Test Report DFS

FCC ID: PD9533ANM

Test Report

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FCCID_963638

TEST REPORT R70987 Covering the DYNAMIC FREQUENCY SELECTION (DFS) REQUIREMENTS OF FCC Part 15 Subpart E (UNII) Intel Corporation Model(s): 533AN_MMW MANUFACTURER: Intel Corporation 2111 N.E. 25th Avenue Hillsboro, OR 97124-5961 TEST SITE: Elliott Laboratories, Inc. 684 W. Maude Ave Sunnyvale, CA 94085 ORIGINAL REPORT DATE: April 1, 2008 LAST REVISION DATE: May 19, 2008 FINAL TEST DATE: April 1,2008 MEHRAN BIRGANI: Mehran Birgani AUTHORIZED SIGNATORY: ______________________________ Wayne Fisher EMC Team Lead Testing Cert #2016-01 Elliott Laboratories, Inc. is accredited by the A2LA, certificate number 2016-01, to perform the test(s) listed in this report. This report shall not be reproduced, except in its entirety, without the written approval of Elliott Laboratories, Inc. File: R70987 Rev. 4 Page 1 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 REVISION HISTORY Rev # Date Comments Modified By 1 March 27, 2008 Initial Release David Guidotti 2 April 9, 2008 Changed 30 minute non-occupancy plots, changed model to Wayne Fisher 533AN_MMW since this was the model tested 3 April 28, 2008 Modified the wording beneath the 30-minute non-occupancy Mark Briggs plots (Figure 6 and Figure 7) to clarify the period of the single sweep. Modified the plots to show the time scale of the graphs (time scale in ms). 4 May 19, 2008 Inserted Report number onto the cover sheet. Mark Briggs Changed name of Intel contact in the “Scope” section of the report to Robert Paxman. Removed antenna data sheet from the Appendices as the device does not support radar detection and the information is not relevant. File: R70987 Rev. 4 Page 2 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 TABLE OF CONTENTS COVER PAGE.............................................................................................................................................................1 REVISION HISTORY................................................................................................................................................2 TABLE OF CONTENTS ............................................................................................................................................3 LIST OF TABLES.......................................................................................................................................................4 LIST OF FIGURES.....................................................................................................................................................4 SCOPE..........................................................................................................................................................................5 OBJECTIVE ................................................................................................................................................................5 STATEMENT OF COMPLIANCE...........................................................................................................................5 DEVIATIONS FROM THE STANDARD ................................................................................................................5 EQUIPMENT UNDER TEST (EUT) DETAILS......................................................................................................6 GENERAL................................................................................................................................................................6 ENCLOSURE...........................................................................................................................................................6 MODIFICATIONS...................................................................................................................................................7 SUPPORT EQUIPMENT.........................................................................................................................................7 EUT INTERFACE PORTS ......................................................................................................................................7 EUT OPERATION...................................................................................................................................................7 TEST RESULTS..........................................................................................................................................................8 TEST RESULTS SUMMARY – FCC PART 15, CLIENT DEVICE ......................................................................8 MEASUREMENT UNCERTAINTIES....................................................................................................................8 DFS TEST METHODS ...............................................................................................................................................9 RADIATED TEST METHOD .................................................................................................................................9 DFS MEASUREMENT INSTRUMENTATION....................................................................................................11 RADAR GENERATION SYSTEM.......................................................................................................................11 CHANNEL MONITORING SYSTEM..................................................................................................................12 DFS MEASUREMENT METHODS .......................................................................................................................13 DFS – CHANNEL CLOSING TRANSMISSION TIME AND CHANNEL MOVE TIME .................................13 DFS – CHANNEL NON-OCCUPANCY AND VERIFICATION OF PASSIVE SCANNING ...........................13 DFS CHANNEL AVAILABILITY CHECK TIME ..............................................................................................14 TRANSMIT POWER CONTROL (TPC) ..............................................................................................................14 SAMPLE CALCULATIONS ...................................................................................................................................14 DETECTION PROBABILITY / SUCCESS RATE...............................................................................................14 THRESHOLD LEVEL ...........................................................................................................................................14 APPENDIX A TEST EQUIPMENT CALIBRATION DATA ..............................................................................15 APPENDIX B TEST DATA TABLES AND PLOTS FOR CHANNEL CLOSING ...........................................16 FCC PART 15 SUBPART E CHANNEL CLOSING MEASUREMENTS .................................................................16 APPENDIX C ANTENNA SPECIFICATION SHEET..........................ERROR! BOOKMARK NOT DEFINED. APPENDIX D TEST CONFIGURATION PHOTOGRAPHS..............................................................................23 File: R70987 Rev. 4 Page 3 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 LIST OF TABLES Table 1 FCC Part 15 Subpart E Client Device Test Result Summary...........................................8 Table 2 FCC Part 15 Subpart E Channel Closing Test Results ...................................................16 LIST OF FIGURES Figure 1 Test Configuration for radiated Measurement Method...................................................9 Figure 2 Channel Closing Time and Channel Move Time – 40 second plot...............................17 Figure 3 Close-Up of Transmissions Occurring More Than 200ms After The End of Radar.....18 Figure 4 Channel Closing Time and Channel Move Time – 40 second plot...............................19 Figure 5 Close-Up of Transmissions Occurring More Than 200ms After The End of Radar.....20 Figure 6 – Non Occupancy following channel close ...................................................................21 Figure 7 Confirmation of Passive Scanning For Client Devices (Non-associated Test).............22 File: R70987 Rev. 4 Page 4 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 SCOPE The Federal Communications publishes standards regarding ElectroMagnetic Compatibility and Radio spectrum Matters for radio-communications devices. Tests have been performed on the Intel Corporation model 533AN_MMW in accordance with these standards. 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 Tests were performed in accordance with these standards together with the current published versions of the basic standards referenced therein as outlined in Elliott Laboratories test procedures. The test results recorded herein are based on a single type test of the Intel Corporation model 533AN_MMW and therefore apply only to the tested sample. The sample was selected and prepared by Marissa Faustino of Intel Corporation. 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 Intel Corporation model 533AN_MMW complied with the DFS requirements of: FCC Part 15.407(h)(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: R70987 Rev. 4 Page 5 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 EQUIPMENT UNDER TEST (EUT) DETAILS GENERAL The Intel Corporation model 533AN_MMW is a mini PCI Express 802.11 a/b/g/draft N v. 2.0 board that is designed to enable wireless data transmission in PCs. Since the EUT would be placed on a tabletop during operation, the EUT was treated as tabletop equipment during testing to simulate the end-user environment. The electrical rating of the EUT is 3.3 Vdc from the host. The sample was received on April 1, 2008 and tested on April 1, 2008. The EUT consisted of the following component(s): Manufacturer Model Description Serial Number Intel Corporation 533AN_MMW mini PCI Express 0016EA03AAF6 802.11 a/b/g/draft N v. 2.0 board The manufacturer declared values for the EUT operational characteristics that affect DFS are as follows: Operating Modes (5250 – 5350 MHz, 5470 – 5725 MHz) Master Device Client Device (no In Service Monitoring, no Ad-Hoc mode) Client Device with In-Service Monitoring Antenna Gains / EIRP (5250 – 5350 MHz, 5470 – 5725 MHz) 5250 – 5350 MHz 5470 – 5725 MHz Lowest Antenna Gain (dBi) 5dBi 5dBi Highest Antenna Gain (dBi) 5dBi 5dBi Output Power (dBm) 14dBm 16.5dBm Power can exceed 200mW eirp Channel Protocol IP Based Frame Based OTHER _____________________ ENCLOSURE The EUT has no enclosure and has been designed for installation within the enclosure of a host computer. File: R70987 Rev. 4 Page 6 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 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. SUPPORT EQUIPMENT The following equipment was used as local support equipment for testing: Manufacturer Model Description Serial Number FCC ID Cisco Systems Aironet 1250AG Series Access Point FTX1209906V LDK102061 Dell Vostro 1710 Laptop Prototype DoC Computer (Host) 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) None EUT OPERATION The EUT was operating with the following software. The software is secured by binary encryption to prevent the user from disabling the DFS function. Client Device: 12.0.0.56 During the channel moving tests the system was configured with a streaming video file from the master device (sourced by a server connected to the master device via an Ethernet interface) to the laptop. The streamed file was the “FCC” test file and the laptop was using Windows Media Player Classic as required by FCC Part 15 Subpart E to provide the channel loading. File: R70987 Rev. 4 Page 7 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 TEST RESULTS TEST RESULTS SUMMARY – FCC Part 15, CLIENT DEVICE Table 1 FCC Part 15 Subpart E Client Device Test Result Summary Radar Radar Measured Description Requirement Test Data Status Type Frequency Value Channel closing 5260 Type 1 0.86ms 260ms Appendix B Complies transmission time (n 20MHz) Channel closing 5300 Type 1 1.42ms 260ms Appendix B Complies transmission time (n 40MHz) Channel move 5260 Type 1 0.42s 10s Appendix B Complies time (n 20MHz) Channel move 5300 Type 1 0.52s 10s Appendix B Complies time (n 40MHz) Non-occupancy period - Type 1 0 > 30 minutes Appendix B Complies associated Non-occupancy No Passive period – not N/A N/A transmissions Appendix B Complies Scanning associated observed Notes: 1) Tests were performed using the radiated test method. 2) Channel availability check, detection threshold and non-occupancy period are not applicable to client devices. 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: R70987 Rev. 4 Page 8 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 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. Anechoic Chamber Master Device Radar ~3m Antenna Monitoring Antenna Traffic Monitoring Radar Generation System System Figure 1 Test Configuration for radiated Measurement Method File: R70987 Rev. 4 Page 9 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 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 G (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. The combination of master and slave devices is located in an anechoic chamber. The simulated radar waveform is coupled into the unit performing the radar detection (radar detection device, RDD) via couplers and attenuators. File: R70987 Rev. 4 Page 10 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 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 Elliott 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. 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 CW signal with the AGC function switched on. Correction factors to account for the fact that pulses are generated with the AGC functions switched off are measured annually and an offset is used to account for this in the software. The generator output is connected to the coupling port of the conducted set-up or to the radar-generating antenna. File: R70987 Rev. 4 Page 11 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 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. File: R70987 Rev. 4 Page 12 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 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 in one of two ways: FCC – 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 allowing the analyzer to perform multiple sweeps over a 30-minute period in a max hold mode to capture any transmissions on the channel. For devices with a client-mode that are being evaluated against FCC rules the complete spectrum of operation requiring DFS is monitored for a period of 30 minutes with the master device switched off to verify 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). This is achieved by allowing the analyzer to perform multiple sweeps over a 30-minute period in a max hold mode to capture any transmissions in the DFS bands. File: R70987 Rev. 4 Page 13 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 DFS CHANNEL AVAILABILITY CHECK TIME It is preferred that the EUT report when it starts the radar channel availability check. In this case a single burst of one radar type is applied within the first 2 seconds of the start of the channel availability check and it is verified that the device does not use the channel. The test is repeated by applying a radar burst in the last 2 seconds (i.e. between 58 and 60 seconds after the start of CAC) of the channel availability check. If the EUT does not report the start of the check time, then the time to start transmitting on a channel after switching the device on is measured to approximate the time from power-on to the end of the channel availability check. The start of the channel availability check is assumed to be 60 seconds prior to the first transmission on the channel. TRANSMIT POWER CONTROL (TPC) Compliance with the transmit power control requirements for devices is demonstrated through measurements showing multiple power levels and manufacturer statements explaining how the power control is implemented. SAMPLE CALCULATIONS DETECTION PROBABILITY / SUCCESS RATE The detection probability, or success rate, for any one radar waveform equals the number of successful trials divided by the total number of trials for that waveform. THRESHOLD LEVEL The threshold level is the level of the simulated radar waveform at the EUT’s antenna. If the test is performed in a conducted fashion then the level at the rf input equals the level at the antenna plus the gain of the antenna assembly, in dBi. The gain of the antenna assembly equals the gain of the antenna minus the loss of the cabling between the rf input and the antenna. The lowest gain value for all antenna assemblies intended for use with the device is used when making this calculation. If the test is performed using the radiated method then the threshold level is the level at the antenna. File: R70987 Rev. 4 Page 14 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 Appendix A Test Equipment Calibration Data Manufacturer Description Model # Asset # Cal Due Hewlett Packard Spectrum Analyzer 8595EM 780 09-Oct-08 Tektronix Digital Oscilloscope TDS 5104 1435 26-Apr-08 Agilent PSG Vector Signal Generator E8267C 1877 23-Jan-08 Technologies EMCO 1-18GHz Horn Antenna 3115 868 24-Apr-08 ETS Lindgren 1-18GHz Horn Antenna 3117 1662 21-Mar-08 File: R70987 Rev. 4 Page 15 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 Appendix B Test Data Tables and Plots for Channel Closing FCC PART 15 SUBPART E Channel Closing Measurements Table 2 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 1 (802.11n 20MHz) 0.86ms 60ms 0.42s 10s Pass Radar Type 1 (802.11n 40MHz) 1.42ms 60ms 0.52s 10s Pass After the final channel closing test the channel was monitored for a further 30 minutes. No transmissions occurred on the channel. 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: R70987 Rev. 4 Page 16 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 Figure 2 Channel Closing Time and Channel Move Time – 40 second plot File: R70987 Rev. 4 Page 17 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 Figure 3 Close-Up of Transmissions Occurring More Than 200ms After The End of Radar File: R70987 Rev. 4 Page 18 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 Figure 4 Channel Closing Time and Channel Move Time – 40 second plot File: R70987 Rev. 4 Page 19 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 Figure 5 Close-Up of Transmissions Occurring More Than 200ms After The End of Radar File: R70987 Rev. 4 Page 20 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 Time (ms) Figure 6 Non Occupancy Following Channel Close The non-occupancy plot was made over a 2000-second (33.3 minute) time period that included the channel move period plus a minimum of 30 minutes thereafter. The plot was made with the analyzer tuned to the vacated channel and the IF output connected to the scope. No transmissions were observed in the 30+ minutes following the channel move. File: R70987 Rev. 4 Page 21 of 23

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: April 1, 2008 Revised: May 19, 2008 Time (ms) Figure 7 Confirmation of Passive Scanning For Client Devices (Non-associated Test) The plot used to verify passive scanning in the non-associated non-occupancy test was made over a 2000-second (33.3 minute) time period with the analyzer IF output connected to the scope and tuned to the vacated channel to confirm that there were no transmissions from the Client device with the Master device powered off. No transmissions were observed. File: R70987 Rev. 4 Page 22 of 23

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Document Created: 2008-05-27 10:13:23
Document Modified: 2008-05-27 10:13:23
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