1812TW0101-U3-FCC-DFS Test Report_Rev01

FCC ID: TE7T3U

Test Report

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FCCID_4231674

MRT Technology (Taiwan) Co., Ltd Report No.: 1812TW0101-U3 Phone: +886-3-3288388 Report Version: V01 Web: www.mrt-cert.com Issue Date: 03-26-2019 DFS MEASUREMENT REPORT FCC PART 15 Subpart E FCC ID: TE7T3U APPLICANT: TP-Link Technologies Co., Ltd. Application Type: Certification Product: AC1300 Mini Wireless MU-MIMO USB Adapter Model No.: Archer T3U Brand Name: tp-link FCC Rule Part(s): Part 15 Subpart E - 15.407 Section (h)(2) Test Procedure(s): KDB 905462 D02v02, KDB 905462 D04v01 Type of Device: Client Device without radar detection Test Date: October 26, 2018 ~ March 10, 2019 Reviewed By: ( Paddy Chen ) Approved By: (Chenz Ker) The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in KDB 905462 D02v02. Test results reported herein relate only to the item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Taiwan) Co., Ltd. FCC ID: TE7T3U Page Number: 1 of 25

Report No.: 1812TW0101-U3 Revision History Report No. Version Description Issue Date Note 1812TW0101-U3 Rev. 01 Initial report 03-26-2019 Valid FCC ID: TE7T3U Page Number: 2 of 25

Report No.: 1812TW0101-U3 CONTENTS Description Page Revision History............................................................................................................................. 2 1. INTRODUCTION ..................................................................................................................... 5 1.1. Scope ........................................................................................................................... 5 1.2. MRT Test Location ....................................................................................................... 5 2. PRODUCT INFORMATION ..................................................................................................... 6 2.1. Equipment Description.................................................................................................. 6 2.2. Product Specification Subjective to this report .............................................................. 6 2.3. DFS Band Carrier Frequencies Operation .................................................................... 7 2.4. Test Mode .................................................................................................................... 7 3. DFS DETECTION THRESHOLDS AND RADAR TEST WAVEFORMS................................... 8 3.1. Applicability .................................................................................................................. 8 3.2. DFS Devices Requirements.......................................................................................... 9 3.3. DFS Detection Threshold Values ................................................................................ 10 3.4. Parameters of DFS Test Signals .................................................................................. 11 3.5. Conducted Test Setup ................................................................................................ 14 4. TEST EQUIPMENT CALIBRATION DATE ............................................................................ 15 5. TEST RESULT ...................................................................................................................... 16 5.1. Summary .................................................................................................................... 16 5.2. Radar Waveform Calibration ....................................................................................... 17 5.2.1. Calibration Setup ........................................................................................................ 17 5.2.2. Calibration Procedure ................................................................................................. 17 5.2.3. Cablibration Result ..................................................................................................... 18 5.3. Channel Loading Test Result ...................................................................................... 19 5.4. In-Service Monitoring for Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Period Measurement........................................................................................ 20 5.4.1. Test Limit .................................................................................................................... 20 5.4.2. Test Procedure Used .................................................................................................. 20 5.4.3. Test Result .................................................................................................................. 21 6. CONCLUSION....................................................................................................................... 23 Appendix A - Test Setup Photograph ......................................................................................... 24 Appendix B - EUT Photograph .................................................................................................... 25 FCC ID: TE7T3U Page Number: 3 of 25

Report No.: 1812TW0101-U3 §2.1033 General Information Applicant: TP-Link Technologies Co., Ltd. Applicant Address: Building 24 (floors 1,3,4,5) and 28 (floors1-4), Central Science and Technology Park,Nanshan Shenzhen, 518057 China Manufacturer: TP-Link Technologies Co., Ltd. Manufacturer Address: Building 24 (floors 1,3,4,5) and 28 (floors1-4), Central Science and Technology Park,Nanshan Shenzhen, 518057 China Test Site: MRT Technology (Taiwan) Co., Ltd Test Site Address: No. 38, Fuxing Second Rd., Guishan Dist., Taoyuan City 333, Taiwan (R.O.C) FCC Registration No.: 291082 Test Device Serial No.: N/A Production Pre-Production Engineering Test Facility / Accreditations Measurements were performed at MRT Laboratory located in Fuxing Rd., Taoyuan, Taiwan ( R.O.C ) MRT facility is a FCC registered (Reg. No. 153292 and 291082) test facility with the site description report on file and is designated by the FCC as an Accredited Test Firm.  MRT facility is an IC registered (MRT Reg. No. 21723-1) test laboratory with the site description on file at Industry Canada.  MRT Lab is accredited to ISO 17025 by the American Association for Laboratory Accreditation (TAF) under the American Association for Laboratory Accreditation Program (TAF Cert. No. 3261) in EMC, Telecommunications and Radio testing for FCC, Industry Taiwan, EU and TELEC Rules. FCC ID: TE7T3U Page Number: 4 of 25

Report No.: 1812TW0101-U3 1. INTRODUCTION 1.1. Scope Measurement and determination of electromagnetic emissions (EMC) of radio frequency devices including intentional and/or unintentional radiators for compliance with the technical rules and regulations of the Federal Communications Commission and the Industry Canada Certification and Engineering Bureau. 1.2. MRT Test Location The map below shows the location of the MRT LABORATORY, its proximity to the Taoyuan City. These measurement tests were conducted at the MRT Technology (Taiwan) Co., Ltd. Facility located at No.38, Fuxing 2nd Rd., Guishan Dist., Taoyuan City 33377, Taiwan (R.O.C). FCC ID: TE7T3U Page Number: 5 of 25

Report No.: 1812TW0101-U3 2. PRODUCT INFORMATION 2.1. Equipment Description Product Name: AC1300 Mini Wireless MU-MIMO USB Adapter Model No.: Archer T3U Brand Name: tp-link Wi-Fi Specification: 802.11a/b/g/n/ac 2.2. Product Specification Subjective to this report Frequency Range For 802.11a/n-HT20/ac-VHT20: 5180~5240MHz, 5260~5320MHz, 5500~5580MHz, 5660~5700MHz 5745~5825MHz For 802.11n-HT40/ac-VHT40: 5190~5230MHz, 5270~5310MHz, 5510MHz, 5550MHz, 5670MHz 5755~5795MHz For 802.11ac-VHT80: 5210MHz, 5290MHz, 5530MHz, 5775MHz Type of Modulation 802.11a/n/ac: OFDM Data Rate: 802.11a: 6/9/12/18/24/36/48/54Mbps 802.11n: up to 300Mbps 802.11ac: up to 866.6Mbps Uniform Spreading For the 5250-5350MHz, 5470-5725 MHz bands, the Master device provides, on aggregate, uniform loading of the spectrum across all devices by selecting an operating channel among the available channels using a random algorithm. FCC ID: TE7T3U Page Number: 6 of 25

Report No.: 1812TW0101-U3 2.3. DFS Band Carrier Frequencies Operation 802.11a/n-HT20/ac-VHT20 Channel Frequency Channel Frequency Channel Frequency 52 5260 MHz 56 5280 MHz 60 5300 MHz 64 5320 MHz 100 5500 MHz 104 5520 MHz 108 5540 MHz 112 5560 MHz 116 5580 MHz 132 5660 MHz 136 5680 MHz 140 5700 MHz 802.11n-HT40/ac-VHT40 Channel Frequency Channel Frequency Channel Frequency 54 5270 MHz 62 5310 MHz 102 5510 MHz 110 5550 MHz 134 5670 MHz -- -- 802.11ac-VHT80 Channel Frequency Channel Frequency Channel Frequency 58 5290 MHz 106 5530 MHz -- -- 2.4. Test Mode Test Mode Mode 1: Communication with the Access Point FCC ID: TE7T3U Page Number: 7 of 25

Report No.: 1812TW0101-U3 3. DFS DETECTION THRESHOLDS AND RADAR TEST WAVEFORMS 3.1. Applicability The following table from FCC KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02 lists the applicable requirements for the DFS testing. Requirement Operational Mode Master Client Without Client With Radar Radar Detection Detection Non-Occupancy Period Yes Not required Yes DFS Detection Threshold Yes Not required Yes Channel Availability Check Time Yes Not required Not required U-NII Detection Bandwidth Yes Not required Yes Table 3-1: Applicability of DFS Requirements Prior to Use of a Channel Requirement Operational Mode Master Device or Client Without Client With Radar Detection Radar Detection DFS Detection Threshold Yes Not required Channel Closing Transmission Time Yes Yes Channel Move Time Yes Yes U-NII Detection Bandwidth Yes Not required Additional requirements for devices Master Device or Client Client Without Radar with multiple bandwidth modes with Radar Detection Detection U-NII Detection Bandwidth and All BW modes must be Not required Statistical Performance Check tested Channel Move Time and Channel Test using widest BW Test using the widest BW Closing Transmission Time mode available mode available for the link All other tests Any single BW mode Not required Note: Frequencies selected for statistical performance check should include several frequencies within the radar detection bandwidth and frequencies near the edge of the radar detection bandwidth. For 802.11 devices it is suggested to select frequencies in each of the bonded 20 MHz channels and the channel center frequency. Table 3-2: Applicability of DFS Requirements during normal operation FCC ID: TE7T3U Page Number: 8 of 25

Report No.: 1812TW0101-U3 3.2. DFS Devices Requirements Per FCC KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02 the following are the requirements for Client Devices: a) A Client Device will not transmit before having received appropriate control signals from a Master Device. b) A Client Device will stop all its transmissions whenever instructed by a Master Device to which it is associated and will meet the Channel Move Time and Channel Closing transmission time requirements. The Client Device will not resume any transmissions until it has again received control signals from a Master Device. c) If a Client Device is performing In-Service Monitoring and detects a Radar Waveform above the DFS Detection Threshold, it will inform the Master Device. This is equivalent to the Master Device detecting the Radar Waveform. d) Irrespective of Client Device or Master Device detection the Channel Move Time and Channel Closing Transmission Time requirements remain the same. e) The client test frequency must be monitored to ensure no transmission of any type has occurred for 30 minutes. Note: If the client moves with the master, the device is considered compliant if nothing appears in the client non-occupancy period test. For devices that shut down (rather than moving channels), no beacons should appear. Channel Move Time and Channel Closing Transmission Time requirements are listed in the following table. Parameter Value Non-occupancy period Minimum 30 minutes Channel Availability Check Time 60 seconds 10 seconds Channel Move Time See Note 1. 200 milliseconds + an aggregate of 60 Channel Closing Transmission Time milliseconds over remaining 10 second period. See Notes 1 and 2. Minimum 100% of the U-NII 99% transmission U-NII Detection Bandwidth power bandwidth. See Note 3. Note 1: Channel Move Time and the Channel Closing Transmission Time should be performed with Radar Type 0. The measurement timing begins at the end of the Radar Type 0 burst. Note 2: The Channel Closing Transmission Time is comprised of 200 milliseconds starting at the beginning of the Channel Move Time plus any additional intermittent control signals required to facilitate a Channel move (an aggregate of 60 milliseconds) during the remainder of the 10 second period. The aggregate duration of control signals will not count quiet periods in between FCC ID: TE7T3U Page Number: 9 of 25

Report No.: 1812TW0101-U3 transmissions. Note 3: During the U-NII Detection Bandwidth detection test, radar type 0 should be used. For each frequency step the minimum percentage of detection is 90 percent. Measurements are performed with no data traffic. Table 3-3: DFS Response Requirements 3.3. DFS Detection Threshold Values The DFS detection thresholds are defined for Master devices and Client Devices with In-service monitoring. These detection thresholds are listed in the following table. Maximum Transmit Power Value (See Notes 1, 2, and 3) EIRP ≥ 200 milliwatt -64 dBm EIRP < 200 milliwatt and -62 dBm power spectral density < 10 dBm/MHz EIRP < 200 milliwatt that do not meet the power spectral density -64 dBm requirement Note 1: This is the level at the input of the receiver assuming a 0 dBi receive antenna. Note 2: Throughout these test procedures an additional 1 dB has been added to the amplitude of the test transmission waveforms to account for variations in measurement equipment. This will ensure that the test signal is at or above the detection threshold level to trigger a DFS response. Note3: EIRP is based on the highest antenna gain. For MIMO devices refer to KDB Publication 662911 D01. Table 3-4: Detection Thresholds for Master Devices and Client Devices with Radar Detection FCC ID: TE7T3U Page Number: 10 of 25

Report No.: 1812TW0101-U3 3.4. Parameters of DFS Test Signals This section provides the parameters for required test waveforms, minimum percentage of successful detections, and the minimum number of trials that must be used for determining DFS conformance. Step intervals of 0.1 microsecond for Pulse Width, 1 microsecond for PRI, 1 MHz for chirp width and 1 for the number of pulses will be utilized for the random determination of specific test waveforms. Short Pulse Radar Test Waveforms Radar Pulse PRI Number of Pulses Minimum Minimum Type Width (μsec) Percentage of Number of (μsec) Successful Trials Detection 0 1 1428 18 See Note 1 See Note 1 1 1 Test A: 15 unique 60% 30 PRI values randomly  1      selected from the list  360   Roundup  6  of 23 PRI values in  19 10   PRIusec  Table 3-6   Test B: 15 unique PRI values randomly selected within the range of 518-3066 μsec, with a minimum increment of 1 μsec, excluding PRI values selected in Test A 2 1-5 150-230 23-29 60% 30 3 6-10 200-500 16-18 60% 30 4 11-20 200-500 12-16 60% 30 Aggregate (Radar Types 1-4) 80% 120 Note 1: Short Pulse Radar Type 0 should be used for the detection bandwidth test, channel move time, and channel closing time tests. Table 3-5: Parameters for Short Pulse Radar Waveforms FCC ID: TE7T3U Page Number: 11 of 25

Report No.: 1812TW0101-U3 A minimum of 30 unique waveforms are required for each of the Short Pulse Radar Types 2 through 4. If more than 30 waveforms are used for Short Pulse Radar Types 2 through 4, then each additional waveform must also be unique and not repeated from the previous waveforms. Pulse Repetition Frequency Pulse Repetition Frequency Pulse Repetition Interval Number (Pulses Per Second) (Microseconds) 1 1930.5 518 2 1858.7 538 3 1792.1 558 4 1730.1 578 5 1672.2 598 6 1618.1 618 7 1567.4 638 8 1519.8 658 9 1474.9 678 10 1432.7 698 11 1392.8 718 12 1355 738 13 1319.3 758 14 1285.3 778 15 1253.1 798 16 1222.5 818 17 1193.3 838 18 1165.6 858 19 1139 878 20 1113.6 898 21 1089.3 918 22 1066.1 938 23 326.2 3066 Table 3-6: Pulse Repetition Intervals Values for Test A FCC ID: TE7T3U Page Number: 12 of 25

Report No.: 1812TW0101-U3 Long Pulse Radar Test Waveform Radar Pulse Chirp PRI Number Number Minimum Minimum Type Width Width (μsec) of Pulses of Bursts Percentage of Number of (μsec) (MHz) per Burst Successful Trials Detection 1000 - 5 50 - 100 5 - 20 1-3 8 - 20 80% 30 2000 Table 3-7: Parameters for Long Pulse Radar Waveforms The parameters for this waveform are randomly chosen. Thirty unique waveforms are required for the Long Pulse Radar Type waveforms. If more than 30 waveforms are used for the Long Pulse Radar Type waveforms, then each additional waveform must also be unique and not repeated from the previous waveforms. Frequency Hopping Radar Test Waveform Radar Pulse PRI Pulses Hopping Hopping Minimum Minimum Per Rate Sequence Type Width (μsec) Percentage of Number of Hop (kHz) Length (μsec) (msec) Successful Trials Detection 6 1 333 9 0.333 300 70% 30 Table 3-8: Parameters for Frequency Hopping Radar Waveforms For the Frequency Hopping Radar Type, the same Burst parameters are used for each waveform. The hopping sequence is different for each waveform and a 100-length segment is selected from the hopping sequence defined by the following algorithm: The first frequency in a hopping sequence is selected randomly from the group of 475 integer frequencies from 5250 – 5724MHz. Next, the frequency that was just chosen is removed from the group and a frequency is randomly selected from the remaining 474 frequencies in the group. This process continues until all 475 frequencies are chosen for the set. For selection of a random frequency, the frequencies remaining within the group are always treated as equally likely. FCC ID: TE7T3U Page Number: 13 of 25

Report No.: 1812TW0101-U3 3.5. Conducted Test Setup The FCC KDB 905462 D02 UNII DFS Compliance Procedures New Rules v01 describes a radiated test setup and a conducted test setup. The conducted test setup was used for this testing. Figure 3-1 shows the typical test setup. Figure 3-1: Conducted Test Setup where UUT is a Client and Radar Test Waveforms are injected into the Masters FCC ID: TE7T3U Page Number: 14 of 25

Report No.: 1812TW0101-U3 4. TEST EQUIPMENT CALIBRATION DATE Dynamic Frequency Selection Instrument Manufacturer Type No. Asset No. Cali. Interval Cali. Due Date EXA Signal Analyzer Keysight N9010A MRTTWA00012 1 year 2019/7/24 Vector Signal Generator Keysight N5182B MRTTWA00010 1 year 2019/4/17 Combiner WOKEN 0120A04208001S MRTTWE00008 1 year 2019/6/12 Access Point Information Instrument Manufacturer Type No. FCC ID Access Point TP-Link Technologies Co., Ltd. Archer AX6000 TE7AX6000 Software Version Manufacturer Function Pulse Building(N7607B) V 3.0.0 Keysight Radar Signal Generation Software DFS Tool V 6.7 Keysight DFS Test Software FCC ID: TE7T3U Page Number: 15 of 25

Report No.: 1812TW0101-U3 5. TEST RESULT 5.1. Summary Product Name: AC1300 Mini Wireless MU-MIMO USB Adapter FCC ID: TE7T3U Parameter Limit Test Result Reference Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Refer Table 3-3 Pass Section 5.4 Period Measurement FCC ID: TE7T3U Page Number: 16 of 25

Report No.: 1812TW0101-U3 5.2. Radar Waveform Calibration 5.2.1.Calibration Setup The conducted test setup was used for this calibration testing. Figure 3-2 shows the typical test setup. Figure 3-2: Conducted Test Setup 5.2.2.Calibration Procedure The Interference Radar Detection Threshold Level is (-64dBm) + (0) [dBi] + 1 dB= -63 dBm that had been taken into account the output power range and antenna gain. The above equipment setup was used to calibrate the conducted Radar Waveform. A vector signal generator was utilized to establish the test signal level for each radar type. During this process there were replace 50ohm terminal form Master and Client device and no transmissions by either the Master or Client Device. The spectrum analyzer was switched to the zero span (Time Domain) at the frequency of the Radar Waveform generator. Peak detection was used. The spectrum analyzer resolution bandwidth (RBW) and video bandwidth (VBW) were set to at least 3MHz. The vector signal generator amplitude was set so that the power level measured at the spectrum analyzer was (-64dBm) + (0) [dBi] + 1 dB= -63dBm. Capture the spectrum analyzer plots on short pulse radar types, long pulse radar type and hopping radar waveform. FCC ID: TE7T3U Page Number: 17 of 25

Report No.: 1812TW0101-U3 5.2.3.Cablibration Result Radar #0 DFS detection threshold level and the burst of pulses on the Channel frequency FCC ID: TE7T3U Page Number: 18 of 25

Report No.: 1812TW0101-U3 5.3. Channel Loading Test Result System testing was performed with the designated MPEG test file that streams full motion video from the AC1300 Mini Wireless MU-MIMO USB Adapter to the Client in full motion video mode using the media player with the V2.61 Codec package. This file is used by IP and Frame based systems for loading the test channel during the In-service compliance testing of the U-NII device Channel Loading Plot - 802.11ac-VHT80 - 5530MHz Test Mode Packet ratio Requirement ratio Test Result 11ac-VHT80 - 5530MHz 36.61% >17% Pass FCC ID: TE7T3U Page Number: 19 of 25

Report No.: 1812TW0101-U3 5.4. In-Service Monitoring for Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Period Measurement 5.4.1.Test Limit The EUT has In-Service Monitoring function to continuously monitor the radar signals. If the radar is detected, must leave the channel (Shutdown). The Channel Move Time to cease all transmissions on the current channel upon detection of a Radar Waveform above the DFS Detection Threshold within 10 sec. The total duration of Channel Closing Transmission Time is 260ms, consisting of data signals and the aggregate of control signals, by a U-NII device during the Channel Move Time. The Non-Occupancy Period time is 30 minute during which a Channel will not be utilized after a Radar Waveform is detected on that Channel. 5.4.2.Test Procedure Used 1. The test should be performed with Radar Type 0. The measurement timing begins at the end of the Radar Type 0. 2. When the radar burst with a level equal to the DFS Detection Threshold + 1dB is generated on the Operating Channel of the U-NII device. A U-NII device operating as a Master Device will associate with the Client Device at Channel. Stream the MPEG test file from the Master Device to the Client Device on the selected Channel for the entire period of the test. At time T0 the Radar Waveform generator sends a Burst of pulses for each of the radar types at Detection Threshold + 1dB. 2. Observe the transmissions of the EUT at the end of the radar Burst on the Operating Channel. Measure and record the transmissions from the EUT during the observation time (Channel Move Time). 3. Measurement of the aggregate duration of the Channel Closing Transmission Time method. With the spectrum analyzer set to zero span tuned to the center frequency of the EUT operating channel at the radar simulated frequency, peak detection, and max hold, the dwell time per bin is given by: Dwell (1.5ms) = S (12 sec) / B (8000); where Dwell is the dwell time per spectrum analyzer sampling bin, S is the sweep time and B is the number of spectrum analyzer sampling bins. An upper bound of the aggregate duration of the intermittent control signals of Channel Closing Transmission Time is calculated by: 80MHz: C = N X Dwell; where C is the Closing Time, N is the number of spectrum analyzer sampling bins showing a U-NII transmission and Dwell is the dwell time per bin. 4. Measure the UUT for more than 30 minutes following the channel close/move time to verify that the UUT does not resume any transmissions on this Channel. FCC ID: TE7T3U Page Number: 20 of 25

Report No.: 1812TW0101-U3 5.4.3.Test Result Channel Move Time and Channel Closing Transmission Time for 802.11ac-VHT80 - 5530MHz FCC ID: TE7T3U Page Number: 21 of 25

Report No.: 1812TW0101-U3 Non-Occupancy Period for 802.11ac-VHT80 - 5530MHz Parameter Test Result Limit Type 0 Channel Move Time (s) 0.469s ˂10s Channel Closing Transmission Time (ms) 6.0ms ˂ 60ms (Note) Non-Occupancy Period (min) ≥ 30min ≥ 30 min Note: The Channel Closing Transmission Time is comprised of 200 milliseconds starting at the beginning of the Channel Move Time plus any additional intermittent control signals required to facilitate a Channel move (an aggregate of 60 milliseconds) during the remainder of the 10 seconds period. The aggregate duration of control signals will not count quiet periods in between transmissions. FCC ID: TE7T3U Page Number: 22 of 25

Report No.: 1812TW0101-U3 6. CONCLUSION The data collected relate only the item(s) tested and show that the AC1300 Mini Wireless MU-MIMO USB Adapter is in compliance with Part 15E of the FCC Rules. The End FCC ID: TE7T3U Page Number: 23 of 25

Report No.: 1812TW0101-U3 Appendix A - Test Setup Photograph Refer to “1812TW0101-UT” file. FCC ID: TE7T3U Page Number: 24 of 25

Report No.: 1812TW0101-U3 Appendix B - EUT Photograph Refer to “1812TW010-UE” file. FCC ID: TE7T3U Page Number: 25 of 25


Document Created: 2019-04-03 19:50:56
Document Modified: 2019-04-03 19:50:56
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