2BTGGR4V004-Channel Receiver

The distance between user and the Receiver product should be no less than 20cm

ZhujiangTechnology(Foshan)Co.,Ltd. CoveredEquipmentCertificationAttestationLetter 3/12/2026 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2BTGGR4V00 ZhujiangTechnology(Foshan)Co.,Ltd.certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. ZhujiangTechnology(Foshan)Co.,Ltd.certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList(asaspecificallynamed entityoranyofitssubsidiariesoraffiliates)asanentityproducing“covered”equipment. ZhujiangTechnology(Foshan)Co.,Ltd.certifiesthattheequipmentforwhich authorizationissoughtdoesnotincludecybersecurityoranti-virussoftwareproducedor providedbyKasperskyLab,Inc.oranyofitssuccessorsandassignees,including equipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsandassignees) cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446D01 CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:ChaoZhang Title:GeneralManager CompanyName:ZhujiangTechnology(Foshan)Co.,Ltd. Date:3/12/2026

Zhujiang Technology (Foshan) Co., Ltd. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BTGGR4V00 FRN of applicant:0037700739 Per section 2.911(d)(7) of the FCC rules,Zhujiang Technology (Foshan) Co., Ltd. certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Global Product Services and Consultation LLC FCC Registration Number (FRN):0033406703 Physical U.S. Company Address:328 W Palm Ave. Monrovia, CA 91016, United States Contact Person:Michael Chan Agent Email Address: [email protected] Telephone No: (626) 366-4358 The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Signed: Printed name:Chao Zhang Title:General Manager Company Name: Zhujiang Technology (Foshan) Co., Ltd. Date: 3/12/2026 Agent Signed: Signed: Printed name:Michael Chan Title:Technical Director Company Name: Global Product Services and Consultation LLC Date: 3/12/2026 SC6034081

ZhujiangTechnology(Foshan)Co.,Ltd. DATE:2026-3-12 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2BTGGR4V00 ProductName:4-ChannelReceiver RequestforConfidentiality ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and §0.459,wearerequestingtheCommissiontowithholdthefollowingattachment(s)as confidentialdocumentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofthesedocumentsmightbeharmfultoourcompanyandwouldgive competitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram OperationalDescription Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Signature: Name:ChaoZhang Title:GeneralManager

DATE:2026-3-12 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointJasonWuofGlobalUnitedTechnologyServicesCo.,Ltd.andNo. 123-128,TowerA,JinyuanBusinessBuilding,No.2,LaodongIndustrialZone,XixiangRoad, BaoanDistrict,Shenzhen,Guangdong,Chinatoactasouragentinthepreparationofthis applicationforequipmentcertification.Icertifythatsubmitteddocumentsproperlydescribe thedeviceorsystemforwhichequipmentcertificationissought.Ialsocertifythateach unitmanufactured,importedormarketed,asdefinedintheFederalCommunications Commission’sregulationswillhaveaffixedtoitalabelidenticaltothatsubmittedfor approvalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithZhujiangTechnology(Foshan)Co.,Ltd.andNo.5, Section10,YongheRoad,DayangStreet,ShundeDistrict,FoshanCity,Guangdong Province,China Signature: Name:ChaoZhang Title:GeneralManager Company:ZhujiangTechnology(Foshan)Co.,Ltd.

Page1of3 ModelNo.:BM-R4V-ESC-BS Page2of3 Page3of3

20251219 客供 21.7*20.58mm 01 彩色印刷 Adobe Illustrator CC 2018 注意：未注公差为±0.1 0.175磨砂PC+3M9448A胶 BM-R4V-ESC-BS接收机 BM-R4V-ESC-BS接收机贴纸 B-TBMR4VESCBS-01

Page1of2 ModelNo.:BM-R4V-ESC-BS Page2of2

FCC ID: 2BTGGR4V00 RF Exposure Evaluation Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. FCC ID: 2BTGGR4V00 Test Result of RF Exposure Evaluation Channel Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm2) Limit (mW/cm2) Result 2475MHz 10.70 11.75 0.0018 1.0 PASS Remark: antenna gain=-1dBi

深圳市德威玛通讯设备有限公司 第 1 页共 6 页 产品规格承认书 德威玛天线实验室 深圳研发中心 移动通信终端天线 客户名称：深圳富斯 产品名称： 天线 物料编码： E-0ANT-300814-0030- CP65 承制方日期：2024年09月24日 射频结构审核品质 陈裕松 地址:深圳市宝安创业二路23区友谊大厦一栋3楼 （地铁洪浪北B出口平安银行后面） 电话:0755-278857390755-27885839-800 客户方日期：年月日 结论确认人审核人 高鑫 深圳市德威玛通讯设备有限公司 第 2 页共 6 页 1.目的 对于深圳市德威玛通讯设备有限公司出品的移动通信终端天线产品规格、测试方法进行规范， 避免因测试条件，方法的不同引起误差。 2.产品类别和产品型号概述 2.1类别 此移动通信终端天线为Tinned copper天线 2.2产品型号概述 这份报告主要概述的是天线 项目所设计的天线的电气结果。 此天线设计频段为:240 0~2500MHz 频段。 3.技术指标与仪器设备 3.1技术指标 产品电气性能指标 工作频率范围2400~2500MHz 驻波比2400~2500MHz<2.0 天线增益 2400~2500MHz:-1dBi 辐射效率2400~2500MHz>60% 阻抗50ohm 产品材料说明 铜 + 产品环境说明 工作温度-30 ̊C~+85 ̊C 储藏温度-30 ̊C~+85 ̊C 深圳市德威玛通讯设备有限公司 第 3 页共 6 页 3.2仪器设备 4.匹配电路说明: 我司没有对天线的匹配电路做修改 Antenna E3E1 ElementValueVender E1(0402) E2(0402) E3(0402) RFModule E2 深圳市德威玛通讯设备有限公司 第 4 页共 6 页 5.天线电气性能参数（驻波比，增益，效率，方向图） 驻波比 （VSWR) 效率与增益 （Efficien cyand Gain) Frequen cy/Mhz MaxGain /dBi Efficienc y/% 2400.00-1.0069.27 2410.00-1.1672.78 2420.00-1.3874.25 2430.00-1.6574.34 2440.00-1.9476.89 2450.00-1.8375.67 2460.00-1.7574.06 2470.00-1.6775.48 2480.00-1.4074.55 2490.00-1.2975.35 2500.00-1.1973.55 深圳市德威玛通讯设备有限公司 第 5 页共 6 页 PHi90°面 方向图 Theta90° 面方向图 3D方向图 （3D Pattern) 深圳市德威玛通讯设备有限公司 第 6 页共 6 页

Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 1 of 11 AppendixA: 20dB Emission Bandwidth Test Result TestMode Antenna Frequency[MHz] 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict TX Ant1 2408 0.561 2407.721 2408.282 --- --- TX Ant1 2440 0.561 2439.730 2440.291 --- --- TX Ant1 2475 0.564 2474.721 2475.285 --- --- Test Graphs TX-Ant1-2408 TX-Ant1-2440 TX-Ant1-2475 Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 2 of 11 AppendixB: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict TX Ant1 2408 0.54639 2407.7278 2408.2742 --- --- TX Ant1 2440 0.54129 2439.7359 2440.2772 --- --- TX Ant1 2475 0.54634 2474.7289 2475.2752 --- --- Test Graphs TX-Ant1-2408 TX-Ant1-2440 TX-Ant1-2475 Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 3 of 11 AppendixC: Maximum conducted output power Test Result TestMode Antenna Frequency[MHz] Result[dBm] Limit[dBm] Verdict TX Ant1 2408 9.56 ≤20.97 PASS TX Ant1 2440 10.09 ≤20.97 PASS TX Ant1 2475 10.70 ≤20.97 PASS Test Graphs TX-Ant1-2408-PASS TX-Ant1-2440-PASS TX-Ant1-2475-PASS Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 4 of 11 AppendixD: Carrier frequency separation Test Result TestMode Antenna Frequency[MHz] Result[MHz] Limit[MHz] Verdict TX Ant1 Hop_2408 4.000 ≥0.561 PASS TX Ant1 Hop_2440 4.000 ≥0.561 PASS TX Ant1 Hop_2475 10.998 ≥0.564 PASS Test Graphs TX-Ant1-Hop_2408-PASS TX-Ant1-Hop_2440-PASS TX-Ant1-Hop_2475-PASS Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 5 of 11 AppendixE: Time of occupancy Test Result TestMode Antenna Frequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict TX Ant1 Hop_2408 0.7723 8 0.006 ≤0.4 PASS TX Ant1 Hop_2440 0.7698 8 0.006 ≤0.4 PASS TX Ant1 Hop_2475 0.7732 8 0.006 ≤0.4 PASS TX-Ant1-Hop_2408-PASS TX-Ant1-Hop_2408-PASS TX-Ant1-Hop_2440-PASS TX-Ant1-Hop_2440-PASS Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 6 of 11 TX-Ant1-Hop_2475-PASS TX-Ant1-Hop_2475-PASS Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 7 of 11 AppendixF: Number of hopping channels Test Result TestMode Antenna Frequency[MHz] Result[Num] Limit[Num] Verdict TX Ant1 Hop 16 ≥15 PASS Test Graphs TX-Ant1-Hop-PASS Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 8 of 11 AppendixG:Band edge measurements Test Result TestMode Antenna ChName Frequency[MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict TX Ant1 Low 2408 9.48 -40.8 ≤-10.52 PASS TX Ant1 High 2475 10.61 -42.65 ≤-9.4 PASS TX Ant1 Low Hop_2408 10.24 -46.29 ≤-9.76 PASS TX Ant1 High Hop_2475 10.63 -46.12 ≤-9.37 PASS Test Graphs TX-Ant1-2408-PASS TX-Ant1-2475-PASS TX-Ant1-Hop_2408-PASS TX-Ant1-Hop_2475-PASS Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 9 of 11 AppendixH:Conducted Spurious Emission Test Result TestMode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict TX Ant1 2408 0~Reference 9.46 9.46 --- PASS TX Ant1 2408 30~1000 9.46 -63.16 ≤-10.54 PASS TX Ant1 2408 1000~26500 9.46 -43.16 ≤-10.54 PASS TX Ant1 2440 0~Reference 10.02 10.02 --- PASS TX Ant1 2440 30~1000 10.02 -63.24 ≤-9.98 PASS TX Ant1 2440 1000~26500 10.02 -42.92 ≤-9.98 PASS TX Ant1 2475 0~Reference 10.59 10.59 --- PASS TX Ant1 2475 30~1000 10.59 -62.04 ≤-9.41 PASS TX Ant1 2475 1000~26500 10.59 -43.87 ≤-9.41 PASS Test Graphs TX-Ant1-2408-0~Reference-PASS TX-Ant1-2408-30~1000-PASS TX-Ant1-2408-1000~26500-PASS TX-Ant1-2440-0~Reference-PASS Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 27798960 Page 10 of 11 TX-Ant1-2440-30~1000-PASS TX-Ant1-2440-1000~26500-PASS TX-Ant1-2475-0~Reference-PASS TX-Ant1-2475-30~1000-PASS TX-Ant1-2475-1000~26500-PASS Report No.:GTS2026010448F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Build…

Text truncated - open the document above for the full version.

GlobalUnitedTechnologyServicesCo.,Ltd. ReportNo.:GTS2026010448F01 AuthorizedSignature: RobinsonLuo LaboratoryManager Thisresultsshowninthistestreportreferonlytothesample(s)tested,thistestreportcannotbereproduced,exceptin full,withoutpriorwrittenpermissionofthecompany.Thereportwouldbeinvalidwithoutspecificstampoftestinstitute andthesignaturesofcompilerandapprover.Page1of38 TESTREPORT Applicant:ZhujiangTechnology(Foshan)Co.,Ltd. AddressofApplicant:No.5,Section10,YongheRoad,DayangStreet,Shunde District,FoshanCity,GuangdongProvince,China Manufacturer:ZhujiangTechnology(Foshan)Co.,Ltd. Addressof Manufacturer: No.5,Section10,YongheRoad,DayangStreet,Shunde District,FoshanCity,GuangdongProvince,China Factory:DongguanFlyskyRCModeltechnologyCo.,Ltd AddressofFactory:Westbuilding3,HuangjinyuanIndPark,QiaoliNorthGate, ChangpingTown,Dongguan,China EquipmentUnderTest(EUT) ProductName:4-ChannelReceiver ModelNo.:BM-R4V-ESC-BS TradeMark:BMHOBBY FCCID:2BTGGR4V00 Applicablestandards:FCCCFRTitle47Part15SubpartCSection15.247 Dateofsamplereceipt:January29,2026 DateofTest:January29,2026-March11,2026 Dateofreportissued:March11,2026 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. ReportNo.:GTS2026010448F01 GlobalUnitedTechnologyServicesCo.,Ltd. No.123-128,TowerA,JinyuanBusinessBuilding,No.2,LaodongIndustrialZone, XixiangRoad,BaoanDistrict,Shenzhen,Guangdong,China518102 Telephone:+86(0)75527798480Fax:+86(0)75527798960Page 2 of 38 2Version VersionNo.DateDescription 00March11,2026Original TestedBy:Date:March11,2026 TestEngineer PreparedBy:Date:March11,2026 ProjectEngineer CheckBy:Date:March11,2026 Reviewer ReportNo.:GTS2026010448F01 GlobalUnitedTechnologyServicesCo.,Ltd. No.123-128,TowerA,JinyuanBusinessBuilding,No.2,LaodongIndustrialZone, XixiangRoad,BaoanDistrict,Shenzhen,Guangdong,China518102 Telephone:+86(0)75527798480Fax:+86(0)75527798960Page 3 of 38 3Contents Page 1COVERPAGE...............................................................................................................................................................1 2VERSION........................................................................................................................................................2 3CONTENTS.....................................................................................................................................................3 4TESTSUMMARY...........................................................................................................................................4 4.1MEASUREMENTUNCERTAINTY..................................................................................................................4 5GENERALINFORMATION............................................................................................................................5 5.1GENERALDESCRIPTIONOFEUT..............................................................................................................5 5.2TESTMODE..............................................................................................................................................7 5.3TESTFACILITY.........................................................................................................................................7 5.4TESTLOCATION.......................................................................................................................................7 5.5DESCRIPTIONOFSUPPORTUNITS.............................................................................................................7 5.6DEVIATIONFROMSTANDARDS..................................................................................................................7 5.7ABNORMALITIESFROMSTANDARDCONDITIONS........................................................................................7 5.8ADDITIONALINSTRUCTIONS......................................................................................................................7 6TESTINSTRUMENTSLIST...........................................................................................................................8 7TESTRESULTSANDMEASUREMENTDATA..........................................................................................10 7.1ANTENNAREQUIREMENT.........................................................................................................................10 7.2CONDUCTEDEMISSIONS.........................................................................................................................11 7.3CONDUCTEDPEAKOUTPUTPOWER.......................................................................................................14 7.420DBEMISSIONBANDWIDTH..................................................................................................................15 7.5CARRIERFREQUENCIESSEPARATION.....................................................................................................16 7.6HOPPINGCHANNELNUMBER..................................................................................................................17 7.7DWELLTIME...........................................................................................................................................18 7.8SPURIOUSEMISSIONINNON-RESTRICTED&RESTRICTEDBANDS............................................................19 7.8.1ConductedEmissionMethod...........................................................................................................19 7.8.2RadiatedEmissionMethod..............................................................................................................20 8TESTSETUPPHOTO..................................................................................................................................38 9EUTCONSTRUCTIONALDETAILS............................................................................................................38 ReportNo.:GTS2026010448F01 GlobalUnitedTechnologyServicesCo.,Ltd…

Text truncated - open the document above for the full version.

Page1of2 ModelNo.:BM-R4V-ESC-BS RadiatedEmission Page2of2 ConductedEmission RFConductedTest