Test Report_DSS_part2

FCC ID: ZZ2ABH-31R

Test Report

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FCCID_4494042

A\GC Report No.: AGC02276190902FEO3 Page 47 of 66 EUT Wireless Bluetooth Earphones Model Name ABH—31R Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 1 Antenna Vertical BR Keysight Spectrum Analyzer— Swept S& ALlGN AUTO |09:05—07PM Sep 25, 2019 Avg Type: Log—Pwr ce e lcd "Fast C0 Trig: Free Run AvglHold:>100/100 o0 IFGain:Low Atten: 20 dB Ref 116.99 dBpVim Start 2.37000 GHz Stop 241000 GHz #Res BW 1.0 MHz cRA n Sweep 1.000 ms (1001 pts) wKr MObE TRC) Sct x y FUNCTION FUNCTION WDTH 2402 00 GHz|__91.748 dB V’m AutgN AVTO Avg Type: RMS MTest C0— Trig: Free Run AvglHold:>100/100 IFGain:Low Aften: 20 dB Ref 116.99 dBpVim Start 2.37000 GHz Stop 241000 GHz #Res BW 1.0 MHz cRa LA Sweep 1.000 ms (1001 pts) k® wobE TRC Sct FUNCTION runction wt FUNCTIONYALUE + IEEnEA! 2402 MhcHmEt 865dBuVim /m EEHEAEA 2.390 00 GHz| 35.064 aBuV/m|_________|________|____________| ie RESULT: PASS Attestation of Global Compliance(Shenzhen)Co.,Ltd. Add: 2/F., Building 2,Sanwei Chaxi Industrial Park, Sanwei Community, Attestationd j pliance Hangcheng Street, Bao‘an District, Shenzhen, Guangdong, China Tel: +86—755 2523 4088 E—mail: agc@age—cert.com Service Hotline:400 089 2118

Report No.: AGC02276190902FE03 Page 48 of 66 EUT Wireless Bluetooth Earphones Model Name ABH-31R Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 3 Antenna Horizontal PK AV RESULT: PASS

Report No.: AGC02276190902FE03 Page 49 of 66 EUT Wireless Bluetooth Earphones Model Name ABH-31R Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 3 Antenna Vertical PK AV RESULT: PASS Note: The factor had been edited in the “Input Correction” of the Spectrum Analyzer. So the Amplitude of test plots is equal to Reading level plus the Factor in dB. Use the A dB(μV) to represent the Amplitude. Use the F dB(μV/m) to represent the Field Strength. So A=F. All test modes had been pre-tested. The GFSK modulation is the worst case and recorded in the report.

Report No.: AGC02276190902FE03 Page 50 of 66 11. NUMBER OF HOPPING FREQUENCY 11.1. MEASUREMENT PROCEDURE The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: The frequency band of operation. Depending on the number of channels the device supports, it may be necessary to divide the frequency range of operation across multiple spans, to allow the individual channels to be clearly seen. 2. RBW: To identify clearly the individual channels, set the RBW to less than 30% of the channel spacing or the 20 dB bandwidth, whichever is smaller. 3. VBW ≥ RBW. Sweep: Auto. Detector function: Peak. Trace: Max hold. 4. Allow the trace to stabilize. 11.2. TEST SETUP (BLOCK DIAGRAM OF CONFIGURATION) Same as described in section 8.2 11.3. MEASUREMENT EQUIPMENT USED The same as described in section 6 11.4. LIMITS AND MEASUREMENT RESULT MEASUREMENT TOTAL NO. OF LIMIT (NO. OF CH) RESULT (NO. OF CH) HOPPING CHANNEL >=15 79 PASS TEST PLOT FOR NO. OF TOTAL CHANNELS Note: The GFSK modulation is the worst case and recorded in the report.

Report No.: AGC02276190902FE03 Page 51 of 66 12. TIME OF OCCUPANCY (DWELL TIME) 12.1. MEASUREMENT PROCEDURE The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: Zero span, centered on a hopping channel. 2. RBW shall be≤channel spacing and where possible RBW should be set >> 1 / T, where T is the expected dwell time per channel. 3. Sweep: As necessary to capture the entire dwell time per hopping channel; where possible use a video trigger and trigger delay so that the transmitted signal starts a little to the right of the start of the plot. The trigger level might need slight adjustment to prevent triggering when the system hops on an adjacent channel; a second plot might be needed with a longer sweep time to show two successive hops on a channel. 4. Detector function: Peak. Trace: Max hold. 5. Use the marker-delta function to determine the transmit time per hop. 6. Repeat the measurement using a longer sweep time to determine the number of hops over the period specified in the requirements. The sweep time shall be equal to, or less than, the period specified in the requirements. Determine the number of hops over the sweep time and calculate the total number of hops in the period specified in the requirements, using the following equation: (Number of hops in the period specified in the requirements) = (number of hops on spectrum analyzer) × (period specified in the requirements / analyzer sweep time) 7. The average time of occupancy is calculated from the transmit time per hop multiplied by the number of hops in the period specified in the requirements. 12.2. TEST SETUP (BLOCK DIAGRAM OF CONFIGURATION) Same as described in section 8.2 12.3. MEASUREMENT EQUIPMENT USED The same as described in section 6 12.4. LIMITS AND MEASUREMENT RESULT Time of Pulse Number of hops in the period Sweep Time Limit Channel for DH5 specified in the requirements (ms) (ms) (ms) Low 2.885 31*4 357.74 400 Middle 2.870 30*4 344.40 400 High 2.880 31*4 357.12 400 Note: The 8-DPSK modulation is the worst case and recorded in the report.

Report No.: AGC02276190902FE03 Page 52 of 66 TEST PLOT OF LOW CHANNEL

Report No.: AGC02276190902FE03 Page 53 of 66 TEST PLOT OF MIDDLE CHANNEL

Report No.: AGC02276190902FE03 Page 54 of 66 TEST PLOT OF HIGH CHANNEL

Report No.: AGC02276190902FE03 Page 55 of 66 13. FREQUENCY SEPARATION 13.1. MEASUREMENT PROCEDURE The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: Wide enough to capture the peaks of two adjacent channels. 2. RBW: Start with the RBW set to approximately 30% of the channel spacing; adjust as necessary to best identify the center of each individual channel. 3. Video (or average) bandwidth (VBW) ≥ RBW. 4. Sweep: Auto. e) Detector function: Peak. f) Trace: Max hold. g) Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent channels. 13.2. TEST SETUP (BLOCK DIAGRAM OF CONFIGURATION) Same as described in section 6.2 13.3. MEASUREMENT EQUIPMENT USED The same as described in section 6.3 13.4. LIMITS AND MEASUREMENT RESULT CHANNEL LIMIT RESULT CHANNEL SEPARATION KHz KHz Pass CH01-CH02 1001 >=25 KHz or 2/3 20 dB BW TEST PLOT FOR FREQUENCY SEPARATION Note: The 8-DPSK modulation is the worst case and recorded in the report.

Report No.: AGC02276190902FE03 Page 56 of 66 APPENDIX A: PHOTOGRAPHS OF TEST SETUP RADIATED EMISSION TEST SETUP BELOW 1GHZ RADIATED EMISSION TEST SETUP ABOVE 1GHZ

Report No.: AGC02276190902FE03 Page 57 of 66 APPENDIX B: PHOTOGRAPHS OF EUT ALL VIEW OF EUT TOP VIEW OF EUT

Report No.: AGC02276190902FE03 Page 58 of 66 BOTTOM VIEW OF EUT FRONT VIEW OF EUT

Report No.: AGC02276190902FE03 Page 59 of 66 BACK VIEW OF EUT LEFT VIEW OF EUT

Report No.: AGC02276190902FE03 Page 60 of 66 RIGHT VIEW OF EUT VIEW OF EUT(PORT)

Report No.: AGC02276190902FE03 Page 61 of 66 OPEN VIEW OF EUT(left) VIEW OF BATTERY

Report No.: AGC02276190902FE03 Page 62 of 66 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2

Report No.: AGC02276190902FE03 Page 63 of 66 INTERNAL VIEW OF EUT-3 Antenna INTERNAL VIEW OF EUT-4

Report No.: AGC02276190902FE03 Page 64 of 66 OPEN VIEW OF EUT(right) VIEW OF BATTERY

Report No.: AGC02276190902FE03 Page 65 of 66 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2

Report No.: AGC02276190902FE03 Page 66 of 66 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 Antenna ----END OF REPORT----


Document Created: 2019-10-29 15:01:02
Document Modified: 2019-10-29 15:01:02
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