Test Rpt DFS

FCC ID: A4RH0A

Test Report

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FCCID_3567408

TEST REPORT Covering the DYNAMIC FREQUENCY SELECTION (DFS) REQUIREMENTS OF FCC Part 15 Subpart E (UNII), RSS-247 Google Inc. Model: H0A IC CERTIFICATION #: 10395A-H0A FCC ID: A4RH0A COMPANY: Google Inc. 1600 Amphitheatre Pky Mountain View, CA, 94043 TEST SITE: National Technical Systems - Silicon Valley 41039 Boyce Road Fremont, CA 94538 REPORT DATE: August 14, 2017 REVISION DATE: August 25, 2017 FINAL TEST DATE: July 25, 2017 TEST ENGINEER: Mehran Birgani TOTAL NUMBER OF PAGES: 27 National Technical Systems - Silicon Valley is accredited by the A2LA, certificate number 0214.26, to perform the test(s) listed in this report, except where noted otherwise. This report and the information contained herein represent the results of testing test articles identified and selected by the client performed to specifications and/or procedures selected by the client. National Technical Systems (NTS) makes no representations, expressed or implied, that such testing is adequate (or inadequate) to demonstrate efficiency, performance, reliability, or any other characteristic of the articles being tested, or similar products. This report should not be relied upon as an endorsement or certification by NTS of the equipment tested, nor does it represent any statement whatsoever as to its merchantability or fitness of the test article, or similar products, for a particular purpose. This report shall not be reproduced except in full File: R105539 Rev 1 Page 1 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 VALIDATING SIGNATORIES PROGRAM MGR / TECHNICAL REVIEWER: ______________________________ Mark Hill Staff Engineer REPORT PREPARER: ______________________________ Mehran Birgani Senior EMC Engineer QUALITY ASSURANCE DELEGATE ______________________________ David Guidotti Senior Technical Writer File: R105539 Rev 1 Page 2 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 REVISION HISTORY Rev # Date Comments Modified By - August 14, 2017 Initial Release - 1 August 25, 2017 Removed detailed product information for confidentiality MEH File: R105539 Rev 1 Page 3 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 TABLE OF CONTENTS TITLE PAGE ...............................................................................................................................................................1 VALIDATING SIGNATORIES .................................................................................................................................2 REVISION HISTORY ................................................................................................................................................3 TABLE OF CONTENTS ............................................................................................................................................4 LIST OF TABLES .......................................................................................................................................................5 LIST OF FIGURES .....................................................................................................................................................5 SCOPE ..........................................................................................................................................................................6 OBJECTIVE ................................................................................................................................................................6 STATEMENT OF COMPLIANCE ...........................................................................................................................6 DEVIATIONS FROM THE STANDARD ................................................................................................................6 TEST RESULTS ..........................................................................................................................................................7 TEST RESULTS SUMMARY – FCC PART 15, CLIENT DEVICE........................................................................7 MEASUREMENT UNCERTAINTIES ....................................................................................................................7 EQUIPMENT UNDER TEST (EUT) DETAILS ......................................................................................................8 GENERAL ................................................................................................................................................................8 ENCLOSURE ...........................................................................................................................................................8 MODIFICATIONS ...................................................................................................................................................8 SUPPORT EQUIPMENT .........................................................................................................................................9 EUT INTERFACE PORTS ......................................................................................................................................9 EUT OPERATION ...................................................................................................................................................9 RADAR WAVEFORMS ...........................................................................................................................................10 DFS TEST METHODS .............................................................................................................................................12 RADIATED TEST METHOD................................................................................................................................12 DFS MEASUREMENT INSTRUMENTATION ...................................................................................................14 RADAR GENERATION SYSTEM .......................................................................................................................14 CHANNEL MONITORING SYSTEM ..................................................................................................................15 RADAR GENERATOR PLOTS.............................................................................................................................16 DFS MEASUREMENT METHODS .......................................................................................................................22 DFS – CHANNEL CLOSING TRANSMISSION TIME AND CHANNEL MOVE TIME ...................................22 DFS – CHANNEL NON-OCCUPANCY AND VERIFICATION OF PASSIVE SCANNING .............................22 APPENDIX A TEST EQUIPMENT CALIBRATION DATA ...............................................................................23 APPENDIX B TEST DATA TABLES FOR RADAR DETECTION PROBABILITY .......................................24 APPENDIX C TEST DATA TABLES AND PLOTS FOR CHANNEL CLOSING ............................................25 FCC PART 15 SUBPART E CHANNEL CLOSING MEASUREMENTS ..................................................................25 END OF REPORT.....................................................................................................................................................27 File: R105539 Rev 1 Page 4 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 LIST OF TABLES Table 1 - FCC Part 15 Subpart E Client Device Test Result Summary ....................................................... 7 Table 2 - FCC Short Pulse Radar Test Waveforms .................................................................................... 10 Table 3 - FCC Long Pulse Radar Test Waveforms .................................................................................... 11 Table 4 - FCC Frequency Hopping Radar Test Waveforms....................................................................... 11 Table 5 - FCC Part 15 Subpart E Channel Closing Test Results................................................................ 25 LIST OF FIGURES Figure 1 Test Configuration for radiated Measurement Method ................................................................ 12 Figure 2 SA Noise Floor During Testing (radar shown at 520 ms)............................................................ 15 Figure 3 FCC Type 1 Radar (18 pulses) ..................................................................................................... 16 Figure 4 FCC Type 2 Radar (24 pulses) ..................................................................................................... 17 Figure 5 FCC Type 3 Radar (17 pulses) ..................................................................................................... 18 Figure 6 FCC Type 4 Radar (16 pulses) ..................................................................................................... 19 Figure 7 FCC Type 5 Radar (burst with three pulses, 1650 µs first period) .............................................. 20 Figure 8 FCC Type 6 Radar (9 pulses in each burst) ................................................................................. 21 Figure 9 Channel Utilization during In-Service Detection Measurements (20MHz mode) ....................... 24 Figure 10 Channel Closing Time and Channel Move Time (20MHz mode) – 40 second plot .................. 25 Figure 11 Close-Up of Transmissions Occurring More Than 200ms After The End of Radar ................. 26 File: R105539 Rev 1 Page 5 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 SCOPE Test data has been taken pursuant to the relevant DFS requirements of the following standard(s): • FCC Part 15 Subpart E Unlicensed National Information Infrastructure (U-NII) Devices. • RSS-247 Local Area Network Devices. Tests were performed in accordance with these standards together with the current published versions of the basic standards referenced therein including FCC KDB 905462 D02 and FCC KDB 905462 D03 as outlined in NTS Silicon Valley test procedures. The test results recorded herein are based on a single type test of the Google Inc. model H0A and therefore apply only to the tested sample. The sample was selected and prepared by Dominik Mente of Google Inc. OBJECTIVE The objective of the manufacturer is to comply with the standards identified in the previous section. In order to demonstrate compliance, the manufacturer or a contracted laboratory makes measurements and takes the necessary steps to ensure that the equipment complies with the appropriate technical standards. Compliance with some DFS features is covered through a manufacturer statement or through observation of the device. STATEMENT OF COMPLIANCE The tested sample of the Google Inc. model H0A complied with the DFS requirements of FCC Part 15.407(h)(2), and RSS-247 Issue 2. Maintenance of compliance is the responsibility of the manufacturer. Any modifications to the product should be assessed to determine their potential impact on the compliance status of the device with respect to the standards detailed in this test report. DEVIATIONS FROM THE STANDARD No deviations were made from the test methods and requirements covered by the scope of this report. File: R105539 Rev 1 Page 6 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 TEST RESULTS TEST RESULTS SUMMARY – FCC Part 15, CLIENT DEVICE Table 1 - FCC Part 15 Subpart E Client Device Test Result Summary Radar EUT Measured Description Requirement Test Data Status Type Frequency Value Channel closing Type 0 5700MHz 0 ms 60 ms Appendix C Complies transmission time Channel move time Type 0 5700MHz 0.1 s 10 s Appendix C Complies Non-occupancy 5700MHz Type 0 > 30 minutes > 30 minutes Appendix C Complies period - associated (see note 3) Passive Scanning N/A N/A Refer to manufacturer attestation 1) Tests were performed using the radiated test method. 2) Channel availability check and detection threshold are not applicable to client devices. 3) After the channel move the client re-associated with the master device on the new channel. MEASUREMENT UNCERTAINTIES ISO/IEC 17025 requires that an estimate of the measurement uncertainties associated with the emissions test results be included in the report. The measurement uncertainties given below are based on a 95% confidence level, with a coverage factor (k=2) and were calculated in accordance with UKAS document LAB 34. Measurement Measurement Unit Expanded Uncertainty Timing Timing resolution (Channel move time, aggregate ms ± 0.24% transmission time) Timing seconds 5 seconds (non occupancy period) DFS Threshold (radiated) dBm 1.6 DFS Threshold (conducted) dBm 1.2 File: R105539 Rev 1 Page 7 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 EQUIPMENT UNDER TEST (EUT) DETAILS GENERAL The Google Inc. model H0A is an 802.11abgn/ac SISO Media Streaming Device capable of working both in 2.4GHz and 5.0GHz bands The sample was received on July 12, 2017 and tested on July 25, 2017. The EUT consisted of the following component(s): Manufacturer Model Description Serial Number Google Inc. H0A Media Streaming Device 7606LZZ8J0 The manufacturer declared values for the EUT operational characteristics that affect DFS are as follows: Operating Modes (5250 – 5350 MHz, 5470 – 5725 MHz) Client Device (no In Service Monitoring, no Ad-Hoc mode) (Note – for Canada, EUT operation is prohibited in the 5600-5650MHz band) Antenna Gains / EIRP (5250 – 5350 MHz, 5470 – 5725 MHz) 5250 – 5350 MHz 5470 – 5725 MHz Lowest Antenna Gain (dBi) 3.7 3.7 Highest Antenna Gain (dBi) 3.7 3.7 EIRP Output Power (dBm) 19.5 19.8 Power can exceed 200mW eirp Channel Protocol IP Based ENCLOSURE The EUT enclosure is primarily constructed of uncoated plastic. MODIFICATIONS The EUT did not require modifications during testing in order to comply with the requirements of the standard(s) referenced in this test report. File: R105539 Rev 1 Page 8 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 SUPPORT EQUIPMENT The following equipment was used as support equipment for testing: Manufacturer Model Description Serial Number FCC ID Netgear ASW105/B1 Ethernet Switch RP6114ADB039891 - HP Pavilion Laptop Computer - - Cisco AIR-AP1252AG-A-K9 Access Point FTX1209906V LDK102061 Nest A0017 AC/DC Adapter - - Dell Latitude Laptop Computer 6DK55S1 DoC The italicized device was the master device. EUT INTERFACE PORTS The I/O cabling configuration during testing was as follows: Cable(s) Port Connected To Description Shielded or Unshielded Length (m) DC Power AC/DC Adapter coax shielded 1.5 EUT OPERATION The EUT was operating with the following software listed below. The software is secured by encryption to prevent the user from disabling the DFS function. Client Device: 1.0 The streamed file was iperf and the client device configured to receive the file. The channel loading was evaluated to be 17.8% (refer to figure 9) meeting the approximately 17% loading as required by FCC KDB 905462 D02. Refer to the H0A theory of operation document for the information about the power-on cycle time, statement about security of radar detection parameters and initial channel selection. The RF energy emitted from the H0A is below the FCC 15.109 limits for unintentional radiators when it is not transmitting. Refer to separate report covering unintentional emissions. File: R105539 Rev 1 Page 9 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 RADAR WAVEFORMS Table 2 - FCC Short Pulse Radar Test Waveforms Minimum Minimum Pulse Width PRI Pulses / Radar Type Detection Number of (µsec) (µsec) burst Percentage Trials 0 1 1428 18 See Note 1 1a 15 unique PRI 15 values randomly selected from the list of 23 Round PRI values in Up Note 2 below 1 1 1/360* 60% 1b 518-3066 with 15 19*106/ minimum PRI µsec increment of 1 µsec, excluding PRI values selected in 1a 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 is used for the detection bandwidth test, channel move time, and channel closing time tests. Note 2: Pulse repetition intervals values for Test 1a above 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 File: R105539 Rev 1 Page 10 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Table 3 - FCC Long Pulse Radar Test Waveforms Pulse Chirp Minimum Minimum Radar PRI Pulses / Number Width Width Detection Number of Type (µsec) burst of Bursts (µsec) (MHz) Percentage Trials 5 50-100 5-20 1000- 1-3 8-20 80% 30 2000 Table 4 - FCC Frequency Hopping Radar Test Waveforms Hopping Pulse Hopping Minimum Minimum Radar PRI Pulses / Sequence Width Rate Detection Number of Type (µsec) hop Length (µsec) (kHz) Percentage Trials (msec) 6 1 333 9 0.333 300 70% 30 File: R105539 Rev 1 Page 11 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 DFS TEST METHODS RADIATED TEST METHOD The combination of master and slave devices is located in an anechoic chamber. The simulated radar waveform is transmitted from a directional horn antenna (typically an EMCO 3115) toward the unit performing the radar detection (radar detection device, RDD). Every effort is made to ensure that the main beam of the EUT’s antenna is aligned with the radar-generating antenna which is oriented in vertical polarization. Anechoic Chamber Master Device Radar ~3m Antenna Monitoring Antenna Traffic Monitoring Radar Generation System System Figure 1 Test Configuration for radiated Measurement Method File: R105539 Rev 1 Page 12 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 The signal level of the simulated waveform is set to a reference level equal to the threshold level (plus 1dB if testing against FCC requirements). Lower levels may also be applied on request of the manufacturer. The level reported is the level at the RDD antenna and so it is not corrected for the RDD’s antenna gain. The RDD is configured with the lowest gain antenna assembly intended for use with the device. The signal level is verified by measuring the CW signal level from the radar generation system using a reference antenna of gain GREF (dBi). The radar signal level is calculated from the measured level, R (dBm), and any cable loss, L (dB), between the reference antenna and the measuring instrument: Applied level (dBm) = R – GREF + L If both master and client devices have radar detection capability then the device not under test is positioned with absorbing material between its antenna and the radar generating antenna, and the radar level at the non RDD is verified to be at least 20dB below the threshold level to ensure that any responses are due to the RDD detecting radar. The antenna connected to the channel monitoring subsystem is positioned to allow both master and client transmissions to be observed, with the level of the EUT’s transmissions between 6 and 10dB higher than those from the other device. File: R105539 Rev 1 Page 13 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 DFS MEASUREMENT INSTRUMENTATION RADAR GENERATION SYSTEM An Agilent PSG is used as the radar-generating source. The integral arbitrary waveform generators are programmed using Agilent’s “Pulse Building” software and NTS Silicon Valley custom software to produce the required waveforms, with the capability to produce both un-modulated and modulated (FM Chirp) pulses. Where there are multiple values for a specific radar parameter then the software selects a value at random and, for FCC tests, the software verifies that the resulting waveform is truly unique. With the exception of the hopping waveforms required by the FCC’s rules (see below), the radar generator is set to a single frequency within the radar detection bandwidth of the EUT. The frequency is varied from trial to trial by stepping in 5MHz steps. For radar types with variable parameters, each detection probability trial is performed using a unique set of parameters obtained by a random selection with uniform distribution for each of the variable parameters. Frequency hopping radar waveforms are simulated using a time domain model. A randomly hopping sequence algorithm (which uses each channel in the hopping radar’s range once in a hopping sequence) generates a hop sequence. A segment of the first 100 elements of the hop sequence are then examined to determine if it contains one or more frequencies within the radar detection bandwidth of the EUT. If it does not then the first element of the segment is discarded and the next frequency in the sequence is added. The process repeats until a valid segment is produced. The radar system is then programmed to produce bursts at time slots coincident with the frequencies within the segment that fall in the detection bandwidth. The frequency of the generator is stepped in 1 MHz increments across the EUT’s detection range. The radar signal level is verified during testing using a long duration pulse waveform generated in the same manner as the normal radar generated signals. The generator output is connected to the coupling port of the conducted set-up or to the radar-generating antenna. The radar generating antenna (when used) is oriented for vertical polarization. File: R105539 Rev 1 Page 14 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 CHANNEL MONITORING SYSTEM Channel monitoring is achieved using a spectrum analyzer and digital storage oscilloscope. The analyzer is configured in a zero-span mode, center frequency set to the radar waveform’s frequency or the center frequency of the EUT’s operating channel. The IF output of the analyzer is connected to one input of the oscilloscope. A signal generator output is set to send either the modulating signal directly or a pulse gate with an output pulse co-incident with each radar pulse. This output is connected to a second input on the oscilloscope and the oscilloscope displays both the channel traffic (via the if input) and the radar pulses on its display. For in service monitoring tests the analyzer sweep time is set to > 20 seconds and the oscilloscope is configured with a data record length of 10 seconds for the short duration and frequency hopping waveforms, 20 seconds for the long duration waveforms. Both instruments are set for a single acquisition sequence. The analyzer is triggered 500ms before the start of the waveform and the oscilloscope is triggered directly by the modulating pulse train. Timing measurements for aggregate channel transmission time and channel move time are made from the oscilloscope data, with the end of the waveform clearly identified by the pulse train on one trace. The analyzer trace data is used to confirm that the last transmission occurred within the 10-second record of the oscilloscope. If necessary the record length of the oscilloscope is expanded to capture the last transmission on the channel prior to the channel move. Channel availability check time timing plots are made using the analyzer. The analyzer is triggered at start of the EUT’s channel availability check and used to verify that the EUT does not transmit when radar is applied during the check time. The analyzer detector and oscilloscope sampling mode is set to peak detect for all plots. Figure 2 SA Noise Floor During Testing (radar shown at 520 ms) File: R105539 Rev 1 Page 15 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 RADAR GENERATOR PLOTS The radar generator was connected to Spectrum Analyzer (SA) input, with the SA set to zero span, 3 MHz RBW, 3 MHz VBW. The SA IF output was connected to an oscilloscope to provide timing plots. Figure 3 FCC Type 1 Radar (18 pulses) File: R105539 Rev 1 Page 16 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Figure 4 FCC Type 2 Radar (24 pulses) File: R105539 Rev 1 Page 17 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Figure 5 FCC Type 3 Radar (17 pulses) File: R105539 Rev 1 Page 18 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Figure 6 FCC Type 4 Radar (16 pulses) File: R105539 Rev 1 Page 19 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Figure 7 FCC Type 5 Radar (burst with three pulses, 1650 µs first period) The shape is round due to chirped frequency during pulse as the SA is in zero span with 3 MHz BW. File: R105539 Rev 1 Page 20 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Figure 8 FCC Type 6 Radar (9 pulses in each burst) File: R105539 Rev 1 Page 21 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 DFS MEASUREMENT METHODS DFS – CHANNEL CLOSING TRANSMISSION TIME AND CHANNEL MOVE TIME Channel clearing and closing times are measured by applying a burst of radar with the device configured to change channel and by observing the channel for transmissions. The time between the end of the applied radar waveform and the final transmission on the channel is the channel move time. The aggregate transmission closing time is measured using the following way: FCC/MSIP Notice No. 2015-95 – the total time of all individual transmissions from the EUT that are observed starting 200ms at the end of the last radar pulse in the waveform. This value is required to be less than 60ms. DFS – CHANNEL NON-OCCUPANCY AND VERIFICATION OF PASSIVE SCANNING The channel that was in use prior to radar detection by the master is additionally monitored for 30 minutes to ensure no transmissions on the vacated channel over the required non-occupancy period. This is achieved by tuning the spectrum analyzer to the vacated channel in zero-span mode and connecting the IF output to an oscilloscope. The oscilloscope is triggered by the radar pulse and set to provide a single sweep (in peak detect mode) that lasts for at least 30 minutes after the end of the channel move time. For devices with a client-mode that are being evaluated against FCC rules the manufacturer must supply an attestation letter stating that the client device does not employ any active scanning techniques (i.e. does not transmit in the DFS bands without authorization from a Master device). File: R105539 Rev 1 Page 22 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Appendix A Test Equipment Calibration Data Manufacturer Description Model # Asset # Cal Due EMC Spectrum Analyzer, 9 kHz - 6.5 Hewlett Packard 8595EM 787 01-Sep-17 GHz DFS ETS Lindgren Antenna, Horn, 1-18 GHz 3117 1662 13-Jun-18 Tektronix 500MHz, 2CH, 5GS/s OscilloScope TDS5052B 2118 07-Dec-17 EMCO Antenna, Horn, 1-18 GHz 3115 2733 06-Dec-18 Agilent PSG, Vector Signal Generator, E8267D 3011 25-Feb-18 Technologies (250kHz - 20GHz) File: R105539 Rev 1 Page 23 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Appendix B Test Data Tables for Radar Detection Probability The plot below shows the channel loading during testing as evaluated over a 0.4 second period. The traffic was generated by iperf. Figure 9 Channel Utilization during In-Service Detection Measurements (20MHz mode) File: R105539 Rev 1 Page 24 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Appendix C Test Data Tables and Plots for Channel Closing FCC PART 15 SUBPART E Channel Closing Measurements Table 5 - FCC Part 15 Subpart E Channel Closing Test Results Channel Closing Channel Move Waveform Type Transmission Time 1 Time Result Measured Limit Measured Limit Radar Type 0 0 ms 60 ms 0.1 s 10 s Pass Figure 10 Channel Closing Time and Channel Move Time (20MHz mode) – 40 second plot 1 Channel closing time for FCC measurements is the aggregate transmission time starting from 200ms after the end of the radar signal to the completion of the channel move. File: R105539 Rev 1 Page 25 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 Figure 11 Close-Up of Transmissions Occurring More Than 200ms After The End of Radar (20MHz mode) File: R105539 Rev 1 Page 26 of 27

NTS Silicon Valley -- EMC Department Test Report Report Date: August 14, 2017 Revised: August 25, 2017 End of Report This page is intentionally blank and marks the last page of this test report. File: R105539 Rev 1 Page 27 of 27


Document Created: 2017-08-25 16:27:02
Document Modified: 2017-08-25 16:27:02
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