2A7ZM-SONOROG5MICSonoro G5

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: JBU GLOBAL LLC FRN: 0032680928 Contact Name: Issac Grunwald Address: 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Telephone No: 8442627464 Email: [email protected] Applicant: Company name: JBU GLOBAL LLC Product Description: Sonoro G5 Grantee code: 2A7ZM FCC ID: 2A7ZM-SONOROG5MIC Contact Name: Issac Grunwald Address: 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Telephone No: 8442627464 Email: [email protected] [JBU GLOBAL LLC] certifies that, as of the date of this filing of the application with the TCB, [JBU GLOBAL LLC] is our designated US agent for service of process for the above referenced FCC ID. [JBU GLOBAL LLC] 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 equipment. [JBU GLOBAL LLC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2023/09/12 Applicant’s Name: Issac Grunwald US Agent’s Name: Issac Grunwald Title: Chief Operations Officer Title: Chief Operations Officer Signature: Signature:

C5266091_X24_Ed.2 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: JBU GLOBAL LLC Grantee code: 2A7ZM FCC ID: 2A7ZM-SONOROG5MIC Contact Name: Issac Grunwald Address: 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Telephone No: 8442627464 Fax No: N/A Email: [email protected] i. JBU GLOBAL LLC (“the applicant”) 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. The applicant must sign this certification. ii. JBU GLOBAL LLC (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. JBU GLOBAL LLC (“the applicant”) 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 . Date: 2023/09/12 Applicant’s Name: Issac Grunwald Title: Chief Operations Officer Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

JBU GLOBAL LLC 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States DATE : 09/12/2023 JBU GLOBAL LLC 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint below company and person: Name Damon Hu Position Manager Company Name Dongguan Dongdian Testing Service Co.,Ltd. Address 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel / Fax Tel: +86-0769-38826678-850 E-Mail [email protected] to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. Applicant name JBU GLOBAL LLC Address 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Yours sincerely, Name Issac Grunwald Position Chief Operations Officer Company Name JBU GLOBAL LLC Address 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Tel / Fax 8442627464 E-Mail [email protected]

C5266091_X8_Ed.1 1/1 Letter of Authorization JBU GLOBAL LLC Company: JBU GLOBAL LLC Address: 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Product Name: Sonoro G5 Model Number: microphone FCC Identifier: 2A7ZM-SONOROG5MIC We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Issac Grunwald Date: 2023/09/12 Title: Chief Operations Officer Signature of applicant:

C5266091_X10_Ed.1 1/1 JBU GLOBAL LLC Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023/09/12 Subject: Request for Confidentiality FCC ID: 2A7ZM-SONOROG5MIC To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality ID Label/Location No No Attestation Statement No No External Photos No Block Diagram Schematics Test Report No No Test Setup Photos No User’s Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of _180_ days from the date of the Grant of Equipment Authorization and prior to marketing. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Issac Grunwald Title: Chief Operations Officer

Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23070410-2E Page 1 of 7 AppendixI: Photos of the EUT Product Name: Sonoro G5 Model Number: microphone Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23070410-2E Page 2 of 7 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23070410-2E Page 3 of 7 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23070410-2E Page 4 of 7

Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23070410-2E Page 4 of 7 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23070410-2E Page 5 of 7 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23070410-2E Page 6 of 7 Dongguan Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23070410-2E Page 7 of 7 END Antenna

Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-RE23070410-2E04 TRF No.: KDB447498 D01 Ver.1.0 Page 1 of 6 RF EXPOSURE REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : JBU GLOBAL LLC Address : 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Equipment under Test : Sonoro G5 Model No. : microphone Trade Mark : N/A FCC ID : 2A7ZM-SONOROG5MIC Manufacturer : SHENZHEN GXTSONIC TECHNOLOGY CO., LTD Address : 1F,Building 3,Tianxin Shuichan Industrial Park,Gushu Village,Xixiang Town,Bao`an District,Shenzhen,CHINA Report No.: DDT-RE23070410-2E04 Issued Date: Sep. 09, 2023 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-RE23070410-2E04 TRF No.: KDB447498 D01 Ver.1.0 Page 2 of 6 Table of Contents Test report declares.......................................................................................................3 1. General Information ....................................................................................................... 5 1.1. Description of equipment ............................................................................................... 5 1.2. Assess laboratory ........................................................................................................... 5 2. RF Exposure evaluation for FCC ................................................................................... 6 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-RE23070410-2E04 TRF No.: KDB447498 D01 Ver.1.0 Page 3 of 6 Test Report Declare Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is assessed by Dongguan Dongdian Testing Service Co., Ltd and in the configuration assessed the equipment complied with the standards specified above. The assessed results are contained in this report and Dongguan Dongdian Testing Service Co., Ltd is assumed of full responsibility for the accuracy and completeness of these assess. After evaluation, our opinion is that the equipment In Accordance with above standard. Report No: DDT-RE23070410-2E04 Date of Receipt: Aug. 16, 2023 Date of Test: Aug. 16, 2023 ~ Sep. 09, 2023 Prepared By: Approved By: ___________________ ______________________ Tiger Mo/Engineer Damon Hu/EMC Manager Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Dongguan Dongdian Testing Service Co., Ltd. Applicant : JBU GLOBAL LLC Address : 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Equipment under Test : Sonoro G5 Model No. : microphone Trade Mark : N/A Manufacturer : SHENZHEN GXTSONIC TECHNOLOGY CO., LTD Address : 1F,Building 3,Tianxin Shuichan Industrial Park,Gushu Village,Xixiang Town,Bao`an District,Shenzhen,CHINA Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-RE23070410-2E04 TRF No.: KDB447498 D01 Ver.1.0 Page 4 of 6 Revision History Rev. Revisions Issue Date Revised By --- Initial issue Sep. 09, 2023 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-RE23070410-2E04 TRF No.: KDB447498 D01 Ver.1.0 Page 5 of 6 1. General Information 1.1. Description of equipment 1.2. Assess laboratory Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808. Tel.: +86-0769-38826678, http://www.dgddt.com, Email: [email protected]. CNAS Accreditation No. L6451; A2LA Accreditation Number: 3870.01 FCC Designation Number: CN1182, Test Firm Registration Number: 540522 Innovation, Science and Economic Development Canada Site Registration Number: 10288A Conformity Assessment Body identifier: CN0048 VCCI facility registration number: C-20087, T-20088, R-20123, R-20155, G-20118 EUT Name : Sonoro G5 Model Number : microphone EUT function description : Please reference user manual of this device Power Supply : DC 5V - 1A (USB-C input), Rechargeable Lithium, 1200mAh for microphone Operation frequency : 2402 MHz - 2480 MHz Modulation : GFSK, /4-DQPSK Antenna Type : Chip antenna , maximum PK gain: 2.7dBi Sample Number : S23070410-02 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-RE23070410-2E04 TRF No.: KDB447498 D01 Ver.1.0 Page 6 of 6 2. RF Exposure evaluation for FCC According to 447498 D01 General RF Exposure Guidance v06 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison Manufacturing Tolerance BT GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -7.43 -6.57 -6.07 Tolerance ±(dB) 2 2 2 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -6.51 -5.65 -5.15 Tolerance ±(dB) 2 2 2 Estimtion Result Worse case is as below: [2480 MHz, -3.15 dBm, (0.484 mW) output power] (0.484/5) ·[√2.480(GHz)] = 0.1524< 3.0 for 1-g SAR Then SAR evaluation is not required. END OF REPORT

2.4GHz3216ChipAntenna:RANT3216F245X02 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT3216F245X02 (A)(B)(C)(D)(E)(F) ElectricalSpecification ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 3.2x1.6mm( ± 0.2mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=0X WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGain2.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280 °C ) TerminationNi/Au(Leadless) Dimension(mm) L 3.20±0.20 W 1.60±0.20 T 0.45±0.20 咏成國際科技有限公司電話:13530576606 RAINInternationalTechnologyCo.,Ltd. 7/F,BuildingF,ZhichuangPark,Tong'an,Gushu,Shenzhen  2.4GHz3216ChipAntenna:RANT3216F245X02 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ReturnLoss Frequency(MHz) S11(dB) 2400-10.50 2450-30.62 2500-11.47 Radiation X Y Z 2.4GHz3216ChipAntenna:RANT3216F245X02 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 32167”5K/Reel 9.0±0.5 60±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType3216 1.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 1.50±0.10 4.0±0.1 2.4GHz3216ChipAntenna:RANT3216F245X02 _ ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10°C/1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+85°C),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 2.4GHz3216ChipAntenna:RANT3216F245X02 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12019/03/01NewDatasheet 22020/02/22Add2Dradiationcharacteristic

Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 1 of 76 FCC CERTIFICATION TEST REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : JBU GLOBAL LLC Address : 19416 NE 26th AVE, 114B, Miami, Florida 33180, United States Equipment under Test : Sonoro G5 Model No. : microphone Trade Mark : N/A FCC ID : 2A7ZM-SONOROG5MIC Manufacturer : SHENZHEN GXTSONIC TECHNOLOGY CO., LTD Address : 1F,Building 3,Tianxin Shuichan Industrial Park,Gushu Village,Xixiang Town,Bao`an District,Shenzhen,CHINA Report No.:DDT-RE23070410-2E02 Issued Date: Sep. 09, 2023 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 2 of 76 Table of Contents Test report declares.......................................................................................................4 1.Summary of Test Results ............................................................................................... 7 2.General Test Information ............................................................................................... 8 2.1. Description of EUT ......................................................................................................... 8 2.2. Accessories of EUT ........................................................................................................ 9 2.3. Assistant equipment used for test .................................................................................. 9 2.4. Block diagram of EUT configuration for test .................................................................. 9 2.5. Deviations of test standard............................................................................................. 9 2.6. Test environment conditions .......................................................................................... 9 2.7. Test laboratory ............................................................................................................. 10 2.8. Measurement uncertainty ............................................................................................. 10 3.Equipment Used During Test ....................................................................................... 11 4.20 dB Bandwidth .......................................................................................................... 12 4.1. Block diagram of test setup .......................................................................................... 12 4.2. Limits ............................................................................................................................ 12 4.3. Test procedure ............................................................................................................. 12 4.4. Test result ..................................................................................................................... 12 4.5. Test graphs .................................................................................................................. 13 5.99% Bandwidth ............................................................................................................ 15 5.1. Block diagram of test setup .......................................................................................... 15 5.2. Limits ............................................................................................................................ 15 5.3. Test procedure ............................................................................................................. 15 5.4. Test Result ................................................................................................................... 15 5.5. Test Graphs .................................................................................................................. 16 6.Maximum Peak Output Power ..................................................................................... 18 6.1. Block diagram of test setup .......................................................................................... 18 6.2. Limits ............................................................................................................................ 18 6.3. Test procedure ............................................................................................................. 18 6.4. Test Result ................................................................................................................... 19 6.5. Test graphs .................................................................................................................. 19 7.Carrier Frequency Separation ...................................................................................... 22 7.1. Block diagram of test setup .......................................................................................... 22 7.2. Limits ............................................................................................................................ 22 7.3. Test procedure ............................................................................................................. 22 7.4. Test result ..................................................................................................................... 23 7.5. Test graphs .................................................................................................................. 23 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 3 of 76 8. Dwell Time .................................................................................................................... 24 8.1. Block diagram of test setup ..........................................................…

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Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 32 of 76 10. Band Edge Compliance (Conducted Method) 10.1. Block diagram of test setup 10.2. Limit All restriction band should comply with 15.209, other emission should be at least 20dB below the fundamental. 10.3. Test procedure (1) Connect EUT’s antenna output to spectrum analyzer by RF cable. (2) Establish a reference level by using the following procedure: RBW: 100 kHz VBW: 300 kHz Span Encompass frequency range to be measured Detector Mode: Peak Sweep time: Auto Trace mode Max hold (3) Allow the trace to stabilize, use the peak marker function to determine the maximum peak power level to establish the reference level. (4) Then mark the maximum amplitude of all unwanted emissions outside of the authorized frequency band.Appendix G: Band edge measurements Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 33 of 76 10.4. Test result Mode Freq. (MHz) Verdict GFSK Hopping off 2402 Pass Hopping off 2480 Pass Hopping on Pass /4-DQPSK Hopping off 2402 Pass Hopping off 2480 Pass Hopping on Pass 8DPSK Hopping off 2402 Pass Hopping off 2480 Pass Hopping on Pass 10.5. Test graphs DH5_Ant1_Low_2402 DH5_Ant1_High_2480 DH5_Ant1_Low_Hop_2402 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 34 of 76 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 35 of 76 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 36 of 76 11. RF Conducted Spurious Emissions 11.1. Block diagram of test setup 11.2. Limits In any 100 kHz bandwidth outside the frequency bands in which the spread spectrum intentional radiator in operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power. 11.3. Test procedure (1) Connect EUT’s antenna output to spectrum analyzer by RF cable. (2) Establish a reference level by using the following procedure: Center frequency Test frequency RBW: 100 kHz VBW: 300 kHz Span Wide enough to capture the peak level of the in- band emission Detector Mode: Peak Sweep time: Auto Trace mode Max hold (3) Allow the trace to stabilize, use the peak marker function to determine the maximum peak power level to establish the reference level. (4) Set the spectrum analyzer as follows: RBW: 100 kHz VBW: 300 kHz Span Encompass frequency range to be measured Number of measurement points ≥Span/RBW Detector Mode: Peak Sweep time: Auto Trace mode Max hold Allow the trace to stabilize, use the peak marker function to determine the maximum amplitude of all unwanted emissions outside of the authorized frequency band Appendix H: Conducted Spurious Emission Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 37 of 76 11.4. Test result Mode Freq. (MHz) Verdict GFSK Hopping off 2402 Pass Hopping off 2441 Pass Hopping off 2480 Pass /4-DQPSK Hopping off 2402 Pass Hopping off 2441 Pass Hopping off 2480 Pass 8DPSK Hopping off 2402 Pass Hopping off 2441 Pass Hopping off 2480 Pass 11.5. Test graphs DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 38 of 76 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 39 of 76 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 40 of 76 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 41 of 76 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 42 of 76 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 43 of 76 Dongguan Dongdian Testing Service Co., Ltd. Report No.:DDT-RE23070410-2E02 TRF No.: FCC Part 15C BT Ver.1.0 Page 44 of 76 12. Duty cycle 12.1. Block diagram of test setup 12.2. Limit Just for Report. 12.3. Test procedure (1) Connected the EUT’s antenna port to the Spectrum Analyzer by suitable attenuator, The cable loss and attenuator loss have been put into spectrum analyzer as amplitude offset. set the Spectrum Analyzer as below: Centre Frequency: The centre frequency of the middle hopping channel. Resolution BW: 10 MHz. Video BW: 10 MHz. Span: Zero span. Detector: Peak. Trace Mode: Clear Write. Sweep: Video Trigger (2) When the trace is complete, measure the sending time of 1 burst and the duty cycle of 1 burst cycle. (3) Calculate dwell time follow below formula: Duty cycle= Pulse’s on time / Burst cycle Appendix I: Duty Cycle 12.4. Test result Test Mode Antenna Frequency [MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] DH5 Ant1 2402 2.89 3.76 76.86 1.14 2441 2.88 3.75 76.80 1.15 2480 2.89 3.76 76.86 1.14 2DH5 Ant1 2402…

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