Dongguan Hele Electronics Co., Ltd. BH24QT35AR RDR-BH24QT35AR RDRBH24QT35AR bh24qt35ar
Website: www.cblueasia.com Tel: +86-755-23059481 Email: marketing@cblueasia.com Test Report Applicant Address Product Name Brand Mark Model FCC ID Report Number Date of Receipt Date of Test Test Standard Test Result : Dongguan Hele Electronics Co.,Ltd : No.325 Yuehui Rd. Daojiao Town Dongguan City Guangdong Province China : TWS bluetooth earbuds : QCY : BH24QT35A : RDR-BH24QT35AR : BLA-EMC-202408-A2102 : 2024.09.26 : 2024.09.26 to 2024.10.16 : 47 CFR Part 15, Subpart C 15.247 : Pass Compiled by: Review by: Approved by: Issued Date: 2024.10.16 BlueAsia of Technical Services(Shenzhen) Co.,Ltd. Address: Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China The test report is effective only with both signature and specialized stamp and The result(s) shown in this report refer only to the sample(s) tested. Without written approval of BlueAsia, this report can't be reproduced except in full. The results described in this report do not represent the quality or characteristics of the sampled batch, nor do they represent any similar or identical products that are not explicitly stated. Report No.: BLA-EMC-202408-A2102 Page 2 of 70 Table of Contents 1 General information ................................................................................................................................................4 1.1 General information ..........................................................................................................................................4 1.2 General description of EUT ..............................................................................................................................4 2 Test summary .......................................................................................................................................................... 5 3 Test Configuration .................................................................................................................................................. 6 3.1 Test mode ......................................................................................................................................................... 6 3.2 Operation Frequency each of channel .............................................................................................................7 3.3 Test channel ..................................................................................................................................................... 7 3.4 Configuration diagram of EUT ..........................................................................................................................7 3.5 Auxiliary equipment .......................................................................................................................................... 8 3.6 Test environment .............................................................................................................................................. 8 4 Laboratory information .......................................................................................................................................... 9 4.1 Laboratory and accreditations ..........................................................................................................................9 4.2 Measurement uncertainty .................................................................................................................................9 5 Test equipment ......................................................................................................................................................10 6 Test result .............................................................................................................................................................. 12 6.1 Antenna requirement ......................................................................................................................................12 6.2 Conducted emissions at AC power line (150 kHz-30 MHz) ...........................................................................13 6.3 Conducted peak output Power .......................................................................................................................17 6.4 Minimum 6dB bandwidth ................................................................................................................................18 6.5 Power spectrum density .................................................................................................................................19 6.6 Conducted Band Edges Measurement .......................................................................................................... 20 6.7 Conducted spurious emissions ...................................................................................................................... 21 6.8 Radiated spurious emissions ......................................................................................................................... 22 6.9 Radiated emissions which fall in the restricted bands ................................................................................... 33 7 Appendix A ............................................................................................................................................................ 40 Appendix B: photographs of test setup ......................................................................................................................68 Appendix C: photographs of EUT ................................................................................................................................70 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Version No. 01 Report No.: BLA-EMC-202408-A2102 Page 3 of 70 Revise Record Date 2024.10.16 Description Original BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 4 of 70 1 General information 1.1 General information Applicant Address Manufacturer Address Factory Address Dongguan Hele Electronics Co.,Ltd No.325 Yuehui Rd. Daojiao Town Dongguan City Guangdong Province China Dongguan Hele Electronics Co.,Ltd No.325 Yuehui Rd. Daojiao Town Dongguan City Guangdong Province China N/A N/A 1.2 General description of EUT Product Name TWS bluetooth earbuds Model No. BH24QT35A Series model N/A Test sample no. BLA-EMC-202408-A21-right Operation Frequency: 2402MHz-2480MHz Modulation Type: GFSK Rate data: 1Mbps; 2Mbps Channel Spacing: 2MHz Number of Channels: 40 Antenna Type: Internal antenna Antenna Gain: Power supply or adapter information Hardware Version -1.37 dBi (Provided by customer) Earphone: DC3.85V Base: DC3.7V V1 Software Version V1 Note: For a more detailed description, please refer to Specification or User's Manual supplied by the applicant and/or manufacturer. BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 5 of 70 2 Test summary No. Test item 1 Antenna Requirement 2 Conducted Emissions at AC Power Line (150kHz-30MHz) 3 Conducted Peak Output Power 4 Minimum 6dB Bandwidth 5 Power Spectrum Density 6 Conducted Band Edges Measurement 7 Conducted Spurious Emissions 8 Radiated Spurious Emissions 9 Radiated Emissions which fall in the restricted bands Result Pass Pass Pass Pass Pass Pass Pass Pass Pass Remark BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 6 of 70 3 Test Configuration 3.1 Test mode Test Mode Note 1 Description TX Keep the EUT in continuously transmitting with modulation mode. RX Keep the EUT in receiving mode TX Low channel Keep the EUT in continuously transmitting mode in low channel TX middle channel Keep the EUT in continuously transmitting mode in middle channel TX high channel Keep the EUT in continuously transmitting mode in high channel Note 1: The EUT was configured to measure its highest possible emission and/or immunity level. The test modes were adapted according to the operation manual for use; the EUT was operated in the engineering mode Note 2 to fix the TX or Rx frequency that was for the purpose of the measurements. Note 2: Special software is used. The software provided by client to enable the EUT under transmission condition continuously at specific channel frequencies individually. Test Software Name Mode GFSK Power level setup in software FCC Assist 1.0.2.2 Channel Frequency (MHz) CH00 2402 CH20 2442 CH39 2480 Soft Set TX level : 10 Run Software BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 7 of 70 3.2 Operation Frequency each of channel Channel 0 1 ... 8 9 Frequency 2402MHz 2404MHz ... 2418MHz 2420MHz Channel 10 11 ... 18 19 Frequency 2422MHz 2424MHz ... 2438MHz 2440MHz Channel 20 21 ... 28 29 Frequency 2442MHz 2444MHz ... 2458MHz 2460MHz Channel 30 31 ... 38 39 Frequency 2462MHz 2464MHz ... 2478MHz 2480MHz 3.3 Test channel Channel The lowest channel The middle channel The Highest channel 3.4 Configuration diagram of EUT Frequency 2402MHz 2442MHz 2480MHz (1) PC (2) FFB EUT AC Support equipment Name (1) (2) Device type PC Fixed frequency board Brand Lenovo N/A Mode E460C N/A Series No N/A N/A Remark N/A N/A BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 3.5 Auxiliary equipment Device Type Manufacturer Model Name PC Lenovo E460C Note: "--" mean no any auxiliary device during testing. Report No.: BLA-EMC-202408-A2102 Page 8 of 70 Serial No. N/A Remark From lab (No.BLA-ZC-BS-2022005) 3.6 Test environment Environment Normal Temperature 25°C Voltage DC 3.7V BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 9 of 70 4 Laboratory information 4.1 Laboratory and accreditations The test facility is recognized, certified, or accredited by the following organizations: Company name: BlueAsia of Technical Services(Shenzhen) Co., Ltd. Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Address: Shenzhen, Guangdong Province, China CNAS accredited No.: L9788 A2LA Cert. No.: 5071.01 FCC Designation No.: CN1252 ISED CAB identifier No.: CN0028 Telephone: +86-755-28682673 FAX: +86-755-28682673 4.2 Measurement uncertainty This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=1.96. Parameter Expanded Uncertainty Radiated Emission(9kHz-30MHz) Radiated Emission(30Mz-1000MHz) Radiated Emission(1GHz-18GHz) AC Power Line Conducted Emission(150kHz-30MHz) Occupied Channel Bandwidth RF output power, conducted Power Spectral Density, conducted Unwanted Emissions, conducted Temperature Supply voltages Time 4.34dB 4.24dB 4.68dB 3.45dB ±5 % ±1.5 dB ±3.0 dB ±3.0 dB ±3 °C ±3 % ±5 % BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 10 of 70 5 Test equipment RF conducted Equipment BLA-EMC-003-003 BLA-EMC-016 BLA-EMC-038 Name Shield room Signal Generator Spectrum Model 5*3*3 N5182A N9020A BLA-EMC-042 BLA-EMC-044 BLA-EMC-064 BLA-EMC-079 Power sensor Radio communication tester Signal Generator Spectrum RPR3006W CMW500 N5182B N9020A BLA-EMC-088 Audio Analyzer ATS-1 Radiated Spurious Emissions (Below 1GHz) Equipment BLA-EMC-002-01 BLA-EMC-002-02 BLA-EMC-009 BLA-EMC-043 BLA-EMC-065 BLA-XC-01 BLA-XC-02 Name Anechoic chamber Control room EMI receiver Loop antenna Broadband antenna Coaxial Cable Coaxial Cable Model 9*6*6 chamber 966 control room ESR7 FMZB1519B VULB9168 N/A N/A Conducted Emissions Equipment BLA-EMC-003-001 BLA-EMC-009 BLA-EMC-011 BLA-EMC-033 BLA-EMC-041 BLA-EMC-045 BLA-EMC-095 BLA-EMC-096 BLA-XC-05 Name Shield room EMI receiver LISN Impedance transformer LISN Impedance stable network Single-channel vehicle artificial power network Single-channel vehicle artificial power network Coaxial Cable Model 8*3*3 ESR7 ENV216 DC-2GHz AT166-2 ISNT8-cat 6 NNBM 8124 NNBM 8124 N/A Manufacture SKET Agilent Agilent DARE S/N N/A MY52420 567 MY49100 060 14I00889 SN042 R&S 132429 KEYSIGHT Agilent Audio Precision MY58108 892 MY54420 161 ATS1410 94 Manufacture SKET SKET R&S Schwarzbeck Schwarzbeck BlueAsia BlueAsia S/N N/A N/A 101199 00102 01065P V01 V02 Manufactu re SKET R&S R&S DFXP ATTEN TESEQ S/N N/A 101199 101372 N/A AKK180600 0003 53580 Schwarzbe ck 01045 Schwarzbe ck BlueAsia 01075 V05 Cal. Date 2023/11/16 2024/06/28 2024/08/08 2024/08/08 2024/08/08 2024/06/28 2024/08/08 2024/06/28 Cal. Date 2024/3/27 2024/3/27 2024/08/08 2024/06/29 2024/06/29 N/A N/A Cal. Date 2023/11/16 2024/08/08 2024/08/08 2024/06/28 2024/08/08 2024/08/08 2024/06/28 2024/06/28 N/A Due. Date 2025/11/15 2025/06/27 2025/08/07 2025/08/07 2025/08/07 2025/06/27 2025/08/07 2025/06/27 Due. Date 2027/3/26 2027/3/26 2025/08/07 2026/06/28 2026/06/27 N/A N/A Due. Date 2025/11/15 2025/08/07 2025/08/07 2025/06/27 2025/08/07 2025/08/07 2025/06/27 2025/06/27 N/A BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 11 of 70 Radiated Spurious Emissions (Above 1GHz) Equipment BLA-EMC-001-01 BLA-EMC-001-02 BLA-EMC-008 BLA-EMC-012 BLA-EMC-013 BLA-EMC-014 BLA-EMC-046 BLA-EMC-061 BLA-EMC-066 BLA-EMC-086 BLA-EMC-087 BLA-XC-03 BLA-XC-04 Name Anechoic chamber Control Room Spectrum Broadband antenna Horn Antenna Amplifier Filter bank Receiver Amplifier Amplifier Horn Antenna Coaxial Cable Coaxial Cable Model 9*6*6 chamber 966 control room FSP40 VULB9168 BBHA9120D PA_000318G- 45 2.4G/5G Filter bank ESPI7 LNPA_30M01 G-30 LNPA_18G40 G-50dB BBHA 9170 N/A N/A Manufacture SKET SKET R&S Schwarzbeck Schwarzbeck SKET SKET R&S SKET SKET Schwarzbeck BlueAsia BlueAsia S/N N/A N/A 100817 00836 P:00227 01892 PA201804 3003 N/A 101477 SK202106 0801 SK202207 1301 1106 V03 V04 Cal. Date 2023/11/16 2023/11/16 2024/08/08 2022/10/12 2024/06/29 2024/08/08 2024/06/28 2024/06/28 2024/06/28 2024/06/28 2024/06/29 N/A N/A Due. Date 2026/11/15 2025/11/15 2025/08/07 2025/10/11 2026/06/28 2025/08/07 2025/06/27 2025/06/27 2025/06/27 2025/06/27 2026/06/28 N/A N/A Test Software Record Software No. Software Name BLA-EMC-S001 EZ-EMC BLA-EMC-S002 EZ-EMC BLA-EMC-S003 EZ-EMC BLA-EMC-S010 BLA-EMC-S014 MTS 8310 Bluetooth and WiFi Test System Manufacture EZ EZ EZ MW Tonscend Software version EEMC-3A1+ EEMC-3A1+ EEMC-3A1+ 2.0.0.0 2.5.77.0418 Test site RE RE CE RF RF BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 12 of 70 6 Test result 6.1 Antenna requirement Test Standard Test Method 47 CFR Part 15, Subpart C 15.247 N/A 6.1.1 Requirement An intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. The use of an antenna that uses a unique coupling to the intentional radiator, the manufacturer may design the unit permanently attached antenna or of a so that a broken antenna can be replaced by the user, but the use of a standard antenna jack or electrical connector is prohibited. EUT antenna: The antenna is integrated on the main PCB and no consideration of replacement. The best case gain of the antenna is-1.37 dBi. BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 13 of 70 6.2 Conducted emissions at AC power line (150 kHz-30 MHz) Test Standard Test Method Test Mode (Pre-Scan) Test Mode (Final Test) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.2 TX TX 6.2.1 Limit Frequency of emission(MHz) Conducted limit(dBV) Quasi-peak Average 0.15-0.5 66 to 56* 56 to 46* 0.5-5 56 46 5-30 60 50 *Decreases with the logarithm of the frequency. 6.2.2 Test setup Description of test setup connection: a) Connect the control PC to the receiver through a USB to GPIB cable; b) The receiver is connected to the LISN through a coaxial line; c) Connect the power port of LISN to the EUT. BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 14 of 70 6.2.3 Procedure 1) The mains terminal disturbance voltage test was conducted in a shielded room. 2) The EUT was connected to AC power source through a LISN 1 (Line Impedance Stabilization Network) which provides a 50ohm/50H + 5ohm linear impedance. The power cables of all other units of the EUT were connected to a second LISN 2, which was bonded to the ground reference plane in the same way as the LISN 1 for the unit being measured. A multiple socket outlet strip was used to connect multiple power cables to a single LISN provided the rating of the LISN was not exceeded. 3) The tabletop EUT was placed upon a non-metallic table 0.8m above the ground reference plane. And for floor-standing arrangement, the EUT was placed on the horizontal ground reference plane, 4) The test was performed with a vertical ground reference plane. The rear of the EUT shall be 0.4 m from the vertical ground reference plane. The vertical ground reference plane was bonded to the horizontal ground reference plane. The LISN 1 was placed 0.8 m from the boundary of the unit under test and bonded to a ground reference plane for LISNs mounted on top of the ground reference plane. This distance was between the closest points of the LISN 1 and the EUT. All other units of the EUT and associated equipment was at least 0.8 m from the LISN 2. 5) In order to find the maximum emission, the relative positions of equipment and all of the interface cables must be changed according to ANSI C63.10 on conducted measurement. LISN=Read Level+ Cable Loss+ LISN Factor BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 15 of 70 6.2.4 Test data [Test mode: TX]; [Line: Line];[Power:AC120V/60Hz] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 16 of 70 [Test mode: TX]; [Line: Neutral];[Power:AC120V/60Hz] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.3 Conducted peak output Power Report No.: BLA-EMC-202408-A2102 Page 17 of 70 Test Standard Test Method Test Mode (Pre-Scan) Test Mode (Final Test) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 7.8.5 TX TX 6.3.1 Limit Frequency range(MHz) 902-928 2400-2483.5 5725-5850 6.3.2 Test setup Output power of the intentional radiator(watt) 1 for 50 hopping channels 0.25 for 25 hopping channels <50 1 for digital modulation 1 for 75 non-overlapping hopping channels 0.125 for all other frequency hopping systems 1 for digital modulation 1 for frequency hopping systems and digital modulation 6.3.3 Test data Pass: Please refer to appendix A for details BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.4 Minimum 6dB bandwidth Report No.: BLA-EMC-202408-A2102 Page 18 of 70 Test Standard Test Method Test Mode (Pre-Scan) Test Mode (Final Test) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.8.1 TX TX 6.4.1 Limit 500 kHz 6.4.2 Test setup 6.4.3 Test data Pass: Please refer to appendix A for details BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.5 Power spectrum density Report No.: BLA-EMC-202408-A2102 Page 19 of 70 Test Standard Test Method Test Mode (Pre-Scan) Test Mode (Final Test) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.10.2 TX TX 6.5.1 Limit 8dBm in any 3 kHz band during any time interval of continuous transmission 6.5.2 Test setup 6.5.3 Test data Pass: Please refer to appendix A for details BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.6 Conducted Band Edges Measurement Report No.: BLA-EMC-202408-A2102 Page 20 of 70 Test Standard Test Method Test Mode (Pre-Scan) Test Mode (Final Test) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 7.8.8 & Section 11.13.3.2 TX TX 6.6.1 Limit 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 a radiated 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, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20dB. Attenuation below the general limits specified in §15.209(a) is not required. In addition, radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated emission limits specified in §15.209(a) (see §15.205(c)). 6.6.2 Test setup 6.6.3 Test data Pass: Please refer to appendix A for details BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.7 Conducted spurious emissions Report No.: BLA-EMC-202408-A2102 Page 21 of 70 Test Standard Test Method Test Mode (Pre-Scan) Test Mode (Final Test) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 7.8.6 & Section 11.11 TX TX 6.7.1 Limit 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 a radiated 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, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20dB. Attenuation below the general limits specified in §15.209(a) is not required. In addition, radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated emission limits specified in §15.209(a) (see §15.205(c)). 6.7.2 Test setup 6.7.3 Test data Pass: Please refer to appendix A for details BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.8 Radiated spurious emissions Report No.: BLA-EMC-202408-A2102 Page 22 of 70 Test Standard Test Method Test Mode (Pre-Scan) Test Mode (Final Test) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.4,6.5,6.6 TX TX 6.8.1 Limit Frequency(MHz) Field strength(microvolts/meter) Measurement distance(meters) 0.009-0.490 2400/F(kHz) 300 0.490-1.705 24000/F(kHz) 30 1.705-30.0 30 30 30-88 100 3 88-216 150 3 216-960 200 3 Above 960 500 3 Remark: The emission limits shown in the above table are based on measurements employing a CISPR quasi-peak detector except for the frequency bands 9-90kHz, 110-490kHz and above 1000MHz. Radiated emission limits in these three bands are based on measurements employing an average detector, the peak field strength of any emission shall not exceed the maximum permitted average limits specified above by more than 20 dB under any condition of modulation. BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.8.2 Test setup Below 1GHz Report No.: BLA-EMC-202408-A2102 Page 23 of 70 30MHz-1GHz Above 1GHz BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 24 of 70 6.8.3 Procedure a) For below 1GHz, the EUT was placed on the top of a rotating table 0.8 meters above the ground at a 3 or 10 meter semi-anechoic chamber. The table was rotated 360 degrees to determine the position of the highest radiation. b) For above 1GHz, the EUT was placed on the top of a rotating table 1.5 meters above the ground at a 3 meter fully-anechoic chamber. The table was rotated 360 degrees to determine the position of the highest radiation. c) The EUT was set 3 or 10 meters away from the interference-receiving antenna, which was mounted on the top of a variable-height antenna tower. d) The antenna height is varied from one meter to four meters above the ground to determine the maximum value of the field strength. Both horizontal and vertical polarizations of the antenna are set to make the measurement. e) For each suspected emission, the EUT was arranged to its worst case and then the antenna was tuned to heights from 1 meter to 4 meters (for the test frequency of below 30MHz, the antenna was tuned to heights 1 meter) and the rotatable table was turned from 0 degrees to 360 degrees to find the maximum reading. f) The test-receiver system was set to Peak Detect Function and Specified Bandwidth with Maximum Hold Mode. g) If the emission level of the EUT in peak mode was 10dB lower than the limit specified, then testing could be stopped and the peak values of the EUT would be reported. Otherwise the emissions that did not have 10dB margin would be re-tested one by one using peak, quasi-peak or average method as specified and then reported in a data sheet. h) Test the EUT in the lowest channel, the middle channel, the highest channel. i) The radiation measurements are performed in X, Y, Z axis positioning for Transmitting mode, and found the X axis positioning which it is the worst case. j) Repeat above procedures until all frequencies measured was complete. Note 1: Scan from 9 kHz to 25GHz, the disturbance above 12.75GHz and below 30MHz was very low. The points marked on above plots are the highest emissions could be found when testing, so only above points had been displayed. The amplitude of spurious emissions from the radiator which are attenuated more than 20dB below the limit need not be reported. Fundamental frequency is blocked by filter, and only spurious emission is shown. Note 2: For frequencies above 1GHz, the field strength limits are based on average limits. However, the peak field strength of any emission shall not exceed the maximum permitted average limits specified above by more than 20 dB under any condition of modulation. For the emissions whose peak level is lower than the average limit, only the peak measurement is shown in the report. Note 3: The field strength is calculated by adding the Antenna Factor, Cable Factor & Preamplifier. The basic equation with a sample calculation is as follows: Level (dBuV) = Reading (dBuV) + Factor (dB/m) BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.8.4 Test data Below 1GHz [Test mode: TX]; [Polarity: Horizontal] Report No.: BLA-EMC-202408-A2102 Page 25 of 70 Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com [Test mode: TX]; [Polarity: Vertical] Report No.: BLA-EMC-202408-A2102 Page 26 of 70 Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 27 of 70 Above 1GHz: Remark: During the test, pre-scan the BLE1M/BLE2M mode, and found the BLE1M mode which it is worse case. [Test mode: TX low channel]; [Polarity: Horizontal] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 28 of 70 [Test mode: TX low channel]; [Polarity: Vertical] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 29 of 70 [Test mode: TX middle channel]; [Polarity: Horizontal] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 30 of 70 [Test mode: TX middle channel]; [Polarity: Vertical] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 31 of 70 [Test mode: TX High channel]; [Polarity: Horizontal] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 32 of 70 [Test mode: TX High channel]; [Polarity: Vertical] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 33 of 70 6.9 Radiated emissions which fall in the restricted bands Test Standard Test Method Test Mode (Pre-Scan) Test Mode (Final Test) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.10.5 TX TX 6.9.1 Limit Frequency(MHz) Field strength(microvolts/meter) Measurement distance(meters) 0.009-0.490 2400/F(kHz) 300 0.490-1.705 24000/F(kHz) 30 1.705-30.0 30 30 30-88 100 3 88-216 150 3 216-960 200 3 Above 960 500 3 Remark: The emission limits shown in the above table are based on measurements employing a CISPR quasi-peak detector except for the frequency bands 9-90kHz, 110-490kHz and above 1000 MHz. Radiated emission limits in these three bands are based on measurements employing an average detector, the peak field strength of any emission shall not exceed the maximum permitted average limits specified above by more than 20 dB under any condition of modulation. BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 6.9.2 Test setup Below 1GHz Report No.: BLA-EMC-202408-A2102 Page 34 of 70 30MHz-1GHz Above 1GHz BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 35 of 70 6.9.3 Procedure a) For below 1GHz, the EUT was placed on the top of a rotating table 0.8 meters above the ground at a 3 or 10 meter semi-anechoic chamber. The table was rotated 360 degrees to determine the position of the highest radiation. b) For above 1GHz, the EUT was placed on the top of a rotating table 1.5 meters above the ground at a 3 meter fully-anechoic chamber. The table was rotated 360 degrees to determine the position of the highest radiation. c) The EUT was set 3 or 10 meters away from the interference-receiving antenna, which was mounted on the top of a variable-height antenna tower. d) The antenna height is varied from one meter to four meters above the ground to determine the maximum value of the field strength. Both horizontal and vertical polarizations of the antenna are set to make the measurement. e) For each suspected emission, the EUT was arranged to its worst case and then the antenna was tuned to heights from 1 meter to 4 meters (for the test frequency of below 30MHz, the antenna was tuned to heights 1 meter) and the rotatable table was turned from 0 degrees to 360 degrees to find the maximum reading. f) The test-receiver system was set to Peak Detect Function and Specified Bandwidth with Maximum Hold Mode. g) If the emission level of the EUT in peak mode was 10dB lower than the limit specified, then testing could be stopped and the peak values of the EUT would be reported. Otherwise the emissions that did not have 10dB margin would be re-tested one by one using peak, quasi-peak or average method as specified and then reported in a data sheet. h) Test the EUT in the lowest channel, the middle channel, the highest channel. i) The radiation measurements are performed in X, Y, Z axis positioning for Transmitting mode, and found the X axis positioning which it is the worst case. j) Repeat above procedures until all frequencies measured was complete. Note 1: Level (dBuV) = Reading (dBuV) + Factor (dB/m) Note 2: For frequencies above 1GHz, the field strength limits are based on average limits. However, the peak field strength of any emission shall not exceed the maximum permitted average limits specified above by more than 20 dB under any condition of modulation. For the emissions whose peak level is lower than the average limit, only the peak measurement is shown in the report. BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 36 of 70 6.9.4 Test data Remark: During the test, pre-scan the BLE1M/BLE2M mode, and found the BLE1M mode which it is worse case. [Test mode: TX low channel]; [Polarity: Horizontal] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 37 of 70 [Test mode:TX low channel]; [Polarity: Vertical] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 38 of 70 [Test mode: TX High channel]; [Polarity: Horizontal] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 39 of 70 [Test mode:TX High channel]; [Polarity: Vertical] Test Result: Pass BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com 7 Appendix A Report No.: BLA-EMC-202408-A2102 Page 40 of 70 Maximum Conducted Output Power Condition Mode NVNT NVNT NVNT NVNT NVNT NVNT BLE 1M BLE 1M BLE 1M BLE 2M BLE 2M BLE 2M Frequency (MHz) 2402 2442 2480 2402 2442 2480 Antenna Conducted Power (dBm) Limit (dBm) Verdict Ant1 Ant1 Ant1 Ant1 Ant1 Ant1 -6.154 -6.283 -5.209 -6.111 -6.065 -4.965 30 Pass 30 Pass 30 Pass 30 Pass 30 Pass 30 Pass Power NVNT BLE 1M 2402MHz Ant1 Power NVNT BLE 1M 2442MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 41 of 70 Power NVNT BLE 1M 2480MHz Ant1 Power NVNT BLE 2M 2402MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 42 of 70 Power NVNT BLE 2M 2442MHz Ant1 Power NVNT BLE 2M 2480MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 43 of 70 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 44 of 70 -6dB Bandwidth Condition Mode NVNT NVNT NVNT NVNT NVNT NVNT BLE 1M BLE 1M BLE 1M BLE 2M BLE 2M BLE 2M Frequency (MHz) 2402 2442 2480 2402 2442 2480 Antenna Ant1 Ant1 Ant1 Ant1 Ant1 Ant1 -6 dB Bandwidth (MHz) 0.655 0.647 0.654 1.111 1.093 1.103 Limit -6 dB Bandwidth (MHz) 0.5 0.5 0.5 0.5 0.5 0.5 Verdict Pass Pass Pass Pass Pass Pass -6dB Bandwidth NVNT BLE 1M 2402MHz Ant1 -6dB Bandwidth NVNT BLE 1M 2442MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 45 of 70 -6dB Bandwidth NVNT BLE 1M 2480MHz Ant1 -6dB Bandwidth NVNT BLE 2M 2402MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 46 of 70 -6dB Bandwidth NVNT BLE 2M 2442MHz Ant1 -6dB Bandwidth NVNT BLE 2M 2480MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 47 of 70 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 48 of 70 Occupied Channel Bandwidth Condition Mode Frequency (MHz) NVNT BLE 1M 2402 NVNT BLE 1M 2442 NVNT BLE 1M 2480 NVNT BLE 2M NVNT BLE 2M 2402 2442 NVNT BLE 2M 2480 Antenna Ant1 Ant1 Ant1 Ant1 Ant1 Ant1 99% OBW (MHz) 1.0359 1.0190 1.0356 2.0021 1.9983 2.0122 OBW NVNT BLE 1M 2402MHz Ant1 OBW NVNT BLE 1M 2442MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 49 of 70 OBW NVNT BLE 1M 2480MHz Ant1 OBW NVNT BLE 2M 2402MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com Report No.: BLA-EMC-202408-A2102 Page 50 of 70 OBW NVNT BLE 2M 2442MHz Ant1 OBW NVNT BLE 2M 2480MHz Ant1 BlueAsia of Technical Services (Shenzhen) Co.,Ltd. Tel: +86-755-23059481 Email: marketing@cblueasia.com www.cblueasia.com