LAB02
Test report
Dongguan Tunno Electronics Technology Co., Ltd 1212 True Wireless Earphones 2AZUU-1212 2AZUU1212 1212
Not Your Device? Search For Manuals or Datasheets below:
File Info : application/pdf, 92 Pages, 5.52MB
Document DEVICE REPORTGetApplicationAttachment.html?id=5281254SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 1 of 140 TEST REPORT Application No.: SZCR2104020508AT Applicant: Dongguan Tunno Electronics Technology Co., Ltd Address of Applicant: Room 201, 2nd Building, No. 153 Wenzhou Road, Dongcheng Street Dongguan, China Manufacturer: Dongguan Tunno Electronics Technology Co., Ltd Factory: Room 201, 2nd Building, No. 153 Wenzhou Road, Dongcheng Street, Dongguan, China Equipment Under Test (EUT): EUT Name: True Wireless Earphones Model No.: 1212 FCC ID: 2AZUU-1212 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2021-04-14 Date of Test: 2021-04-17 to 2021-04-26 Date of Issue: 2021-05-08 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Keny Xu EMC Laboratory Manager SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 2 of 140 Version 01 Chapter Revision Record Date 2021-05-08 Modifier Remark Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 3 of 140 2 Test Summary Radio Spectrum Technical Requirement Item Standard Antenna Requirement Other requirements Frequency Hopping Spread Spectrum System Hopping Sequence 47 CFR Part 15, Subpart C 15.247 Method N/A N/A Requirement Result 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass 47 CFR Part 15, Subpart C 15.247(a)(1),(g),(h) Pass Radio Spectrum Matter Part Item Standard Conducted Peak Output Power 20dB Bandwidth Carrier Frequencies Separation Hopping Channel Number Dwell Time Conducted Band Edges Measurement Conducted Spurious Emissions Radiated Emissions which fall in the restricted bands Radiated Spurious Emissions Below 1GHz Radiated Spurious Emissions Above 1GHz 47 CFR Part 15, Subpart C 15.247 Method ANSI C63.10 (2013) Section 7.8.5 ANSI C63.10 (2013) Section 7.8.7 ANSI C63.10 (2013) Section 7.8.2 ANSI C63.10 (2013) Section 7.8.3 ANSI C63.10 (2013) Section 7.8.4 ANSI C63.10 (2013) Section 7.8.6 ANSI C63.10 (2013) Section 7.8.8 ANSI C63.10 (2013) Section 6.10.5 ANSI C63.10 (2013) Section 6.4,6.5 ANSI C63.10 (2013) Section 6.6 Requirement 47 CFR Part 15, Subpart C 15.247(b)(1) 47 CFR Part 15, Subpart C 15.247(a)(1) 47 CFR Part 15, Subpart C 15.247a(1) 47 CFR Part 15, Subpart C 15.247a(1)(iii) 47 CFR Part 15, Subpart C 15.247a(1)(iii) 47 CFR Part 15, Subpart C 15.247(d) 47 CFR Part 15, Subpart C 15.247(d) Result Pass Pass Pass Pass Pass Pass Pass 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 4 of 140 3 Contents Page 1 COVER PAGE ............................................................................................................................................1 2 TEST SUMMARY .......................................................................................................................................3 3 CONTENTS ................................................................................................................................................4 4 GENERAL INFORMATION ........................................................................................................................6 4.1 DETAILS OF E.U.T. ...............................................................................................................................6 4.2 DESCRIPTION OF SUPPORT UNITS .........................................................................................................7 4.3 MEASUREMENT UNCERTAINTY ..............................................................................................................7 4.4 TEST LOCATION....................................................................................................................................8 4.5 TEST FACILITY......................................................................................................................................8 4.6 DEVIATION FROM STANDARDS...............................................................................................................8 4.7 ABNORMALITIES FROM STANDARD CONDITIONS .....................................................................................8 5 EQUIPMENT LIST......................................................................................................................................9 6 RADIO SPECTRUM TECHNICAL REQUIREMENT ...............................................................................11 6.1 ANTENNA REQUIREMENT ....................................................................................................................11 6.1.1 Test Requirement: .......................................................................................................................11 6.2 OTHER REQUIREMENTS FREQUENCY HOPPING SPREAD SPECTRUM SYSTEM HOPPING SEQUENCE ........12 6.2.1 Test Requirement: .......................................................................................................................12 7 RADIO SPECTRUM MATTER TEST RESULTS .....................................................................................14 7.1 CONDUCTED PEAK OUTPUT POWER....................................................................................................14 7.1.1 E.U.T. Operation ..........................................................................................................................14 7.1.2 Test Mode Description .................................................................................................................14 7.1.3 Test Setup Diagram .....................................................................................................................14 7.1.4 Measurement Procedure and Data.............................................................................................14 7.2 20DB BANDWIDTH ..............................................................................................................................15 7.2.1 E.U.T. Operation ..........................................................................................................................15 7.2.2 Test Mode Description .................................................................................................................15 7.2.3 Test Setup Diagram .....................................................................................................................15 7.2.4 Measurement Procedure and Data.............................................................................................15 7.3 CARRIER FREQUENCIES SEPARATION..................................................................................................16 7.3.1 E.U.T. Operation ..........................................................................................................................16 7.3.2 Test Mode Description .................................................................................................................16 7.3.3 Test Setup Diagram .....................................................................................................................16 7.3.4 Measurement Procedure and Data.............................................................................................16 7.4 HOPPING CHANNEL NUMBER...............................................................................................................17 7.4.1 E.U.T. Operation ..........................................................................................................................17 7.4.2 Test Mode Description .................................................................................................................17 7.4.3 Test Setup Diagram .....................................................................................................................17 7.4.4 Measurement Procedure and Data.............................................................................................18 7.5 DWELL TIME.......................................................................................................................................19 7.5.1 E.U.T. Operation ..........................................................................................................................19 7.5.2 Test Mode Description .................................................................................................................19 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 5 of 140 7.5.3 Test Setup Diagram .....................................................................................................................19 7.5.4 Measurement Procedure and Data.............................................................................................20 7.6 CONDUCTED BAND EDGES MEASUREMENT..........................................................................................21 7.6.1 E.U.T. Operation ..........................................................................................................................21 7.6.2 Test Mode Description .................................................................................................................21 7.6.3 Test Setup Diagram .....................................................................................................................22 7.6.4 Measurement Procedure and Data.............................................................................................22 7.7 CONDUCTED SPURIOUS EMISSIONS.....................................................................................................23 7.7.1 E.U.T. Operation ..........................................................................................................................23 7.7.2 Test Mode Description .................................................................................................................23 7.7.3 Test Setup Diagram .....................................................................................................................23 7.7.4 Measurement Procedure and Data.............................................................................................24 7.8 RADIATED EMISSIONS WHICH FALL IN THE RESTRICTED BANDS ..............................................................25 7.8.1 E.U.T. Operation ..........................................................................................................................25 7.8.2 Test Mode Description .................................................................................................................25 7.8.3 Test Setup Diagram .....................................................................................................................26 7.8.4 Measurement Procedure and Data.............................................................................................26 7.9 RADIATED SPURIOUS EMISSIONS BELOW 1GHZ...................................................................................35 7.9.1 E.U.T. Operation ..........................................................................................................................35 7.9.2 Test Mode Description .................................................................................................................35 7.9.3 Test Setup Diagram .....................................................................................................................36 7.9.4 Measurement Procedure and Data.............................................................................................36 7.10 RADIATED SPURIOUS EMISSIONS ABOVE 1GHZ ...................................................................................43 7.10.1 E.U.T. Operation......................................................................................................................43 7.10.2 Test Mode Description.............................................................................................................43 7.10.3 Test Setup Diagram.................................................................................................................43 7.10.4 Measurement Procedure and Data ........................................................................................44 8 TEST SETUP PHOTO ..............................................................................................................................57 9 EUT CONSTRUCTIONAL DETAILS (EUT PHOTOS) ............................................................................57 10 APPENDIX................................................................................................................................................58 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 6 of 140 4 General Information 4.1 Details of E.U.T. Power supply: DC 5V from adapter input AC 230V/50Hz Lithium Ion Battery: DC 3.7V 40mAh rechargeable battery which charged by charging case for left earbud and right earbud Lithium Ion Battery: DC 3.7V 400mAh 1.48Wh rechargeable battery which charged by USB port for charging case Cable(s): Type C cable:61cm unshielded Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.0 Modulation Type: GFSK, Pi/4DQPSK, 8DPSK Number of Channels: 79 Channel Spacing: 1MHz Spectrum Spread Technology: Frequency Hopping Spread Spectrum(FHSS) Antenna Type: PCB Antenna Antenna Gain: 0.8dBi Operation Frequency each of channel Channel Frequency Channel Frequency 0 2402MHz 20 2422MHz 1 2403MHz 21 2423MHz 2 2404MHz 22 2424MHz 3 2405MHz 23 2425MHz 4 2406MHz 24 2426MHz 5 2407MHz 25 2427MHz 6 2408MHz 26 2428MHz 7 2409MHz 27 2429MHz 8 2410MHz 28 2430MHz 9 2411MHz 29 2431MHz 10 2412MHz 30 2432MHz 11 2413MHz 31 2433MHz 12 2414MHz 32 2434MHz 13 2415MHz 33 2435MHz 14 2416MHz 34 2436MHz 15 2417MHz 35 2437MHz 16 2418MHz 36 2438MHz 17 2419MHz 37 2439MHz 18 2420MHz 38 2440MHz 19 2421MHz 39 2441MHz Channel 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Frequency 2442MHz 2443MHz 2444MHz 2445MHz 2446MHz 2447MHz 2448MHz 2449MHz 2450MHz 2451MHz 2452MHz 2453MHz 2454MHz 2455MHz 2456MHz 2457MHz 2458MHz 2459MHz 2460MHz 2461MHz Channel 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 Frequency 2462MHz 2463MHz 2464MHz 2465MHz 2466MHz 2467MHz 2468MHz 2469MHz 2470MHz 2471MHz 2472MHz 2473MHz 2474MHz 2475MHz 2476MHz 2477MHz 2478MHz 2479MHz 2480MHz SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 7 of 140 Note: In section 15.31(m), regards to the operating frequency range over 10 MHz, the Lowest frequency, the middle frequency, and the highest frequency of channel were selected to perform the test, and the selected channel see below: Selected Test Channel Channel Frequency The lowest channel (CH0) 2402MHz The middle channel (C39) 2441MHz The highest channel (CH78) 2480MHz 4.2 Description of Support Units Description Manufacturer -- -- The EUT has been tested as an independent unit. Model No. -- Serial No. -- 4.3 Measurement Uncertainty Test Item Measurement Uncertainty Conducted Peak Output Power ± 0.75dB 20dB Bandwidth ± 3% Carrier Frequencies Separation ± 7.25 x 10-8 Hopping Channel Number ± 7.25 x 10-8 Dwell Time ± 0.37% Conducted Band Edges Measurement ± 0.75dB Conducted Spurious Emissions ± 0.75dB Radiated Emissions which fall in the restricted bands ± 4.5dB (Below 1GHz);±4.8dB (Above 1GHz) Radiated Spurious Emissions Below 1GHz ± 4.5dB Radiated Spurious Emissions Above 1GHz ± 4.8dB Remark: The Ulab (lab Uncertainty) is less than Ucispr (CISPR Uncertainty), so the test results compliance is deemed to occur if no measured disturbance level exceeds the disturbance limit; non-compliance is deemed to occur if any measured disturbance level exceeds the disturbance limit. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 8 of 140 4.4 Test Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen Branch No. 1 Workshop, M-10, Middle Section, Science & Technology Park, Shenzhen, Guangdong, China. 518057. Tel: +86 755 2601 2053 Fax: +86 755 2671 0594 No tests were sub-contracted. 4.5 Test Facility The test facility is recognized, certified, or accredited by the following organizations: · A2LA (Certificate No. 3816.01) SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory is accredited by the American Association for Laboratory Accreditation(A2LA). Certificate No. 3816.01. · VCCI The 3m Fully-anechoic chamber for above 1GHz, 10m Semi-anechoic chamber for below 1GHz, Shielded Room for Mains Port Conducted Interference Measurement and Telecommunication Port Conducted Interference Measurement of SGS-CSTC Standards Technical Services Co., Ltd. have been registered in accordance with the Regulations for Voluntary Control Measures with Registration No.: G-20026, R-14188, C-12383 and T-11153 respectively. · FCC Designation Number: CN1178 SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized as an accredited testing laboratory. Designation Number: CN1178. Test Firm Registration Number: 406779. · Innovation, Science and Economic Development Canada SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized by ISED as an accredited testing laboratory. CAB identifier: CN0006. IC#: 4620C. 4.6 Deviation from Standards None 4.7 Abnormalities from Standard Conditions None SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 9 of 140 5 Equipment List RF Conducted Equipment Shielding Room DC Power Supply MXA Signal Analyzer Measurement Software Coaxial Cable Attenuator Manufacturer SAEMC Rohde & Schwarz KEYSIGHT TST SGS Huber+Suhner Model No Inventory No MSR733 SEM001-09 NGSM 32/10 SEM011-04 N9020A SEM004-17 TST PASS V1.0.5 N/A N/A SEM031-01 6620_SMA-501 SEM021-09 Cal Date 2019-06-13 2021-03-23 2021-04-08 N/A 2020-07-10 2021-04-08 Cal Due Date 2022-06-12 2022-03-22 2022-04-07 N/A 2021-07-09 2022-04-07 Radiated Emissions which fall in the restricted bands Equipment Manufacturer Model No Inventory No 3m Semi-Anechoic Chamber AUDIX N/A SEM001-02 EXA Signal Analyzer Agilent Technologies Inc N9010A SEM004-12 Horn Antenna Rohde&Schwarz HF907 SEM003-07 Pre-Amplifier Compliance Directions Systems Inc. PAP-0126 SEM004-11 Measurement Software AUDIX e3 V8.2014-627 N/A Coaxial Cable SGS N/A SEM026-01 Horn Antenna Schwarzbeck BBHA 9170 SEM003-15 Pre-Amplifier Compliance Directions Systems PAP-2640-50 Inc. SEM005-08 Cal Date 2021-03-26 2021-02-01 2021-04-14 2020-09-23 N/A 2020-07-10 2020-11-14 2021-03-24 Cal Due Date 2024-03-25 2022-01-31 2024-04-13 2021-09-22 N/A 2021-07-09 2023-11-13 2022-03-23 Radiated Spurious Emissions Below 1GHz Equipment Manufacturer 10m Semi-Anechoic Chamber SAEMC MXE EMI receiver KEYSIGHT Trilog-Broadband Antenna Schwarzbeck Pre-amplifier Sonoma Instrument Co Loop Antenna ETS-Lindgren Measurement Software AUDIX Model No FSAC1018 N9038A VULB9168 Inventory No SEM001-03 SEM004-16 SEM003-18 310N SEM005-04 6502 e3 V8.2014-627 SEM003-08 N/A Cal Date 2021-03-27 2020-11-02 2019-08-08 2021-04-08 2020-08-14 N/A Cal Due Date 2024-03-26 2021-11-01 2022-08-07 2022-04-07 2023-08-13 N/A SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Coaxial Cable SGS Report No.: SZCR210402050802 Page: 10 of 140 N/A SEM029-01 2020-07-10 2021-07-09 Radiated Spurious Emissions Above 1GHz Equipment Manufacturer Model No Inventory No 3m Semi-Anechoic Chamber AUDIX N/A SEM001-02 EXA Signal Analyzer Agilent Technologies Inc N9010A SEM004-12 Horn Antenna Rohde&Schwarz HF907 SEM003-07 Pre-Amplifier Compliance Directions Systems Inc. PAP-0126 SEM004-11 Measurement Software AUDIX e3 V8.2014-627 N/A Coaxial Cable SGS N/A SEM026-01 Horn Antenna Schwarzbeck BBHA 9170 SEM003-15 Pre-Amplifier Compliance Directions Systems PAP-2640-50 Inc. SEM005-08 Cal Date 2021-03-26 2021-02-01 2021-04-14 2020-09-23 N/A 2020-07-10 2020-11-14 2021-03-24 Cal Due Date 2024-03-25 2022-01-31 2024-04-13 2021-09-22 N/A 2021-07-09 2023-11-13 2022-03-23 General used equipment Equipment Humidity/ Temperature Indicator Humidity/ Temperature Indicator Barometer Manufacturer Shanghai Meteorological Industry Factory Mingle Changchun Meteorological Industry Factory Model No Inventory No Cal Date Cal Due Date ZJ1-2B SEM002-04 2020-09-15 2021-09-14 N/A SEM002-08 2020-09-15 2021-09-14 DYM3 SEM002-01 2021-03-30 2022-03-29 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 11 of 140 6 Radio Spectrum Technical Requirement 6.1 Antenna Requirement 6.1.1 Test Requirement: 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Limit: Standard 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 a permanently attached antenna or of an antenna that uses a unique coupling to the intentional radiator, the manufacturer may design the unit so that a broken antenna can be replaced by the user, but the use of a standard antenna jack or electrical connector is prohibited. 15.247(b) (4) requirement: The conducted output power limit specified in paragraph (b) of this section is based on the use of antennas with directional gains that do not exceed 6 dBi. Except as shown in paragraph (c) of this section, if transmitting antennas of directional gain greater than 6 dBi are used, the conducted output power from the intentional radiator shall be reduced below the stated values in paragraphs (b)(1), (b)(2), and (b)(3) of this section, as appropriate, by the amount in dB that the directional gain of the antenna exceeds 6 dBi. EUT Antenna: The antenna is integrated on the main PCB and no consideration of replacement. The best case gain of the antenna is 0.8dBi. Antenna location: Refer to Internal photos. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 12 of 140 6.2 Other requirements Frequency Hopping Spread Spectrum System Hopping Sequence 6.2.1 Test Requirement: 47 CFR Part 15, Subpart C 15.247(a)(1),(g),(h) Limit: Standard Requirement: The system shall hop to channel frequencies that are selected at the system hopping rate from a Pseudorandom ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hopping channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals. Frequency hopping spread spectrum systems are not required to employ all available hopping channels during each transmission. However, the system, consisting of both the transmitter and the receiver, must be designed to comply with all of the regulations in this section should the transmitter be presented with a continuous data (or information) stream. In addition, a system employing short transmission bursts must comply with the definition of a frequency hopping system and must distribute its transmissions over the minimum number of hopping channels specified in this section. The incorporation of intelligence within a frequency hopping spread spectrum system that permits the system to recognize other users within the spectrum band so that it individually and independently chooses and adapts its hopsets to avoid hopping on occupied channels is permitted. The coordination of frequency hopping systems in any other manner for the express purpose of avoiding the simultaneous occupancy of individual hopping frequencies by multiple transmitters is not permitted. Compliance for section 15.247(a)(1): According to Technical Specification, the pseudorandom sequence may be generated in a nine-stage shift register whose 5th and 9th stage outputs are added in a modulo-two addition stage. And the result is fed back to the input of the first stage. The sequence begins with the first ONE of 9 consecutive ONEs; i.e. the shift register is initialized with nine ones. > Number of shift register stages: 9 > Length of pseudo-random sequence: 29 -1 = 511 bits > Longest sequence of zeros: 8 (non-inverted signal) Linear Feedback Shift Register for Generation of the PRBS sequence An example of Pseudorandom Frequency Hopping Sequence as follow: SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 13 of 140 Each frequency used equally on the average by each transmitter. According to Technical Specification, the receivers are designed to have input and IF bandwidths that match the hopping channel bandwidths of any transmitters and shift frequencies in synchronization with the transmitted signals. Compliance for section 15.247(g): According to Technical Specification, the system transmits the packet with the pseudorandom hopping frequency with a continuous data and the short burst transmission from the Bluetooth system is also transmitted under the frequency hopping system with the pseudorandom hopping frequency system. Compliance for section 15.247(h): According to Technical specification, the system incorporates with an adaptive system to detect other user within the spectrum band so that it individually and independently to avoid hopping on the occupied channels. The system is designed not have the ability to coordinated with other FHSS System in an effort to avoid the simultaneous occupancy of individual hopping frequencies by multiple transmitter. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 14 of 140 7 Radio Spectrum Matter Test Results 7.1 Conducted Peak Output Power Test Requirement 47 CFR Part 15, Subpart C 15.247(b)(1) Test Method: ANSI C63.10 (2013) Section 7.8.5 Limit: 20.97dBm 7.1.1 E.U.T. Operation Operating Environment: Temperature: 25.3 C Humidity: 41.7 % RH Atmospheric Pressure: 1010 mbar 7.1.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 00 TX_non-Hop mode(left earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 02 TX_non-Hop mode(right earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. 7.1.3 Test Setup Diagram 7.1.4 Measurement Procedure and Data Please Refer to Appendix for Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 15 of 140 7.2 20dB Bandwidth Test Requirement Test Method: 47 CFR Part 15, Subpart C 15.247(a)(1) ANSI C63.10 (2013) Section 7.8.7 7.2.1 E.U.T. Operation Operating Environment: Temperature: 25.3 C Humidity: 41.7 % RH Atmospheric Pressure: 1010 mbar 7.2.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 00 TX_non-Hop mode(left earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 02 TX_non-Hop mode(right earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. 7.2.3 Test Setup Diagram 7.2.4 Measurement Procedure and Data Please Refer to Appendix for Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 16 of 140 7.3 Carrier Frequencies Separation Test Requirement 47 CFR Part 15, Subpart C 15.247a(1) Test Method: ANSI C63.10 (2013) Section 7.8.2 Limit: Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400-2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. 7.3.1 E.U.T. Operation Operating Environment: Temperature: 25.3 C Humidity: 41.7 % RH Atmospheric Pressure: 1010 mbar 7.3.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 01 TX_Hop mode(left earbud)_Keep the EUT in frequency hopping mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 03 TX_Hop mode(right earbud)_Keep the EUT in frequency hopping mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. 7.3.3 Test Setup Diagram 7.3.4 Measurement Procedure and Data Please Refer to Appendix for Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 17 of 140 7.4 Hopping Channel Number Test Requirement 47 CFR Part 15, Subpart C 15.247a(1)(iii) Test Method: ANSI C63.10 (2013) Section 7.8.3 Limit: Frequency range(MHz) 902-928 2400-2483.5 5725-5850 Number of hopping channels (minimum) 50 for 20dB bandwidth <250kHz 25 for 20dB bandwidth 250kHz 15 75 7.4.1 E.U.T. Operation Operating Environment: Temperature: 25.3 C Humidity: 41.7 % RH Atmospheric Pressure: 1010 mbar 7.4.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 01 TX_Hop mode(left earbud)_Keep the EUT in frequency hopping mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 03 TX_Hop mode(right earbud)_Keep the EUT in frequency hopping mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. 7.4.3 Test Setup Diagram SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch 7.4.4 Measurement Procedure and Data Report No.: SZCR210402050802 Page: 18 of 140 Please Refer to Appendix for Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 19 of 140 7.5 Dwell Time Test Requirement Test Method: 47 CFR Part 15, Subpart C 15.247a(1)(iii) ANSI C63.10 (2013) Section 7.8.4 Limit: Frequency(MHz) 902-928 2400-2483.5 5725-5850 Limit 0.4S within a 20S period(20dB bandwidth<250kHz) 0.4S within a 10S period(20dB bandwidth250kHz) 0.4S within a period of 0.4S multiplied by the number of hopping channels 0.4S within a 30S period 7.5.1 E.U.T. Operation Operating Environment: Temperature: 25.3 C Humidity: 41.7 % RH Atmospheric Pressure: 1010 mbar 7.5.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 01 TX_Hop mode(left earbud)_Keep the EUT in frequency hopping mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 03 TX_Hop mode(right earbud)_Keep the EUT in frequency hopping mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. 7.5.3 Test Setup Diagram SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 20 of 140 7.5.4 Measurement Procedure and Data Please Refer to Appendix for Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 21 of 140 7.6 Conducted Band Edges Measurement Test Requirement 47 CFR Part 15, Subpart C 15.247(d) Test Method: ANSI C63.10 (2013) Section 7.8.6 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 20 dB. 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). 7.6.1 E.U.T. Operation Operating Environment: Temperature: 25.3 C Humidity: 41.7 % RH Atmospheric Pressure: 1010 mbar 7.6.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 00 TX_non-Hop mode(left earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 01 TX_Hop mode(left earbud)_Keep the EUT in frequency hopping mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 02 TX_non-Hop mode(right earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 03 TX_Hop mode(right earbud)_Keep the EUT in frequency hopping mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch 7.6.3 Test Setup Diagram Report No.: SZCR210402050802 Page: 22 of 140 7.6.4 Measurement Procedure and Data Please Refer to Appendix for Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 23 of 140 7.7 Conducted Spurious Emissions Test Requirement 47 CFR Part 15, Subpart C 15.247(d) Test Method: ANSI C63.10 (2013) Section 7.8.8 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 20 dB. 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). 7.7.1 E.U.T. Operation Operating Environment: Temperature: 25.3 C Humidity: 41.7 % RH Atmospheric Pressure: 1010 mbar 7.7.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 00 TX_non-Hop mode(left earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 02 TX_non-Hop mode(right earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. 7.7.3 Test Setup Diagram SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 24 of 140 7.7.4 Measurement Procedure and Data Please Refer to Appendix for Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 25 of 140 7.8 Radiated Emissions which fall in the restricted bands Test Requirement 47 CFR Part 15, Subpart C 15.205 & 15.209 Test Method: ANSI C63.10 (2013) Section 6.10.5 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. 7.8.1 E.U.T. Operation Operating Environment: Temperature: 23.5 C Humidity: 56.3 % RH Atmospheric Pressure: 1010 mbar 7.8.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 00 TX_non-Hop mode(left earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 02 TX_non-Hop mode(right earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch 7.8.3 Test Setup Diagram Report No.: SZCR210402050802 Page: 26 of 140 7.8.4 Measurement Procedure and Data 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. Remark 1: Level= Read Level+ Cable Loss+ Antenna Factor- Preamp Factor Remark 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. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 27 of 140 Test Mode: 00; Polarity: Horizontal; Modulation:GFSK; Channel:Low SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 28 of 140 Test Mode: 00; Polarity: Vertical; Modulation:GFSK; Channel:Low SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 29 of 140 Test Mode: 00; Polarity: Horizontal; Modulation:GFSK; Channel:High SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 30 of 140 Test Mode: 00; Polarity: Vertical; Modulation:GFSK; Channel:High SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 31 of 140 Test Mode: 02; Polarity: Horizontal; Modulation:GFSK; Channel:Low SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 32 of 140 Test Mode: 02; Polarity: Vertical; Modulation:GFSK; Channel:Low SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 33 of 140 Test Mode: 02; Polarity: Horizontal; Modulation:GFSK; Channel:High SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 34 of 140 Test Mode: 02; Polarity: Vertical; Modulation:GFSK; Channel:High SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 35 of 140 7.9 Radiated Spurious Emissions Below 1GHz Test Requirement 47 CFR Part 15, Subpart C 15.205 & 15.209 Test Method: ANSI C63.10 (2013) Section 6.4,6.5 Measurement Distance: 10m Limit: Frequency(MHz) 0.009-0.490 0.490-1.705 1.705-30.0 30-88 88-216 216-960 960-1000 Field strength(microvolts/meter) 2400/F(kHz) 24000/F(kHz) 30 100 150 200 500 Measurement distance(meters) 300 30 30 3 3 3 3 7.9.1 E.U.T. Operation Operating Environment: Temperature: 23.2 C Humidity: 49 % RH Atmospheric Pressure: 1010 mbar 7.9.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 00 TX_non-Hop mode(left earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Pre-scan 02 TX_non-Hop mode(right earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch 7.9.3 Test Setup Diagram Report No.: SZCR210402050802 Page: 36 of 140 7.9.4 Measurement Procedure and Data a. For below 1GHz, the EUT was placed on the top of a rotating table 0.8 meters above the ground at a 3 meter semi-anechoic chamber. The table was rotated 360 degrees to determine the position of the highest radiation. b. 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. c. 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. d. 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. e. The test-receiver system was set to Peak Detect Function and Specified Bandwidth with Maximum Hold Mode. f. 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 quasi-peak method as specified and then reported in a data sheet. g. Test the EUT in the lowest channel, the middle channel, the Highest channel. h. 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. i. Repeat above procedures until all frequencies measured was complete. Remark: 1. Level= Read Level+ Cable Loss+ Antenna Factor- Preamp Factor 2. Scan from 9kHz to 30MHz, the disturbance 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. 3. The disturbance below 1GHz was very low and the harmonics were the highest point could be found when testing, so only the above harmonics had been displayed. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 37 of 140 Test Mode: 00; Polarity: Horizontal SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 38 of 140 Test Mode: 00; Polarity: Vertical SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 39 of 140 The test was performed at a 10m test site. According to below formulate and the test data at 10m test distance, L3 / L10 = D10 / D3 Note: L3: Level @ 3m distance. Unit: uV/m; L10: Level @ 10m distance. Unit: uV/m; D3: 3m distance. Unit: m D10: 10m distance. Unit: m The level at 3m test distance is below: Frequency (MHz) 43.51 50.23 143.83 447.98 593.05 958.79 43.20 54.64 147.92 482.22 677.58 909.67 Level @ 10m (dBuV/m) Level @ 10m (uV/m) Level @ 3m (uV/m) Level @ 3m (dBuV/m) Limit @ 3m (dBuV/m) Margin (dB) Ant. Polarization 14.66 5.41 18.03 25.12 40.00 -14.88 V 15.41 5.90 19.65 25.87 40.00 -14.13 V 15.48 5.94 19.81 25.94 43.50 -17.56 V 20.50 10.59 35.31 30.96 46.00 -15.04 V 23.69 15.29 50.98 34.15 46.00 -11.85 V 29.00 28.18 93.95 39.46 46.00 -6.54 V 14.21 5.13 17.12 24.67 40.00 -15.33 H 15.34 5.85 19.49 25.80 40.00 -14.20 H 15.05 5.66 18.85 25.51 43.50 -17.99 H 20.78 10.94 36.47 31.24 46.00 -14.76 H 25.56 18.97 63.22 36.02 46.00 -9.98 H 29.49 29.82 99.40 39.95 46.00 -6.05 H SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 40 of 140 Test Mode: 02; Polarity: Horizontal SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 41 of 140 Test Mode: 02; Polarity: Vertical SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 42 of 140 The test was performed at a 10m test site. According to below formulate and the test data at 10m test distance, L3 / L10 = D10 / D3 Note: L3: Level @ 3m distance. Unit: uV/m; L10: Level @ 10m distance. Unit: uV/m; D3: 3m distance. Unit: m D10: 10m distance. Unit: m The level at 3m test distance is below: Frequency (MHz) 42.90 50.59 144.84 564.64 607.79 906.48 43.81 58.38 143.33 435.59 684.75 912.86 Level @ 10m (dBuV/m) Level @ 10m (uV/m) Level @ 3m (uV/m) Level @ 3m (dBuV/m) Limit @ 3m (dBuV/m) Margin (dB) Ant. Polarization 14.15 5.10 17.00 24.61 40.00 -15.39 V 15.20 5.75 19.18 25.66 40.00 -14.34 V 15.59 6.02 20.06 26.05 43.50 -17.45 V 22.91 13.98 46.60 33.37 46.00 -12.63 V 24.84 17.46 58.19 35.30 46.00 -10.70 V 28.27 25.91 86.37 38.73 46.00 -7.27 V 14.09 5.06 16.88 24.55 40.00 -15.45 H 13.72 4.85 16.18 24.18 40.00 -15.82 H 14.83 5.51 18.38 25.29 43.50 -18.21 H 20.43 10.51 35.03 30.89 46.00 -15.11 H 23.90 15.67 52.23 34.36 46.00 -11.64 H 27.75 24.41 81.35 38.21 46.00 -7.79 H SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 43 of 140 7.10 Radiated Spurious Emissions Above 1GHz Test Requirement 47 CFR Part 15, Subpart C 15.205 & 15.209 Test Method: ANSI C63.10 (2013) Section 6.6 Limit: Frequency(MHz) Above 1000 Field strength(microvolts/meter) Measurement distance(meters) 500 3 7.10.1 E.U.T. Operation Operating Environment: Temperature: 23.5 C Humidity: 56.3 % RH Atmospheric Pressure: 1010 mbar 7.10.2 Test Mode Description Pre-scan / Final test Mode Code Description Final test 00 TX_non-Hop mode(left earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. Final test 02 TX_non-Hop mode(right earbud)_Keep the EUT in continuously transmitting mode with GFSK modulation, Pi/4DQPSK modulation, 8DPSK modulation. All modes have been tested and only the data of worst case is recorded in the report. 7.10.3 Test Setup Diagram SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 44 of 140 7.10.4 Measurement Procedure and Data a. 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. b. The EUT was set 3 meters away from the interference-receiving antenna, which was mounted on the top of a variable-height antenna tower. c. 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. d. 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. e. The test-receiver system was set to Peak Detect Function and Specified Bandwidth with Maximum Hold Mode. f. 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 or average method as specified and then reported in a data sheet. g. Test the EUT in the lowest channel, the middle channel, the Highest channel. h. 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. i. Repeat above procedures until all frequencies measured was complete. Remark: 1. Level= Read Level+ Cable Loss+ Antenna Factor- Preamp Factor 2. Scan from 1GHz to 25GHz, the disturbance above 18GHz 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. 3. As shown in this section, 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. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 45 of 140 Test Mode: 00; Polarity: Horizontal; Modulation:GFSK; Channel:Low SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 46 of 140 Test Mode: 00; Polarity: Vertical; Modulation:GFSK; Channel:Low SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 47 of 140 Test Mode: 00; Polarity: Horizontal; Modulation:GFSK; Channel:middle SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 48 of 140 Test Mode: 00; Polarity: Vertical; Modulation:GFSK; Channel:middle SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 49 of 140 Test Mode: 00; Polarity: Horizontal; Modulation:GFSK; Channel:High SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 50 of 140 Test Mode: 00; Polarity: Vertical; Modulation:GFSK; Channel:High SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 51 of 140 Test Mode: 02; Polarity: Horizontal; Modulation:GFSK; Channel:Low SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 52 of 140 Test Mode: 02; Polarity: Vertical; Modulation:GFSK; Channel:Low SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 53 of 140 Test Mode: 02; Polarity: Horizontal; Modulation:GFSK; Channel:middle SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 54 of 140 Test Mode: 02; Polarity: Vertical; Modulation:GFSK; Channel:middle SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 55 of 140 Test Mode: 02; Polarity: Horizontal; Modulation:GFSK; Channel:High SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 56 of 140 Test Mode: 02; Polarity: Vertical; Modulation:GFSK; Channel:High SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 57 of 140 8 Test Setup Photo Refer to setup photos for SZCR2104020508AT 9 EUT Constructional Details (EUT Photos) Please Refer to external and internal photos for SZCR2104020508AT SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 58 of 140 10 Appendix Appendix for 15.247-R 1. Bandwidth 1.1 Test Result Test Mode GFSK Pi/4DQPSK 8DPSK Frequency (MHz) 2402 2441 2480 2402 2441 2480 2402 2441 2480 TX Type SISO SISO SISO SISO SISO SISO SISO SISO SISO ANT No. 1 1 1 1 1 1 1 1 1 20dB Bandwidth Test Result (MHz) 0.927 0.921 0.926 1.257 1.238 1.230 1.258 1.254 1.251 Verdict PASS PASS PASS PASS PASS PASS PASS PASS PASS Test Mode GFSK Pi/4DQPSK 8DPSK Frequency (MHz) 2402 2441 2480 2402 2441 2480 2402 2441 2480 TX Type SISO SISO SISO SISO SISO SISO SISO SISO SISO ANT No. 1 1 1 1 1 1 1 1 1 99% Occupied Bandwidth Test Result (MHz) 0.881 Only for Report Use 0.868 Only for Report Use 0.858 Only for Report Use 1.174 Only for Report Use 1.170 Only for Report Use 1.163 Only for Report Use 1.172 Only for Report Use 1.167 Only for Report Use 1.159 Only for Report Use SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch 1.2 Test Graph - 20dB Bandwidth Report No.: SZCR210402050802 Page: 59 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 60 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 61 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 62 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 63 of 140 1.3 Test Graph - 99% Occupied Bandwidth SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 64 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 65 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 66 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 67 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch 2. Maximum Conducted Output Power Report No.: SZCR210402050802 Page: 68 of 140 2.1 Test Result Test Mode GFSK Pi/4DQPSK 8DPSK Frequency (MHz) 2402 2441 2480 2402 2441 2480 2402 2441 2480 Tx Type SISO SISO SISO SISO SISO SISO SISO SISO SISO Measured Peak Output Power (dBm) Limits (dBm) Ant 1 2.56 20.97 -1.21 20.97 -1.70 20.97 2.53 20.97 -0.90 20.97 -1.07 20.97 3.99 20.97 1.93 20.97 -0.63 20.97 Verdict PASS PASS PASS PASS PASS PASS PASS PASS PASS 2.2 Test Graph SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 69 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 70 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 71 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 72 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 73 of 140 3. Carrier frequency separation 3.1 Test Result Test Mode TX Type GFSK Pi/4DQPSK 8DPSK SISO SISO SISO 3.2 Test Graph ANT No. 1 1 1 Channel Separation (MHz) 0.977 1.017 0.999 20dB Bandwidth (MHz) 0.927 1.257 1.258 Limits (MHz) 0.927 0.838 0.839 Verdict PASS PASS PASS SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 74 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 75 of 140 4. Number of hopping frequencies 4.1 Test Result Test Mode GFSK Pi/4DQPSK 8DPSK TX Type SISO SISO SISO ANT No. 1 1 1 Num of Hopping Frequencies 79 79 79 4.2 Test Graph Limits 15 15 15 Verdict PASS PASS PASS SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 76 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 77 of 140 5. Time of Occupancy (Dwell Time) 5.1 Test Result Test Packet TX Mode Type Type GFSK Pi/4DQ PSK 8DPSK DH1 DH3 DH5 2DH1 2DH3 2DH5 3DH1 3DH3 3DH5 SISO SISO SISO SISO SISO SISO SISO SISO SISO ANT No. Duration of Single Pulse (ms) Obeserv ation Period (s) Num of Pulse in Observation Period Dwell Time (ms) 1 0.373 31.6 319 118.987 1 1.621 31.6 160 259.360 1 2.869 31.6 107 306.983 1 0.381 31.6 319 121.539 1 1.635 31.6 160 261.600 1 2.882 31.6 107 308.374 1 0.383 31.6 321 122.943 1 1.633 31.6 160 261.280 1 2.885 31.6 106 305.810 Limits (ms) 400 400 400 400 400 400 400 400 400 Verdict PASS PASS PASS PASS PASS PASS PASS PASS PASS 5.2 Test Graph SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 78 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 79 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 80 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 81 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 82 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 83 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 84 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 85 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 86 of 140 6. Unwanted Emissions in Non-restricted Frequency Bands 6.1 Test Result Test Mode GFSK Pi/4DQPSK 8DPSK Frequency (MHz) 2402 2441 2480 Hopping 2402 2441 2480 Hopping 2402 2441 2480 Hopping TX Type SISO SISO SISO SISO SISO SISO SISO SISO SISO SISO SISO SISO ANT No. 1 1 1 1 1 1 1 1 1 1 1 1 Spurious Conducted Emission (dBm) Refer to test graph Refer to test graph Refer to test graph Refer to test graph Refer to test graph Refer to test graph Refer to test graph Refer to test graph Refer to test graph Refer to test graph Refer to test graph Refer to test graph Limits (dBm) -17.89 -17.89 -17.89 -17.89 -18.03 -18.03 -18.03 -18.03 -16.47 -16.47 -16.47 -16.47 Verdict PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS 6.2 Test Graph SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 87 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 88 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 89 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 90 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 91 of 140 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 92 of 140
Related FCC IDs:
- 2AZUU-1212 - Dongguan Tunno Electronics Technology Co., Ltd True Wireless Earphones [-1212] Microsoft Word for Microsoft 365