EMC
陈辉
Test Report-BLE
Shenzhen GMK Technology Co., Ltd K1 2AXUD-K1 2AXUDK1 k1
Not Your Device? Search For Manuals or Datasheets below:
File Info : application/pdf, 34 Pages, 634.80KB
Document DEVICE REPORTGetApplicationAttachment.html?id=6550933Report No.: TZ230404285-E2 FCC TEST REPORT Test report On Behalf of Shenzhen GMK Technology Co., Ltd For NucBox Model No.: K1,K2,K3,K4,K5,K6,K7,K8,K9,K10,K11,K12,K13,K14,K15,K16,K17,K18,K19,K2 0,K21,K22,K23,K25,K26,K27,K28,K29,K30,K100,K200,K300,M1,M2,M3,M4,M5, M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16,M17,M18,M19,M20,M21,M22,M 23,M25,M26,M27,M28,M29,M30,M100,M200,M300,GNi12U,KN2,KN3 FCC ID: 2AXUD-K1 Prepared for : Shenzhen GMK Technology Co., Ltd 4/F, #9 Bldg, HuaLian Industrial Park, XinShi Community, Dalang St, Longhua Dist, 518109,Shenzhen,China Prepared By : Shenzhen Tongzhou Testing Co.,Ltd 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: Date of Report: Report Number: Apr.26, 2023~May.15, 2023 May.16, 2023 TZ230404285-E2 The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Page 1 of 34 TEST RESULT CERTIFICATION Report No.: TZ230404285-E2 Applicant's name ................. : Shenzhen GMK Technology Co., Ltd 4/F, #9 Bldg, HuaLian Industrial Park, XinShi Community, Dalang St, Address .................................. : Longhua Dist, 518109,Shenzhen,China Manufacture's Name ............ : Shenzhen GMK Technology Co., Ltd 4/F, #9 Bldg, HuaLian Industrial Park, XinShi Community, Dalang St, Address .................................. : Longhua Dist, 518109,Shenzhen,China Product description Trade Mark: GMKtec Product name ........................... : NucBox Model and/or type reference K1,K2,K3,K4,K5,K6,K7,K8,K9,K10,K11,K12,K13,K14,K15,K16,K17, K18,K19,K20,K21,K22,K23,K25,K26,K27,K28,K29,K30,K100,K200, : K300,M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M1 5,M16,M17,M18,M19,M20,M21,M22,M23,M25,M26,M27,M28,M29, M30,M100,M200,M300,GNi12U,KN2,KN3 Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing Co.,Ltd takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ........................................... : Date (s) of performance of tests ............. : Apr.26, 2023~May.15, 2023 Date of Issue .......................................... : May.16, 2023 Test Result .............................................. : Pass Testing Engineer : Technical Manager : Authorized Signatory : (Anna Hu) (Hugo Chen) (Andy Zhang) Page 2 of 34 Revision 000 Revision History Issue Date May.16, 2023 Revisions Initial Issue Report No.: TZ230404285-E2 Revised By Andy Zhang Page 3 of 34 TABLE OF CONTENTS Report No.: TZ230404285-E2 1. GENERAL INFORMATION ................................................................................................................................... 5 1.1. DESCRIPTION OF DEVICE (EUT) ........................................................................................................................ 5 1.2 EUT CONFIGURATION .......................................................................................................................................... 6 1.3. EXTERNAL I/O CABLE ......................................................................................................................................... 6 1.4. DESCRIPTION OF TEST FACILITY ........................................................................................................................ 6 1.5. STATEMENT OF THE MEASUREMENT UNCERTAINTY .......................................................................................... 7 1.6. MEASUREMENT UNCERTAINTY ........................................................................................................................... 7 1.7. DESCRIPTION OF TEST MODES .......................................................................................................................... 7 1.8. FREQUENCY OF CHANNELS ................................................................................................................................ 7 2. TEST METHODOLOGY ......................................................................................................................................... 8 2.1. EUT CONFIGURATION......................................................................................................................................... 8 2.2. EUT EXERCISE ................................................................................................................................................... 8 2.3. GENERAL TEST PROCEDURES ........................................................................................................................... 8 3. SYSTEM TEST CONFIGURATION...................................................................................................................... 9 3.1. JUSTIFICATION..................................................................................................................................................... 9 3.2. EUT EXERCISE SOFTWARE................................................................................................................................ 9 3.3. SPECIAL ACCESSORIES ...................................................................................................................................... 9 3.4. BLOCK DIAGRAM/SCHEMATICS........................................................................................................................... 9 3.5. EQUIPMENT MODIFICATIONS .............................................................................................................................. 9 3.6. TEST SETUP ........................................................................................................................................................ 9 4. SUMMARY OF TEST RESULTS ........................................................................................................................ 10 5. TEST RESULT ....................................................................................................................................................... 11 5.1. ON TIME AND DUTY CYCLE .............................................................................................................................. 11 5.2. MAXIMUM CONDUCTED OUTPUT POWER MEASUREMENT............................................................................... 12 5.3. POWER SPECTRAL DENSITY MEASUREMENT .................................................................................................. 13 5.4. 6 DB SPECTRUM BANDWIDTH MEASUREMENT ................................................................................................ 15 5.5. RADIATED EMISSIONS MEASUREMENT............................................................................................................. 16 5.6. CONDUCTED SPURIOUS EMISSIONS AND BAND EDGES TEST ......................................................................... 26 5.7. AC POWER LINE CONDUCTED EMISSIONS ........................................................................................................ 27 5.8. BAND-EDGE MEASUREMENTS FOR RADIATED EMISSIONS ................................................................................ 30 5.9. ANTENNA REQUIREMENTS ................................................................................................................................ 32 6. LIST OF MEASURING EQUIPMENTS .............................................................................................................. 33 7. TEST SETUP PHOTOGRAPHS OF EUT.......................................................................................................... 34 8. EXTERIOR PHOTOGRAPHS OF THE EUT ..................................................................................................... 34 9. INTERIOR PHOTOGRAPHS OF THE EUT ...................................................................................................... 34 Page 4 of 34 1. GENERAL INFORMATION Report No.: TZ230404285-E2 1.1. Description of Device (EUT) EUT Model Number Model Declaration Test Model Power Supply Hardware version Software version Sample ID Bluetooth Bluetooth Version Operation Frenquency Channel Number Modulation Technology Data Rates Antenna Type And Gain WiFi : NucBox K1,K2,K3,K4,K5,K6,K7,K8,K9,K10,K11,K12,K13,K14,K15,K16,K17,K18,K19,K : 20,K21,K22,K23,K25,K26,K27,K28,K29,K30,K100,K200,K300,M1,M2,M3,M4, M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16,M17,M18,M19,M20,M21 ,M22,M23,M25,M26,M27,M28,M29,M30,M100,M200,M300,GNi12U,KN2,KN3 : All the same except for the model name : K1 : DC 19V by adpater : IP3_ARB20_V10 : Windows 11 Pro 22H2 : TZ2304042852#&TZ2304042854# : V5.2 : 2402- 2480 MHz : 79 40 Channels Channels for for Bluetooth BR/EDR(DSS) BLE (DTS) : GFSK, /4-DQPSK, 8-DPSK GFSK for BLE (DTS) for Bluetooth BR/EDR (DSS) : Bluetooth BR/EDR BLE (DTS): 1Mbps (DSS): 1/2/3Mbps : Internal 1.3dBi Antenna 1: WLAN : Supported IEEE 802.11a/b/g/n/ac WLAN FCC Operation Frequency WLAN Channel Number WLAN Modulation Technology IEEE 802.11b:2412-2462MHz IEEE 802.11g:2412-2462MHz IEEE 802.11n HT20:2412-2462MHz / 5180-5240MHz : IEEE IEEE 802.11n HT40: 2422-2452MHz 802.11a: 5180-5240MHz / 5190-5230MHz IEEE 802.11ac VHT20: 5180-5240MHz IEEE 802.11ac VHT40: 5190-5230MHz IEEE 802.11ac VHT80: 5210MHz 11 Channels for 2412-2462MHz(IEEE 802.11b/g/n HT20) 7 Channels for 2422-2452MHz(IEEE 802.11n HT40) : 4 Channels for 5180-5240MHz (IEEE 802.11a/ac VHT20/n HT20) 2 Channels for 5190-5230MHz (IEEE 802.11ac VHT40/n HT40) 1 Channels for 5210MHz (IEEE 802.11ac VHT80) IEEE 802.11b: DSSS(CCK,DQPSK,DBPSK) IEEE 802.11g: OFDM (64QAM, 16QAM, QPSK, BPSK) : IEEE 802.11n: OFDM (64QAM, 16QAM, QPSK, BPSK) IEEE 802.11a: OFDM (64QAM, 16QAM, QPSK, BPSK) IEEE 802.11ac: OFDM (256QAM, 64QAM, 16QAM, QPSK, BPSK) Internal Antenna 1: Antenna Type And Gain : 1.3dBi (Max.), for TX/RX (WLAN 2.4G Band) 1.55dBi (Max.), for TX/RX (WLAN 5.2G Band) Page 5 of 34 Internal Antenna 2: 1.3dBi (Max.), for TX/RX (WLAN 2.4G Band) 1.55dBi (Max.), for TX/RX (WLAN 5.2G Band) Report No.: TZ230404285-E2 Note 1: Antenna position refer to EUT Photos. Note 2: the above information was supplied by the applicant. 1.2 EUT configuration The following peripheral devices and interface cables were connected during the measurement: supplied by the lab supplied by the manufacturer Manufacturer Huntkey Description N/A Model HKA12019063-6BA Serial Number N/A Certificate N/A 1.3. External I/O Cable I/O Port Description HDMI Port USB Port AV Port DC Port LAN Type-C Port Quantity 2 4 1 1 1 1 Cable N/A N/A N/A N/A N/A N/A 1.4. Description of Test Facility FCC Designation Number: CN1275 Test Firm Registration Number: 167722 Shenzhen Tongzhou Testing Co.,Ltd has been listed on the US Federal Communications Commission list of test facilities recognized to perform electromagnetic emissions measurements. A2LA Certificate Number: 5463.01 Shenzhen Tongzhou Testing Co.,Ltd has been listed by American Association for Laboratory Accreditation to perform electromagnetic emission measurement. IC ISED#: 22033 CAB identifier: CN0099 Shenzhen Tongzhou Testing Co.,Ltd has been listed by Innovation, Science and Economic Development Canada to perform electromagnetic emission measurement. The 3m-Semi anechoic test site fulfils CISPR 16-1-4 according to ANSI C63.10 and CISPR 16-1-4:2010 Page 6 of 34 1.5. Statement of the Measurement Uncertainty Report No.: TZ230404285-E2 The data and results referenced in this document are true and accurate. The reader is cautioned that there may be errors within the calibration limits of the equipment and facilities. The measurement uncertainty was calculated for all measurements listed in this test report acc. To CISPR 16 4 "Specification for radio disturbance and immunity measuring apparatus and methods Part 4: Uncertainty in EMC Measurements" and is documented in the Shenzhen Tongzhou Testing Co.,Ltd's quality system acc. To DIN EN ISO/IEC 17025. Furthermore, component and process variability of devices similar to that tested may result in additional deviation. The manufacturer has the sole responsibility of continued compliance of the device. 1.6. Measurement Uncertainty Test Item Radiation Uncertainty : Conduction Uncertainty : Frequency Range 9KHz~30MHz 30MHz~1000MHz 1GHz~40GHz 150kHz~30MHz Uncertainty ±3.08dB ±4.42dB ±4.06dB ±2.23dB Note (1) (1) (1) (1) (1). This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2. 1.7. Description of Test Modes The EUT has been tested under operating condition. Pre-test AC conducted emission at power adapter mode. Pre-test AC conducted emission at both voltage AC 120V/60Hz and AC 240V/60Hz, recorded worst case. Worst-case mode and channel used for 150 kHz-30 MHz power line conducted emissions was the mode and channel with the highest output power, which was determined to be BT LE 1Mbps mode (Middle Channel). Worst-case mode and channel used for 9kHz-1000 MHz radiated emissions was the mode and channel with the highest output power, that was determined to be BT LE 1Mbps mode (Middle Channel). 1.8. Frequency of Channels Bluetooth LE (DTS) Channel 0 1 2 ----18 19 Frequency(MHz) 2402 2404 2406 ----2438 2440 Channel 20 ----37 38 39 Frequency(MHz) 2442 ----2476 2478 2480 Page 7 of 34 2. TEST METHODOLOGY Report No.: TZ230404285-E2 All measurements contained in this report were conducted with ANSI C63.10-2013, American National Standard of Procedures for Compliance Testing of Unlicensed Wireless Devices. The radiated testing was performed at an antenna-to-EUT distance of 3 meters. All radiated and conducted emissions measurement was performed at Shenzhen Tongzhou Testing Co.,Ltd 2.1. EUT Configuration The EUT configuration for testing is installed on RF field strength measurement to meet the Commissions requirement and operating in a manner that intends to maximize its emission characteristics in a continuous normal application. 2.2. EUT Exercise The EUT was operated in the engineering mode to fix the TX frequency that was for the purpose of the measurements. According to FCC's request, Test Procedure KDB558074 D01 DTS Meas. Guidance v05r02 and KDB 662911 are required to be used for this kind of FCC 15.247 digital modulation device. According to its specifications, the EUT must comply with the requirements of the Section 15.203, 15.205, 15.207, 15.209 and 15.247 under the FCC Rules Part 15 Subpart C. 2.3. General Test Procedures 2.3.1 Conducted Emissions The EUT is placed on the turntable, which is 0.8 m above ground plane. According to the requirements in Section 6.2.1 of ANSI C63.10-2013 Conducted emissions from the EUT measured in the frequency range between 0.15 MHz and 30MHz using Quasi-peak and average detector modes. 2.3.2 Radiated Emissions The EUT is placed on a turn table, which is 0.8 m above ground plane. The turntable shall rotate 360 degrees to determine the position of maximum emission level. EUT is set 3m away from the receiving antenna, which varied from 1m to 4m to find out the highest emission. And also, each emission was to be maximized by changing the polarization of receiving antenna both horizontal and vertical. In order to find out the maximum emissions, exploratory radiated emission measurements were made according to the requirements in Section 6.3 of ANSI C63.10-2013 2.4. Test Sample The application provides 2 samples to meet requirement; Sample ID Description TZ2304042852# BT Engineer sample continuous transmit TZ2304042854# Normal sample Intermittent transmit Page 8 of 34 3. SYSTEM TEST CONFIGURATION Report No.: TZ230404285-E2 3.1. Justification The system was configured for testing in a continuous transmits condition. 3.2. EUT Exercise Software The system was configured for Bluetooth testing in a continuous transmits condition and change test channels by software (WCN_ComboTool) provided by application. 3.3. Special Accessories No. Equipment Manufacturer Model No. Serial No. 1 PC ASUS X454L 15105-0038A100 Length / shielded/ unshielded / Notes / 3.4. Block Diagram/Schematics Please refer to the related document 3.5. Equipment Modifications Shenzhen Tongzhou Testing Co.,Ltd has not done any modification on the EUT. 3.6. Test Setup Please refer to the test setup photo. Page 9 of 34 Report No.: TZ230404285-E2 4. SUMMARY OF TEST RESULTS FCC Rules §15.247(b) §15.247(e) §15.247(a)(2) / §15.209, §15.247(d) §15.205 §15.207(a) §15.203 §15.247(i)§2.1091 Applied Standard: FCC Part 15 Subpart C Description of Test Sample ID Maximum Conducted Output Power TZ2304042852# Power Spectral Density TZ2304042852# 6dB Bandwidth TZ2304042852# Occupied Bandwidth Radiated and Conducted Spurious Emissions Emissions at Restricted Band TZ2304042852# TZ2304042852# TZ2304042854# TZ2304042852# Conducted Emissions TZ2304042854# Antenna Requirements N/A RF Exposure TZ2304042852# Note: only for report purpose. Remark: The measurement uncertainty is not included in the test result. Result Compliant Compliant Compliant Note 1 Compliant Compliant Compliant Compliant Compliant Page 10 of 34 5. TEST RESULT 5.1. On Time and Duty Cycle 5.1.1. Standard Applicable None; for reporting purpose only. Report No.: TZ230404285-E2 5.1.2. Measuring Instruments and Setting Please refer to section 6 of equipment list in this report. The following table is the setting of the spectrum analyzer. 5.1.3. Test Procedures 1. Set the center frequency of the spectrum analyzer to the transmitting frequency; 2. Set the span=0MHz, RBW=8MHz, VBW=50MHz, Sweep time=5ms; 3. Detector = peak; 4. Trace mode = Single hold. 5.1.4. Test Setup Layout 5.1.5. EUT Operation during Test The EUT was programmed to be in continuously transmitting mode. 5.1.6. Test result Pass Remark: 1. Please refer to Appendix.G of Appendix Test Data for BLE; Page 11 of 34 5.2. Maximum Conducted Output Power Measurement Report No.: TZ230404285-E2 5.2.1. Standard Applicable For systems using digital modulation in the 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz bands: 1 Watt. As an alternative to a peak power measurement, compliance with the one Watt limit can be based on a measurement of the maximum conducted output power. Maximum Conducted Output Power is defined as the total transmit power delivered to all antennas and antenna elements averaged across all symbols in the signaling alphabet when the transmitter is operating at its maximum power control level. Power must be summed across all antennas and antenna elements. The average must not include any time intervals during which the transmitter is off or is transmitting at a reduced power level. If multiple modes of operation are possible (e.g., alternative modulation methods), the maximum conducted output power is the highest total transmit power occurring in any mode. 5.2.2. Test Procedures The transmitter output (antenna port) was connected to the spectrum analyzer. According to KDB558074 D01 DTS Measurement Guidance Section 9.1 Maximum peak conducted output power 9.1.1. This procedure shall be used when the measurement instrument has available a resolution bandwidth that is greater than the DTS bandwidth. a) Set the RBW DTS bandwidth. b) Set VBW 3 RBW. c) Set span 3 x 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. 5.2.3. Test Setup Layout 5.2.4. EUT Operation during Test The EUT was programmed to be in continuously transmitting mode. 5.2.5. Test Result of Maximum Conducted Output Power Pass Remark: 1. Test results including cable loss; 2. Please refer to Appendix.C of Appendix Test Data for BLE; Page 12 of 34 5.3. Power Spectral Density Measurement Report No.: TZ230404285-E2 5.3.1. Standard Applicable According to §15.247(e): For digitally modulated systems, the power spectral density conducted from the intentional radiator to the antenna shall not be greater than 8 dBm in any 3 kHz band during any time interval of continuous transmission. 5.3.2. Measuring Instruments and Setting Please refer to section 6 of equipment list in this report. The following table is the setting of Spectrum Analyzer. 5.3.3. Test Procedures 1. Use this procedure when the maximum peak conducted output power in the fundamental emission is used to demonstrate compliance. 2. The power was monitored at the coupler port with a Spectrum Analyzer. The power level was set to the maximum level. 3. Set the RBW = 3kHz. 4. Set the VBW 3*RBW 5. Set the span to 1.5 times the DTS channel bandwidth. 6. Detector = peak. 7. Sweep time = auto couple. 8. Trace mode = max hold. 9. Allow trace to fully stabilize. 10. Use the peak marker function to determine the maximum power level. 11. If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat. 12. The resulting peak PSD level must be 8dBm. 5.3.4. Test Setup Layout 5.3.5. EUT Operation during Test The EUT was programmed to be in continuously transmitting mode. Page 13 of 34 5.3.6. Test Result of Power Spectral Density Pass Remark: 1. Test results including cable loss; 2. Please refer to Appendix.D of Appendix Test Data for BLE; Report No.: TZ230404285-E2 Page 14 of 34 5.4. 6 dB Spectrum Bandwidth Measurement Report No.: TZ230404285-E2 5.4.1. Standard Applicable According to §15.247(a) (2): For digital modulation systems, the minimum 6 dB bandwidth shall be at least 500 kHz. 5.4.2. Measuring Instruments and Setting Please refer to section 6 of equipment list in this report. The following table is the setting of the Spectrum Analyzer. Spectrum Parameter Attenuation Span Frequency Detector Trace Sweep Time Setting Auto > RBW Peak Max Hold 100ms 5.4.3. Test Procedures 1. The transmitter output (antenna port) was connected to the spectrum analyzer in peak hold mode. 2. The resolution bandwidth and the video bandwidth were set according to KDB558074. 3. Measured the spectrum width with power higher than 6dB below carrier. 5.4.4. Test Setup Layout 5.4.5. EUT Operation during Test The EUT was programmed to be in continuously transmitting mode. 5.4.6. Test Result of 6dB Spectrum Bandwidth Pass Remark: 1. Test results including cable loss; 2. Please refer to Appendix.A of Appendix Test Data for BLE; Page 15 of 34 5.5. Radiated Emissions Measurement Report No.: TZ230404285-E2 5.5.1. Standard Applicable 15.205 (a) Except as shown in paragraph (d) of this section, only spurious emissions are permitted in any of the frequency bands listed below: MHz 0.090-0.110 \1\ 0.495-0.505 2.1735-2.1905 4.125-4.128 4.17725-4.17775 4.20725-4.20775 6.Android 10-6.218 6.26775-6.26825 6.31175-6.31225 8.291-8.294 8.362-8.366 8.37625-8.38675 8.41425-8.41475 12.29-12.293. 12.51975-12.52025 12.57675-12.57725 13.36-13.41 MHz 16.42-16.423 16.69475-16.69525 16.80425-16.80475 25.5-25.67 37.5-38.25 73-74.6 74.8-75.2 108-121.94 123-138 149.9-150.05 156.52475-156.52525 156.7-156.9 162.0125-167.17 167.72-173.2 240-285 322-335.4 MHz 399.9-410 608-614 960-1240 1300-1427 1435-1626.5 1645.5-1646.5 1660-1710 1718.8-1722.2 2200-2300 2310-2390 2483.5-2500 2690-2900 3260-3267 3332-3339 3345.8-3358 3600-4400 GHz 4.5-5.15 5.35-5.46 7.25-7.75 8.025-8.5 9.0-9.2 9.3-9.5 10.6-12.7 13.25-13.4 14.47-14.5 15.35-16.2 17.7-21.4 22.01-23.12 23.6-24.0 31.2-31.8 36.43-36.5 (\2\) \1\ Until February 1, 1999, this restricted band shall be 0.490-0.510MHz. \2\ Above 38.6 According to §15.247 (d): 20dBc in any 100 kHz bandwidth outside the operating frequency band. In case the emission fall within the restricted band specified on 15.205(a), then the 15.209(a) limit in the table below has to be followed. Frequencies (MHz) 0.009~0.490 0.490~1.705 1.705~30.0 30~88 88~216 216~960 Above 960 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 5.5.2. Measuring Instruments and Setting Please refer to section 6 of equipment list in this report. The following table is the setting of spectrum analyzer and receiver. Spectrum Parameter Attenuation Start Frequency Stop Frequency RB / VB (Emission in restricted band) RB / VB (Emission in non-restricted band) Setting Auto 1000 MHz 10th carrier harmonic 1MHz / 1MHz for Peak, 1 MHz / 1/B kHz for Average 1MHz / 1MHz for Peak, 1 MHz / 1/B kHz for Average Receiver Parameter Attenuation Start ~ Stop Frequency Start ~ Stop Frequency Start ~ Stop Frequency Setting Auto 9kHz~150kHz / RB/VB 200Hz/1KHz for QP/AVG 150kHz~30MHz / RB/VB 9kHz/30KHz for QP/AVG 30MHz~1000MHz / RB/VB 120kHz/1MHz for QP Page 16 of 34 5.5.3. Test Procedures Report No.: TZ230404285-E2 1) Sequence of testing 9 kHz to 30 MHz Setup: --- The equipment was set up to simulate a typical usage like described in the user manual or described by manufacturer. --- If the EUT is a tabletop system, a rotatable table with 0.8 m height is used. --- If the EUT is a floor standing device, it is placed on the ground. --- Auxiliary equipment and cables were positioned to simulate normal operation conditions. --- The AC power port of the EUT (if available) is connected to a power outlet below the turntable. --- The measurement distance is 3 meter. --- The EUT was set into operation. Premeasurement: --- The turntable rotates from 0°to 315°using 45°steps. --- The antenna height is 1.3 meter. --- At each turntable position the analyzer sweeps with peak detection to find the maximum of all emissions Final measurement: --- Identified emissions during the premeasurement the software maximizes by rotating the turntable position (0°to 360°) and by rotating the elevation axes (0°to 360°). --- The final measurement will be done in the position (turntable and elevation) causing the highest emissions with QPK detector. --- The final levels, frequency, measuring time, bandwidth, turntable position, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of the premeasurement and the limit will be stored. Page 17 of 34 2) Sequence of testing 30 MHz to 1 GHz Report No.: TZ230404285-E2 Setup: --- The equipment was set up to simulate a typical usage like described in the user manual or described by manufacturer. --- If the EUT is a tabletop system, a table with 0.8 m height is used, which is placed on the ground plane. --- If the EUT is a floor standing device, it is placed on the ground plane with insulation between both. --- Auxiliary equipment and cables were positioned to simulate normal operation conditions --- The AC power port of the EUT (if available) is connected to a power outlet below the turntable. --- The measurement distance is 3 meter. --- The EUT was set into operation. Premeasurement: --- The turntable rotates from 0°to 315°using 45°steps. --- The antenna is polarized vertical and horizontal. --- The antenna height changes from 1 to 3 meter. --- At each turntable position, antenna polarization and height the analyzer sweeps three times in peak to find the maximum of all emissions. Final measurement: --- The final measurement will be performed with minimum the six highest peaks. --- According to the maximum antenna and turntable positions of premeasurement the software maximize the peaks by changing turntable position (± 45°) and antenna movement between 1 and 4 meter. --- The final measurement will be done with QP detector with an EMI receiver. --- The final levels, frequency, measuring time, bandwidth, antenna height, antenna polarization, turntable angle, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of the premeasurement with marked maximum final measurements and the limit will be stored. Page 18 of 34 3) Sequence of testing 1 GHz to 18 GHz Report No.: TZ230404285-E2 Setup: --- The equipment was set up to simulate a typical usage like described in the user manual or described by manufacturer. --- If the EUT is a tabletop system, a rotatable table with 1.5 m height is used. --- If the EUT is a floor standing device, it is placed on the ground plane with insulation between both. --- Auxiliary equipment and cables were positioned to simulate normal operation conditions --- The AC power port of the EUT (if available) is connected to a power outlet below the turntable. --- The measurement distance is 3 meter. --- The EUT was set into operation. Premeasurement: --- The turntable rotates from 0°to 315°using 45°steps. --- The antenna is polarized vertical and horizontal. --- The antenna height scan range is 1 meter to 2.5 meter. --- At each turntable position and antenna polarization the analyzer sweeps with peak detection to find the maximum of all emissions. Final measurement: --- The final measurement will be performed with minimum the six highest peaks. --- According to the maximum antenna and turntable positions of premeasurement the software maximize the peaks by changing turntable position (±45°) and antenna movement between 1 and 4 meter. This procedure is repeated for both antenna polarizations. --- The final measurement will be done in the position (turntable, EUT-table and antenna polarization) causing the highest emissions with Peak and Average detector. --- The final levels, frequency, measuring time, bandwidth, turntable position, EUT-table position, antenna polarization, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of the premeasurement with marked maximum final measurements and the limit will be stored. Page 19 of 34 4) Sequence of testing above 18 GHz Report No.: TZ230404285-E2 Setup: --- The equipment was set up to simulate a typical usage like described in the user manual or described by manufacturer. --- If the EUT is a tabletop system, a rotatable table with 1.5 m height is used. --- If the EUT is a floor standing device, it is placed on the ground plane with insulation between both. --- Auxiliary equipment and cables were positioned to simulate normal operation conditions --- The AC power port of the EUT (if available) is connected to a power outlet below the turntable. --- The measurement distance is 1 meter. --- The EUT was set into operation. Premeasurement: --- The antenna is moved spherical over the EUT in different polarizations of the antenna. Final measurement: --- The final measurement will be performed at the position and antenna orientation for all detected emissions that were found during the premeasurements with Peak and Average detector. --- The final levels, frequency, measuring time, bandwidth, correction factor, margin to the limit and limit will be recorded. Also a plot with the graph of the premeasurement and the limit will be stored. Page 20 of 34 5.5.4. Test Setup Layout Report No.: TZ230404285-E2 Above 10 GHz shall be extrapolated to the specified distance using an extrapolation factor of 20 dB/decade form 3m to 1.5m. Distance extrapolation factor = 20 log (specific distanc [3m] / test distance [1.5m]) (dB); Limit line = specific limits (dBuV) + distance extrapolation factor [6 dB]. Page 21 of 34 5.5.5. EUT Operation during Test The EUT was programmed to be in continuously transmitting mode. Report No.: TZ230404285-E2 5.5.6. Results of Radiated Emissions (9 kHz~30MHz) Temperature Test Engineer 24 Anna Hu Humidity Configurations 55.2% BT LE Freq. (MHz) - Level (dBuV) - Over Limit (dB) - Over Limit (dBuV) - Remark See Note Note: The amplitude of spurious emissions which are attenuated by more than 20 dB below the permissible value has no need to be reported. Distance extrapolation factor = 40 log (specific distance / test distance) (dB); Limit line = specific limits (dBuV) + distance extrapolation factor. 5.5.7. Results of Radiated Emissions (30MHz~1GHz) Temperature Test Engineer 24 Anna Hu Humidity Configurations 55.2% BT LE Page 22 of 34 Note: The Worst Test result for BT LE 1Mbps mode (Middle Channel) Vertical: Report No.: TZ230404285-E2 Note: 1). Pre-scan all modes and recorded the worst case results in this report 2). Emission level (dBuV/m) = 20 log Emission level (uV/m). 3). Margin=Limit-Result Level Page 23 of 34 Horizontal: Report No.: TZ230404285-E2 Note: 1). Pre-scan all modes and recorded the worst case results in this report 2). Emission level (dBuV/m) = 20 log Emission level (uV/m). 3). Margin=Limit-Result Level Page 24 of 34 5.5.8. Results for Radiated Emissions (From 1GHz-25GHz) Temperature Test Engineer 24 Anna Hu Humidity Configurations Report No.: TZ230404285-E2 56% BT LE BT LE (worst case) Channel 0 / 2402 MHz Ant. Freq. Reading Fac MHz dBuv dB/m 4804.00 4804.00 4804.00 4804.00 75.93 60.74 70.59 61.39 29.07 29.07 29.07 29.07 Pre. Fac. dB 46.02 46.02 46.02 46.02 Cab. Loss dB 1.52 1.52 1.52 1.52 Measured dBuv/m 60.50 45.31 55.16 45.96 Limit dBuv/m 74.00 54.00 74.00 54.00 Margin dB 13.50 8.69 18.84 8.04 Remark Peak Average Peak Average Pol. Horizontal Horizontal Vertical Vertical Channel 19/ 2440MHz Ant. Freq. Reading Fac MHz dBuv dB/m 4880.00 4880.00 4880.00 4880.00 73.04 59.78 72.72 59.38 29.20 29.20 29.20 29.20 Pre. Fac. dB 46.01 46.01 46.01 46.01 Cab. Loss dB 1.54 1.54 1.54 1.54 Measured dBuv/m 57.77 44.51 57.45 44.11 Limit dBuv/m 74.00 54.00 74.00 54.00 Margin dB 16.23 9.49 16.55 9.89 Remark Peak Average Peak Average Pol. Horizontal Horizontal Vertical Vertical Channel 39 / 2480 MHz Ant. Freq. Reading Fac MHz dBuv dB/m 4960.00 4960.00 4960.00 4960.00 69.65 57.23 70.02 60.99 29.33 29.33 29.33 29.33 Pre. Fac. dB 46.00 46.00 46.00 46.00 Cab. Loss dB 1.56 1.56 1.56 1.56 Measured dBuv/m 54.54 42.12 54.91 45.88 Limit dBuv/m 74.00 54.00 74.00 54.00 Margin dB 19.46 11.88 19.09 8.12 Remark Peak Average Peak Average Pol. Horizontal Horizontal Vertical Vertical Notes: 1). Measuring frequencies from 9k~10th harmonic or 26.5GHz (which is less), No emission found between lowest internal used/generated frequency to 30MHz. 2). Radiated emissions measured in frequency range from 9k~10th harmonic or 26.5GHz (which is less) were made with an instrument using Peak detector mode. 3). Data of measurement within this frequency range shown " --- " in the table above means the reading of emissions are attenuated more than 20dB below the permissible limits or the field strength is too small to be measured. 4).Measured = Reading + Ant. Fac - Pre. Fac. + Cab. Loss; Margin = Limit - Measured Page 25 of 34 5.6. Conducted Spurious Emissions and Band Edges Test Report No.: TZ230404285-E2 5.6.1. Standard Applicable According to §15.247 (d): In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement. Attenuation below the general limits specified in Section 15.209(a) is not required. In addition, radiated emissions which fall in the restricted bands, as defined in Section 15.205(a), must also comply with the radiated emission limits specified in Section 15.209(a) (see Section 15.205(c)). 5.6.2. Measuring Instruments and Setting Please refer to section 6 of equipment list in this report. The following table is the setting of the spectrum analyzer. Spectrum Parameter Detector Attenuation RB / VB (Emission in restricted band) RB / VB (Emission in non-restricted band) Setting Peak Auto 100KHz/300KHz 100KHz/300KHz 5.6.3. Test Procedures The transmitter output is connected to a spectrum analyzer. The resolution bandwidth is set to 100 kHz. The video bandwidth is set to 300 kHz The spectrum from 9 kHz to 26.5GHz is investigated with the transmitter set to the lowest, middle, and highest channels. 5.6.4. Test Setup Layout This test setup layout is the same as that shown in section 5.4.4. 5.6.5. EUT Operation during Test The EUT was programmed to be in continuously transmitting mode. 5.6.6. Test Results of Conducted Spurious Emissions Pass Remark: 1. Test results including cable loss; 2. "---"means that the fundamental frequency not for 15.209 limits requirement. 3. Not recorded values as emission level lower than limit at least 20 dBc; 4. Please refer to Appendix.F of Appendix Test Data for BLE;for Conducted Spurious Emissions; 5. Please refer to Appendix.E of Appendix Test Data for BLE for Conducted Band Edges. Page 26 of 34 5.7. AC Power line conducted emissions 5.7.1 Standard Applicable Report No.: TZ230404285-E2 According to §15.207 (a): For an intentional radiator which is designed to be connected to the public utility (AC) power line, the radio frequency voltage that is conducted back onto the AC power line on any frequency or frequencies within the band 150 kHz to 30 MHz shall not exceed 250 microvolts (The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz). The limits at specific frequency range are listed as follows: Frequency Range (MHz) 0.15 to 0.50 0.50 to 5 5 to 30 Limits (dBV) Quasi-peak 66 to 56 56 60 Average 56 to 46 46 50 * Decreasing linearly with the logarithm of the frequency 5.7.2 Block Diagram of Test Setup Vert. reference plane EUT PC EMI receiver LISN Reference ground plane 5.7.3 Test Results Temperature Test Engineer 24.4 Anna Hu PASS. The test data please refer to following page. Humidity Configurations 55.2% BT LE Page 27 of 34 Report No.: TZ230404285-E2 Note: The Worst Test result for BT LE 1Mbps mode (Middle Channel) Live Note: 1). Pre-scan all modes and recorded the worst case results in this report 2). Emission level (dBuV) = 20 log Emission level (uV). 3). Margin=Limit-Level Page 28 of 34 Neutral Report No.: TZ230404285-E2 Note: 1). Pre-scan all modes and recorded the worst case results in this report 2). Emission level (dBuV) = 20 log Emission level (uV). 3). Margin=Limit-Level Page 29 of 34 5.8. Band-edge measurements for radiated emissions Report No.: TZ230404285-E2 5.8.1 Standard Applicable 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)). 5.8.2. Test Setup Layout 5.8.3. Measuring Instruments and Setting Please refer to section 6 of equipment list in this report. The following table is the setting of Spectrum Analyzer. 5.8.4. Test Procedures According to KDB 558074 D01 V04 for Antenna-port conducted measurement. Antenna-port conducted measurements may also be used as an alternative to radiated measurements for demonstrating compliance in the restricted frequency bands. If conducted measurements are performed, then proper impedance matching must be ensured and an additional radiated test for cabinet/case spurious emissions is required. 1. Check the calibration of the measuring instrument using either an internal calibrator or a known signal from an external generator. 2. Remove the antenna from the EUT and then connect to a low loss RF cable from the antenna port to a EMI test receiver, then turn on the EUT and make it operate in transmitting mode. Then set it to Low Channel and High Channel within its operating range, and make sure the instrument is operated in its linear range. 3. Set both RBW and VBW of spectrum analyzer to 100 kHz with a convenient frequency span including 100kHz bandwidth from band edge, for Radiated emissions restricted band RBW=1MHz, VBW=3MHz for peak detector and RBW=1MHz, VBW=1/B for Peak detector. 4. Measure the highest amplitude appearing on spectral display and set it as a reference level. Plot the graph with marking the highest point and edge frequency. 5. Repeat above procedures until all measured frequencies were complete. 6. Measure the conducted output power (in dBm) using the detector specified by the appropriate regulatory agency (see 12.2.2, 12.2.3, and 12.2.4 for guidance regarding measurement procedures for determining quasi-peak, peak, and average conducted output power, respectively). 7. Add the maximum transmit antenna gain (in dBi) to the measured output power level to determine the EIRP level (see 12.2.5 for guidance on determining the applicable antenna gain) 8. Add the appropriate maximum ground reflection factor to the EIRP level (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). Page 30 of 34 Report No.: TZ230404285-E2 9. For devices with multiple antenna-ports, measure the power of each individual chain and sum the EIRP of all chains in linear terms (e.g., Watts, mW). 10. Convert the resultant EIRP level to an equivalent electric field strength using the following relationship: E = EIRP 20log D + 104.8 Where: E = electric field strength in dBV/m, EIRP = equivalent isotropic radiated power in dBm D = specified measurement distance in meters. 11. Since the out-of-band characteristics of the EUT transmit antenna will often be unknown, the use of a conservative antenna gain value is necessary. Thus, when determining the EIRP based on the measured conducted power, the upper bound on antenna gain for a device with a single RF output shall be selected as the maximum in-band gain of the antenna across all operating bands, or 2 dBi, whichever is greater. However, for devices that operate in multiple frequency bands while using the same transmit antenna, the highest gain of the antenna within the operating band nearest in frequency to the restricted band emission being measured may be used in lieu of the overall highest gain when the emission is at a frequency that is within 20 percent of the nearest band edge frequency, but in no case shall a value less than 2 dBi be used. 12. Compare the resultant electric field strength level to the applicable regulatory limit. 13. Perform radiated spurious emission test duress until all measured frequencies were complete. 5.8.5 Test Results PASS. Remark: 1. Test results including cable loss; 2. "---"means that the fundamental frequency not for 15.209 limits requirement. 3. Average Values = Average Reading Values - Duty Cycle Factor 4. Please refer to Appendix.H of Appendix Test Data for BLE;; Page 31 of 34 5.9. Antenna Requirements Report No.: TZ230404285-E2 5.9.1 Standard Applicable According to antenna requirement of §15.203. 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 re-placed by the user, but the use of a standard antenna jack or electrical connector is prohibited. This requirement does not apply to carrier current devices or to devices operated under the provisions of Sections 15.211, 15.213, 15.217, 15.219, or 15.221. Further, this requirement does not apply to intentional radiators that must be professionally installed, such as perimeter protection systems and some field disturbance sensors, or to other intentional radiators which, in accordance with Section 15.31(d), must be measured at the installation site. However, the installer shall be responsible for ensuring that the proper antenna is employed so that the limits in this Part are not exceeded. And according to §15.247(4)(1), system operating in the 2400-2483.5MHz bands that are used exclusively for fixed, point-to-point operations may employ transmitting antennas with directional gain greater than 6dBi provided the maximum peak output power of the intentional radiator is reduced by 1 dB for every 3 dB that the directional gain of the antenna exceeds 6dBi. 5.9.2 Antenna Connected Construction 5.9.2.1. Standard Applicable According to § 15.203, 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. 5.9.2.2. Antenna Connector Construction The directional gains of antenna refer to section 1.1 of this report, and the antenna is an Internal antenna connect to PCB board and no consideration of replacement. Please see EUT photo for details. 5.9.2.3. Results: Compliance. Page 32 of 34 6. LIST OF MEASURING EQUIPMENTS Report No.: TZ230404285-E2 Item Test Equipment Manufacturer Model No. MXA Signal 1 Analyzer 2 Power Sensor Keysight Agilent N9020A U2021XA 3 Power Meter Agilent U2531A 4 Loop Antenna schwarzbeck FMZB1519B 5 Wideband Antenna schwarzbeck VULB 9163 6 Horn Antenna schwarzbeck BBHA 9120D 7 EMI Test Receiver R&S ESCI 8 Controller MF MF7802 9 Amplifier schwarzbeck BBV 9743 10 Amplifier Tonscend TSAMP-0518 SE 11 RF Cable(below 1GHz) HUBER+SUHNER RG214 12 RF Cable(above 1GHz) HUBER+SUHNER RG214 12 Artificial Mains ROHDE & SCHWARZ ENV 216 14 EMI Test Software ROHDE & SCHWARZ ESK1 15 RE test software Tonscend JS32-RE 16 Test Software Tonscend JS1120-3 17 Horn Antenna A-INFO LB-180400-K F 18 Amplifier CDSA PAP-1840 19 Spectrum Analyzer R&S FSP40 Serial No. MY52091623 MY5365004 TW53323507 00023 958 01989 100849/003 N/A 209 -- N/A N/A 101333-IP V1.71 V2.0.2.0 V2.5.77.0418 J211020657 17021 100550 Calibration Due Calibration Date Date 2022/12/28 2023/12/27 2022/12/28 2022/12/28 2022/11/13 2022/11/13 2022/11/13 2022/12/28 N/A 2022/12/28 2023/12/27 2023/12/27 2025/11/12 2025/11/12 2025/11/12 2023/12/27 N/A 2023/12/27 2022/12/28 2023/12/27 2022/12/28 2022/12/28 2023/12/27 2023/12/27 2022/12/28 2023/12/27 N/A N/A N/A 2022/10/12 2022/10/10 2023/1/10 N/A N/A N/A 2024/10/11 2023/10/09 2024/1/9 Page 33 of 34 7. TEST SETUP PHOTOGRAPHS OF EUT Please refer to separated files for Test Setup Photos of the EUT. 8. EXTERIOR PHOTOGRAPHS OF THE EUT Report No.: TZ230404285-E2 Please refer to separated files for External Photos of the EUT. 9. INTERIOR PHOTOGRAPHS OF THE EUT Please refer to separated files for Internal Photos of the EUT. ----------------THE END OF REPORT--------------- Page 34 of 34
Related FCC IDs:
- 2AXUD-K1 - Shenzhen GMK Technology Co., Ltd NucBox [-K1] Microsoft Word 2019