R56-FC3002Streaming Amplifier

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E05 TRF No.: RT-4-E-006Page 1 of 7 RF EXPOSURE REPORT Applicant : Guangzhou FIIO Electronics Technology Co., Ltd. Address of Applicant : No.21, Longliang Road, Xialiang Village, Longgui Street, Baiyun District, Guangzhou, Guangdong, P.R. China Manufacturer : Guangzhou FIIO Electronics Technology Co., Ltd. Address of Manufacturer : No.21, Longliang Road, Xialiang Village, Longgui Street, Baiyun District, Guangzhou, Guangdong, P.R. China Equipment under Test : Streaming Amplifier Model No. : F3001A, F3002A, F3003A, F3004A, F3005A FCC ID : R56-FC3002 Test Standard(s) : KDB447498 D01 General RF Exposure Guidance v06 Report No. : DDT-RE26051409-1E05 Issue Date : 2026/08/07 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E05 TRF No.: RT-4-E-006Page 2 of 7 Table of Contents 1.General Test Information..............................................................................................5 1.1.Description of EUT .......................................................................................................5 1.2.Accessories of EUT......................................................................................................5 1.3.Test laboratory .............................................................................................................5 2.RF Exposure evaluation for FCC .................................................................................6 2.1.Assessment procedure.................................................................................................6 2.2.Assess result ................................................................................................................7 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E05 TRF:RT-4-E-006Page 3 of 7 $!CeMetaLims!digital$ Test Report Declare Applicant : Guangzhou FIIO Electronics Technology Co., Ltd. Address of Applicant : No.21, Longliang Road, Xialiang Village, Longgui Street, Baiyun District, Guangzhou, Guangdong, P.R. China Equipment under Test : Streaming Amplifier Model No. : F3001A, F3002A, F3003A, F3004A, F3005A Manufacturer : Guangzhou FIIO Electronics Technology Co., Ltd. Address of Manufacturer : No.21, Longliang Road, Xialiang Village, Longgui Street, Baiyun District, Guangzhou, Guangdong, P.R. China Test Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is tested by Guangdong Dongdian Testing Service Co., Ltd. and in the configuration tested the equipment complied with the standards specified above. The test results are contained in this test report and Guangdong Dongdian Testing Service Co., Ltd. is assumed of full responsibility for the accuracy and completeness of these tests. Report No.:DDT-RE26051409-1E05 Date of Receipt:2026/05/19Date of Test:2026/05/19~2026/07/30 Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Guangdong Dongdian Testing Service Co., Ltd. Created: Zoe PengReviewed: Bobo ChenApproved: Ella Gong 2026/07/312026/08/072026/08/07 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E05 TRF:RT-4-E-006Page 4 of 7 Revision History VersionRevision ContentIssue DateApproved V0Initial issue2026/08/07Ella Gong Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E05 TRF:RT-4-E-006Page 5 of 7 1. General Test Information 1.1. Description of EUT EUT Name:Streaming Amplifier Model Number:F3001A, F3002A, F3003A, F3004A, F3005A Difference of model number: All models are identical except the appearance and model， therefore the test performed on the model F3001A EUT Function Description:Please reference user manual of this device Power Supply:DC 48V/5A from external AC/DC Adapter Note: The above EUT information is declared by manufacturer and for more detailed features description please refer to the manufacturer's specifications or User's Manual. 1.2. Accessories of EUT AccessoriesManufacturerModel numberDescription AC/DC ADAPTERMerryking ESA- 48000500AE Input: 100-240V~ 50/60Hz Output: DC 48.0V 5.0A 1.3. Test laboratory Guangdong Dongdian Testing Service Co., Ltd. Add.: Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, 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-20240, G-20118 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E05 TRF:RT-4-E-006Page 6 of 7 2. RF Exposure evaluation for FCC 2.1. Assessment procedure Requirement: Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2 m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. Limits for General Population/Uncontrolled Exposure Frequency Range （MHz） Electric Field Strength (E) (V/m) Magnetic FieldStrength (H) （A/m） Power Density (S) （mW/cm 2 ） Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.346141.63(100)*30 1.34-30824/f2.19/f(180/f)*30 30-30027.50.0730.230 300-1500 F/150030 1500-100000 1.030 Note: f= frequency in MHz; *Plane-wave equivalent power density Calculation method From the peak EUT RF output…

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1 / 4 K17 antenna specification Description Project Name R9/S15/K17 Operation Band Bluetooth / Wifi2.4G/ Wifi5G Frequency 2400MHz-2500MHz、5180-5320 MHz （W52、W53）、5500-5825MHz（W56） Antenna Type FPC Antenna Manufacturer SHENZHEN HENGXIANGTONG ANTENNA TECNOLOGY CO., LTD. Address 606, Building E, Enterprise Aviation Technology Innovation Research and Development Industrial Park, No. 1008, Songbai Road, Sunshine Community, Xili Street, Nanshan District, Shenzhen Testing Equipment VNA E5071C Chamber Guangping Chamber system Time 2023-9-14 2 / 4 1 Antenna patern 3 / 4 2 Passive data 2.1 S11 Fre(MHz) 2400 2450 2500 5150 5520 5850 Result(dB) -13 -25 -16 -10 -30 -15 2.2 Efficiency & Gain Freq Effi Effi Gain Fre(MHz) Eff(%) Eff(dB) Gain(dBi) (MHz) (%) (dB) (dBi) (MHz) (%) (dB) (dBi) 2400 77.73 -1.09 7.2 5200 45.21 -3.45 6.14 2410 84.58 -0.73 7.25 5250 46.1 -3.36 5.66 2420 85.8 -0.66 7.18 5320 58.6 -2.32 6.5 2430 79.33 -1.01 6.69 5350 53.98 -2.68 6.21 2440 91.26 -0.4 7.1 5400 45.37 -3.43 5.51 2450 78.43 -1.06 6.12 5450 46.31 -3.34 5.93 2460 87.73 -0.57 6.64 5500 54.05 -2.67 6.44 2470 70.88 -1.49 5.72 5600 59.65 -2.24 7.92 2480 80.8 -0.93 6.27 5700 62.47 -2.04 7.41 2490 68.36 -1.65 5.54 5800 76.01 -1.19 8.16 2500 76.03 -1.19 5.9 2.3 Radiation Pattern 3D pattern H-plan 4 / 4 E1-plane E2-plane

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E02 TRF: RT-4-E-005Page 1 of 93 RADIO TEST REPORT Applicant : Guangzhou FIIO Electronics Technology Co., Ltd. Address of Applicant : No.21, Longliang Road, Xialiang Village, Longgui Street, Baiyun District, Guangzhou, Guangdong, P.R. China Manufacturer : Guangzhou FIIO Electronics Technology Co., Ltd. Address of Manufacturer : No.21, Longliang Road, Xialiang Village, Longgui Street, Baiyun District, Guangzhou, Guangdong, P.R. China Equipment under Test : Streaming Amplifier Model No. : F3001A, F3002A, F3003A, F3004A, F3005A FCC ID : R56-FC3002 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, ANSI C63.10-2020+Cor.1-2023+C63.10a- 2024+Errata to C63.10a-2024 Report No. : DDT-RE26051409-1E02 Issue Date : 2026/08/17 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E02 TRF: RT-4-E-005Page 2 of 93 Table of Contents 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.Block diagram of EUT configuration for test.................................................................9 2.4.Decision of final test mode ...........................................................................................9 2.5.Deviations of test standard.........................................................................................10 2.6.Test environment conditions ......................................................................................10 2.7.Test laboratory ...........................................................................................................10 2.8.Measurement uncertainty...........................................................................................11 3.Equipment Used During Conductive Test ..................................................................12 4.6 dB Bandwidth ..........................................................................................................13 4.1.Block diagram of test setup ........................................................................................13 4.2.Limits ..........................................................................................................................13 4.3.Test procedure ...........................................................................................................13 4.4.Test result...................................................................................................................14 4.5.Test graphs ................................................................................................................15 5.99% Bandwidth ..........................................................................................................18 5.1.Block diagram of test setup ........................................................................................18 5.2.Limits ..........................................................................................................................18 5.3.Test procedure ...........................................................................................................18 5.4.Test result...................................................................................................................19 5.5.Test graphs ................................................................................................................20 6.Maximum Peak Output Power....................................................................................23 6.1.Block diagram of test setup ........................................................................................23 6.2.Limits ..........................................................................................................................23 6.3.Test procedure ...........................................................................................................23 6.4.Test result...................................................................................................................24 6.5.Test graphs ................................................................................................................25 7.Power Spectral Density ..............................................................................................28 7.1.Block diagram of test setup ........................................................................................28 7.2.Limits ..........................................................................................................................28 7.3.Test procedure ...........................................................................................................28 7.4.Test result...................................................................................................................29 7.5.Test graphs ................................................................................................................30 8.Band Edge Compliance (Conducted Method)............................................................33 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E02 TRF: RT-4-E-005Page 3 of 93 8.1.Block diagram of test setup ........................................................................................33 8.2.Limits ..........................................................................................................................33 8.3.Test pro…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E02 TRF:RT-4-E-005Page 61 of 93 TR-4-E-009 Radiated Emission Test Result Test Date:2026-07-28Tested By:Li Xiongbin Test Mode:TX BLE2M 2404MHz ModePower Supply:DC 48V Condition:Temp:19.8°C;Humi:53.2%Test Site:DDT 3# Chamber File Path:d:\ts\2026 report data\Q26051409-2E\FCC Below 1G\20260728-053829_V Memo:Sample Number:S26051409-009 Data List NO. Freq. [MHz] Reading [dBμV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 149.59744.2113.483.9829.3740.0010.63QPVertical 271.87044.929.514.1726.3040.0013.70QPVertical 3110.61740.2411.904.3624.1943.5019.31QPVertical 4231.78639.2511.955.0123.8146.0022.19QPVertical 5292.33538.0313.195.2524.0746.0021.93QPVertical 6624.69940.9618.726.4633.2346.0012.77QPVertical Note: 1. Level = Reading + Cable Loss + Antenna Factor + AMP 2. If Peak Result complies with QP limit, QP Result is deemed to comply with QP limit. 3. Test setup: 9kHz-150kHz RBW: 300Hz, VBW: 1 kHz, Sweep time: auto. 150kHz-30MHz RBW: 10kHz, VBW: 30kHz, Sweep time: auto. Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E02 TRF:RT-4-E-005Page 62 of 93 TR-4-E-009 Radiated Emission Test Result Test Date:2026-06-15Tested By:Cao Jie Test Mode:TX BLE1M 2402MHz ModePower Supply:DC 48V Condition:Temp:23.5°C;Humi:58.4%Test Site:4# Fully Anechoic Room File Path:d:\ts\2026 report date\Q26051409-1E\FCC ABOVE 1G BLE\9 Memo:Sample Number:S26051409-001 Suspected Data List NO . Freq. [MHz] Reading [dBV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 13922.50049.0931.65-40.1540.5974.0033.41PKHorizontal 24842.00049.4433.37-40.4142.4074.0031.60PKHorizontal 37273.50048.8637.75-39.1947.4274.0026.58PKHorizontal 48142.00048.0637.90-38.3947.5774.0026.43PKHorizontal 511130.00045.3839.76-35.3549.7974.0024.21PKHorizontal 611983.50045.2339.77-34.6450.3674.0023.64PKHorizontal Final Data List NO . Freq. [MHz] Reading [dBμV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 111130.00034.1139.76-35.3538.5254.0015.48AVHorizontal 211983.50034.1639.77-34.6439.2954.0014.71AVHorizontal Note: 1. If Peak Result complies with AV limit, AV Result is deemed to comply with AV limit. 2. Test setup: RBW: 1 MHz, VBW: 3 MHz, Sweep time: auto. Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E02 TRF:RT-4-E-005Page 63 of 93 TR-4-E-009 Radiated Emission Test Result Test Date:2026-06-15Tested By:Cao Jie Test Mode:TX BLE1M 2402MHz ModePower Supply:DC 48V Condition:Temp:23.5°C;Humi:58.4%Test Site:4# Fully Anechoic Room File Path:d:\ts\2026 report date\Q26051409-1E\FCC ABOVE 1G BLE\10 Memo:Sample Number:S26051409-001 Suspected Data List NO . Freq. [MHz] Reading [dBV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 13880.50049.2731.56-40.0940.7474.0033.26PKVertical 24966.50049.2033.77-40.5342.4474.0031.56PKVertical 37435.50049.0937.13-38.9247.3074.0026.70PKVertical 48136.00049.4637.90-38.4048.9674.0025.04PKVertical 510983.00044.6739.73-35.1849.2274.0024.78PKVertical 612058.50044.8739.86-34.8049.9374.0024.07PKVertical Final Data List NO . Freq. [MHz] Reading [dBμV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 18136.00038.9737.90-38.4038.4754.0015.53AVVertical 210983.00034.4239.73-35.1838.9754.0015.03AVVertical 312058.50034.1539.86-34.8039.2154.0014.79AVVertical Note: 1. If Peak Result complies with AV limit, AV Result is deemed to comply with AV limit. 2. Test setup: RBW: 1 MHz, VBW: 3 MHz, Sweep time: auto. Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E02 TRF:RT-4-E-005Page 64 of 93 TR-4-E-009 Radiated Emission Test Result Test Date:2026-06-15Tested By:Cao Jie Test Mode:TX BLE1M 2440MHz ModePower Supply:DC 48V Condition:Temp:23.5°C;Humi:58.4%Test Site:4# Fully Anechoic Room File Path:d:\ts\2026 report date\Q26051409-1E\FCC ABOVE 1G BLE\11 Memo:Sample Number:S26051409-001 Suspected Data List NO . Freq. [MHz] Reading [dBV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 13900.00048.8931.60-40.0340.4674.0033.54PKHorizontal 24960.50049.8233.74-40.5243.0474.0030.96PKHorizontal 37432.50048.1337.14-38.9246.3574.0027.65PKHorizontal 48290.50048.2837.98-38.1548.1174.0025.89PKHorizontal 510960.50044.7539.78-35.2449.2974.0024.71PKHorizontal 612198.00044.8739.90-34.9749.8074.0024.20PKHorizontal Final Data List NO . Freq. [MHz] Reading [dBμV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 18290.50037.3237.98-38.1537.1554.0016.85AVHorizontal 210960.50034.6439.78-35.2439.1854.0014.82AVHorizontal 312198.00033.8639.90-34.9738.7954.0015.21AVHorizontal Note: 1. If Peak Result complies with AV limit, AV Result is deemed to comply with AV limit. 2. Test setup: RBW: 1 MHz, VBW: 3 MHz, Sweep time: auto. Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E02 TRF:RT-4-E-005Page 65 of 93 TR-4-E-009 Radiated Emission Test Result Test Date:2026-06-15Tested By:Cao Jie Test Mode:TX BLE1M 2440MHz ModePower Supply:DC 48V Condition:Temp:23.5°C;Humi:58.4%Test Site:4# Fully Anechoic Room File Path:d:\ts\2026 report date\Q26051409-1E\FCC ABOVE 1G BLE\12 Memo:Sample Number:S26051409-001 Suspected Data List NO . Freq. [MHz] Reading [dBV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 13876.00049.6931.55-40.1041.1474.0032.86PKVertical 24900.50049.0933.50-40.3942.2074.0031.80PKVertical 37605.00047.8937.21-38.8046.3074.0027.70PKVertical 48332.50047.9238.00-38.2847.6474.0026.36PKVertical 511122.50045.5139.75-35.3449.9274.0024.08PKVertical 612382.50045.4639.72-34.8950.2974.0023.71PKVertical Final Data List NO . Freq. [MHz] Reading [dBμV/m] Antenna Factor [dB] Cable loss [dB] Level [dBμV/m] Limit [dBμV/m] Margin [dB] DetectorPolarity 111122.…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E03 TRF: RT-4-E-005Page 1 of 92 RADIO TEST REPORT Applicant : Guangzhou FIIO Electronics Technology Co., Ltd. Address of Applicant : No.21, Longliang Road, Xialiang Village, Longgui Street, Baiyun District, Guangzhou, Guangdong, P.R. China Manufacturer : Guangzhou FIIO Electronics Technology Co., Ltd. Address of Manufacturer : No.21, Longliang Road, Xialiang Village, Longgui Street, Baiyun District, Guangzhou, Guangdong, P.R. China Equipment under Test : Streaming Amplifier Model No. : F3001A, F3002A, F3003A, F3004A, F3005A FCC ID : R56-FC3002 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, ANSI C63.10-2020+Cor.1-2023+C63.10a- 2024+Errata to C63.10a-2024 Report No. : DDT-RE26051409-1E03 Issue Date : 2026/08/17 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E03 TRF: RT-4-E-005Page 2 of 92 Table of Contents 1.Summary of Test Results .............................................................................................7 2.General Test Information..............................................................................................8 2.1.Description of EUT .......................................................................................................8 2.2.Accessories of EUT......................................................................................................8 2.3.Block diagram of EUT configuration for test.................................................................9 2.4.Decision of final test mode ...........................................................................................9 2.5.Deviations of test standard...........................................................................................9 2.6.Test environment conditions ........................................................................................9 2.7.Test laboratory ...........................................................................................................10 2.8.Measurement uncertainty...........................................................................................11 3.Equipment Used During Conductive Test ..................................................................12 4.6dB Bandwidth ...........................................................................................................13 4.1.Block diagram of test setup ........................................................................................13 4.2.Limits ..........................................................................................................................13 4.3.Test procedure ...........................................................................................................13 4.4.Test result...................................................................................................................14 4.5.Test graphs ................................................................................................................15 5.99% Bandwidth ..........................................................................................................19 5.1.Block diagram of test setup ........................................................................................19 5.2.Limits ..........................................................................................................................19 5.3.Test procedure ...........................................................................................................19 5.4.Test result...................................................................................................................20 5.5.Test graphs ................................................................................................................21 6.Conducted Output Power ...........................................................................................25 6.1.Block diagram of test setup ........................................................................................25 6.2.Limits ..........................................................................................................................25 6.3.Test procedure ...........................................................................................................25 6.4.Test result average.....................................................................................................26 7.Power Spectral Density ..............................................................................................27 7.1.Block diagram of test setup ........................................................................................27 7.2.Limits ..........................................................................................................................27 7.3.Test procedure ...........................................................................................................27 7.4.Test result...................................................................................................................28 7.5.Test graphs ................................................................................................................29 8.Band Edge Compliance (Conducted Method)............................................................33 8.1.Block diagram of test setup ........................................................................................33 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E03 TRF: RT-4-E-005Page 3 of 92 8.2.Limits ..........................................................................................................................33 8.3.Test procedure ...........................................................................................................33 8.4.Test resu…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E03 TRF:RT-4-E-005Page 61 of 92 12.4. Assistant equipment used for test Assistant equipment ManufacturerModel numberDescriptionother ///// 12.5. Test procedure (1) EUT was placed on a non-metallic table, 80 cm above the ground plane inside a semi-anechoic chamber for below 1G and 150 cm above the ground plane inside a fully-anechoic chamber for above 1G. (2) Test antenna was located 3 m from the EUT on an adjustable mast, and the antenna used as below table. Test frequency rangeTest antenna usedTest antenna distance 9 kHz - 30 MHzActive Loop antenna3 m 30 MHz - 1 GHzTrilog Broadband Antenna3 m 1 GHz - 18 GHzDouble Ridged Horn Antenna(1 GHz-18 GHz)3 m 18 GHz - 40 GHzHorn Antenna(18 GHz-40 GHz)1 m According ANSI C63.10 clause 6.4.6 and 6.5.3, for measurements below 30 MHz, Antenna was located 3 m from EUT, the loop antenna was positioned in three antenna orientations (parallel, perpendicular, and round-parallel), for each measurement antenna alignment, the EUT shall be rotated through 0°to 360°on a turntable, and the lowest height of the magnetic antenna shall be 1 m above the ground. For measurement above 30MHz, the trilog Broadband Antenna or Horn Antenna was located 3m from EUT, Measurements were made with the antenna positioned in both the horizontal and vertical planes of Polarization, and the measurement antenna was varied from 1 m to 4 m. in height above the reference ground plane to obtain the maximum signal strength. (3) Below pre-scan procedure was first performed in order to find prominent frequency spectrum radiated emissions from 9 kHz to 25 GHz: (a) Scanning the peak frequency spectrum with the antenna specified in step (3), and the EUT was rotated 360 degree, the antenna height was varied from 1 m to 4 m (Except loop antenna, it’s fixed 1 m above ground.) (b) Change work frequency or channel of device if practicable. (c) Change modulation type of device if practicable. (d) Change power supply range from 85% to 115% of the rated supply voltage (e) Rotated EUT though three orthogonal axes to determine the attitude of EUT arrangement produces highest emissions. Spectrum frequency from 9 kHz to 25 GHz (tenth harmonic of fundamental frequency) was investigated, and no any obvious emission were detected from 18 GHz to 25 GHz, so below final test was performed with frequency range from 9 kHz to 18 GHz. Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E03 TRF:RT-4-E-005Page 62 of 92 (4) For final emissions measurements at each frequency of interest, the EUT was rotated and the antenna height was varied between 1 m and 4 m in order to maximize the emission. Measurements in both horizontal and vertical polarities were made and the data was recorded. In order to find the maximum emission, the relative positions of equipment and all of the interface cables were changed according to ANSI C63.10 on Radiated Emission test. (5) The emissions from 9 kHz to 1 GHz were measured based on CISPR QP detector except for the frequency bands 9 - 90 kHz, 110 - 490 kHz, for emissions from 9 kHz - 90 kHz,110 kHz - 490 kHz and above 1 GHz were measured based on average detector, for emissions above 1 GHz, peak emissions also be measured and need comply with Peak limit. (6) The emissions from 9 kHz to 1 GHz, QP or average values were measured with EMI receiver with below RBW. Frequency bandRBW 9 kHz - 150 kHz200 Hz 150 kHz - 30 MHz9 kHz 30 MHz - 1 GHz120 kHz (7) For emissions above 1GHz, both Peak and Average level were measured with Spectrum Analyzer, and the RBW is set at 1 MHz, VBW is set at 3 MHz for Peak measure; According ANSI C63.10 clause 4.1.5.2.2 procedure for average measure. (8) For portable device, X axis, Y axis, Z axis are tested, and worse setup is reported. (9) According exploratory test, the emission levels are 20 dB below the limit detected from 9 kHz to 30 MHz and 18 GHz to 25 GHz, so the final test was performed with frequency range from 30 MHz to 18 GHz and recorded in below. (10) 30 MHz ~ 25 GHz: (Scan with all mode, the worst case is record and report) (11) For emissions below 1 GHz, according exploratory explorer test, when change Tx mode and channel, have no distinct influence on emissions level, so for emissions below 1 GHz, the final test was only performed with the worst mode. (12) The worst simultaneous case and was recorded. 12.6. Test result PASS. (See below detailed test result) Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE26051409-1E03 TRF:RT-4-E-005Page 63 of 92 12.7. Test data TR-4-E-009 Radiated Emission Test Result Test Date:2026-07-28Tested By:Li Xiongbin Test Mode:TX N20 2462MHz Mod…

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