, KG-S94AX, KG-114A, KG-114A Plus, KG-114AX Test Sample: Engineering Unit Same as Production Serial No.: V09AR0003 Equipment Type: Wireless Digital Two Way Radio Classification: Portable Transmitter Next To Face and Body TX Frequency Range: 118 – 135.995 MHz Frequency Tolerance: ± 2.5 ppm Maximum RF Output: 34.77 dBm Signal Modulation: AM Antenna: Model ANO-054 Battery: Model 1A20KG-15 Body Worn: Belt Clip Appli cation Type: Certification FCC Rule Parts: Part 2, 87D KDB Test Methodology: KDB 447498 D01 v06 Maximum SAR Value Face: 0.12 W/kg Reported Maximum SAR Value Body: 0.31 W/kg Reported Separation Distance: 0 mm for Body; 25 mm for Face Report No: SAR.20230105 © 2023 RF Exposure Lab, LLC Page 2 of 61 This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. Table of Contents 1. Introduction ........................................................................................................................... 4 SAR Definition [5] ...................................................................................................................... 5 2. SAR Measurement Setup ..................................................................................................... 6 Robotic System ......................................................................................................................... 6 System Hardware ..................................................................................................................... 6 System Electronics ................................................................................................................... 7 Probe Measurement System ..................................................................................................... 7 3. Probe and Dipole Calibration .............................................................................................. 15 4. Phantom & Simulating Tissue Specifications ...................................................................... 16 Head & Body Simulating Mixture Characterization ................................................................. 16 5. ANSI/IEEE C95.1 – 1992 RF Exposure Limits [2] ............................................................... 17 Uncontrolled Environment ....................................................................................................... 17 Controlled Environment .......................................................................................................... 17 6. Measurement Uncertainty ................................................................................................... 18 7. System Verification ............................................................................................................. 19 Tissue Verification ................................................................................................................... 19 Test System Verification ......................................................................................................... 19 8. SAR Test Data Summary .................................................................................................... 20 Procedures Used To Establish Test Signal ............................................................................. 20 Device Test Condition ............................................................................................................. 20 SAR Data Summary – Head SAR Face Measurements ......................................................... 21 SAR Data Summary – Body SAR Measurements .................................................................. 22 9. Test Equipment List ............................................................................................................ 23 10. Conclusion ...................................................................................................................... 24 11. References ...................................................................................................................... 25 Appendix A – System Verification Plots and Data ...................................................................... 26 A ppendix B – SAR Test Data Plots ............................................................................................. 28 Appendix C – SAR Test Setup Photos ....................................................................................... 31 Appendix D –…

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MRT Technology (Suzhou) Co., Ltd Report No.: 2209RSU003-U2 Phone: +86-512-66308358 Report Version: V02 Web: www.mrt-cert.com Issue Date: 2023-02-08 1 of 45 FCC ID: 2A6DTET001 Applicant: EVOTE INTERNATIONAL LIMITED Product: Aviation Radio Model No.: KG-S74A Serial Model No.: KG-S74A Plus, KG-S74AX, KG-S94A, KG-S94A Plus, KG-S94AX, KG-114A, KG-114A Plus, KG-114AX Brand Name: WOUXUN FCC Classification: Licensed Non-Broadcast Station Transmitter Held to Face FCC Rule Part(s): FCC Part 87 Subpart D Received Date: 2022-09-01 Test Date: 2022-11-14 ~ 2023-01-06 Reviewed By: Jame Yuan Approved By: Robin Wu RF MEASUREMENT REPORT The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.26. Te st results reported herein relate only to the item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: 2209RSU003-U2 2 of 45 Revision History Report No. Version Description Issue Date Note 2209RSU003-U2 V01 Initial Report 2023-02-06 Invalid 2209RSU003-U2 V02 Update frequency rang and test equipment information 2023-02-08 Valid Report No.: 2209RSU003-U2 3 of 45 CONTENTS Description Page 1. General Information ............................................................................................................... 5 1.1. Applicant ....................................................................................................................... 5 1.2. Manufacturer ................................................................................................................ 5 1.3. Testing Facility .............................................................................................................. 5 1.4. Product Information ...................................................................................................... 6 2. Test Configuration ................................................................................................................. 7 2.1. Test Mode ..................................................................................................................... 7 2.2. Test System Connection Diagram ................................................................................. 7 2.3. Applied Standards ........................................................................................................ 8 2.4. Test Environment Condition .......................................................................................... 8 3. Measuring Instrument ........................................................................................................... 9 4. Measurement Uncertainty ................................................................................................... 10 4.1. Decision Rules ............................................................................................................ 10 4.2. Measurement Uncertainty ........................................................................................... 10 5. Test Result............................................................................................................................. 11 5.1. Test Summary ............................................................................................................. 11 5.2. RF Output Power Measurement ................................................................................. 12 5.2.1. Test Limit ................................................................................................................ 12 5.2.2. Test Procedure........................................................................................................ 12 5.2.3. Test Setting ............................................................................................................. 12 5.2.4. Te s t Setup ............................................................................................................... 13 5.2.5. Te s t Result .............................................................................................................. 13 5.3. Frequency Stability Measurement ............................................................................... 14 5.3.1. Test Limit ................................................................................................................ 14 5.3.2. Test Procedure........................................................................................................ 14 5.3.3. Test Setting ............................................................................................................. 14 5.3.4. Te s t Setup ............................................................................................................... 15 5.3.5. Te s t Result .............................................................................................................. 15 5.4. Modulation Characteristics Measurement ................................................................... 16 5.4.1. Test Limit ................................................................................................................ 16 5.4.2. Te s t Procedure........................................................................................................ 16 5.4.3. Test Setting ............................................................................................................. 16 5.4.4. Test Setup ............................................................................................................... 17 5.4.5. Test Result .............................................................................................................. 17 Report No.: 2209RSU003-U2 4 of 45 5.5. Occupied Bandwidth Measurement ............................................................................ 18 …

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Report No.: 2209RSU003-U2 38 of 45 127.025MHz 0.009~0.15MHz 0.15~30MHz 30~1000MHz 1000~2000MHz 135.975MHz 0.009~0.15MHz 0.15~30MHz 30~1000MHz 1000~2000MHz Report No.: 2209RSU003-U2 39 of 45 Conducted Spurious Emission – 25kHz channel spacing 118.025MHz 0.009~0.15MHz 0.15~30MHz 30~1000MHz 1000~2000MHz 127.025MHz 0.009~0.15MHz 0.15~30MHz Report No.: 2209RSU003-U2 40 of 45 127.025MHz 30~1000MHz 1000~2000MHz 135.975MHz 0.009~0.15MHz 0.15~30MHz 30~1000MHz 1000~2000MHz Report No.: 2209RSU003-U2 41 of 45 Emission Mask – 8.33kHz channel spacing 118.025MHz 127.025MHz 135.975MHz Emission Mask – 25kHz channel spacing 118.025MHz 127.025MHz 135.975MHz Report No.: 2209RSU003-U2 42 of 45 A.6 Radiated Unwanted Emission Test Resul t Te s t S i t e WZ-AC2 Te s t Engineer Charles Zhang Test Date 2023-01-04 Te s t Mode 8.33kHz channel spacing Channel Frequency (MHz) Reading Level (dBμV) Factor (dB/m) Measure Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector Polarization 118.025 236.1 27.6 15.7 43.3 82.3 -39.0 Peak Horizontal 471.8 19.0 22.7 41.7 82.3 -40.6 Peak Horizontal 471.8 20.9 22.7 43.6 82.3 -38.7 Peak Vertical 590.2 18.3 25.1 43.4 82.3 -38.9 Peak Vertical 2360.5 51.9 -3.3 48.6 82.3 -33.7 Peak Horizontal 2477.5 51.6 -3.4 48.2 82.3 -34.1 Peak Horizontal 1769.5 54.9 -6.3 48.6 82.3 -33.7 Peak Vertical 1888.0 52.9 -6.0 46.9 82.3 -35.4 Peak Vertical 127.025 254.1 22.4 16.8 39.2 82.3 -43.1 Peak Horizontal 508.2 19.8 23.3 43.1 82.3 -39.2 Peak Horizontal 508.2 20.7 23.3 44.0 82.3 -38.3 Peak Vertical 634.8 19.2 26.1 45.3 82.3 -37.0 Peak Vertical 2413.0 52.3 -3.4 48.9 82.3 -33.4 Peak Horizontal 2666.5 54.7 -2.9 51.8 82.3 -30.5 Peak Horizontal 1523.5 57.4 -6.2 51.2 82.3 -31.1 Peak Vertical 1651.0 54.0 -6.5 47.5 82.3 -34.8 Peak Vertical 135.975 272.0 19.7 17.6 37.3 82.3 -45.0 Peak Horizontal 816.2 11.6 28.3 39.9 82.3 -42.4 Peak Horizontal 544.1 19.4 24.0 43.4 82.3 -38.9 Peak Vertical 816.2 12.3 28.3 40.6 82.3 -41.7 Peak Vertical 2584.0 52.9 -3.2 49.7 82.3 -32.6 Peak Horizontal 2855.5 52.5 -2.0 50.5 82.3 -31.8 Peak Horizontal 1496.5 57.0 -6.2 50.8 82.3 -31.5 Peak Vertical 1768.0 57.1 -6.3 50.8 82.3 -31.5 Peak Vertical Note: Measure Level (dBμV/m) = Reading Level (dBμV) + Factor (dB/m). Report No.: 2209RSU003-U2 43 of 45 Te s t S i t e WZ-AC2 Te s t Engineer Charles Zhang Test Date 2023-01-04 Te s t Mode: 25kHz channel spacing Channel Frequency (MHz) Reading Level (dBμV) Factor (dB/m) Measure Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector Polarization 118.025 236.1 27.9 15.7 43.6 82.3 -38.7 Peak Horizontal 471.8 19.2 22.7 41.9 82.3 -40.4 Peak Horizontal 471.8 21.0 22.7 43.7 82.3 -38.6 Peak Vertical 590.2 18.9 25.1 44.0 82.3 -38.3 Peak Vertical 2360.5 51.3 -3.3 48.0 82.3 -34.3 Peak Horizontal 2477.5 52.1 -3.4 48.7 82.3 -33.6 Peak Horizontal 1769.5 54.6 -6.3 48.3 82.3 -34.0 Peak Vertical 1888.0 53.5 -6.0 47.5 82.3 -34.8 Peak Vertical 127.025 254.1 22.5 16.8 39.3 82.3 -43.0 Peak Horizontal 508.2 19.9 23.3 43.2 82.3 -39.1 Peak Horizontal 508.2 20.9 23.3 44.2 82.3 -38.1 Peak Vertical 634.8 19.1 26.1 45.2 82.3 -37.1 Peak Vertical 2413.0 52.0 -3.4 48.6 82.3 -33.7 Peak Horizontal 2666.5 51.0 -2.9 48.1 82.3 -34.2 Peak Horizontal 1523.5 56.4 -6.2 50.2 82.3 -32.1 Peak Vertical 1651.0 53.3 -6.5 46.8 82.3 -35.5 Peak Vertical 135.975 272.0 19.6 17.6 37.2 82.3 -45.1 Peak Horizontal 544.1 16.3 24.0 40.3 82.3 -42.0 Peak Horizontal 544.1 19.3 24.0 43.3 82.3 -39.0 Peak Vertical 815.7 11.9 28.3 40.2 82.3 -42.1 Peak Vertical 2447.5 50.7 -3.4 47.3 82.3 -35.0 Peak Horizontal 2719.0 48.6 -2.6 46.0 82.3 -36.3 Peak Horizontal 1496.5 57.6 -6.2 51.4 82.3 -30.9 Peak Vertical 1631.5 53.9 -6.4 47.5 82.3 -34.8 Peak Vertical Note: Measure Level (dBμV/m) = Reading Level (dBμV) + Factor (dB/m). Report No.: 2209RSU003-U2 44 of 45 Appendix B - Test Setup Photograph Refer to “2209RSU003-UT” file. Report No.: 2209RSU003-U2 45 of 45 Appendix C - EUT Photograph Refer to “ 2209RSU003-UE” file. The End

Report No.: 2209RSU003-UT 1 of 2 RF Test Setup Photograph Description: Radiated Spurious Emissions Test Setup for below 1GHz Description: Radiated Spurious Emissions Test Setup for above 1GHz Report No.: 2209RSU003-UT 2 of 2 Description: Conducted Test Setup

Report No: SAR.20230105 © 2023 RF Exposure Lab, LLC Page 31 of 61 This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. Appendix C – SAR Test Setup Photos Face Test Position with 25 mm Gap Report No: SAR.20230105 © 2023 RF Exposure Lab, LLC Page 32 of 61 This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. Body Test Position Report No: SAR.20230105 © 2023 RF Exposure Lab, LLC Page 33 of 61 This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. Front of Device Report No: SAR.20230105 © 2023 RF Exposure Lab, LLC Page 34 of 61 This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. Back of Device Report No: SAR.20230105 © 2023 RF Exposure Lab, LLC Page 35 of 61 This report shall not be reproduced except in full without the written approval of RF Exposure Lab, LLC. Battery and Antenna