FCC Part 15 Subpart C Test Report
Report Reference No.: MAX25071411-P01R01
FCC ID: 2AY3H-GP100
Manufacturer/Applicant: Shenzhen Ajazz Tongchuang Electronic Technology Co., Ltd.
Product: Handle
Model/Type reference: GP100
Testing Laboratory: MAXLAB Testing Co.,Ltd.
1 Test Standards
The tests were performed according to the following standards:
- FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems operating within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz.
- ANSI C63.10-2020: American National Standard for Testing Unlicensed Wireless Devices.
- KDB558074 D01 V05r02: Guidance for Performing Compliance Measurements on Digital Transmission Systems (DTS) Operating Under §15.247.
2 Summary
General Remarks:
- Date of receipt of test sample: July 11, 2025
- Testing commenced on: July 11, 2025
- Testing concluded on: July 18, 2025
Product Description:
- Product Description: Handle
- Model/Type reference: GP100
- Power supply: DC 3.7V from battery or DC 5.0V from USB Port
- Adapter information: Input: AC 100-240V 50/60Hz, Output: DC 5V 2A
- Firmware Version: EPTA5.14.2
- Manufacturer: Huizhou Dongyang Yienbi Electronics Co., Ltd.
- Testing sample ID: MAX25071411-P01R01-1# (Engineer sample), MAX25071411-P01R01-2# (Normal sample)
- Bluetooth BLE:
- Supported type: Bluetooth low Energy
- Modulation: GFSK
- Operation frequency: 2402MHz to 2480MHz
- Channel number: 40
- Channel separation: 2 MHz
- Antenna type: PCB antenna
- Antenna gain: 2.64 dBi
Equipment Under Test (EUT):
- Power supply system utilised: 230V/ 50 Hz, 120V/60Hz, 12 V DC, 24 V DC, DC 3.7V from battery or DC 5.0V from USB Port.
Short description of the Equipment under Test (EUT): This is a BLE Handle, and the right earphone is used for testing and photography. For more details, refer to the user's manual of the EUT.
EUT operation mode: The applicant provided tools software (Engineer mode) to control the EUT for staying in continuous transmitting (Duty Cycle more than 98%) and receiving mode for testing. Channels 00, 19, and 39 were selected for testing.
Block Diagram of Test Setup: A diagram shows the EUT connected to a DC 5V from Adapter.
Related Submittal(s) / Grant (s): This test report is intended for the device filing to comply with Section 15.247 of the FCC Part 15, Subpart C Rules.
Modifications: No modifications were implemented to meet testing criteria.
3 Test Environment
Address of the test laboratory: MAXLAB Testing Co.,Ltd., 1/F, Building B, Xinshidai GR Park, Shiyan Street, Bao'an District, Shenzhen, Guangdong, 518052, People's Republic of China.
Test Facility: MAXLAB Testing Co.,Ltd. is listed on the US Federal Communications Commission list of test facilities recognized to perform electromagnetic emissions measurements. It is also registered with Industry Canada (Registration Number: 11093A, CAB identifier: CN0019) and accredited by A2LA (Lab Cert. No.: 4707.01) for electromagnetic emission measurement.
Environmental conditions:
- Radiated Emission: Temperature: 23 °C, Humidity: 44%, Atmospheric pressure: 950-1050mbar.
- AC Main Conducted testing: Temperature: 24 °C, Humidity: 47%, Atmospheric pressure: 950-1050mbar.
- Conducted testing: Temperature: 24 °C, Humidity: 46%, Atmospheric pressure: 950-1050mbar.
Summary of measurement results: A table indicates that the measurement uncertainty is not included in the test result and that the worst-case scenario was tested.
Statement of the measurement uncertainty: The data and results are true and accurate. The measurement uncertainty was calculated according to relevant standards and documented in the quality system. The manufacturer holds responsibility for continued compliance.
Equipments Used during the Test: Detailed lists of conducted emission test equipment and radiation test equipment are provided, including manufacturer, model, serial number, and calibration dates.
4 Test Conditions and Results
4.1 AC Power Conducted Emission
Test Configuration: Diagram shows the EUT, LISN, EMI receiver, and reference planes for conducted emission testing.
Test Procedure: The EUT was set up on a tabletop, powered via an adapter, and connected to a LISN. Emissions were measured on each current carrying line from 150 KHz to 30MHz.
AC Power Conducted Emission Limit: Limits are defined for frequency ranges 0.15-0.5 MHz, 0.5-5 MHz, and 5-30 MHz for Quasi-peak and Average detectors.
Test Results: Tables show measured levels, limits, and margins for conducted emissions for two different power supply configurations (DC 3.7V from battery/DC 5.0V from USB and DC 5V from Adapter AC 120V/60Hz). Plots illustrate the emission curves against the FCC QP and FCC Ave limits.
4.2 Radiated Emissions and Band Edge
Test Configuration: Diagrams illustrate test setups for frequency ranges 9 KHz – 30MHz, 30MHz – 1000MHz, and above 1GHz-25GHz, showing EUT, turntable, antenna, test receiver, ground plane, and coaxial cable.
Test Procedure: The EUT was placed on a turntable at specified heights. Emissions were maximized by raising the antenna, rotating the turntable, and changing polarization. Measurements were taken from 9 KHz to 25GHz.
Field Strength Calculation: The formula FS = RA + AF + CL - AG is provided for calculating field strength.
Radiation Limit: Tables define limits for radiated emissions according to FCC §15.209(a) and §15.247(d).
Test Results:
- Pre-test emissions from 9 KHz to 30MHz were found to be 20dB below the limit and not recorded.
- BLE 1Mpbs were tested at Low, Middle, and High channels.
- Radiated emission tests from 9 KHz to 10th harmonic were verified, with no emissions found except system noise floor.
- Results for 30MHz-1GHz are presented in tables for Horizontal and Vertical polarization, showing measured levels against limits.
- Results for 1GHz-25GHz are presented in tables for GFSK modulation at channels 2402, 2440, and 2480 MHz, for both Horizontal and Vertical polarization, detailing emission levels, limits, and margins.
- Band Edge Test results (Radiated) are presented for Lowest and Highest channels, for both Horizontal and Vertical polarization, showing emission levels and margins.
4.3 Maximum Peak Output Power
Limit: The Maximum Peak Output Power Measurement is 30dBm.
Test Procedure: The antenna was removed, and an RF cable connected to a power sensor.
Test Results: A table shows the output power for GFSK 1Mbps at channels 00, 19, and 39, all of which passed against the 30dBm limit.
4.4 Power Spectral Density
Limit: The power spectral density shall not be greater than 8 dBm in any 3 kHz band.
Test Procedure: The procedure involves setting RBW ≥ 3 kHz, VBW ≥ 3x RBW, span to 1.5 times channel bandwidth, peak detector, and max hold. Measurements are taken to determine the maximum power level.
Test Configuration: Diagram shows EUT connected to a Spectrum Analyzer.
Test Results: A table shows the Power Spectral Density for GFSK 1Mbps at channels 00, 19, and 39, all below the 8.00 dBm/3KHz limit. Spectrum analyzer plots are provided for each channel.
4.5 6dB Bandwidth
Limit: The minimum 6 dB bandwidth shall be at least 500 kHz.
Test Procedure: The transmitter output was connected to a spectrum analyzer. The 6dB bandwidth was measured using 100 KHz RBW and 300 KHz VBW.
Test Configuration: Diagram shows EUT connected to a Spectrum Analyzer.
Test Results: A table shows the 6dB Bandwidth for GFSK 1Mbps at channels 00, 19, and 39, all exceeding the 500 kHz (0.5 MHz) limit. Spectrum analyzer plots are provided for each channel.
4.6 Out-of-band Emissions
Limit: In any 100 kHz bandwidth outside the frequency band, the radio frequency power 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. If RMS averaging is used, the attenuation is 30 dB.
Test Procedure: The transmitter output was connected to a spectrum analyzer with settings RBW=100 kHz, VBW= 300 kHz, peak detector, and max hold.
Test Configuration: Diagram shows EUT connected to a Spectrum Analyzer.
Test Results: Spectrum analyzer plots are provided for GFSK 1Mbps at channels 00, 19, and 39, showing emissions from 30MHz to 25GHz. Band-edge measurements for RF conducted emissions are also shown graphically for left and right band edges.
4.7 Antenna Requirement
Standard Applicable: According to FCC 47 CFR Section 15.203, intentional radiators must be designed to ensure no antenna other than that furnished by the responsible party is used. A permanently attached antenna or unique coupling is permitted, but standard antenna jacks are prohibited.
FCC CFR Title 47 Part 15 Subpart C Section 15.247(c) (1) (i): For systems operating in the 2400-2483.5 MHz band, transmitting antennas with directional gain greater than 6dBi require the maximum conducted output power to be reduced by 1 dB for every 3 dB the gain exceeds 6dBi.
Antenna Connected Construction: The maximum gain of the antenna was 2.64 dBi.
Remark: The antenna gain is provided by the customer. MAXLAB Testing Co., Ltd. does not assume responsibility if this data is inaccurate.
5 Test Setup Photos of the EUT
Reference to the appendix I for details.
