2280273R-RFUSBLEV01-A Report-GN(HSC170W)-Version (V1.0) FCC-15.247 -BLE
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Confidential HSC170W- TestRpt FCC-15.247 -BLE - 1026 V3
GN Audio USA Inc. HSC170W Jabra HSC170W Bluetooth Headset BCE-HSC170W BCEHSC170W hsc170w
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HSC170W Jabra Hsc170 W Bluetooth Headset by GN Audio USA
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Document DEVICE REPORTHSC170W-Test-Report-GN-Audio-USA-bce-hsc170w-ex-2-6Report No.: 2280273R-RFUSBLEV01-A FCC Test Report Product Name Bluetooth Headset Model No. HSC170W FCC ID. BCE-HSC170W Applicant GN Audio USA Inc. Address 900 Chelmsfort St, Tower 2, Floor 8 , Lowell, Massachusetts, 1851 United States Date of Receipt Issued Date Report No. Report Version Aug. 09, 2022 Oct. 26, 2022 2280273R-RFUSBLEV01-A V1.0 The test results relate only to the samples tested. The test results shown in the test report are traceable to the national/international standard through the calibration report of the equipment and evaluated measurement uncertainty herein. This report must not be used to claim product endorsement by TAF or any agency of the government. The test report shall not be reproduced without the written approval of DEKRA Testing and Certification Co., Ltd. Measurement uncertainties evaluated for each testing system and associated connections are given here to provide the system information for reference. Compliance determinations do not take into account measurement uncertainties for each testing system, but are based on the results of the compliance measurement. Page: 1 of 47 Report No.: 2280273R-RFUSBLEV01-A Test Report Issued Date: Oct. 26, 2022 Report No.: 2280273R-RFUSBLEV01-A Product Name Bluetooth Headset Applicant GN Audio USA Inc. Address 900 Chelmsfort St, Tower 2, Floor 8 , Lowell, Massachusetts, 1851 United States Manufacturer GN Audio USA Inc. Model No. HSC170W FCC ID. BCE-HSC170W EUT Rated Voltage DC 5V by USB or DC 3.7V by Battery EUT Test Voltage DC 5V by USB Trade Name Jabra Applicable Standard FCC CFR Title 47 Part 15 Subpart C ANSI C63.4: 2014, ANSI C63.10: 2013 Test Result Complied Documented By : Tested By : Approved By : (Senior Project Specialist / April Chen) ( Senior Engineer / Bill Lin ) ( Senior Engineer / Alan Chen) Page: 2 of 47 Report No.: 2280273R-RFUSBLEV01-A TABLE OF CONTENTS Description Page 1. GENERAL INFORMATION ...............................................................................................................5 1.1. EUT Description......................................................................................................................................5 1.2. Tested System Details..............................................................................................................................7 1.3. Configuration of Tested System ..............................................................................................................7 1.4. EUT Exercise Software ...........................................................................................................................8 1.5. Test Facility .............................................................................................................................................9 1.6. List of Test Equipment...........................................................................................................................10 1.7. Uncertainty ............................................................................................................................................11 2. CONDUCTED EMISSION ................................................................................................................12 2.1. Test Setup ..............................................................................................................................................12 2.2. Limits ..................................................................................................................................................... 12 2.3. Test Procedure .......................................................................................................................................13 2.4. Test Result of Conducted Emission.......................................................................................................14 3. PEAK POWER OUTPUT ..................................................................................................................15 3.1. Test Setup ..............................................................................................................................................15 3.2. Limit ......................................................................................................................................................15 3.3. Test Procedure .......................................................................................................................................15 3.4. Test Result of Peak Power Output .........................................................................................................16 4. RADIATED EMISSION .....................................................................................................................18 4.1. Test Setup ..............................................................................................................................................18 4.2. Limits ..................................................................................................................................................... 19 4.3. Test Procedure .......................................................................................................................................20 4.4. Test Result of Radiated Emission ..........................................................................................................22 5. RF ANTENNA CONDUCTED TEST................................................................................................26 5.1. Test Setup ..............................................................................................................................................26 5.2. Limits ..................................................................................................................................................... 26 5.3. Test Procedure .......................................................................................................................................26 5.4. Test Result of RF Antenna Conducted Test ...........................................................................................27 6. BAND EDGE .......................................................................................................................................29 6.1. Test Setup ..............................................................................................................................................29 6.2. Limit ......................................................................................................................................................30 6.3. Test Procedure .......................................................................................................................................30 6.4. Test Result of Band Edge ......................................................................................................................32 7. 6DB BANDWIDTH .............................................................................................................................38 7.1. Test Setup ..............................................................................................................................................38 7.2. Limits ..................................................................................................................................................... 38 7.3. Test Procedure .......................................................................................................................................38 7.4. Test Result of 6dB Bandwidth...............................................................................................................39 8. POWER DENSITY .............................................................................................................................41 8.1. Test Setup ..............................................................................................................................................41 8.2. Limits ..................................................................................................................................................... 41 8.3. Test Procedure .......................................................................................................................................41 8.4. Test Result of Power Density ................................................................................................................42 9. DUTY CYCLE .....................................................................................................................................44 9.1. Test Setup ..............................................................................................................................................44 9.2. Test Procedure .......................................................................................................................................44 9.3. Test Result of Duty Cycle......................................................................................................................45 10. EMI REDUCTION METHOD DURING COMPLIANCE TESTING ..........................................47 Appendix 1: EUT Test Photographs Appendix 2: Product Photos-Please refer to the file: 2280273R-Product Photos Page: 3 of 47 Report No.: 2280273R-RFUSBLEV01-A Revision History Report No. 2280273R-RFUSBLEV01-A Version V1.0 Description Initial issue of report. Issued Date Oct. 26, 2022 Page: 4 of 47 Report No.: 2280273R-RFUSBLEV01-A 1. GENERAL INFORMATION 1.1. EUT Description Product Name Trade Name Model No. FCC ID. Frequency Range Channel Number Type of Modulation Antenna Type Bluetooth Headset Jabra HSC170W BCE-HSC170W 2402 2480MHz V5.2: 40CH V5.2: GFSK(1Mbps) (2Mbps) PCB Antenna Channel Control Antenna Gain Desk Stand Auto Refer to the table "Antenna List" MFR: GN Audio A/S, M/N: DIV040 Bluetooth USB Dongle Type C to Type C Cable MFR: Jabra, M/N: END060W, Shielded, 1.2m Type C to USB Cable Shielded, 1.2m Antenna List No. Manufacturer Part No. Antenna Type 1 GN Audio A/S HSC170W PCB Antenna Note: The antenna of EUT is conforming to FCC 15.203. Peak Gain 3.69dBi for 2.4 GHz Page: 5 of 47 Report No.: 2280273R-RFUSBLEV01-A Center Frequency of Each Channel: Channel Frequency Channel Channel 00: 2402 MHz Channel 01: Channel 04: 2410 MHz Channel 05: Channel 08: 2418 MHz Channel 09: Channel 12: 2426 MHz Channel 13: Channel 16: 2434 MHz Channel 17: Channel 20: 2442 MHz Channel 21: Channel 24: 2450 MHz Channel 25: Channel 28: 2458 MHz Channel 29: Channel 32: 2466 MHz Channel 33: Channel 36: 2474 MHz Channel 37: Frequency 2404 MHz 2412 MHz 2420 MHz 2428 MHz 2436 MHz 2444 MHz 2452 MHz 2460 MHz 2468 MHz 2476 MHz Channel Channel 02: Channel 06: Channel 10: Channel 14: Channel 18: Channel 22: Channel 26: Channel 30: Channel 34: Channel 38: Frequency 2406 MHz 2414 MHz 2422 MHz 2430 MHz 2438 MHz 2446 MHz 2454 MHz 2462 MHz 2470 MHz 2478 MHz Channel Channel 03: Channel 07: Channel 11: Channel 15: Channel 19: Channel 23: Channel 27: Channel 31: Channel 35: Channel 39: Frequency 2408 MHz 2416 MHz 2424 MHz 2432 MHz 2440 MHz 2448 MHz 2456 MHz 2464 MHz 2472 MHz 2480 MHz Note: 1. The EUT is a Bluetooth Headset with built-in Bluetooth (5.2 and V3.0+HS, V2.1+EDR) transceiver, this report for Bluetooth V5.2. 2. The radiation measurements are performed in X, Y, Z axis positioning. Only the worst case is shown in the report 3. Regarding to the operation frequency, the lowest, middle and highest frequency are selected to perform the test. 4. DEKRA has evaluated each test mode. Only the worst case is shown in the report. 5. Mono and Stereo headsets are different in the amount of the speaker only. Their Bluetooth chip and antenna is completely the same, while the duo left-hand side only holds additional beads, protection-diodes, and another speaker. 6. These tests were conducted on a sample for the purpose of demonstrating compliance of transmitter with Part 15 Subpart C Paragraph 15.247 for spread spectrum devices. Test Mode Mode 1: Transmit - 1Mbps-BLE Mode 2: Transmit - 2Mbps-BLE Mode 3: Charge Mode Page: 6 of 47 Report No.: 2280273R-RFUSBLEV01-A 1.2. Tested System Details The types for all equipment, plus descriptions of all cables used in the tested system (including inserted cards) are: Transmit Product 1 Notebook PC Manufacturer DELL Model No. Latitude 5580 Serial No. GDZN7H2 Power Cord N/A Signal Cable Type Manufacturer A Type C to USB Cable DEKRA Model No. Type C to USB Cable-1 Signal cable Description Shielded, 0.8m Charge Mode Product 1 Notebook PC 2 Desk Stand Manufacturer DELL GN Audio A/S Model No. Latitude 5580 DIV040 Serial No. GDZN7H2 N/A Power Cord N/A N/A Signal Cable Type Manufacturer A Type C to USB Cable GN Audio A/S Model No. Type C to USB Signal cable Description Shielded, 1.5m Page: 7 of 47 Report No.: 2280273R-RFUSBLEV01-A 1.3. Configuration of Tested System Transmit Charge Mode 1.4. EUT Exercise Software (1) Setup the EUT as shown in Section 1.3. (2) Execute software "BlueTest3 Version 3.3.5" on the EUT. (3) Configure the test mode, the test channel, and the data rate. (4) Press "OK" to start the continuous Transmit. (5) Verify that the EUT works properly. Page: 8 of 47 Report No.: 2280273R-RFUSBLEV01-A 1.5. Test Facility Ambient conditions in the laboratory: Performed Item Items Conducted Emission Temperature (°C) Humidity (%RH) Radiated Emission Temperature (°C) Humidity (%RH) Conductive Temperature (°C) Humidity (%RH) Required 10~40 10~90 % 10~40 10~90 % 10~40 10~90 % Actual 23.4 55.2 % 22.6 58.2 % 25.6 52.8 % USA : FCC Registration Number: TW0033 Canada : CAB Identifier Number: TW3023 / Company Number: 26930 Site Description : Accredited by TAF Accredited Number: 3023 Test Laboratory : DEKRA Testing and Certification Co., Ltd Address : No. 5-22, Ruishukeng Linkou District, New Taipei City, 24451, Taiwan Performed Location : No. 26, Huaya 1st Rd., Guishan Dist.,Taoyuan City 333411, Taiwan, R.O.C. Phone number : +886-3-275-7255 Fax number : +866-3-327-8031 Email address : [email protected] Website : http://www.dekra.com.tw Page: 9 of 47 Report No.: 2280273R-RFUSBLEV01-A 1.6. List of Test Equipment For Conduction measurements /HY-SR01 Equipment Manufacturer Model No. Serial No. Cal. Date X EMI Test Receiver R&S ESR7 101601 2022/06/23 X Two-Line V-Network R&S ENV216 101306 2022/05/23 X Two-Line V-Network R&S ENV216 101307 2022/05/04 X Coaxial Cable SUHNER RG400_BNC RF001 2022/05/24 Note: 1. All equipments are calibrated every one year. 2. The test instruments marked with "X" are used to measure the final test results. 3. Test Software version : E3 210616 dekra V9. Due. Date 2023/06/22 2023/05/22 2023/05/03 2023/05/23 For Conducted measurements /HY-SR02 Equipment Manufacturer Model No. Serial No. Cal. Date X Spectrum Analyzer R&S FSV40 101149 2022/03/25 X Peak Power Analyzer KEYSIGHT 8990B MY51000410 2022/08/06 X Wideband Power Sensor KEYSIGHT N1923A MY56080003 2022/08/05 X Wideband Power Sensor KEYSIGHT N1923A MY56080004 2022/08/05 Note: 1. All equipments are calibrated every one year. 2. The test instruments marked with "X" are used to measure the final test results. 3. Test Software version : RF Conducted Test Tools R3 V3.0.1.19. Due. Date 2023/03/24 2023/08/05 2023/08/04 2023/08/04 For Radiated measurements /HY-CB03 Equipment Manufacturer Model No. Serial No. Cal. Date Due. Date Loop Antenna AMETEK HLA6121 49611 2022/03/18 2023/03/17 X Bi-Log Antenna SCHWARZBECK VULB9168 9168-675 2021/08/11 2023/08/10 X Horn Antenna RF SPIN DRH18-E 210503A18ES 2022/06/08 2023/06/07 X Horn Antenna Com-Power AH-840 101100 2021/10/04 2022/10/03 X Pre-Amplifier SGH 0301-9 20211007-11 2022/02/22 2023/02/21 X Pre-Amplifier EMCI EMC051835SE 980632 2021/09/07 2022/09/06 X Pre-Amplifier EMCI EMC05820SE 980285 2021/12/16 2022/12/15 Pre-Amplifier EMCI EMC184045SE 980369 Coaxial Cable EMCI EMC102-KM-KM-600 1160314 2022/05/12 2023/05/11 Coaxial Cable EMCI EMC102-KM-KM-7000 170242 X Filter MICRO TRONICS BRM50702 G251 2021/09/16 2022/09/15 Filter MICRO TRONICS BRM50716 G188 2021/09/16 2022/09/15 X EMI Test Receiver R&S ESR 102793 2021/12/15 2022/12/14 X Spectrum Analyzer R&S FSV3044 101114 2022/02/11 2023/02/10 Coaxial Cable SGH HA800 GD20110223-2 X Coaxial Cable Coaxial Cable SGH SGH HA800 SGH18 GD20110222-4 2021005-2 2022/01/05 2023/01/04 Coaxial Cable SGH SGH18 202108-5 Note: 1. Bi-Log Antenna is calibrated every two years, the other equipments are calibrated every one year. 2. The test instruments marked with "X" are used to measure the final test results. 3. Test Software version : E3 210616 dekra V9. Page: 10 of 47 Report No.: 2280273R-RFUSBLEV01-A 1.7. Uncertainty Uncertainties have been calculated according to the DEKRA internal document. The reported expanded uncertainties are based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95%. Measurement uncertainties evaluated for each testing system and associated connections are given here to provide the system information for reference. Compliance determinations do not take into account measurement uncertainties for each testing system, but are based on the results of the compliance measurement. Test item Conducted Emission Peak Power Output Radiated Emission RF Antenna Conducted Test Band Edge 6dB Bandwidth Power Density Duty Cycle Uncertainty ±3.42 dB ±0.91 dB Under 1GHz Above 1GHz ±4.06 dB ±3.73 dB ±2.53 dB Under 1GHz Above 1GHz ±4.06 dB ±3.73 dB ±682.83 Hz ±2.53 dB ±2.31 ms Page: 11 of 47 Report No.: 2280273R-RFUSBLEV01-A 2. Conducted Emission 2.1. Test Setup Test Receiver 12dBuV Reference Plane 40cm EUT Load LISN Ground Plane LISN LISN 2.2. Limits FCC Part 15 Subpart C Paragraph 15.207 (dBuV) Limit Frequency MHz Limits QP AV 0.15 - 0.50 66-56 56-46 0.50-5.0 56 46 5.0 - 30 60 50 Remarks: In the above table, the tighter limit applies at the band edges. Page: 12 of 47 Report No.: 2280273R-RFUSBLEV01-A 2.3. Test Procedure The EUT and Peripherals are connected to the main power through a line impedance stabilization network (L.I.S.N.). This provides a 50 ohm /50uH coupling impedance for the measuring equipment. The peripheral devices are also connected to the main power through a LISN that provides a 50ohm /50uH coupling impedance with 50ohm termination. (Please refer to the block diagram of the test setup and photographs.) Both sides of A.C. line are checked for maximum conducted interference. In order to find the maximum emission, the relative positions of equipment and all the interface cables must be changed according to ANSI C63.4: 2014 on conducted measurement. Conducted emissions were invested over the frequency range from 0.15MHz to 30MHz using a receiver bandwidth of 9kHz. The EUT was setup to ANSI C63.4, 2014; tested to DTS test procedure of FCC KDB-558074 for compliance to FCC 47CFR Subpart C requirements. Page: 13 of 47 Report No.: 2280273R-RFUSBLEV01-A 2.4. Test Result of Conducted Emission Page: 14 of 47 Report No.: 2280273R-RFUSBLEV01-A 3. Peak Power Output 3.1. Test Setup EUT RF Cable SMA Connecter Power Meter 3.2. Limit The maximum peak power shall be less 1Watt. 3.3. Test Procedure The EUT was tested according to C63.10:2013 for compliance to FCC 47CFR 15.247 requirements. The maximum peak conducted output power using C63.10:2013 Section 11.9.1.3 PKPM1 Peak power meter method. Page: 15 of 47 Report No.: 2280273R-RFUSBLEV01-A 3.4. Test Result of Peak Power Output Product : Test Item : Test Mode : Test Date : Bluetooth Headset Peak Power Output Mode 1: Transmit - 1Mbps-BLE 2022/08/12 Channel No. Channel 00 Channel 19 Channel 39 Frequency (MHz) 2402 2440 2480 Measurement (dBm) 3.35 3.43 3.48 Required Limit 1 Watt= 30 dBm 1 Watt= 30 dBm 1 Watt= 30 dBm Result Pass Pass Pass Page: 16 of 47 Report No.: 2280273R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset Peak Power Output Mode 2: Transmit - 2Mbps-BLE 2022/08/12 Channel No. Channel 00 Channel 19 Channel 39 Frequency (MHz) 2402 2440 2480 Measurement (dBm) 3.39 3.44 3.42 Required Limit 1 Watt= 30 dBm 1 Watt= 30 dBm 1 Watt= 30 dBm Result Pass Pass Pass Page: 17 of 47 Report No.: 2280273R-RFUSBLEV01-A 4. Radiated Emission 4.1. Test Setup Radiated Emission Under 30MHz 3m Non-Conducted Table Test Receiver EUT Antenna Mast Broadband or Loop Antenna Antenna height is1m. 80cm Fully soldered Metal Ground 1m To Receiver Radiated Emission Below 1GHz 3m 1m to 4m Non-Conducted Table Test Receiver EUT 80cm The height of broad band antenna was scanned from 1m to 4m. The distance between antenna and turn table Fully soldered Metal Ground To Controller To Receiver Radiated Emission Above 1GHz EUT 150cm 3m The height of board band or Dipole Antenna was scanned from 1M to 4M. The distance between antenna and turn table was 3M regards to the standard adopted. RF absorber material on the ground plane. To Receiver PreAmplifier Page: 18 of 47 Report No.: 2280273R-RFUSBLEV01-A 4.2. Limits General Radiated Emission Limits Emissions radiated outside of the specified frequency bands, except for harmonics, shall be attenuated by at least 20dB below the level of the fundamental or to the general radiated emission limits in paragraph 15.209, whichever is the lesser attenuation. FCC Part 15 Subpart C Paragraph 15.209 Limits Frequency MHz Field strength (microvolts/meter) Measurement distance (meter) 0.009-0.490 2400/F(kHz) 300 0.490-1.705 24000/F(kHz) 30 1.705-30 30 30 30-88 100 3 88-216 150 3 216-960 200 3 Above 960 500 3 Remarks: 1. RF Voltage (dBuV) = 20 log RF Voltage (uV) 2. In the Above Table, the tighter limit applies at the band edges. 3. Distance refers to the distance in meters between the measuring instrument antenna and the closed point of any part of the device or system. Page: 19 of 47 Report No.: 2280273R-RFUSBLEV01-A 4.3. Test Procedure The EUT was setup according to ANSI C63.10: 2013 and tested according to C63.10:2013 Section 11.12.1 for compliance to FCC 47CFR 15.247 requirements. Measuring the frequency range below 1GHz, the EUT is placed on a turn table which is 0.8 meter above ground,when measuring the frequency range above 1GHz, the EUT is placed on a turn table which is 1.5 meter above ground. The turn table is rotated 360 degrees to determine the position of the maximum emission level. The EUT was positioned such that the distance from antenna to the EUT was 3 meters. The antenna is scanned between 1 meter and 4 meters to find out the maximum emission level. This is repeated for both horizontal and vertical polarization of the antenna. In order to find the maximum emission, all of the interface cables were manipulated according to ANSI C63.10: 2013 on radiated measurement. The resolution bandwidth below 30MHz setting on the field strength meter is 9kHz and 30MHz~1GHz is 120kHz and above 1GHz is 1MHz. Radiated emission measurements below 30MHz are made using Loop Antenna and 30MHz~1GHz are made using broadband Bilog antenna and above 1GHz are made using Horn Antennas. The measurement is divided into the Preliminary Measurement and the Final Measurement. The suspected frequencies are searched for in Preliminary Measurement with the measurement antenna kept pointed at the source of the emission both in azimuth and elevation, with the polarization of the antenna oriented for maximum response. The antenna is pointed at an angle towards the source of the emission, and the EUT is rotated in both height and polarization to maximize the measured emission. The emission is kept within the illumination area of the 3 dB bandwidth of the antenna. The measurement frequency range form 9kHz - 10th Harmonic of fundamental was investigated. Page: 20 of 47 Report No.: 2280273R-RFUSBLEV01-A RBW and VBW Parameter setting: According to C63.10 Section 11.12.2.4 Peak measurement procedure. RBW = as specified in Table 1. VBW 3 x RBW. Table 1 --RBW as a function of frequency Frequency RBW 9-150 kHz 200-300 Hz 0.15-30 MHz 9-10 kHz 30-1000 MHz 100-120 kHz > 1000 MHz 1 MHz According to C63.10 Section 11.12.2.5 Average measurement procedure. RBW = 1MHz. VBW = 10Hz, when duty cycle 98 % VBW 1/T, when duty cycle < 98 % ( T refers to the minimum transmission duration over which the transmitter is on and is transmitting at its maximum power control level for the tested mode of operation.) 2.4GHz band Duty Cycle BLE 1M (%) 62.44 BLE 2M 57.33 Note: Duty Cycle Refer to Section 9. T (ms) 0.3915 1.0750 1/T (Hz) 2554 930 VBW (Hz) 3000 1000 Page: 21 of 47 Report No.: 2280273R-RFUSBLEV01-A 4.4. Test Result of Radiated Emission Page: 22 of 47 Report No.: 2280273R-RFUSBLEV01-A Page: 23 of 47 Report No.: 2280273R-RFUSBLEV01-A Page: 24 of 47 Report No.: 2280273R-RFUSBLEV01-A Charge Mode Page: 25 of 47 Report No.: 2280273R-RFUSBLEV01-A 5. RF Antenna Conducted Test 5.1. Test Setup EUT RF Cable SMA Connecter Spectrum Analyzer 5.2. Limits According to FCC Section 15.247(d). In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is 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, based on either an RF conducted or measurement, provided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of RMS averaging over a time interval, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. 5.3. Test Procedure The EUT was tested according to C63.10:2013 Section 11.11 for compliance to FCC 47CFR 15.247 requirements. Set RBW = 100 kHz, Set VBW> RBW, scan up through 10th harmonic. Page: 26 of 47 Report No.: 2280273R-RFUSBLEV01-A 5.4. Test Result of RF Antenna Conducted Test Product : Test Item : Test Mode : Test Date : Bluetooth Headset RF Antenna Conducted Test Mode 1: Transmit - 1Mbps-BLE 2022/03/25 Figure Channel 39: Note: The above test pattern is synthesized by multiple of the frequency range. Page: 27 of 47 Report No.: 2280273R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset RF Antenna Conducted Test Mode 2: Transmit - 2Mbps-BLE 2022/03/25 Figure Channel 39: Note: The above test pattern is synthesized by multiple of the frequency range. Page: 28 of 47 Report No.: 2280273R-RFUSBLEV01-A 6. Band Edge 6.1. Test Setup RF Conducted Measurement RF Cable EUT SMA Connecter RF Radiated Measurement: Spectrum Analyzer EUT 150cm 3m The height of board band or Dipole Antenna was scanned from 1M to 4M. The distance between antenna and turn table was 3M regards to the standard adopted. RF absorber material on the ground plane. To Receiver Pre- Amplifier Page: 29 of 47 Report No.: 2280273R-RFUSBLEV01-A 6.2. Limit According to FCC Section 15.247(d). In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is 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, based on either an RF conducted or measurement, provided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of RMS averaging over a time interval, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below the general limits specified in Section 15.209(a) is not required. In addition, radiated emissions which fall in the restricted bands, as defined in Section 15.205(a), must also comply with the radiated emission limits specified in Section 15.209(a) (see Section 15.205(c)). 6.3. Test Procedure The EUT was setup according to ANSI C63.10, 2013 and tested according to C63.10:2013 Section 11.12.1 for compliance to FCC 47CFR 15.247 requirements. The EUT is placed on a turn table which is 1.5 meter above ground. The turn table is rotated 360 degrees to determine the position of the maximum emission level. The EUT was positioned such that the distance from antenna to the EUT was 3 meters. The antenna is scanned from 1 meter to 4 meters to find out the maximum emission level. This is repeated for both horizontal and vertical polarization of the antenna. In order to find the maximum emission, all of the interface cables were manipulated according to ANSI C63.10:2013 on radiated measurement. Page: 30 of 47 Report No.: 2280273R-RFUSBLEV01-A RBW and VBW Parameter setting: According to C63.10 Section 11.12.2.4 Peak measurement procedure. RBW = as specified in Table 1. VBW 3 x RBW. Table 1 --RBW as a function of frequency Frequency RBW 9-150 kHz 200-300 Hz 0.15-30 MHz 9-10 kHz 30-1000 MHz 100-120 kHz > 1000 MHz 1 MHz According to C63.10 Section 11.12.2.5 Average measurement procedure. RBW = 1MHz. VBW = 10Hz, when duty cycle 98 % VBW 1/T, when duty cycle < 98 % ( T refers to the minimum transmission duration over which the transmitter is on and is transmitting at its maximum power control level for the tested mode of operation.) 2.4GHz band Duty Cycle (%) BLE 1M 62.44 BLE 2M 57.33 Note: Duty Cycle Refer to Section 9. T (ms) 0.3915 1.0750 1/T (Hz) 2554 930 VBW (Hz) 3000 1000 Page: 31 of 47 Report No.: 2280273R-RFUSBLEV01-A 6.4. Test Result of Band Edge Page: 32 of 47 Report No.: 2280273R-RFUSBLEV01-A Page: 33 of 47 Report No.: 2280273R-RFUSBLEV01-A Page: 34 of 47 Report No.: 2280273R-RFUSBLEV01-A Page: 35 of 47 Report No.: 2280273R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset Band Edge Mode 1: Transmit - 1Mbps-BLE 2022/08/12 Measurement Level (dB) > 20 Figure Channel 00: Result PASS Figure Channel 39: Page: 36 of 47 Report No.: 2280273R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset Band Edge Mode 2: Transmit - 2Mbps-BLE 2022/08/12 Measurement Level (dB) > 20 Figure Channel 00: Result PASS Figure Channel 39: Page: 37 of 47 Report No.: 2280273R-RFUSBLEV01-A 7. 6dB Bandwidth 7.1. Test Setup EUT RF Cable SMA 7.2. Limits The minimum bandwidth shall be at least 500 kHz. Spectrum Analyzer 7.3. Test Procedure The EUT was setup according to ANSI C63.4, 2014; tested according to ANSI C63.10 Section 11.8 for compliance to FCC 47CFR 15.247 requirements. Page: 38 of 47 Report No.: 2280273R-RFUSBLEV01-A 7.4. Test Result of 6dB Bandwidth Product : Test Item : Test Mode : Test Date : Bluetooth Headset 6dB Bandwidth Data Mode 1: Transmit - 1Mbps-BLE 2022/08/12 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measurement Level (kHz) 719 709 714 Required Limit (kHz) >500 >500 >500 Result Pass Pass Pass Figure Channel 19: Page: 39 of 47 Report No.: 2280273R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset 6dB Bandwidth Data Mode 2: Transmit - 2Mbps-BLE 2022/08/12 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measurement Level (kHz) 1268 1268 1268 Required Limit (kHz) >500 >500 >500 Result Pass Pass Pass Figure Channel 39: Page: 40 of 47 Report No.: 2280273R-RFUSBLEV01-A 8. Power Density 8.1. Test Setup EUT RF Cable SMA Spectrum Analyzer 8.2. Limits The transmitted power density averaged over any 1 second interval shall not be greater +8dBm in any 3kHz bandwidth. 8.3. Test Procedure The EUT was setup according to ANSI C63.10, 2013; tested according to DTS test procedure of KDB 558074 for compliance to FCC 47CFR 15.247 requirements. The maximum power spectral density using C63.10 Section 11.10.2 Method PKPSD (peak PSD) Page: 41 of 47 Report No.: 2280273R-RFUSBLEV01-A 8.4. Test Result of Power Density Product : Test Item : Test Mode : Test Date : Bluetooth Headset Power Density Data Mode 1: Transmit - 1Mbps-BLE 2022/08/12 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measure Level (dBm) -13.05 -13.04 -12.96 Limit (dBm) 8dBm 8dBm 8dBm Figure Channel 39: Result Pass Pass Pass Page: 42 of 47 Report No.: 2280273R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset Power Density Data Mode 2: Transmit - 2Mbps-BLE 2022/08/12 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measure Level (dBm) -16.44 -16.53 -16.47 Limit (dBm) 8dBm 8dBm 8dBm Figure Channel 39: Result Pass Pass Pass Page: 43 of 47 Report No.: 2280273R-RFUSBLEV01-A 9. Duty Cycle 9.1. Test Setup EUT RF Cable SMA Spectrum Analyzer 9.2. Test Procedure The EUT was setup according to ANSI C63.10 2013; tested according to ANSI C63.10 2013 for compliance to FCC 47CFR 15.247 requirements. Page: 44 of 47 Report No.: 2280273R-RFUSBLEV01-A 9.3. Test Result of Duty Cycle Product : Test Item : Test Mode : Bluetooth Headset Duty Cycle Mode 1: Transmit - 1Mbps-BLE Formula: Duty Cycle = Ton / (Ton + Toff) Duty Factor = 10 Log (1/Duty Cycle) 2.4GHz Band BLE 1M Ton (ms) 0.3915 Ton + Toff (ms) 0.6270 Duty Cycle (%) 62.44 Duty Factor (dB) 2.05 BLE 1M Page: 45 of 47 Report No.: 2280273R-RFUSBLEV01-A Product : Test Item : Test Mode : Bluetooth Headset Duty Cycle Mode 2: Transmit - 2Mbps-BLE Formula: Duty Cycle = Ton / (Ton + Toff) Duty Factor = 10 Log (1/Duty Cycle) 2.4GHz Band BLE 2M Ton (ms) 1.0750 Ton + Toff (ms) 1.8750 Duty Cycle (%) 57.33 Duty Factor (dB) 2.42 BLE 2M Page: 46 of 47 Report No.: 2280273R-RFUSBLEV01-A 10. EMI Reduction Method During Compliance Testing No modification was made during testing. Page: 47 of 47
Related FCC IDs:
- BCE-HSC170W - GN Audio USA Inc. Jabra HSC170W Bluetooth Headset [-HSC170W] Acrobat Distiller 17.0 (Windows)