TBR-C-202503-0130-3 Test Report BLE(FCC)
SHENZHEN CACGO INTELLIGENT CO.,LTD K68 smart watch 2BGT5-K68 2BGT5K68 k68
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Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202503-0130-3 Page: 1 of 32 Radio Test Report FCC ID: 2BGT5-K68 Report No. : TBR-C-202503-0130-3 Applicant : SHENZHEN CACGO INTELLIGENT CO.,LTD Equipment Under Test (EUT) EUT Name : smart watch Model No. : K68 Series Model No. : K66A,K66B,EF6,EF7,EF13 Brand Name : N/A Sample ID : HC-C-202503-0130-01-01&HC-C-202503-0130-02-01 Receipt Date : 2025-03-27 Test Date : 2025-03-27 to 2025-04-08 Issue Date : 2025-04-08 Standards Test Method Conclusions : FCC Part 15 Subpart C 15.247 : ANSI C63.10: 2013 KDB 558074 D01 15.247 Meas Guidance v05r02 : PASS In the configuration tested, the EUT complied with the standards specified above. Test By : Lily zhang Reviewed By : Henry huang Approved By : Ivan Su This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 Report No.: TBR-C-202503-0130-3 Page: 2 of 32 Contents CONTENTS ............................................................................................................................................ 2 1. GENERAL INFORMATION ABOUT EUT ............................................................................. 5 1.1 Client Information ................................................................................................................ 5 1.2 General Description of EUT (Equipment Under Test) ................................................... 5 1.3 Block Diagram Showing the Configuration of System Tested...................................... 6 1.4 Description of Support Units .............................................................................................. 7 1.5 Description of Test Mode ................................................................................................... 7 1.6 Description of Test Software Setting ................................................................................ 8 1.7 Measurement Uncertainty .................................................................................................. 9 1.8 Test Facility......................................................................................................................... 10 2. TEST SUMMARY..................................................................................................................... 11 3. TEST SOFTWARE .................................................................................................................. 11 4. TEST EQUIPMENT AND TEST SITE .................................................................................. 12 5. CONDUCTED EMISSION ...................................................................................................... 13 5.1 Test Standard and Limit ................................................................................................... 13 5.2 Test Setup........................................................................................................................... 13 5.3 Test Procedure .................................................................................................................. 13 5.4 Deviation From Test Standard......................................................................................... 14 5.5 EUT Operating Mode ........................................................................................................ 14 5.6 Test Data............................................................................................................................. 14 6. RADIATED AND CONDUCTED UNWANTED EMISSIONS............................................ 15 6.1 Test Standard and Limit ................................................................................................... 15 6.2 Test Setup........................................................................................................................... 16 6.3 Test Procedure .................................................................................................................. 17 6.4 Deviation From Test Standard......................................................................................... 18 6.5 EUT Operating Mode ........................................................................................................ 18 6.6 Test Data............................................................................................................................. 18 7. RESTRICTED BANDS AND BAND EDGE REQUIREMENT .......................................... 19 7.1 Test Standard and Limit ................................................................................................... 19 7.2 Test Setup........................................................................................................................... 19 7.3 Test Procedure .................................................................................................................. 20 7.4 Deviation From Test Standard......................................................................................... 20 7.5 EUT Operating Mode ........................................................................................................ 20 7.6 Test Data............................................................................................................................. 20 8. BANDWIDTH TEST................................................................................................................. 21 8.1 Test Standard and Limit ................................................................................................... 21 8.2 Test Setup........................................................................................................................... 21 8.3 Test Procedure .................................................................................................................. 21 8.4 Deviation From Test Standard......................................................................................... 22 8.5 EUT Operating Mode ........................................................................................................ 22 8.6 Test Data............................................................................................................................. 22 TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 3 of 32 9. PEAK OUTPUT POWER........................................................................................................ 23 9.1 Test Standard and Limit ................................................................................................... 23 9.2 Test Setup........................................................................................................................... 23 9.3 Test Procedure .................................................................................................................. 23 9.4 Deviation From Test Standard......................................................................................... 23 9.5 EUT Operating Mode ........................................................................................................ 23 9.6 Test Data............................................................................................................................. 23 10. POWER SPECTRAL DENSITY ............................................................................................ 24 10.1 Test Standard and Limit ................................................................................................. 24 10.2 Test Setup ........................................................................................................................ 24 10.3 Test Procedure ................................................................................................................ 24 10.4 Deviation From Test Standard ...................................................................................... 24 10.5 Antenna Connected Construction................................................................................. 24 10.6 Test Data .......................................................................................................................... 24 11. ANTENNA REQUIREMENT .................................................................................................. 25 11.1 Test Standard and Limit ................................................................................................. 25 11.2 Deviation From Test Standard ...................................................................................... 25 11.3 Antenna Connected Construction................................................................................. 25 11.4 Test Data .......................................................................................................................... 25 ATTACHMENT A-- CONDUCTED EMISSION TEST DATA ....................................................... 26 ATTACHMENT B--UNWANTED EMISSIONS DATA ................................................................... 28 TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 4 of 32 Report No. TBR-C-202503-0130-3 Revision History Version Description Rev.01 Initial issue of report Issued Date 2025-04-08 TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 5 of 32 1. General Information about EUT 1.1 Client Information Applicant Address Manufacturer Address : SHENZHEN CACGO INTELLIGENT CO.,LTD : 1105 Yifenghua Bld, 28 Yifenghua Innovation Industrial Park, Dalang street, Longhua district, ShenZhen, China : SHENZHEN CACGO INTELLIGENT CO.,LTD : 1105 Yifenghua Bld, 28 Yifenghua Innovation Industrial Park, Dalang street, Longhua district, ShenZhen, China 1.2 General Description of EUT (Equipment Under Test) EUT Name Models No. Model Different Product Description Power Rating Software Version : smart watch : K68, K66A,K66B,EF6,EF7,EF13 All of these models are identical on the same PCB, layout and : circuit, the difference is that the model name and appearance are not the same. Operation Frequency: Bluetooth (BLE): 2402MHz~2480MHz Number of Channel: Bluetooth (BLE): 40 channels : Antenna Gain: Modulation Type: -1dBi Conducting Wire Antenna GFSK Bit Rate of Transmitter: 1Mbps&2Mbps : USB Input: DC 5V DC 3.8V 730mAh Rechargeable Li-ion battery : V1.00(Updatable Hardware Version : T5170 2.1(Updatable Remark: (1)The adapter provided by the TOBY ,the antenna gain from the manufacturer, the verified for the RF conduction test provided by TOBY test lab.The above antenna information is declared by manufacturer and for more detailed features description, please refer to the manufacturer's specifications, the laboratory shall not be held responsible. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 6 of 32 (2) Channel List: Channel 00 01 02 03 04 05 06 07 08 09 10 11 12 13 Frequency (MHz) 2402 2404 2406 2408 2410 2412 2414 2416 2418 2420 2422 2424 2426 2428 Channel 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Frequency (MHz) 2430 2432 2434 2436 2438 2440 2442 2444 2446 2448 2450 2452 2454 2456 Channel 28 29 30 31 32 33 34 35 36 37 38 39 Frequency (MHz) 2458 2460 2462 2464 2466 2468 2470 2472 2474 2476 2478 2480 1.3 Block Diagram Showing the Configuration of System Tested EUT NoteBook TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 7 of 32 1.4 Description of Support Units Name Notebook Model HYLR-WFQ9 Equipment Information S/N Manufacturer AAMFPM1418000165 honour Used "" 1.5 Description of Test Mode To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration mode(s) mentioned follow was evaluated respectively. For Conducted Test(AC POWER) Final Test Mode Description Mode 1 TX Mode For Radiated and RF Conducted Test Final Test Mode Description Mode 2 TX Mode Mode 3 TX 1Mbps Mode (Channel 00/19/39) Mode 4 TX 2Mbps Mode (Channel 00/19/39) Note: (1) For all test, we have verified the construction and function in typical operation. And all the test modes were carried out with the EUT in transmitting operation in maximum power with all kinds of data rate. According to ANSI C63.10 standards, the measurements are performed at the highest, middle, lowest available channels, and the worst case data rate as follows: BLE Mode: GFSK Modulation Transmitting mode. (2) During the testing procedure, the continuously transmitting with the maximum power mode was programmed by the customer. (3) The EUT is considered a Mobile unit; in normal use it was positioned on X-plane. The worst case was found positioned on X-plane. Therefore only the test data of this X-plane was used for radiated emission measurement test. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 8 of 32 1.6 Description of Test Software Setting During testing channel& Power controlling software provided by the customer was used to control the operating channel as well as the output power level. The RF output power selection is for the setting of RF output power expected by the customer and is going to be fixed on the firmware of the final end product power parameters of RF setting. Test Software Version Frequency BLE 1M BLE 2M 2402 MHz 03XF 03XF RTLBTAPP 2440MHz 03XF 03XF 2480 MHz 03XF 03XF TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 9 of 32 1.7 Measurement Uncertainty The reported uncertainty of measurement y±Uwhere expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2providing a level of confidence of approximately 95 %. Test Item Conducted Emission Parameters Level Accuracy: 9kHz~150kHz 150kHz to 30MHz Expanded Uncertainty (ULab) ±3.50 dB ±3.10 dB Radiated Emission Level Accuracy: 9kHz to 30 MHz ±4.60 dB Radiated Emission Level Accuracy: 30MHz to 1000 MHz ±4.50 dB Radiated Emission Level Accuracy: Above 1000MHz ±4.20 dB RF Power-Conducted Level Accuracy: Above 1000MHz ±0.95 dB Power Spectral Density- Level Accuracy: Conducted Above 1000MHz ±3dB Level Accuracy: Occupied Bandwidth 30MHz to 1000 MHz Above 1000MHz ±3.8% Unwanted Conducted Emission- Level Accuracy: 30MHz to 1000 MHz Above 1000MHz ±2.72 dB Temperature / ±0.6 Humidity / ±4% Supply voltages / ±2% Time / ±4% TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 10 of 32 1.8 Test Facility The testing report were performed by the Shenzhen Toby Technology Co., Ltd., in their facilities located at 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. At the time of testing, the following bodies accredited the Laboratory: CNAS (L5813) The Laboratory has been accredited by CNAS to ISO/IEC 17025: 2017 General Requirements for the Competence of Testing and Calibration Laboratories for the competence in the field of testing. And the Registration No.: CNAS L5813. A2LA Certificate No.: 4750.01 The laboratory has been accredited by American Association for Laboratory Accreditation(A2LA) to ISO/IEC 17025: 2017 General Requirements for the Competence of Testing and Calibration Laboratories for the technical competence in the field of Electrical Testing. And the A2LA Certificate No.: 4750.01.FCC Accredited Test Site Number: 854351. Designation Number: CN1223. IC Registration No.: (11950A) The Laboratory has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing. The site registration: Site# 11950A. CAB identifier: CN0056. TB-RF-074-1.0 2. Test Summary Report No.: TBR-C-202503-0130-3 Page: 11 of 32 Standard Section Test Item FCC 15.207(a) FCC 15.209 & 15.247(d) FCC 15.203 FCC 15.247(a)(2) / FCC 15.247(b)(3) FCC 15.247(e) FCC 15.247(d) FCC 15.207(a) FCC 15.247(d) Conducted Emission Radiated Unwanted Emissions Antenna Requirement 6dB Bandwidth 99% Occupied bandwidth Peak Output Power and E.I.R.P Power Spectral Density Band Edge Measurements Conducted Unwanted Emissions Emissions in Restricted Bands / On Time and Duty Cycle Note: N/A is an abbreviation for Not Applicable. Test Sample(s) Judgment Remark HC-C-202503-0130-02-01 PASS N/A HC-C-202503-0130-02-01 PASS N/A HC-C-202503-0130-01-01 PASS N/A HC-C-202503-0130-01-01 PASS N/A HC-C-202503-0130-01-01 PASS N/A HC-C-202503-0130-01-01 PASS N/A HC-C-202503-0130-01-01 PASS N/A HC-C-202503-0130-01-01 PASS N/A HC-C-202503-0130-01-01 PASS N/A HC-C-202503-0130-01-01 PASS N/A HC-C-202503-0130-01-01 / N/A 3. Test Software Test Item Conducted Emission Radiation Emission Radiation Emission RF Conducted Measurement RF Test System Test Software EZ-EMC EZ-EMC EZ-EMC MTS-8310 JS1120 Manufacturer EZ EZ EZ MWRFtest Tonscend Version No. CDI-03A2 FA-03A2RE FA-03A2RE+ V2.0.0.0 V3.2.22 TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 12 of 32 4. Test Equipment and Test Site No. TB-EMCSR001 TB-EMCSR002 TB-EMCCA001 TB-EMCCB002 Test Site Shielding Chamber #1 Shielding Chamber #2 3m Anechoic Chamber #A 3m Anechoic Chamber #B Test Site Manufacturer YIHENG YIHENG ETS YIHENG Specification 7.5*4.0*3.0m 8.0*4.0*3.0m 9.0*6.0*6.0m 9.0*6.0*6.0m Used X Conducted Emission Test Equipment Manufacturer EMI Test Receiver RF Switching Unit AMN Rohde & Schwarz Compliance Direction Systems Inc SCHWARZBECK LISN Rohde & Schwarz Radiation Emission Test(B Site) Equipment Manufacturer Spectrum Analyzer Spectrum Analyzer EMI Test Receiver Agilent Rohde & Schwarz Rohde & Schwarz Bilog Antenna SCHWARZBECK Horn Antenna SCHWARZBECK Horn Antenna SCHWARZBECK Loop Antenna SCHWARZBECK HF Amplifier Tonscend HF Amplifier Tonscend HF Amplifier Tonscend Highpass Filter CD Highpass Filter CD Highpass Filter XINBO Antenna Conducted Emission Equipment Manufacturer Spectrum Analyzer Rohde & Schwarz MXA Signal Analyzer KEYSIGHT MXA Signal Analyzer Agilent DARE!! Instruments RF Power Sensor DARE!! Instruments DARE!! Instruments Temperature and Humidity Chamber DARE!! Instruments ZhengHang Model No. ESCI RSU-A4 NNBL 8226-2 ENV216 Model No. N9020A FSV40-N ESU-8 VULB 9168 BBHA 9120 D BBHA 9170 FMZB 1519 B TAP9E6343 TAP051845 TAP0184050 HPM-6.4/18G HPM-2.8/18G XBLBQ-HTA67(8-25G) Model No. FSV40-N N9020B N9020A RadiPowerRPR3006W RadiPowerRPR3006W RadiPowerRPR3006W RadiPowerRPR3006W ZH-QTH-1500 Serial No. 100321 34403 8226-2/164 101131 Serial No. MY49100060 102197 100472/008 1225 2463 1118 1519B-059 AP21C806117 AP21C806141 AP21C806129 ----22052702-1 Serial No. 102197 MY60110172 MY47380425 17I00015SNO26 17I00015SNO29 17I00015SNO31 17I00015SNO33 ZH2107264 Last Cal. Cal. Due Date Jun. 17, 2024 Jun. 16, 2025 Jun. 17, 2024 Jun. 16, 2025 Jun. 17, 2024 Jun. 16, 2025 Jun. 17, 2024 Jun. 16, 2025 Last Cal. Cal. Due Date Aug. 29, 2024 Aug. 28, 2025 Jun. 17, 2024 Jun. 16, 2025 Feb. 20, 2025 Nov. 13, 2023 Jun. 14, 2024 Feb. 27, 2024 Jun. 14, 2024 Aug. 29, 2024 Aug. 29, 2024 Aug. 29, 2024 N/A N/A N/A Feb.19, 2026 Nov. 12, 2025 Jun. 13, 2026 Feb.26, 2026 Jun. 13, 2026 Aug. 28, 2025 Aug. 28, 2025 Aug. 28, 2025 N/A N/A N/A Last Cal. Jun. 17, 2024 Aug. 29, 2024 Aug. 29, 2024 Aug. 29, 2024 Aug. 29, 2024 Aug. 29, 2024 Aug. 29, 2024 Cal. Due Date Jun. 16, 2025 Aug. 28, 2025 Aug. 28, 2025 Aug. 28, 2025 Aug. 28, 2025 Aug. 28, 2025 Aug. 28, 2025 Jun. 17, 2024 Jun. 16, 2025 TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 13 of 32 5. Conducted Emission 5.1 Test Standard and Limit 5.1.1 Test Standard FCC Part 15.207 5.1.2 Test Limit Frequency Maximum RF Line Voltage (dBV) Quasi-peak Level Average Level 150kHz~500kHz 66 ~ 56 * 56 ~ 46 * 500kHz~5MHz 56 46 5MHz~30MHz 60 50 Notes: (1) *Decreasing linearly with logarithm of the frequency. (2) The lower limit shall apply at the transition frequencies. (3) The limit decrease in line with the logarithm of the frequency in the range of 0.15 to 0.50MHz. 5.2 Test Setup 5.3 Test Procedure The EUT was placed 0.8 meters from the horizontal ground plane with EUT being connected to the power mains through a line impedance stabilization network (LISN). All other support equipments powered from additional LISN(s). The LISN provide 50 Ohm/ 50uH of coupling impedance for the measuring instrument. Interconnecting cables that hang closer than 40 cm to the ground plane shall be folded back and forth in the center forming a bundle 30 to 40 cm long. I/O cables that are not connected to a peripheral shall be bundled in the center. The end of the cable may be terminated, if required, using the correct terminating impedance. The overall length shall not exceed 1 m. LISN at least 80 cm from nearest part of EUT chassis. The bandwidth of EMI test receiver is set at 9 kHz, and the test frequency band is from 0.15MHz to 30MHz. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 14 of 32 5.4 Deviation From Test Standard No deviation 5.5 EUT Operating Mode Please refer to the description of test mode. 5.6 Test Data Please refer to the Attachment A inside test report. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 15 of 32 6. Radiated and Conducted Unwanted Emissions 6.1 Test Standard and Limit 6.1.1 Test Standard FCC Part 15.209 & FCC Part 15.247(d) 6.1.2 Test Limit General field strength limits at frequencies Below 30MHz Frequency (MHz) Field Strength (µA/m)* Field Strength Measurement (microvolt/meter)** Distance (meters) 0.009~0.490 6.37/F (F in kHz) 2400/F(KHz) 300 0.490~1.705 63.7/F (F in kHz) 24000/F(KHz) 30 1.705~30.0 0.08 30 30 Note: 1, The emission limits for the ranges 9-90 kHz and 110-490 kHz are based on measurements employing a linear average detector. 2, *is for RSS Standard, **is for FCC Standard. General field strength limits at frequencies above 30 MHz Frequency (MHz) Field strength (µV/m at 3 m) Measurement Distance (meters) 30~88 100 3 88~216 150 3 216~960 200 3 Above 960 500 3 General field strength limits at frequencies Above 1000MHz Frequency (MHz) Above 1000 Distance of 3m (dBuV/m) Peak Average 74 54 Note: (1) The tighter limit applies at the band edges. (2) Emission Level(dBuV/m)=20log Emission Level(uV/m) In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated device is operating, the RF power that is produced 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 that the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of rootmean-square averaging over a time interval, as permitted under section 5.4(d), the attenuation required shall be 30 dB instead of 20 dB. TB-RF-074-1.0 6.2 Test Setup Report No.: TBR-C-202503-0130-3 Page: 16 of 32 Radiated measurement Below 30MHz Test Setup Below 1000MHz Test Setup Above 1GHz Test Setup TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 17 of 32 Conducted measurement 6.3 Test Procedure ---Radiated measurement The measuring distance of 3m shall be used for measurements at frequency up to 1GHz and above 1 GHz. The EUT was placed on a rotating 0.8m high above ground, the table was rotated 360 degrees to determine the position of the highest radiation. Measurements at frequency above 1GHz. The EUT was placed on a rotating 1.5m high above the ground. RF absorbers covered the ground plane with a minimum area of 3.0m by 3.0m between the EUT and measurement receiver antenna. The RF absorber shall not exceed 30cm in high above the conducting floor. The table was rotated 360 degrees to determine the position of the highest radiation. The Test antenna shall vary between 1m and 4m, Both Horizontal and Vertical antenna are set to make measurement. The initial step in collecting conducted emission data is a spectrum analyzer peak detector mode pre-scanning the measurement frequency range. Significant peaks are then marked and then Quasi Peak detector mode re-measured. If the Peak Mode measured value compliance with and lower than Quasi Peak Mode Limit Below 1 GHz, the EUT shall be deemed to meet QP Limits and then no additional QP Mode measurement performed. But the Peak Value and average value both need to comply with applicable limit above 1 GHz. Testing frequency range 30MHz-1GHz the measuring instrument use VBW=120 kHz with Quasi-peak detection. Testing frequency range 9KHz-150Hz the measuring instrument use VBW=200Hz with Quasi-peak detection. Testing frequency range 9KHz-30MHz the measuring instrument use VBW=9kHz with Quasi-peak detection. Testing frequency range above 1GHz the measuring instrument use RBW=1 MHz and VBW=3 MHz with Peak Detector for Peak Values, and use RBW=1 MHz and VBW=10 Hz with Peak Detector for Average Values. For the actual test configuration, please see the test setup photo. --- Conducted measurement Reference level measurement Establish a reference level by using the following procedure: a) Set instrument center frequency to DTS channel center frequency. b) Set the span to1.5 times the DTS bandwidth. c) Set the RBW = 100 kHz. d) Set the VBW[3*RBW]. e) Detector = peak. f) Sweep time = auto couple. g) Trace mode = max hold. h) Allow trace to fully stabilize. i) Use the peak marker function to determine the maximum PSD level. Note that the channel found to contain the maximum PSD level can be used to establish the reference level. Emission level measurement Establish an emission level by using the following procedure: a) Set the center frequency and span to encompass frequency range to be measured. b) Set the RBW = 100 kHz. c) Set the VBW[3*RBW]. d) Detector = peak. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 18 of 32 e) Sweep time = auto couple. f) Trace mode = max hold. g) Allow trace to fully stabilize. h) Use the peak marker function to determine the maximum amplitude level. Ensure that the amplitude of all unwanted emissions outside of the authorized frequency band (excluding restricted frequency bands) is attenuated by at least the minimum requirements specified in 11.11. Report the three highest emissions relative to the limit. 6.4 Deviation From Test Standard No deviation 6.5 EUT Operating Mode Please refer to the description of test mode. 6.6 Test Data Radiated measurement please refer to the Attachment B inside test report. Conducted measurement please refer to the external appendix report of BLE. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 19 of 32 7. Restricted Bands and Band Edge Requirement 7.1 Test Standard and Limit 7.1.1 Test Standard FCC Part 15.205 & FCC Part 15.247(d) 7.1.2 Test Limit Restricted Frequency Band (MHz) 2310 ~2390 2483.5 ~2500 Distance Meters(at 3m) Peak (dBuV/m) Average (dBuV/m) 74 54 74 54 Peak (dBm)see 7.3 e) Average (dBm) see 7.3 e) 2310 ~2390 2483.5 ~2500 -21.20 -21.20 -41.20 -41.20 Note: According the ANSI C63.10 11.12.2 antenna-port conducted measurements may also be used as an alternative to radiated measurements for determining compliance in the restricted frequency bands requirements. If conducted measurements are performed, then proper impedance matching must be ensured and an additional radiated test forcabinet/case emissions is required. 7.2 Test Setup Radiated measurement Conducted measurement TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 20 of 32 7.3 Test Procedure ---Radiated measurement Measurements at frequency above 1GHz. The EUT was placed on a rotating 1.5m high above the ground. RF absorbers covered the ground plane with a minimum area of 3.0m by 3.0m between the EUT and measurement receiver antenna. The RF absorber shall not exceed 30cm in high above the conducting floor. The table was rotated 360 degrees to determine the position of the highest radiation. The Test antenna shall vary between 1m and 4m, Both Horizontal and Vertical antenna are set to make measurement. The initial step in collecting conducted emission data is a spectrum analyzer peak detector mode pre-scanning the measurement frequency range. Significant peaks are then marked and then Quasi Peak detector mode re-measured. The Peak Value and average value both need to comply with applicable limit above 1 GHz. Testing frequency range above 1GHz the measuring instrument use RBW=1 MHz and VBW=3 MHz with Peak Detector for Peak Values, and use RBW=1 MHz and VBW=10 Hz with Peak Detector for Average Values. For the actual test configuration, please see the test setup photo. --- Conducted measurement a) Measure the conducted output power (in dBm) using the detector specified by the appropriate regulatory agency (see 11.12.2.3 through 11.12.2.5 for guidance regarding measurement procedures for determining quasi-peak, peak, and average conducted output power, respectively). b) Add the maximum transmit antenna gain (in dBi) to the measured output power level to determine the EIRP (see 11.12.2.6 for guidance on determining the applicable antenna gain). c) Add the appropriate maximum ground reflection factor to the EIRP (6 dB for frequencies 30 MHz; 4.7 dB for frequencies between 30 MHz and 1000 MHz, inclusive; and 0 dB for frequencies > 1000 MHz). d) For MIMO devices, measure the power of each chain and sum the EIRP of all chains in linear terms (i.e., watts and mW). e) Convert the resultant EIRP to an equivalent electric field strength using the following relationship: E = EIRP-20 log d +104.8 where E is the electric field strength in dBuV/m EIRP is the equivalent isotropically radiated power in dBm d is the specified measurement distance in m f) Compare the resultant electric field strength level with the applicable regulatory limit. g) Perform the radiated spurious emission test. 7.4 Deviation From Test Standard No deviation 7.5 EUT Operating Mode Please refer to the description of test mode. 7.6 Test Data Remark: The test uses antenna-port conducted measurements as an alternative to radiated measurements for determining compliance in the restricted frequency bands requirements. Please refer to the external appendix report of BLE. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 21 of 32 8. Bandwidth Test 8.1 Test Standard and Limit 8.1.1 Test Standard FCC Part 15.205 & FCC Part 15.247(d) 8.1.2 Test Limit Test Item -6dB bandwidth (DTS bandwidth ) 99% occupied bandwidth Limit >=500 KHz / 8.2 Test Setup Frequency Range(MHz) 2400~2483.5 2400~2483.5 8.3 Test Procedure ---DTS bandwidth The steps for the first option are as follows: a) Set RBW = 100 kHz. b) Set the VBW[3*RBW]. c) Detector = peak. d) Trace mode = max hold. e) Sweep = auto couple. f) Allow the trace to stabilize. g) Measure the maximum width of the emission that is constrained by the frequencies associated with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the maximum level measured in the fundamental emission. ---occupied bandwidth The occupied bandwidth is the frequency bandwidth such that, below its lower and above its upper frequency limits, the mean powers are each equal to 0.5% of the total mean power of the given emission. The following procedure shall be used for measuring 99% power bandwidth: a) The instrument center frequency is set to the nominal EUT channel center frequency. The frequency span for the spectrum analyzer shall be between 1.5 times and 5.0 times the OBW. b) The nominal IF filter bandwidth (3 dB RBW) shall be in the range of 1% to 5% of the OBW, and VBW shall be approximately three times the RBW, unless otherwise specified by the applicable requirement. c) Set the reference level of the instrument as required, keeping the signal from exceeding the maximum input mixer level for linear operation. In general, the peak of the spectral envelope shall be more than [10 log (OBW/RBW)] below the reference level. Specific guidance is given in 4.1.5.2. d) Step a) through step c) might require iteration to adjust within the specified range. e) Video averaging is not permitted. Where practical, a sample detection and single sweep mode shall be used. Otherwise, peak detection and max hold mode (until the trace stabilizes) shall be used. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 22 of 32 f) Use the 99% power bandwidth function of the instrument (if available) and report the measured bandwidth. g) If the instrument does not have a 99% power bandwidth function, then the trace data points are recovered and directly summed in linear power terms. The recovered amplitude data points, beginning at the lowest frequency, are placed in a running sum until 0.5% of the total is reached; that frequency is recorded as the lower frequency. The process is repeated until 99.5% of the total is reached; that frequency is recorded as the upper frequency. The 99% power bandwidth is the difference between these two frequencies. h) The occupied bandwidth shall be reported by providing plot(s) of the measuring instrument display; the plot axes and the scale units per division shall be clearly labeled. Tabular data may be reported in addition to the plot(s). 8.4 Deviation From Test Standard No deviation 8.5 EUT Operating Mode Please refer to the description of test mode. 8.6 Test Data Please refer to the external appendix report of BLE. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 23 of 32 9. Peak Output Power 9.1 Test Standard and Limit 9.1.1 Test Standard FCC Part 15.247(b)(3) 9.1.2 Test Limit Test Item Limit Peak Output Power not exceed 1 W or 30dBm E.I.R.P not exceed 4 W or 36dBm 9.2 Test Setup Frequency Range(MHz) 2400~2483.5 9.3 Test Procedure ---RBWDTS bandwidth The following procedure shall be used when an instrument with a resolution bandwidth that is greater than the DTS bandwidth is available to perform the measurement: a) Set the RBWDTS bandwidth. b) Set VBW[3*RBW]. c) Set span[3*RBW]. d) Sweep time = auto couple. e) Detector = peak. f) Trace mode = max hold. g) Allow trace to fully stabilize. h) Use peak marker function to determine the peak amplitude level. 9.4 Deviation From Test Standard No deviation 9.5 EUT Operating Mode Please refer to the description of test mode. 9.6 Test Data Please refer to the external appendix report of BLE. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 24 of 32 10. Power Spectral Density 10.1 Test Standard and Limit 10.1.1 Test Standard FCC Part 15.247(e) 10.1.2 Test Limit Test Item Power Spectral Density Limit 8dBm(in any 3 kHz) 10.2 Test Setup Frequency Range(MHz) 2400~2483.5 10.3 Test Procedure The following procedure shall be used if maximum peak conducted output power was used to determine compliance, and it is optional if the maximum conducted (average) output power was used to determine compliance: a) Set analyzer center frequency to DTS channel center frequency. b) Set the span to 1.5 times the DTS bandwidth. c) Set the RBW to 3 kHzRBW100 kHz. d) Set the VBW [3*RBW]. e) Detector = peak. f) Sweep time = auto couple. g) Trace mode = max hold. h) Allow trace to fully stabilize. i) Use the peak marker function to determine the maximum amplitude level within the RBW. j) If measured value exceeds requirement, then reduce RBW (but no less than 3 kHz) and repeat. 10.4 Deviation From Test Standard No deviation 10.5 Antenna Connected Construction Please refer to the description of test mode. 10.6 Test Data Please refer to the external appendix report of BLE. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 25 of 32 11. Antenna Requirement 11.1 Test Standard and Limit 11.1.1 Test Standard FCC Part 15.203 11.1.2 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 shall be considered sufficient to comply with the provisions of this Section. 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. 11.2 Deviation From Test Standard No deviation 11.3 Antenna Connected Construction The gains of the antenna used for transmitting is -1dBi, and the antenna de-signed with permanent attachment and no consideration of replacement. Please see the EUT photo for details. 11.4 Test Data The EUT antenna is a Conducting Wire Antenna. It complies with the standard requirement. Antenna Type Permanent attached antenna Unique connector antenna Professional installation antenna TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 26 of 32 Attachment A-- Conducted Emission Test Data Test Voltage: Terminal: Test Mode: Remark: AC 120V/60Hz Line Mode 1 Only worse case is reported. Remark: 1. Corr. Factor (dB) = LISN Factor (dB) + Cable Loss (dB) 2. Margin (dB) =QuasiPeak/Average (dBuV)-Limit (dBuV) TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 27 of 32 Test Voltage: Terminal: Test Mode: Remark: AC 120V/60Hz Neutral Mode 1 Only worse case is reported. Remark: 1. Corr. Factor (dB) = LISN Factor (dB) + Cable Loss (dB) 2. Margin (dB) =QuasiPeak/Average (dBuV)-Limit (dBuV) TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 28 of 32 Attachment B--Unwanted Emissions Data ---Radiated Unwanted Emissions 9 KHz~30 MHz From 9 KHz to 30 MHz: Conclusion: PASS Note: The amplitude of spurious emissions which are attenuated by more than 20dB Below the permissible value has no need to be reported. 30MHz~1GHz Temperature: Test Voltage: Ant. Pol. Test Mode: Remark: 23.5 Relative Humidity: AC 120V/60Hz Horizontal Mode 2 Only worse case is reported. 46% Remark: 1. Corr. = Antenna Factor (dB/m) + Cable Loss (dB)-AMP(dB) 2. QuasiPeak (dBV/m)= Corr. (dB/m)+ Read Level (dBV) 3. Margin (dB) = QuasiPeak (dBV/m)-Limit QPK(dBV/m) TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 29 of 32 Temperature: Test Voltage: Ant. Pol. Test Mode: Remark: 23.5 Relative Humidity: AC 120V/60Hz Vertical Mode 2 Only worse case is reported. 46% Remark: 1. Corr. = Antenna Factor (dB/m) + Cable Loss (dB) -AMP(dB) 2. QuasiPeak (dBV/m)= Corr. (dB/m)+ Read Level (dBV) 3. Margin (dB) = QuasiPeak (dBV/m)-Limit QPK(dBV/m) TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 30 of 32 Above 1GHz Temperature: Test Voltage: Test Mode: Remark: 24.2 Relative Humidity: DC 3.8V BLE(1Mbps) Mode TX 2402 MHz Only worse case is reported. Horizontal 51% Vertical Remark: 1. Corr. = Antenna Factor (dB/m) + Cable Loss (dB) -AMP(dB) 2. Peak/AVG (dBV/m)= Corr. (dB/m)+ Read Level (dBV) 3. Margin (dB) = Peak/AVG (dBV/m)-Limit PK/AVG(dBV/m) 4. The tests evaluated 1-26.5GHz, The testing has been conformed to the 10th harmonic of the highest fundamental frequency. Test with highpass filter (Pass Frequency: 2.8-18G and 8-25G), and 18GHz-26.5GHz is the noise, No other signals were detected. 5. No report for the emission which below the prescribed limit. 6. The peak valueaverage limit, So only show the peak value. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 31 of 32 Temperature: Test Voltage: Test Mode: Remark: 24.2 Relative Humidity: DC 3.8V BLE(1Mbps) Mode TX 2440 MHz Only worse case is reported. Horizontal 51% Vertical Remark: 1. Corr. = Antenna Factor (dB/m) + Cable Loss (dB) -AMP(dB) 2. Peak/AVG (dBV/m)= Corr. (dB/m)+ Read Level (dBV) 3. Margin (dB) = Peak/AVG (dBV/m)-Limit PK/AVG(dBV/m) 4. The tests evaluated 1-26.5GHz, The testing has been conformed to the 10th harmonic of the highest fundamental frequency. Test with highpass filter (Pass Frequency: 2.8-18G and 8-25G), and 18GHz-26.5GHz is the noise, No other signals were detected. 5. No report for the emission which below the prescribed limit. 6. The peak valueaverage limit, So only show the peak value. TB-RF-074-1.0 Report No.: TBR-C-202503-0130-3 Page: 32 of 32 Temperature: Test Voltage: Test Mode: Remark: 24.2 Relative Humidity: DC 3.8V BLE(1Mbps) Mode TX 2480 MHz Only worse case is reported. Horizontal 51% Vertical Remark: 1. Corr. = Antenna Factor (dB/m) + Cable Loss (dB) -AMP(dB) 2. Peak/AVG (dBV/m)= Corr. (dB/m)+ Read Level (dBV) 3. Margin (dB) = Peak/AVG (dBV/m)-Limit PK/AVG(dBV/m) 4. The tests evaluated 1-26.5GHz, The testing has been conformed to the 10th harmonic of the highest fundamental frequency. Test with highpass filter (Pass Frequency: 2.8-18G and 8-25G), and 18GHz-26.5GHz is the noise, No other signals were detected. 5. No report for the emission which below the prescribed limit. 6. The peak valueaverage limit, So only show the peak value. -----END OF THE REPORT------ TB-RF-074-1.0
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