2BO38-SC58X-HRadio Walkie Talkie

SC582 Digital Portable Radio User Manual UserManual Contents i Contents DocumentationInformation..........................................................................................................................1 1.PackingList................................................................................................................................................2 2.ProductLayout...........................................................................................................................................3 3.BeforeUse..................................................................................................................................................4 3.1ChargetheBattery.................................................................................................................................4 3.2AttachtheAntenna.................................................................................................................................4 3.3AttachtheBeltClip.................................................................................................................................4 3.4AttachtheBattery...................................................................................................................................5 3.5AttachtheAudioAccessory...................................................................................................................5 4.BasicOperations.......................................................................................................................................7 4.1TurnOnorOfftheRadio.......................................................................................................................7 4.2AdjusttheVolume..................................................................................................................................7 4.3SelectaZone.........................................................................................................................................7 4.4SelectaChannel....................................................................................................................................7 5.LEDIndications..........................................................................................................................................8 6.CallServices...............................................................................................................................................9 6.1CallonDigitalChannel..........................................................................................................................9 6.1.1MakeaCall..................................................................................................................................9 6.1.2AnsweraCall...............................................................................................................................9 6.1.3EndaCall....................................................................................................................................9 6.2CallonAnalogChannel.........................................................................................................................9 6.2.1CallWithoutSignaling.................................................................................................................9 6.2.2CallwithSignaling.....................................................................................................................10 7.SafetyandSecurity.................................................................................................................................11 7.1Emergency...........................................................................................................................................11 7.1.1MakeanEmergencyCall..........................................................................................................11 7.1.2ReceiveanEmergencyCall......................................................................................................11 7.1.3EndanEmergencyCall.............................................................................................................12 7.2LoneWorker.........................................................................................................................................12 7.3Encryption............................................................................................................................................12 7.3.1EnableEncryption.....................................................................................................................12 7.3.2SetEncryption...........................................................................................................................12 8.BasicSettings..........................................................................................................................................14 8.1AudioSettings......................................................................................................................................14 8.1.1SwitchtheAudioRouting..........................................................................................................14 8.1.2EnableAI-basedNoiseCancellation.........................................................................................14 8.2Positioning............................................................................................................................................14 Contents UserManual ii 8.2.1GPSReport...............................................................................................................................15 8.3BT.........................................................................................................................................................15 8.3.1EnableBT.................................................................................................................…

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Page1of43 SARTestReport ReportNo.:AGC16507250302FH01A FCCID: 2BO38-SC58X-H PRODUCTDESIGNATION: RadioWalkieTalkie BRANDNAME: StellarWavez MODELNAME: SC582-H APPLICANT: StellarWavezCommunicationsLLC DATEOFISSUE: Aug.26,2025 STANDARD(S): IEEEStd.1528:2013 FCC47CFRPart2§2.1093 IEEEStdC95.1™-2019 REPORTVERSION: V1.0 AttestationofGlobalCompliance(Shenzhen)Co.,Ltd. ReportNo.:AGC16507250302FH01A Page 2 of 43 ReportReviseRecord ReportVersionReviseTimeIssuedDateValidVersionNotes V1.0/Aug.26,2025ValidInitialRelease Note:TheoriginaltestreportAGC16507250302FH01(datedMay06,2025andtestedonApr.07,2025)was modifiedonAug.26,2025,includingthefollowingchangesandadditions: -Addeddataofhighpower. -ThebrandnamehasbeenupdatedfromTSTtoStellarWavez. -ThemodelnamehasbeenupdatedfromSC582toSC582-H. -TheFCCIDhasbeenchangedfrom2BO38-SC582to2BO38-SC58X-H. -Theinformationoftheapplicant’scompanyaddress,aswellasthemanufactureraddress,hasbeenupdated inthereport. -Updatedthefactoryinformationandfactoryaddressinthereport. Thisrevisionaddressestheabove-mentionedchangesandincludestheadditionofhigh-powertestdata. ReportNo.:AGC16507250302FH01A Page 3 of 43 TestReport ApplicantNameStellarWavezCommunicationsLLC ApplicantAddress17595HarvardAveSuiteC#4050,Irvine,CA92614 ManufacturerNameTSTTechnologyCo.,Ltd ManufacturerAddress9F-7,No.2,Jian8thSt.,ZhongheDist.,235NewTaipeiCity,Taiwan FactoryNameGWANKUENTECHNOLOGYCO.,LTD. FactoryAddressNo.105,LiyeRd.,ZhongheDist.,NewTaipeiCity235024,Taiwan ProductDesignationRadioWalkieTalkie BrandNameStellarWavez TestModelSC582-H SeriesModelN/A DeclarationofDifferenceN/A EUTVoltageDC7.2V ApplicableStandard IEEEStd.1528:2013 FCC47CFRPart2§2.1093 IEEEStdC95.1™-2019 DateofreceiptoftestitemAug.12,2025 TestDateAug.19,2025 ReportTemplateAGCRT-US-PTT/SAR(2021-04-20) Note:Theresultsoftestinginthisreportapplytotheproduct/systemwhichwastestedonly. PreparedBy TheaHuang(ProjectEngineer)Aug.26,2025 ReviewedBy JackGui(Reviewer)Aug.26,2025 ApprovedBy AngelaLi(AuthorizedOfficer)Aug.26,2025 ReportNo.:AGC16507250302FH01A Page 4 of 43 TABLEOFCONTENTS 1.SUMMARYOFMAXIMUMSARVALUE...........................................................................................................5 2.GENERALINFORMATION................................................................................................................................6 2.1.EUTDESCRIPTION..........................................................................................................................................6 3.SARMEASUREMENTSYSTEM.........................................................................................................................7 3.1.THEDASY5SYSTEMUSEDFORPERFORMINGCOMPLIANCETESTSCONSISTSOFFOLLOWINGITEMS....................7 3.2.DASY5E-FIELDPROBE..................................................................................................................................8 3.3.DATAACQUISITIONELECTRONICSDESCRIPTION.................................................................................................8 3.4.ROBOT...........................................................................................................................................................9 3.5.LIGHTBEAMUNIT............................................................................................................................................9 3.6.DEVICEHOLDER............................................................................................................................................10 3.7.MEASUREMENTSERVER................................................................................................................................10 3.8.PHANTOM..................................................................................................................................................11 4.SARMEASUREMENTPROCEDURE.............................................................................................................12 4.1.SPECIFICABSORPTIONRATE(SAR)...............................................................................................................12 4.2.SARMEASUREMENTPROCEDURE.................................................................................................................13 5.TISSUESIMULATINGLIQUID.........................................................................................................................15 5.1.THECOMPOSITIONOFTHETISSUESIMULATINGLIQUID.....................................................................................15 5.2.TISSUEDIELECTRICPARAMETERSFORHEADANDBODYPHANTOMS...............................................................15 5.3.TISSUECALIBRATIONRESULT.........................................................................................................................16 6.SARSYSTEMCHECKPROCEDURE.............................................................................................................17 6.1.SARSYSTEMCHECKPROCEDURES..............................................................................................................17 7.EUTTESTPOSITION.......................................................................................................................................19 7.1.BODYWORNPOSITION..................................................................................................................................19 8.SAREXPOSURELIMITS.................................................................................................................................20 9.TESTFACILITY................................................................................................................................................21 10.TESTEQUIPMENTLIST................................................................................................................................22 11.MEASUREMENTUNCERTAINTY..................................................................................................................23 12.POWER…

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ReportNo.:AGC16507250302FH01A Page 1 of 2 APPENDIXC.TESTSETUPPHOTOGRAPHS FaceUpwith2.5cmSeparationDistance. BodyBackTouchwithallaccessories ThethicknessofEUTis3.5cm 25mm ReportNo.:AGC16507250302FH01A Page 2 of 2 DEPTHOFTHELIQUIDINTHEPHANTOM—ZOOMIN Note：ThepositionusedinthemeasurementwasaccordingtoIEEE1528-2013 450MHzflatphantom

Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 24 of 37 Set Up Photo of Radiated Emission EMI Mode 1 Below 1GHz Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 25 of 37 Above 1GHz Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 26 of 37 Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 27 of 37 Mode 2 Below 1GHz Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 28 of 37 Above 1GHz Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 29 of 37 Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 30 of 37 Mode 3 Below 1GHz Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 31 of 37 Above 1GHz Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 32 of 37 Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 33 of 37 Part 90 Below 1GHz Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 34 of 37 Above 1GHz Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 35 of 37 Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 36 of 37 Set Up Photo of Conducted Emission Mode 1 Registration number: W6R22506-24504-FCC FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 37 of 37 Mode 3

ATP6-9-4 400-470MHz radiation pattern UHF Azimuth gain pattern: UHF Elevation pattern Specifications ModelATP6-9-4 FrequencyRange-MHz400-470MHz Bandwidth-MHz 70 VSWR≤4.5 Impedance-Ω50 PolarizationVertical MaximumPower-W10 ConnectorSMA Gain -8dBi Specifications ModelATP6-20-1 FrequencyRange-MHz136-174MHz Bandwidth-MHz 38 VSWRVHF：≤4.5/GPS:≤2.5 Impedance-Ω50 PolarizationVertical MaximumPower-W10 Connector SMA Gain -8dBi

Operator: Temperature:23.1 °C File :POWERData :#2Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 09:39:48 Condition : EUT : M/N: Note : TX 469.9875MHz FCC_part 90 POWER-33db W6M22411-23912 Test Mode : Polarization: Horizontal Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *469.986512.47-15.6833.00-20.53peak28.15150200 *:Maximum data x:Over limit !:over margin

Operator: Temperature:23.1 °C File :1Data :#1Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 04:22:05 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Horizontal Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *36.8136-66.98-90.46-20.00-46.98peak23.48150110 89.6192-67.49-89.52-20.00-47.49peak22.03150210 *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :1Data :#2Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 04:28:19 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Vertical Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *101.5431-67.80-89.75-20.00-47.80peak21.95150100 169.6794-68.03-89.97-20.00-48.03peak21.94150250 *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :2Data :#1Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 09:12:25 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Horizontal Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment 434.0681-70.27-61.20-20.00-50.27peak-9.07150310 *921.4430-64.65-62.20-20.00-44.65peak-2.45150200 *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :2Data :#2Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 09:14:06 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Vertical Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *368.3367-54.70-43.44-20.00-34.70peak-11.26150220 921.4430-56.22-53.57-20.00-36.22peak-2.65150170 *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :3Data :#1Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 04:41:39 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Horizontal Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *1378.757-46.33-49.91-20.00-26.33peak3.58150210 2418.838-55.97-57.39-20.00-35.97peak1.42150300 *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :3Data :#4Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 04:49:41 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Vertical Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *1378.757-48.18-51.67-20.00-28.18peak3.49150200 2418.838-53.51-60.02-20.00-33.51peak6.51150310 *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :3Data :#2Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 04:43:07 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Horizontal Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :3Data :#5Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 04:51:53 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Vertical Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :3Data :#3Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 10:04:50 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Horizontal Distance: 3m 7.2Vd.c. Power : Mk. Frequency (MHz) Reading (dBm) Corr. factor (dB) Result (dBm) Limit (dBm) Margin (dB) Ant.Pos (cm) Tab.Pos (deg.) Detector Site : 966A Chamber Comment *:Maximum data x:Over limit !:over margin Operator: Temperature:23.1 °C File :3Data :#6Date: 2025/3/21 Radiated Emission Measurement Address:No.99,Sec.1,Balian Rd.,Xizhi Dist.,New Taipei City Rick Tel:+886-2-2646-1508 Fax:+886-2-2646-1533 Humidity:51.5 % Time: 下午 10:09:37 Condition : EUT : M/N: Note : TX 460MHz FCC_part 90 RE W6M22411-23912 Test Mode : Polarization: Vertical Distance: 3m 7.2Vd.…

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of Applicant: Stellar Wavez Communications LLC Address: 17595 Harvard Ave Suite C #4050, Irvine, CA 92614 Tested and Prepared by Worldwide Testing Services (Taiwan) Co., Ltd. FCC Registration No.: TW1072, TW1140, TW1146, TW1477, TW0037 Industry Canada filed test laboratory Reg. No.: 20037, 31634 Report No.: W6R22506-24504-C-2 6F, NO. 58, LANE 188, RUEY-KUANG RD., NEIHU TAIPEI 114, TAIWAN, R.O.C. TEL: 886-2-66068877 FAX: 886-2-66068879 E- mail: [email protected] 47 CFR PART 15 SUBPART 90 TEST REPORT for Radio Walkie Talkie Model No.: SC582-H FCC ID: 2BO38-SC58X-H R egistration number: W6R22506-24504-C-2 FCC ID: 2BO38-SC58X-H Worldwide Testing Services(Taiwan) Co., Ltd. Page 1 of 46 TABLE OF CONTENTS 1.GENERAL INFORMATION .................................................................................................... 3 1.1 N OTES .......................................................................................................................................... 3 1.2 TESTING LABORATORY ................................................................................................................ 4 1.2.1 Location .............................................................................................................................. 4 1.2.2 Details of accreditation status ............................................................................................ 4 1.3 D ETAILS OF APPROVAL HOLDER ................................................................................................... 5 1.4 APPLICATION DETAILS ................................................................................................................. 5 1.5 G ENERAL INFORMATION OF TEST ITEM ........................................................................................ 5 1.6 T EST STANDARDS ......................................................................................................................... 6 2.TECHNICAL TEST ................................................................................................................... 7 2.1 SUMMARY OF TEST RESULTS ........................................................................................................ 7 2.2 T EST ENVIRONMENT .................................................................................................................... 7 2.3 D ESCRIPTION OF TESTED SYSTEM ................................................................................................ 8 2.4 TEST EQUIPMENT LIST ................................................................................................................. 9 2.5 GENERAL TEST PROCEDURE ...................................................................................................... 10 3.TEST RESULTS (ENCLOSURE) .......................................................................................... 11 4.M ODULATION CHARACTERISTICS ................................................................................ 12 4.1 T EST PROCEDURE ....................................................................................................................... 12 4.2 TEST SETUP ............................................................................................................................... 12 4.3 TEST RESULTS ............................................................................................................................ 13 4.3.1 Audio Frequency Response ............................................................................................... 13 4.3.3 Necessary Bandwidth ........................................................................................................ 13 5.FREQUENCY STABILITY .................................................................................................... 17 5.1 TEST PROCEDURES ..................................................................................................................... 17 5.2 TEST SETUP ............................................................................................................................... 17 5.3 T EST RESULT ............................................................................................................................. 18 6.TRANSMITTER OUTPUT POWER ..................................................................................... 21 6.1 T EST PROCEDURES ..................................................................................................................... 21 6.2 TEST SETUP ............................................................................................................................... 21 6.3 T EST RESULT ............................................................................................................................. 22 6.3.1 Conducted Power .............................................................................................................. 22 7.EMISSION MASKS ................................................................................................................. 26 7.1 TEST PROCEDURES ..................................................................................................................... 26 7.2 TEST SETUP ............................................................................................................................... 26 7.3 T EST RESULT ............................................................................................................................. 26 8.TRANSMITTER SPURIOUS RADIATED EMISSION ...................................................... 30 8.1 T EST PROCEDURES ..................................................................................................................... 30 8.2 TEST SETUP ............................................................................................................................... 30 8.3 T EST RESULT .........................................................................................…

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Page1of18 CALIBRATIONDATA PROBECALIBRATION DATA Page2of18 Page3of18 Page4of18 Page5of18 Page6of18 Page7of18 Page8of18 Page9of18 Page10of18 DAECALIBRATIONDATA Page11of18 Page12of18 Page13of18 DIPOLECALIBRATION DATA Page14of18 Page15of18 Page16of18 Page17of18 Page18of18

Grantee also Agent for Service of Process_FCC_Attestation Statements_Kiwa Page 1 of 2 RF_754_02 15-02-2023 Stellar Wavez Communications LLC 17595 Harvard Ave. Suite C #4050, Irvine, California, U.S.A. U.S. Agent Designation for Service of Process (Applicant is Both Grantee and U.S. Agent) TO: Kiwa Nederland B.V. Wilmersdorf 50 7327 AC Apeldoorn Postbus 137 7300 AC Apeldoorn Netherlands ATTENTION: FCC Certification – Section 2.911(d)(7) Information This letter is to confirm that the Applicant will also serve as the U.S. Agent for Service of Process as required by 47 CFR 2.911(d)(7). The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The Applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information changes. Applicant & Agent Company name: Stellar Wavez Communications LLC FRN: 0036981751 Grantee Code: 2BO38 Contact person name: Morne Stramrood Agent name: Stellar Wavez Communications LLC Street address: 17595 Harvard Ave. Suite C #4050, Irvine, ZIP/City/State California, U.S.A. Telephone number: +001 949 346 8984 Email address: [email protected] Signature Contact person*: Date: 2025/08/26 Signature Agent*: Date: 2025/08/26 Note *Must be signed by both the applicant, and agent on behalf.

Report No.: AGC16507250302FH01 Page 30 of 38 13.1.4. SAR Test Results Summary UHF(High Power) SAR MEASUREMENT Depth of Liquid (cm):>15 Relative Humidity (%): 53.2 Product: Radio Walkie Talkie Test Mode: Hold to Face with 2.5 cm separation & body back touch with all accessories Position Freq. (MHz) Separa tion (KHz) Power Drift (±0.2dB) SAR 1g with 100% duty Cycle (W/kg) SAR 1g with 50% duty cycle (W/kg) Max. Tune-up Power (dBm) Meas. output Power (dBm) Scaled SAR (W/kg) Limit W/kg 450.0125-469.9875MHz Face Up 460 12.5 0.03 0.317 0.1585 31.7 30.63 0.204 8.0 Back Touch +Belt Clip + headset 450.0125 0.10 0.465 0.2325 31.7 30.10 0.344 8.0 Back Touch +Belt Clip + headset 460 -0.08 0.453 0.2265 31.7 30.63 0.295 8.0 Back Touch +Belt Clip + headset 469.9875 -0.15 0.486 0.243 31.7 30.76 0.312 8.0 Note: 1. During the test, EUT power is 31.7dBm with 100% duty cycle; 2. There is just default battery and ante…

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