Test Report DFS

FCC ID: 2ADBM-LS9ADAC11DBT

Test Report

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FCCID_3586974

Shenzhen Zhongjian Nanfang Testing Co., Ltd. Report No: CCISE170709605 1 Cover Page DFS TEST REPORT Applicant: Libre Wireless Technologies Inc. Address of Applicant: R2100 Geng Road, Suite 210 Palo Alto, CA 94303, USA Equipment Under Test (EUT) Product Name: WiFi Media Streaming Module Model No.: LS9AD-AC11DBT, LS9AD-AC11DBT-V, LS9AD-AC11DBT-GV Trade mark: FCC ID: 2ADBM-LS9ADAC11DBT Date of Test: FCC CFR Title 47 Part 15 Subpart E Section 15.407 Date of report issued: 01 Jul., 2017 Test Result: 01 Jul., to 11 Jul., 2017 *In the configuration tested, the EUT complied with the standards specified above. Authorized Signature: Bruce Zhang Laboratory Manager This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product and does not permit the use of the CCIS product certification mark. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. This report may only be reproduced and distributed in full. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.

Report No: CCISE17079605 2 Version Version No. Date Description 00 11 Jul., 2017 Original Tested by: Date: 11 Jul., 2017 Test Engineer Reviewed by: Date: 11 Jul., 2017 Project Engineer Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 2 of 20

Report No: CCISE17079605 3 Contents Page 1 COVER PAGE ....................................................................................................................................................... 1 2 VERSION ............................................................................................................................................................... 2 3 CONTENTS ........................................................................................................................................................... 3 4 TEST SUMMARY .................................................................................................................................................. 4 5 GENERAL INFORMATION .................................................................................................................................. 5 5.1 CLIENT INFORMATION ........................................................................................................................................... 5 5.2 GENERAL DESCRIPTION OF E.U.T. ...................................................................................................................... 5 5.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................................ 6 5.4 LABORATORY FACILITY ........................................................................................................................................ 6 5.5 LABORATORY LOCATION ...................................................................................................................................... 6 5.6 TEST INSTRUMENTS LIST....................................................................................................................................... 6 5.7 TEST ENVIRONMENT.............................................................................................................................................. 6 6 DFS TECHNICAL REQUIREMENTS .................................................................................................................. 7 6.1 DFS PARAMETERS ............................................................................................................................................... 7 6.2 DFS TECHNICAL REQUIREMENTS ........................................................................................................................ 9 6.3 DFS THRESHOLD LEVEL ...................................................................................................................................... 9 6.4 TEST SETUP BLOCK.............................................................................................................................................. 9 6.5 EUT CONFIGURATION FOR DFS TEST ............................................................................................................... 10 7 TEST RESULT .................................................................................................................................................... 11 7.1 VERIFICATION OF RADAR TYPE AND LEVEL ....................................................................................................... 11 7.2 CHANNEL MOVE TIME AND CHANNEL CLOSING TRANSMISSION TIME .............................................................. 18 7.3 NON-OCCUPANCY PERIOD ................................................................................................................................. 19 8 EUT CONSTRUCTIONAL DETAILS ................................................................................................................ 20 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 3 of 20

w Report No: CCISE17079605 4 Test Summary Test Items Limit Result Channel Availability Check > 60 seconds N/A UNI! Detection Bandwidth > 100% of the UNII 99% transmission power bandwidth N/A Radar type 1,2,3,4 2 60% Aggregate Radar type 1~4 and N/A Statistical Performance Check 5280% Radar type 6 270% Channel Move Time < 10 seconds Pass Channel Closing Transmission Time <20ms * gggregate of 60m§ over Pass remaining 10 second period Non—Occupancy Period > 30 minutes Pass Note: "Pass" means meet the requirements, "N/A" means not applicable Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B—C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bac‘an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 4 of 20

Report No: CCISE17079605 5 General Information 5.1 Client Information Applicant: Libre Wireless Technologies Inc. Address: R2100 Geng Road, Suite 210 Palo Alto, CA 94303, USA Manufacturer Shenzhen Zowee Technology Co., Ltd. Address: NO.5 Zowee technology building, Science & Technology industrial park of privately owned enterprises, Pingshan, Xili, Nanshan district, Shenzhen Factory: Shenzhen Zowee Technology Co., Ltd. Address: No 149, Tongfuyu Industrial Zone Songgang, Baoan District Shenzhen Guangdong 518105 China 5.2 General Description of E.U.T. Product Name: WiFi Media Streaming Module Model No.: LS9AD-AC11DBT, LS9AD-AC11DBT-V, LS9AD-AC11DBT-GV Transmitter frequency range: 5150MHz~5250MHz, 5250MHz~5350MHz, 5470MHz~5725MHz Modulation type: OFDM WLAN Function: 802.11a/802.11n/802.11ac Bandwidth: 20MHz/40MHz/80MHz Antenna Type: Internal Antenna Antenna Gain: 5.9 dBi Master Device DFS Operation Type: Slaver Device with Radar detection function Slaver Device without Radar detection function Power supply: DC 3.3V The No.: LS9AD-AC11DBT, LS9AD-AC11DBT-V, LS9AD-AC11DBT- GV were identical inside, the electrical circuit design, layout, components used and internal wiring, with only difference being model name, DDR3, Flash for different customer LS9AD-AC11DBT: this is the standard LS9AD, and this is the variant used for testing at the BTL laboratory. Memory Configuration - 256MB Flash/ 256MB DDR3. LS9AD-AC11DBT-V: this variant is the same as the standard except Remark: for the memory configuration. Memory Configuration - 256MB Flash / 512MB DDR3. LS9AD-AC11DBT-V with different shield design. LS9AD-AC11DBT-GV: this variant is the same as the standard except for the memory configuration. Memory Configuration - 512MB Flash / 512MB DDR3. Base on the differences description, We chose LS9AD-AC11DB model No. as the main test, Conducted Emission and Spurious Emission was re-tested for LS9AD-AC11DBT-V and LS9AD-AC11DBT-GV. Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 5 of 20

w Report No: CCISE17079605 5.3 Description of Support Units Manufacturer Description Model Serial Number LENOVO Laptop SL510 2847A65 WAVLINK WiFi Router WL—WNS75A2 WL1512260097 5.4 Laboratory Facility The test facility is recognized, certified, or accredited by the following organizations: @FCC — Registration No.: 817957 Shenzhen Zhongjian Nanfang Testing Co., Ltd. EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in out files. Registration 817957, February 27, 2012. @1C — Registration No.: 10106A—1 The 3m Semi—anechoic chamber of Shenzhen Zhongijian Nanfang Testing Co., Ltd. has been Registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 10106A—1. ©CNAS — Registration No.: CNAS L6048 Shenzhen Zhongjian Nanfang Testing Co., Ltd. is accredited to ISO/EC 17025:2005 General Requirements for the Competence of Testing and Calibration laboratories for the competence of testing. The Registration No. is CNAS L6048. 5.5 Laboratory Location Shenzhen Zhongjian Nanfang Testing Co., Ltd. Address: No. B—C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bac‘an District, Shenzhen, Guangdong, China Tel: +86—755—23118282, Fax: +86—755—23116366 Email: info@ccis—cb.com, Website: http://www.ccis—cb.com 5.6 Test Instruments list est Equipment Test Equipme anufacture Manufacturer lodel N No. Model erial N No. Serial date(mm—dd—yy) Cal. Due Spectrum Analyser Agilent N9020A MY50510123 10—23—2017 Vector Signal Generator Agilent N5182A MY49060014 10—23—2017 RF Switch Unit Ascentest AT890—RFB —— —— DFS Test Software Ascentest AT890 —— —— N7607B Signal Studio KEYSIGHT —— Version 2.0.0.1 —— 5.7 Test Environment Temperature: 20 ~ 25 °C Humidity: 60% ~65% Atmospheric pressure: 1012 kPa Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B—C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bac‘an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 6 of 20

CCGIS Report No: CCISE17079605 6 DFS Technical Requirements 6.1 DFS Parameters Table D.1: Applicability of DFS Requirements Prior to Use of a Channel Operational Mode Requirement Master Client Without Radar Client With 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 D.2: Applicability of DFS requirements during normal operation Operational Mode Requirement Master Client Without 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 Operational Mode Master Device or Client with Client Without Radar with multiple bandwidth modes Radar Detection Detection U—NII Detection Bandwidth and Not required Statistical Performance Check All BW modes must be tested Channel Move Time and Channel Test using widest BW mode Test using the widest BW Closing Transmission Time available mode available for the link All other tests Any single BW mode Not required Note: Frequencies selected for statistical performance check (Section 7.8.4) 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 D.3: DFS Detection Thresholds Maximum Transmit Power Value (See Notes 1,2, and 3) EIRP = 200 mW —64 dBm EIRP < 200 mW and power spectral density < 10 dBm/MHz —62 dBm EIRP < 200 mW 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 DO1. Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B—C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bac‘an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 7 of 20

Report No: CCISE17079605 Table D.4: DFS requirement values Parameter Value Non-occupancy period Minimum 30 minutes Channel Availability Check Time 60 seconds Channel Move Time 10 seconds (See Note 1) 200 ms + an aggregate of 60ms over remaining Channel Closing Transmission Time 10 second period (See Notes 1 and 2) Minimum 100% of the UNII 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 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 D.5: Short Pulse Radar Test Waveforms Minimum Minimum Radar Type Pulse Width PRI Number of Pulses Percentage of Number of (μsec) (μsec) Successful Trials Detection 0 1 1428 18 See Note 1 See Note 1 Test A 1 1 60% 30 Test B 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 D.6: Long Pulse Radar Test Waveform Pulse Chirp Number of Minimum Minimum Radar Width Width PRI Pulses per Number Percentage of Number of Type (μsec) (MHz) (μsec) Burst of Bursts Successful Trials Detection 1000- 5 50-100 5-20 1-3 8-20 80% 30 2000 Long Pulse Radar Test Signal Wave form 12 second transmission Table D.7: Frequency Hopping Radar Test Waveform Pulse Hopping Hopping Minimum Minimum Radar Width PRI Pulses Rate Sequence Percentage of Number of Type (μsec) (μsec) per Hop (kHz) Length Successful Trials (msec) Detection 6 1 333 0 0.333 300 70% 30 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 8 of 20

Report No: CCISE17079605 6.2 DFS Technical Requirements DFS Operational mode Requirement Slave without Slave with Radar Master Radar Detection Detection Channel Availability Check √ Not Required Not Required UNII Detection Bandwidth √ Not Required √ Statistical Performance Check √ Not Required √ Channel Move Time √ √ √ Channel Closing Transmission √ √ √ Time Non-Occupancy Period √ √ √ 6.3 DFS Threshold Level DFS Threshold Level 5250MHz ~ 5350MHz -62 dBm @ antenna connector 5470MHz ~ 5725MHz -62 dBm @ antenna connector Note: The worst case level was selected to perform the test. 6.4 Test Setup Block For master device For Slaver without radar detection function device Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 9 of 20

Report No: CCISE17079605 For Slaver with radar detection function device 6.5 EUT Configuration for DFS Test Test Items Channel Frequency Channel Move Time 5290MHz, 5530MHz Channel Closing Transmission Time 5290MHz, 5530MHz Non-Occupancy Period 5290MHz, 5530MHz Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 10 of 20

Report No: CCISE17079605 7 Test Result 7.1 Verification of Radar Type and Level 80MHz/5290MHz Radar Type 0 Radar Type 1 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 11 of 20

Report No: CCISE17079605 Radar Type 2 Radar Type 3 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 12 of 20

Report No: CCISE17079605 Radar Type 4 Radar Type 5 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 13 of 20

Report No: CCISE17079605 Radar Type 6 80MHz@5530MHz Radar Type 0 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 14 of 20

Report No: CCISE17079605 Radar Type 1 Radar Type 2 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 15 of 20

Report No: CCISE17079605 Radar Type 3 Radar Type 4 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 16 of 20

Report No: CCISE17079605 Radar Type 5 Radar Type 6 Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 17 of 20

Report No: CCISE17079605 7.2 Channel Move Time and Channel Closing Transmission Time 80MHz/5290MHz Test Items Value Limit Channel Closing Transmission Time 8.4 ms 260 ms Channel Move Time 456 ms 10 s 80MHz/5530MHz Test Items Value Limit Channel Closing Transmission Time 4.8 ms 260 ms Channel Move Time 392 ms 10 s Test Result: Pass Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 18 of 20

Report No: CCISE17079605 7.3 Non-Occupancy Period 80MHz/5290MHz Test Items Value Limit Non-Occupancy Period 1820 s 30 minutes (1800 s) 80MHz/5530MHz Non-Occupancy Period 1820 s 30 minutes (1800 s) Test Result: Pass Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 19 of 20

Report No: CCISE17079605 8 EUT Constructional Details Reference to the test report No. CCISE170709601 ------ End of report ------ Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1707096 No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road, Bao’an District, Shenzhen, Guangdong, China Telephone: +86 (0) 755 23118282 Fax: +86 (0) 755 23116366 Page 20 of 20


Document Created: 2017-09-28 18:47:04
Document Modified: 2017-09-28 18:47:04
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