22B0954R-RFUSBLEV01-A Report-GN(HSC190W)-Version (V1.0) FCC-15.247 -BLE(1,2 Mbps)
A316204
Test Report - BLE
GN Audio USA Inc. HSC190W Bluetooth Headset BCE-HSC190W BCEHSC190W hsc190w
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Document DEVICE REPORTGetApplicationAttachment.html?id=6399192Report No.: 22B0954R-RFUSBLEV01-A Test Report Product Name Bluetooth Headset Model No. HSC190W FCC ID BCE-HSC190W Applicant GN Audio USA Inc. Address 900 Chelmsfort St, Tower 2, Floor 8 , Lowell, Massachusetts, 01851 United States Date of Receipt Issued Date Report No. Report Version Nov. 28, 2022 Feb. 03, 2023 22B0954R-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 45 Report No.: 22B0954R-RFUSBLEV01-A Test Report Product Name Bluetooth Headset Applicant GN Audio USA Inc. Address 900 Chelmsfort St, Tower 2, Floor 8 , Lowell, Massachusetts, 01851 United States Manufacturer GN Audio A/S Model No. HSC190W FCC ID BCE-HSC190W EUT Rated Voltage DC 5V by USB or DC 3.8V 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 45 Report No.: 22B0954R-RFUSBLEV01-A TABLE OF CONTENTS 1. General Information........................................................................................................................6 1.1. EUT Description......................................................................................................................................6 1.2. Tested System Details..............................................................................................................................8 1.3. Configuration of Tested System ..............................................................................................................8 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 Page: 3 of 45 Report No.: 22B0954R-RFUSBLEV01-A 6.4. Test Result of Band Edge ......................................................................................................................32 7. 6dB Bandwidth ..............................................................................................................................36 7.1. Test Setup ..............................................................................................................................................36 7.2. Limits.....................................................................................................................................................36 7.3. Test Procedure .......................................................................................................................................36 7.4. Test Result of 6dB Bandwidth...............................................................................................................37 8. Power Density.................................................................................................................................39 8.1. Test Setup ..............................................................................................................................................39 8.2. Limits.....................................................................................................................................................39 8.3. Test Procedure .......................................................................................................................................39 8.4. Test Result of Power Density ................................................................................................................40 9. Duty Cycle ......................................................................................................................................42 9.1. Test Setup ..............................................................................................................................................42 9.2. Test Procedure .......................................................................................................................................42 9.3. Test Result of Duty Cycle......................................................................................................................43 10. EMI Reduction Method During Compliance Testing ................................................................45 Appendix 1: EUT Test Photographs Appendix 2: Product Photos-Please refer to the file: 22B0954R -Product Photos Page: 4 of 45 Report No.: 22B0954R-RFUSBLEV01-A Revision History Report No. 22B0954R-RFUSBLEV01-A Version V1.0 Description Initial issue of report. Issued Date Feb. 03, 2023 Page: 5 of 45 Report No.: 22B0954R-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 Channel Control Antenna Gain Type C to Type C Cable Type C to USB Cable Bluetooth USB Dongle Bluetooth USB Dongle Wireless charger Wireless charger Bluetooth Headset Jabra HSC190W BCE-HSC190W 2402 - 2480 MHz Bluetooth V5.1: 40 CH Bluetooth V5.1: GFSK(1 Mbps, 2 Mbps) PIFA Auto Refer to the Antenna List Shielded, 1.2m Shielded, 1.2m MFR: GN Audio A/S, M/N: END050W, FCC ID: BCE-END050W MFR: GN Audio A/S, M/N: END060W, FCC ID: BCE-END060W MFR: GN Audio A/S, M/N: 5190004, FCC ID: BCE-5190004 MFR: GN Audio A/S, M/N: WH-WI-022, FCC ID: BCE-WH-WI-022 Antenna List No. Manufacturer Part No. Antenna Type 1 GN Audio A/S Jabra Evolve2 65 Flex PIFA Note: The antenna of EUT is conforming to FCC 15.203. Peak Gain 2.66 dBi for 2400 MHz Page: 6 of 45 Report No.: 22B0954R-RFUSBLEV01-A Center Frequency of Each Channel: Frequency Frequency Frequency Frequency Channel Channel Channel Channel (MHz) (MHz) (MHz) (MHz) 00 2402 01 2404 02 2406 03 2408 04 2410 05 2412 06 2414 07 2416 08 2418 09 2420 10 2422 11 2424 12 2426 13 2428 14 2430 15 2432 16 2434 17 2436 18 2438 19 2440 20 2442 21 2444 22 2446 23 2448 24 2450 25 2452 26 2454 27 2456 28 2458 29 2460 30 2462 31 2464 32 2466 33 2468 34 2470 35 2472 36 2474 37 2476 38 2478 39 2480 Note: 1. The EUT is a Bluetooth Headset with built-in Bluetooth transceiver, this report for Bluetooth V5.1. 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. 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 - 1 Mbps-BLE Transmit - 2 Mbps-BLE Page: 7 of 45 Report No.: 22B0954R-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: Product 1 Notebook PC Manufacturer Model No. DELL Latitude 5580 Serial No. GDZN7H2 Power Cord N/A Cable Type A Type C to USB Cable Cable Description Non-Shielded, 1.2m 1.3. Configuration of Tested System 1.4. EUT Exercise Software (1) Setup the EUT as shown in Section 1.3. (2) Execute software `Bluetest3 Ver.3.3.5' on the Notebook PC. (3) Configure the test mode, the test channel, and the data rate. (4) Verify that the EUT works properly. Page: 8 of 45 Report No.: 22B0954R-RFUSBLEV01-A 1.5. Test Facility Ambient conditions in the laboratory: Performed Item Items Temperature (°C) Conducted Emission 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 % 20.2 65.8 % 22.0 55.0 % USA Canada : FCC Registration Number: TW0033 : 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 : +886-3-327-8031 Email Address : [email protected] Website : http://www.dekra.com.tw Page: 9 of 45 Report No.: 22B0954R-RFUSBLEV01-A 1.6. List of Test Equipment For Conduction Measurements /HY-SR01 Equipment Manufacturer Model No. Serial No. Cal. Date Due Date V EMI Test Receiver R&S ESR7 101601 2022/06/23 2023/06/22 V Two-Line V-Network R&S ENV216 101306 2022/05/23 2023/05/22 V Two-Line V-Network R&S ENV216 101307 2022/05/04 2023/05/03 V Coaxial Cable SUHNER RG400_BNC RF001 2022/05/24 2023/05/23 Note: 1. All equipments are calibrated every one year. 2. The test instruments marked with "V" are used to measure the final test results. 3. Test Software Version : E3 210616 dekra V9. For Conducted Measurements /HY-SR02 Equipment Manufacturer Model No. Serial No. Cal. Date V Spectrum Analyzer R&S FSV40 101149 2022/10/03 V Peak Power Analyzer KEYSIGHT 8990B MY51000410 2022/08/06 V Wideband Power Sensor KEYSIGHT N1923A MY56080003 2022/08/05 V Wideband Power Sensor KEYSIGHT N1923A MY56080004 2022/08/05 Note: 1. All equipments are calibrated every one year. 2. The test instruments marked with "V" are used to measure the final test results. 3. Test Software Version : RF Conducted Test Tools R3 V3.0.1.14. 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 V Bi-Log Antenna SCHWARZBECK VULB9168 9168-675 2021/08/11 2023/08/10 V Horn Antenna RF SPIN DRH18-E 210503A18ES 2022/06/08 2023/06/07 V Horn Antenna Com-Power AH-840 101100 2021/10/04 2023/10/03 V Pre-Amplifier SGH 0301-9 20211007-11 2022/02/22 2023/02/21 V Pre-Amplifier SGH PRAMP118 20200701 2022/07/28 2023/07/27 V Pre-Amplifier EMCI EMC05820SE 980310 2022/07/28 2023/07/27 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 V Filter MICRO TRONICS BRM50702 G269 2022/07/31 2023/07/30 Filter MICRO TRONICS BRM50716 G196 2022/07/27 2023/07/26 V EMI Test Receiver R&S ESR 102793 2022/12/05 2023/12/04 V Spectrum Analyzer R&S FSV3044 101114 2022/02/11 2023/02/10 Coaxial Cable SGH SGH18 2021005-1 V Coaxial Coaxial Cable Cable SGH SGH SGH18 HA800 202108-4 GD20110223-1 2022/3/18 2023/03/17 Coaxial Cable SGH HA800 GD20110222-3 Note: 1. Bi-Log Antenna and Horn Antenna(AH-840) is calibrated every two years, the other equipments are calibrated every one year. 2. The test instruments marked with "V" are used to measure the final test results. 3. Test Software Version : E3 210616 dekra V9. Page: 10 of 45 Report No.: 22B0954R-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 ±0.89dB Under 1 GHz Above 1 GHz ±4.05 dB ±3.73 dB ±2.06 dB Under 1 GHz Above 1 GHz ±4.05 dB ±3.73 dB ±1544.74 Hz ±2.06 dB ±2.31 ms Page: 11 of 45 Report No.: 22B0954R-RFUSBLEV01-A 2. Conducted Emission 2.1. Test Setup Test Receiver 12dBµV Reference Plane 40cm EUT Load LISN Ground Plane LISN LISN 2.2. Limits Frequency MHz FCC Part 15 Subpart C Paragraph 15.207 (dBµV) Limit 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 45 Report No.: 22B0954R-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 0.15 MHz to 30 MHz using a receiver bandwidth of 9 kHz. 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 45 Report No.: 22B0954R-RFUSBLEV01-A 2.4. Test Result of Conducted Emission Page: 14 of 45 Report No.: 22B0954R-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 45 Report No.: 22B0954R-RFUSBLEV01-A 3.4. Test Result of Peak Power Output Product Test Item Test Mode Test Date : Bluetooth Headset : Peak Power Output : Transmit - 1 Mbps-BLE : 2022/12/06 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measurement (dBm) 7.26 7.20 7.16 Required Limit 1 Watt= 30 dBm 1 Watt= 30 dBm 1 Watt= 30 dBm Result Pass Pass Pass Page: 16 of 45 Report No.: 22B0954R-RFUSBLEV01-A Product Test Item Test Mode Test Date : Bluetooth Headset : Peak Power Output : Transmit - 2 Mbps-BLE : 2022/12/06 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measurement (dBm) 7.26 7.20 7.16 Required Limit 1 Watt= 30 dBm 1 Watt= 30 dBm 1 Watt= 30 dBm Result Pass Pass Pass Page: 17 of 45 Report No.: 22B0954R-RFUSBLEV01-A 4. Radiated Emission 4.1. Test Setup Radiated Emission Under 30 MHz 3m Non-Conducted Table Test Receiver EUT 80cm Antenna Mast Broadband or Loop Antenna Antenna height is1m. Fully soldered Metal Ground 1m To Receiver Radiated Emission Below 1 GHz 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 1 GHz 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 45 Report No.: 22B0954R-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 0.009-0.490 Field strength (microvolts/meter) 2400/F(kHz) Measurement distance (meter) 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 (dBµV) = 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 45 Report No.: 22B0954R-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 1 GHz, the EUT is placed on a turn table which is 0.8 meter above ground, when measuring the frequency range above 1 GHz, 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 30 MHz setting on the field strength meter is 9 kHz and 30 MHz~1 GHz is 120 kHz and above 1 GHz is 1 MHz. Radiated emission measurements below 30 MHz are made using Loop Antenna and 30 MHz~1 GHz are made using broadband Bilog antenna and above 1 GHz 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 9 kHz - 10th Harmonic of fundamental was investigated. Page: 20 of 45 Report No.: 22B0954R-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 = 1 MHz. VBW = 10 Hz, 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 T 1/T (%) (ms) (Hz) BLE (1 Mbps) 84.80 2.1200 472 BLE (2 Mbps) 56.38 1.0600 943 Note: Duty Cycle Refer to Section 9. VBW (Hz) 500 1000 Page: 21 of 45 Report No.: 22B0954R-RFUSBLEV01-A 4.4. Test Result of Radiated Emission Page: 22 of 45 Report No.: 22B0954R-RFUSBLEV01-A Page: 23 of 45 Report No.: 22B0954R-RFUSBLEV01-A Page: 24 of 45 Report No.: 22B0954R-RFUSBLEV01-A Page: 25 of 45 Report No.: 22B0954R-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 45 Report No.: 22B0954R-RFUSBLEV01-A 5.4. Test Result of RF Antenna Conducted Test Product : Test Item : Test Mode : Test Date : Bluetooth Headset RF Antenna Conducted Test Transmit - 1 Mbps-BLE 2022/12/12 Figure Channel 39: Note: The above test pattern is synthesized by multiple of the frequency range. Page: 27 of 45 Report No.: 22B0954R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset RF Antenna Conducted Test Transmit - 2 Mbps-BLE 2022/12/12 Figure Channel 39: Note: The above test pattern is synthesized by multiple of the frequency range. Page: 28 of 45 Report No.: 22B0954R-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 45 Report No.: 22B0954R-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 45 Report No.: 22B0954R-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 = 1 MHz. VBW = 10 Hz, 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 T 1/T (%) (ms) (Hz) BLE (1 Mbps) 84.80 2.1200 472 BLE (2 Mbps) 56.38 1.0600 943 Note: Duty Cycle Refer to Section 9. VBW (Hz) 500 1000 Page: 31 of 45 Report No.: 22B0954R-RFUSBLEV01-A 6.4. Test Result of Band Edge Page: 32 of 45 Report No.: 22B0954R-RFUSBLEV01-A Page: 33 of 45 Report No.: 22B0954R-RFUSBLEV01-A Page: 34 of 45 Report No.: 22B0954R-RFUSBLEV01-A Page: 35 of 45 Report No.: 22B0954R-RFUSBLEV01-A 7. 6dB Bandwidth 7.1. Test Setup EUT RF Cable SMA Spectrum Analyzer 7.2. Limits The minimum bandwidth shall be at least 500 kHz. 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: 36 of 45 Report No.: 22B0954R-RFUSBLEV01-A 7.4. Test Result of 6dB Bandwidth Product : Test Item : Test Mode : Test Date : Bluetooth Headset 6dB Bandwidth Data Transmit - 1 Mbps-BLE 2022/12/12 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measurement Level (kHz) 709 704 704 Required Limit (kHz) >500 >500 >500 Figure Channel 39: Result Pass Pass Pass Page: 37 of 45 Report No.: 22B0954R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset 6dB Bandwidth Data Transmit - 2 Mbps-BLE 2022/12/12 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measurement Level (kHz) 1268 1268 1268 Required Limit (kHz) >500 >500 >500 Figure Channel 39: Result Pass Pass Pass Page: 38 of 45 Report No.: 22B0954R-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 3 kHz 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: 39 of 45 Report No.: 22B0954R-RFUSBLEV01-A 8.4. Test Result of Power Density Product : Test Item : Test Mode : Test Date : Bluetooth Headset Power Density Data Transmit - 1 Mbps-BLE 2022/12/12 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measure Level (dBm) -10.32 -10.17 -10.02 Figure Channel 39: Limit (dBm) 8dBm 8dBm 8dBm Result Pass Pass Pass Page: 40 of 45 Report No.: 22B0954R-RFUSBLEV01-A Product : Test Item : Test Mode : Test Date : Bluetooth Headset Power Density Data Transmit - 2 Mbps-BLE 2022/12/12 Channel No. 00 19 39 Frequency (MHz) 2402 2440 2480 Measure Level (dBm) -11.49 -11.17 -11.12 Figure Channel 39: Limit (dBm) 8dBm 8dBm 8dBm Result Pass Pass Pass Page: 41 of 45 Report No.: 22B0954R-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: 42 of 45 Report No.: 22B0954R-RFUSBLEV01-A 9.3. Test Result of Duty Cycle Product : Test Item : Test Mode : Bluetooth Headset Duty Cycle Transmit Formula: Duty Cycle = Ton / (Ton + Toff) Duty Factor = 10 Log (1/Duty Cycle) 2.4GHz Band BLE (1 Mbps) BLE (2 Mbps) Ton (ms) 2.1200 1.0600 Ton + Toff (ms) 2.5000 1.8800 Duty Cycle (%) 84.80 56.38 Duty Factor (dB) 0.72 2.49 Page: 43 of 45 Report No.: 22B0954R-RFUSBLEV01-A BLE 1M BLE 2M Page: 44 of 45 Report No.: 22B0954R-RFUSBLEV01-A 10. EMI Reduction Method During Compliance Testing No modification was made during testing. Page: 45 of 45
Related FCC IDs:
- BCE-HSC190W - GN Audio USA Inc. Bluetooth Headset [-HSC190W] Acrobat Distiller 17.0 (Windows)