Test Report (DFS).pdf

FCC ID: KA2WA171B1

Test Report

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FCCID_2034967

DFS TEST REPORT REPORT NO.: RF130614E11-2 MODEL NO.: DWA-171 FCC ID: KA2WA171B1 RECEIVED: June 14, 2013 TESTED: July 09, 2013 ISSUED: July 29, 2013 APPLICANT: D-Link Corporation ADDRESS: No.289, Sinhu 3rd Rd., Neihu District, Taipei City 114, Taiwan, R.O.C ISSUED BY: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Hsin Chu Laboratory LAB ADDRESS : No. 81-1, Lu Liao Keng, 9th Ling, Wu Lung Tsuen, Chiung Lin Hsiang, Hsin Chu Hsien 307, Taiwan, R.O.C. This report should not be used by the client to claim product certification, approval, or endorsement by TAF or any government agencies. This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification Report No.: RF130614E11-2 1 of 26 Report Format Version 5.2.0

Table of Contents RELEASE CONTROL RECORD ........................................................................................ 3 1. CERTIFICATION .................................................................................................... 4 2. EUT INFORMATION ............................................................................................... 5 2.1 OPERATING FREQUENCY BANDS AND MODE OF EUT..................................... 5 2.2 EUT SOFTWARE AND FIRMWARE VERSION ...................................................... 5 2.3 DESCRIPTION OF AVAILABLE ANTENNAS TO THE EUT .................................... 5 2.4 EUT MAXIMUM CONDUCTED POWER ................................................................ 6 2.5 EUT MAXIMUM EIRP POWER............................................................................... 7 2.6 TRANSMIT POWER CONTROL (TPC) .................................................................. 8 2.7 STATEMENT OF MAUNFACTURER ...................................................................... 8 3. U-NII DFS RULE REQUIREMENTS ....................................................................... 9 3.1 WORKING MODES AND REQUIRED TEST ITEMS .............................................. 9 3.2 TEST LIMITS AND RADAR SIGNAL PARAMETERS ........................................... 10 4. TEST & SUPPORT EQUIPMENT LIST................................................................. 13 4.1 TEST INSTRUMENTS .......................................................................................... 13 4.2 DESCRIPTION OF SUPPORT UNITS.................................................................. 13 5. TEST PROCEDURE............................................................................................. 14 5.1 BVADT DFS MEASUREMENT SYSTEM: ............................................................. 14 5.2 CALIBRATION OF DFS DETECTION THRESHOLD LEVEL: ............................... 15 5.3 DEVIATION FROM TEST STANDARD ................................................................. 16 5.4 CONDUCTED TEST SETUP CONFIGURATION .................................................. 16 5.4.1 CLIENT WITHOUT RADAR DETECTION MODE ................................................. 16 6. TEST RESULTS ................................................................................................... 17 6.1 SUMMARY OF TEST RESULTS .......................................................................... 17 6.2 DETAILED TEST RESULTS ................................................................................. 18 6.2.1 TEST MODE: DEVICE OPERATING IN CLIENT WITHOUT RADAR DETECTION MODE................................................................................................................... 18 6.2.1.1 DFS DETECTION THRESHOLD .......................................................................... 18 6.2.1.2 CHANNEL CLOSING TRANSMISSION AND CHANNEL MOVE TIME ................. 19 6.2.1.3 NON- OCCUPANCY PERIOD .............................................................................. 20 6.2.1.4 NON-ASSOCIATED TEST.................................................................................... 22 6.2.1.5 NON- CO-CHANNEL TEST .................................................................................. 22 7. INFORMATION ON THE TESTING LABORATORIES .......................................... 23 8. APPENDIX-A ........................................................................................................ 24 9. APPENDIX B - MODIFICATIONS RECORDERS FOR ENGINEERING CHANGES TO THE EUT BY THE LAB ................................................................................... 26 Report No.: RF130614E11-2 2 of 26 Report Format Version 5.2.0

RELEASE CONTROL RECORD ISSUE NO. REASON FOR CHANGE DATE ISSUED RF130614E11-2 Original release July 29, 2013 Report No.: RF130614E11-2 3 of 26 Report Format Version 5.2.0

1. CERTIFICATION PRODUCT: Wireless AC Dual Band USB Adapter BRAND NAME : D-Link MODEL NO.: DWA-171 TEST SAMPLE: R&D SAMPLE APPLICANT: D-Link Corporation TESTED: July 09, 2013 STANDARDS: FCC Part 15, Subpart E (Section 15.407) FCC 06-96 The above equipment (Model: DWA-171) has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and was in compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s EMC characteristics under the conditions specified in this report. PREPARED BY : , DATE: July 29, 2013 ( Midoli Peng, Specialist ) APPROVED BY : , DATE: July 29, 2013 ( May Chen, Manager ) Report No.: RF130614E11-2 4 of 26 Report Format Version 5.2.0

2. EUT INFORMATION 2.1 OPERATING FREQUENCY BANDS AND MODE OF EUT TABLE 1: OPERATING FREQUENCY BANDS AND MODE OF EUT OPERATING FREQUENCY RANGE OPERATIONAL MODE 5470~5725MHz 5250~5350MHz (Disable 5600 ~ 5650MHz) Client without radar detection and ü ü ad hoc function 2.2 EUT SOFTWARE AND FIRMWARE VERSION TABLE 2: THE EUT SOFTWARE/FIRMWARE VERSION SOFTWARE/FIRMWARE PLATFORM NO. PRODUCT MODEL NO. VERSION Ralink Wireless AC Dual Windows 7 1 DWA-171 2013/06/5 Band USB Adapter (5.1.3.1015) 2.3 DESCRIPTION OF AVAILABLE ANTENNAS TO THE EUT TABLE 3: ANTENNA LIST Frequency range Antenna Type Connector Antenna Gain (dB) (MHz to MHz) Loop NA 1.33 5250~5350 Loop NA 1.97 5470~5725 Report No.: RF130614E11-2 5 of 26 Report Format Version 5.2.0

2.4 EUT MAXIMUM CONDUCTED POWER IEEE 802.11a MAX. POWER FREQUENCY ANT SET. BAND (MHz) OUTPUT OUTPUT POWER(dBm) POWER(mW) 1 5250~5350 13.69 23.388 1 5470~5725 14.68 29.376 IEEE 802.11n HT20 MAX. POWER FREQUENCY ANT SET. BAND (MHz) OUTPUT OUTPUT POWER(dBm) POWER(mW) 1 5250~5350 11.68 14.723 1 5470~5725 14.53 28.379 IEEE 802.11n HT40 MAX. POWER FREQUENCY ANT SET. BAND (MHz) OUTPUT OUTPUT POWER(dBm) POWER(mW) 1 5250~5350 10.74 11.858 1 5470~5725 14.52 28.314 Report No.: RF130614E11-2 6 of 26 Report Format Version 5.2.0

2.5 EUT MAXIMUM EIRP POWER IEEE 802.11a MAX. POWER FREQUENCY ANT SET. BAND (MHz) OUTPUT OUTPUT POWER(dBm) POWER(mW) 1 5250~5350 15.02 31.769 1 5470~5725 16.65 46.238 IEEE 802.11n HT20 MAX. POWER FREQUENCY ANT SET. BAND (MHz) OUTPUT OUTPUT POWER(dBm) POWER(mW) 1 5250~5350 13.01 19.999 1 5470~5725 16.5 44.668 IEEE 802.11n HT40 MAX. POWER FREQUENCY ANT SET. BAND (MHz) OUTPUT OUTPUT POWER(dBm) POWER(mW) 1 5250~5350 12.07 16.106 1 5470~5725 16.49 44.566 Report No.: RF130614E11-2 7 of 26 Report Format Version 5.2.0

2.6 TRANSMIT POWER CONTROL (TPC) U-NII devices operating in the 5.25-5.35 GHz band and the 5.47-5.725 GHz band shall employ a TPC mechanism. The U-NII device is required to have the capability to operate at least 6 dB below the mean EIRP value of 30 dBm. A TPC mechanism is not required for systems with an EIRP of less than 500 mW. Maximum EIRP of this device is 46.238 mW which less than 500mW, therefore it’s not require TPC function. 2.7 STATEMENT OF MAUNFACTURER This device (Client) is without radar detection, then the manufacturer statement confirming that information regarding the parameters of the detected Radar Waveforms is not available to the end user. And the device doesn’t have Ad Hoc mode on DFS frequency band. Report No.: RF130614E11-2 8 of 26 Report Format Version 5.2.0

3. U-NII DFS RULE REQUIREMENTS 3.1 WORKING MODES AND REQUIRED TEST ITEMS The manufacturer shall state whether the UUT is capable of operating as a Master and/or a Client. If the UUT is capable of operating in more than one operating mode then each operating mode shall be tested separately. See tables 1 and 2 for the applicability of DFS requirements for each of the operational modes. TABLE 6: APPLICABILITY OF DFS REQUIREMENTS PRIOR TO USE A CHANNEL OPERATIONAL MODE REQUIREMENT CLIENT WITHOUT CLIENT WITH MASTER RADAR RADAR DETECTION DETECTION Non-Occupancy Period ü ü ü DFS Detection Threshold ü Not required ü Channel Availability Check Time ü Not required Not required Uniform Spreading ü Not required Not required U-NII Detection Bandwidth ü Not required ü TABLE 7: APPLICABILITY OF DFS REQUIREMENTS DURING NORMAL OPERATION OPERATIONAL MODE REQUIREMENT CLIENT WITHOUT CLIENT WITH MASTER RADAR RADAR DETECTION DETECTION DFS Detection Threshold ü Not required ü Channel Closing Transmission Time ü ü ü Channel Move Time ü ü ü U-NII Detection Bandwidth ü Not required ü Report No.: RF130614E11-2 9 of 26 Report Format Version 5.2.0

3.2 TEST LIMITS AND RADAR SIGNAL PARAMETERS DETECTION THRESHOLD VALUES TABLE 8: DFS DETECTION THRESHOLDS FOR MASTER DEVICES AND CLIENT DEVICES WITH RADAR DETECTION MAXIMUM TRANSMIT POWER VALUE (SEE Note 1 and 2) ≥ 200 milliwatt -64 dBm < 200 milliwatt -62 dBm 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. Report No.: RF130614E11-2 10 of 26 Report Format Version 5.2.0

TABLE 9: DFS RESPONSE REQUIREMENT VALUES PARAMETER VALUE Non-occupancy period Minimum 30 minutes Channel Availability Check Time 60 seconds Channel Move Time 10 seconds See Note 1. Channel Closing Transmission Time 200 milliseconds + an aggregate of 60 milliseconds over remaining 10 second period. See Notes 1 and 2. U-NII Detection Bandwidth Minimum 80% of the UNII 99% transmission power bandwidth. See Note 3. Note 1: The instant that the Channel Move Time and the Channel Closing Transmission Time begins is as follows: • For the Short Pulse Radar Test Signals this instant is the end of the Burst. • For the Frequency Hopping radar Test Signal, this instant is the end of the last radar Burst generated. • For the Long Pulse Radar Test Signal this instant is the end of the 12 second period defining the Radar Waveform. 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 transmissions. Note 3: During the U-NII Detection Bandwidth detection test, radar type 1 is used and for each frequency step the minimum percentage of detection is 90 percent. Measurements are performed with no data traffic. Report No.: RF130614E11-2 11 of 26 Report Format Version 5.2.0

PARAMETERS OF DFS TEST SIGNALS 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. TABLE 10: SHORT PULSE RADAR TEST WAVEFORMS MINIMUM PULSE PERCENTAGE MINIMUM WIDTH NUMBER OF RADAR TYPE PRI (µsec) OF NUMBER OF PULSES (µsec) SUCCESSFUL TRIALS DETECTION 1 1 1428 18 60% 30 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 TABLE 11: LONG PULSE RADAR TEST WAVEFORM CHIRP MINIMUM PULSE PRI NUMBER MINIMUM RADAR NUMBER PERCENTAGE OF WIDTH WIDTH OF PULSES NUMBER OF TYPE (µsec) OF BURSTS SUCCESSFUL (µsec) (MHz) PER BURST TRIALS DETECTION 5 50-100 5-20 1000-2000 1-3 8-20 80% 30 TABLE 12: FREQUENCY HOPPING RADAR TEST WAVEFORM PULSE HOPPING HOPPING MINIMUM MINIMUM RADAR PRI PULSES RATE SEQUENCE PERCENTAGE OF WIDTH NUMBER OF TYPE (µsec) PER HOP LENGTH SUCCESSFUL (µsec) (kHz) TRIALS (msec) DETECTION 6 1 333 9 0.333 300 70% 30 Report No.: RF130614E11-2 12 of 26 Report Format Version 5.2.0

4. TEST & SUPPORT EQUIPMENT LIST 4.1 TEST INSTRUMENTS TABLE 1: TEST INSTRUMENTS LIST. DESCRIPTION & CALIBRATED CALIBRATED MODEL NO. BRAND MANUFACTURER DATE UNTIL R&S Spectrum analyzer FSP40 R&S Jan. 21, 2013 Jan. 20, 2014 Signal generator 8645A Agilent Aug. 24, 2012 Aug. 23, 2013 4.2 DESCRIPTION OF SUPPORT UNITS TABLE 2: SUPPORT UNIT INFORMATION. NO. PRODUCT BRAND MODEL NO. ID SPEC. The maximum EIRP is 13.6 1 11n Access-Point MOTOROLA AP-7131N UZ7AP7131N dBm, Antenna Gain is -3.38dBi NOTE: This device was functioned as a Master Slave device during the DFS test. TABLE 3: SOFTWARE/FIRMWARE INFORMATION. SOFTWARE/FIRMWARE NO. PRODUCT MODEL NO. VERSION 1. 11n Access-Point AP-7131N 4.0.0.0-036D Report No.: RF130614E11-2 13 of 26 Report Format Version 5.2.0

5. TEST PROCEDURE 5.1 BVADT DFS MEASUREMENT SYSTEM: A complete BVADT DFS Measurement System consists of two subsystems: (1) the Radar Signal Generating Subsystem and (2) the Traffic Monitoring Subsystem. The control PC is necessary for generating the Radar waveforms in Table 6, 7 and 8. The traffic monitoring subsystem is specified to the type of unit under test (UUT). CONDUCTED SETUP CONFIGURATION OF ADT DFS MEASUREMENT SYSTEM Radar Signal Generating Control PC Subsystem Spectrum Analyzer Attenuator C/S Attenuator Attenuator C/S Traffic Monitoring Subsystem Support Unit Master / Client with DFS function The test transmission will always be from the Master Device to the Client Device. While the Client device is set up to associate with the Master device and play the MPEG file (6 y Magic Hours) from Master device, the designated MPEG test file and instructions are located at: http://ntiacsd.ntia.doc.gov/dfs/. Report No.: RF130614E11-2 14 of 26 Report Format Version 5.2.0

5.2 CALIBRATION OF DFS DETECTION THRESHOLD LEVEL: The measured channel is 5500 MHz in 20MHz Bandwidth and 5510MHz in 40MHz Bandwidth. The radar signal was the same as transmitted channels, and injected into the antenna port of AP (master) or Client Device with Radar Detection, measured the channel closing transmission time and channel move time. The Master antenna gain is -3.38dBi and required detection threshold is -64.38dBm (= -62 +1 -3.38)dBm. The calibrated conducted detection threshold level is set to -64.38 dBm. CONDUCTED SETUP CONFIGURATION OF CALIBRATION OF DFS DETECTION THRESHOLD LEVEL Control PC Spectrum Radar Signal Generating Analyzer Subsystem 50Ω Load (Terminator) Attenuator C/S 50Ω Load Attenuator C/S Attenuator (Terminator) Report No.: RF130614E11-2 15 of 26 Report Format Version 5.2.0

5.3 DEVIATION FROM TEST STANDARD No deviation. 5.4 CONDUCTED TEST SETUP CONFIGURATION 5.4.1 CLIENT WITHOUT RADAR DETECTION MODE Control PC Spectrum Radar Signal Generating Analyzer Subsystem Attenuator C/S C/S Master Attenuator Attenuator Client (UUT) Notebook Notebook The UUT is a U-NII Device operating in Client mode without radar detection. The radar test signals are injected into the Master Device. Report No.: RF130614E11-2 16 of 26 Report Format Version 5.2.0

6. TEST RESULTS 6.1 SUMMARY OF TEST RESULTS CLAUSE TEST PARAMETER REMARKS PASS/FAIL 15.407 DFS Detection Threshold Not Applicable NA 15.407 Channel Availability Check Time Not Applicable NA 15.407 Channel Move Time Applicable Pass 15.407 Channel Closing Transmission Time Applicable Pass 15.407 Non- Occupancy Period Applicable Pass 15.407 Uniform Spreading Not Applicable NA 15.407 U-NII Detection Bandwidth Not Applicable NA 15.407 Non-associated test Applicable Pass 15.407 Non-Co-Channel test Applicable Pass Report No.: RF130614E11-2 17 of 26 Report Format Version 5.2.0

6.2 DETAILED TEST RESULTS 6.2.1 TEST MODE: DEVICE OPERATING IN CLIENT WITHOUT RADAR DETECTION MODE. The radar test signals are injected into the Master Device. This test was investigated for different bandwidth (20MHz and 40MHz, except the 80MHz bandwidth, because master is not available.). The following plots was done on 40MHz as a representative 6.2.1.1 DFS DETECTION THRESHOLD The Required detection threshold is -64.38dBm (= -62 +1 -3.38)dBm. The conducted radar burst level is set to -64.38dBm. Radar signal Noise Floor Radar Signal 1 Report No.: RF130614E11-2 18 of 26 Report Format Version 5.2.0

6.2.1.2 CHANNEL CLOSING TRANSMISSION AND CHANNEL MOVE TIME Radar Signal Traffic Signal Noise Floor NOTE: T1 denotes the start of Channel Move Time upon the end of the last Radar burst. T2 denotes the data transmission time of 200ms from T1. T4 denotes the 10 second from T1 to observe the aggregate duration of transmissions. Radar Signal Noise Floor NOTE: An expanded plot for the device vacates the channel in the required 500ms. Report No.: RF130614E11-2 19 of 26 Report Format Version 5.2.0

6.2.1.3 NON- OCCUPANCY PERIOD ASSOCIATED TEST 1) Test results demonstrating an associated client link is established with the master on a test frequency. EUT (Client ) links with master on 5510MHz 2) The client and DFS-certified master device are associated, and the movie can be streamed as specified in the DFS Order for a non-occupancy period test. Client plays a specified files via master. Report No.: RF130614E11-2 20 of 26 Report Format Version 5.2.0

3). The device transmits one type of radar as specified in the DFS Order. Radar 1 is used to test during DFS testing. 4) The test frequency has been 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; 5)An analyzer plot that contains a single 30-minute sweep on the original test frequency. Injected into Radar Noise Floor Traffic Signal Report No.: RF130614E11-2 21 of 26 Report Format Version 5.2.0

6.2.1.4 NON-ASSOCIATED TEST Master was off. During the 30 minutes observation time, The UUT did not make any transmissions in the DFS band after UUT power up. Noise Floor 6.2.1.5 NON- CO-CHANNEL TEST The UUT was investigated after radar was detected the channel and made sure no co-channel operation with radars. Report No.: RF130614E11-2 22 of 26 Report Format Version 5.2.0

7. INFORMATION ON THE TESTING LABORATORIES We, Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, were founded in 1988 to provide our best service in EMC, Radio, Telecom and Safety consultation. Our laboratories are accredited and approved according to ISO/IEC 17025. If you have any comments, please feel free to contact us at the following: Linko EMC/RF Lab: Hsin Chu EMC/RF Lab: Tel: 886-2-26052180 Tel: 886-3-5935343 Fax: 886-2-26052943 Fax: 886-3-5935342 Hwa Ya EMC/RF/Safety/Telecom Lab: Tel: 886-3-3183232 Fax: 886-3-3270892 Email: service.adt@tw.bureauveritas.com Web Site: www.bureauveritas-adt.com The address and road map of all our labs can be found in our web site also. Report No.: RF130614E11-2 23 of 26 Report Format Version 5.2.0

8. APPENDIX-A Notch band in 5600-5650MHz Verify that the 5600 – 5650 MHz band is notched. Test results demonstrating last channel shall not exceed the band edge on 5600~5650MHz. 802.11n (20MHz) OFDM MODULATION 802.11n (20MHz) OFDM MODULATION (CH 116: 5580MHz) (CH 132: 5660MHz) 802.11n (40MHz) OFDM MODULATION 802.11n (40MHz) OFDM MODULATION (CH 110: 5550MHz) (CH 134: 5670MHz) Report No.: RF130614E11-2 24 of 26 Report Format Version 5.2.0

NON BEACON ON DFS BAND 1) Test results demonstrating no any beacon on DFS band after power up. 2) Observation time is 10min after power up. EUT (Client ) links with master on 11n EUT (Client ) links with master on 11n HT20 mode HT40 mode BAND EDGE AT NEARBY DFS BAND 1) Test results demonstrating last channel (20dB BW) shall not exceed the band edge on 5150~5250MHz. EUT (Client ) links with master on 11n EUT (Client ) links with master on 11n HT20 mode HT40 mode Report No.: RF130614E11-2 25 of 26 Report Format Version 5.2.0

9. APPENDIX B - MODIFICATIONS RECORDERS FOR ENGINEERING CHANGES TO THE EUT BY THE LAB No modifications were made to the EUT by the lab during the test. --- END --- Report No.: RF130614E11-2 26 of 26 Report Format Version 5.2.0


Document Created: 2013-08-02 09:46:53
Document Modified: 2013-08-02 09:46:53
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