Funai Electric R & D (Shenzhen) Co., Ltd.
WiFi module
F22028
U9W35-FCC-DFS
Funai Electric R&D; (Shenzhen) Co., Ltd. U9W35 WiFi module 2AU3BU9W35 2AU3BU9W35 u9w35
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Document DEVICE REPORTGetApplicationAttachment.html?id=5789079FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. FCC Dynamic Frequency Selection Test Report for Funai Electric R & D (Shenzhen) Co., Ltd. WiFi module U9W35 FCC ID: 2AU3BU9W35 Prepared for : Funai Electric R & D (Shenzhen) Co., Ltd. B303 Technology Building II, 1057 Nanhai Road, Nanshan District, Shenzhen, China 518067 Prepared By : Audix Technology (Shenzhen) Co., Ltd. No. 6, Kefeng Road, Science & Technology Park, Nanshan District , Shenzhen, Guangdong, China Tel: (0755) 26639496 Report Number : Date of Test : Date of Report : ACS-F22028 Feb.18~Mar.10,2022 Mar.25,2022 Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 1 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION.............................................................................................................. 3 1.SUMMARY OF MEASUREMENTS AND RESULTS ......................................................................... 4 2.GENERAL INFORMATION .................................................................................................................. 5 2.1.Description of Equipment Under Test.............................................................................................. 5 2.2.Description of Device (EUT) ........................................................................................................... 6 2.3.Support Equipment........................................................................................................................... 7 2.4.Test Channel..................................................................................................................................... 7 2.5.Description of Test Facility .............................................................................................................. 8 2.6.Measurement Uncertainty ................................................................................................................ 8 3.TEST EQUIPMENT ................................................................................................................................ 9 4.WORKING MODES AND REQUIREMENT TEST ITEM................................................................. 10 4.1.Applicability of DFS Requirements Prior To Use A Channel ....................................................... 10 4.2.Applicability of DFS Requirements During Normal Operation..................................................... 10 5.DFS DETECTION THRESHOLOS AND RADAR TEST WAVEFORMS ........................................ 11 5.1.Interference Threshold Value, Master or Client Incorporating In-Service Monitoring ................. 11 5.2.Radar Test Waveform Minimum Step ........................................................................................... 11 5.3.Short Pulse Radar Test Waveforms................................................................................................ 12 5.4.Long Pulse Radar Test Waveforms ................................................................................................ 13 5.5.Frequency Hopping Pulse Radar Test Waveforms......................................................................... 15 5.6.Conducted Calibration Setup.......................................................................................................... 17 5.7.Radar Waveform Calibration Procedure ........................................................................................ 17 5.8.Calibration Deviation ..................................................................................................................... 17 5.9.Radar Waveform Calibration Result .............................................................................................. 18 6.TEST SETUP AND TEST RESULT ..................................................................................................... 20 6.1.Test Setup ....................................................................................................................................... 20 6.2.Channel Move Time, Channel Closing Time, Non-Occupancy Period, Channel Availability Check Time, U-NII Detection Bandwidth Measurement .......................................................................................... 22 7.PHOTOGRAPHS OF MEASUREMENT ............................................................................................. 28 7.1.Photographs of Slave Mode............................................................................................................ 28 8.PHOTOS OF THE EUT ........................................................................................................................ 29 Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 2 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. TEST REPORT VERIFICATION Applicant Manufacturer Product Funai Electric R & D (Shenzhen) Co., Ltd. Funai Electric R & D (Shenzhen) Co., Ltd. WiFi module (A) Model No. (B) Test Voltage : U9W35 : DC 5V From PC Input AC 120V/60Hz Measurement Standards Used: FCC RULES AND REGULATIONS PART 15 Subpart E (FCC CFR 47 Part 15E, §15.407) The device described above was tested by Audix Technology (Shenzhen) Co., Ltd. to determine the maximum emission levels emanating from the device. The maximum emission levels were compared to the FCC Part 15 subpart E limits. The measurement results are contained in this test report and Audix Technology (Shenzhen) Co., Ltd. is assumed full responsibility for the accuracy and completeness of these measurements. Also, this report shows that the EUT to be technically compliant with the requirements of FCC Part 15E standards. This report applies to single evaluation of one sample of above mentioned product and shall not be reproduced in part without written approval of Audix Technology (Shenzhen) Co., Ltd. Date of Test : Feb.18~Mar.10,2022 Report of date: Mar.25,2022 Prepared by : Reviewed by : Brave Zhang / Assistant Sunny Lu / Deputy Manager Approved & Authorized Signer : David Jin / Deputy General Manager Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 3 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 1. SUMMARY OF MEASUREMENTS AND RESULTS The EUT has been tested according to the applicable standards as referenced below. Description of Test Item Results DFS Detection Threshold Channel Availability Check Time Channel Move Time Non-Occupancy Period PASS N/A PASS PASS Channel Closing Transmission Time PASS U-NII Detection Bandwidth PASS N/A is an abbreviation for Not Applicable, since the product is client without radar detection function Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 4 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 2. GENERAL INFORMATION 2.1. Description of Equipment Under Test Applicant Funai Electric R & D (Shenzhen) Co., Ltd. Applicant Address B303 Technology Building II, 1057 Nanhai Road, Nanshan District, Shenzhen, China 518067 Manufacturer Funai Electric R & D (Shenzhen) Co., Ltd. Manufacturer Address B303 Technology Building II, 1057 Nanhai Road, Nanshan District, Shenzhen, China 518067 Factory Funai (Thailand) Company Limited Factory Address 835 Moo18, Pakchong-Lumsompung Road, Tambon, Chantuek, Amphur Pakchong, Nakhon Ratchasima 30130, Thailand Product WiFi module Model No. U9W35 FCC ID 2AU3BU9W35 Sample Type Prototype production Date of Receipt Dec.10,2021 Date of Test Feb.18~Mar.10,2022 Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 5 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 2.2. Description of Device (EUT) Product Feature & Specification Product WiFi module Model No. F22028 Radio IEEE802.11 a/b/g/n Commercial Power AC 100~240 V Power Source External Power Source Li-ion Battery DC 5V DC V UM battery DC V 2.4GHz Wi-Fi Support Modes 802.11b/g/n20/n40 Frequency Range 2412-2462MHz Type of Modulation 802.11b(DSSS): CCK, QPSK, BPSK; 802.11g/n(OFDM): 64QAM,16QAM, QPSK, BPSK Data Rate 802.11b: 1/2/5.5/11 Mbps; 802.11g: 6/9/12/18/24/36/48/54 Mbps; 802.11n: up to 300Mbps Channel Separation 5MHz 5GHz Wi-Fi Support Modes 802.11a/n20/n40 Frequency Range 5180-5240MHz, 5260-5320MHz, 5500-5700MHz, 5745-5825MHz Type of Modulation 802.11a/n (OFDM): 64QAM,16QAM, QPSK, BPSK Data Rate 802.11a: 6/9/12/18/24/36/48/54 Mbps; 802.11n: up to 300Mbps Channel Separation 5MHz Antenna System Type of Antenna ANTA: monopole Antenna ANTB: External Metal Antenna Antenna Peak Gain DTS Band (2400-2483.5MHz) Peak Gain: ANTA: -1.04dBi; ANTB: -2.80dBi; U-NII-1 Band(5150-5250MHz) Peak Gain: ANTA: 1.42dBi; ANTB: -4.67dBi; U-NII-2A Band(5250-5350MHz) Peak Gain: ANTA: -4.34dBi; ANTB: -0.16dBi; U-NII-2C Band(5470-5725MHz) Peak Gain: ANTA: -4.03dBi; ANTB: 0.09dBi; U-NII-3 Band (5725-5850MHz) Peak Gain: ANTA: 0.98dBi; ANTB:-4.36dBi Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 6 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 2.3. Support Equipment Item Manufacturer Model Remark AP Server CISCO FCC ID: LDK102073 AIR-AP1262N-A-K9 IC:2461B-102073 AP Server D-Link DIR-815A1 NCC ID: CCAI10LP092AT0 FCC ID: KA2IR815A1 IC: 4216A-IR815A1 2.4. Test Channel Frequency Band 5260-5320MHz (U-NII-2A Band) 5500-5700MHz (U-NII-2C Band) Channel No. 52 54 100 102 Frequency 20MHz 5260MHz 40MHz 5270MHz 20MHz 5500MHz 40MHz 5510MHz Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 7 of 29 FCC ID: 2AU3BU9W35 2.5. Description of Test Facility Site Description Name of Firm EMC Lab. 2.6. Measurement Uncertainty Test Item DFS Time Measurement Threshold AUDIX Technology (Shenzhen) Co., Ltd. : Audix Technology (Shenzhen) Co., Ltd. No. 6, Kefeng Road, Science & Technology Park, Nanshan District, Shenzhen, Guangdong, China : Certificated by ISED, Canada Company Number: 5183A CAB identifier: CN0034 Valid Date: Mar.31, 2022 : Certificated by FCC, USA Designation No.: CN5022 Valid Date: Mar.31, 2022 : Accredited by NVLAP, USA NVLAP Code: 200372-0 Valid Date: Mar.31, 2022 Uncertainty 3.2% 0.50dBm Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 8 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 3. TEST EQUIPMENT Item Equipment Manufacturer Model No. Serial No. Last Cal. 1. Vector Signal Generation Rohde & Schwarz SMU200A 105064 Oct.09,21 2. Signal Analyzer Rohde & Schwarz FSV30 104051 Apr.06,21 3. Attenuator(20d B) N/A 1527 001 Oct.09,21 4. Attenuator(20d B) N/A 1527 002 Oct.09,21 5. Attenuator(10d B) Agilent 8491B MY392692 01 Oct.09,21 6. Power Splitter Marvelous Microwave MVE8576 No.1 Oct.09,21 7. Power Splitter Marvelous Microwave MVE8576 No.2 Oct.09,21 8. Test Software Rohde & Schwarz DFS Analysis Tool 1EF59_1E N/A Cal. Interval 1 Year 1 Year 1 Year 1 Year 1 Year 1 Year 1 Year N/A Calibration unit CCIC CCIC CCIC CCIC CCIC CCIC CCIC N/A Notes: NCR means no calibration required(calibrated with system). Notes: N/A means Not applicable. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 9 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 4. WORKING MODES AND REQUIREMENT TEST ITEM 4.1. Applicability of DFS Requirements Prior To Use A Channel Operational Mode Requirement Master Client without radar Client with radar detection detection Non-Occupancy Period DFS Detection Threshold Not required Channel Availability Check Time Not required Not required U-NII Detection Bandwidth Not required 4.2. Applicability of DFS Requirements During Normal Operation Operational Mode Requirement Master Client without radar Client with radar detection detection DFS Detection Threshold Not required Channel Closing Transmission Time Channel Move Time U-NII Detection Bandwidth Not required Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 10 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 5. DFS DETECTION THRESHOLOS AND RADAR TEST WAVEFORMS 5.1. Interference Threshold Value, Master or Client Incorporating In-Service Monitoring Maximum Transmit Power Value (See Notes 1 and 2) E.I.R.P. 200 milliwatt -64dBm E.I.R.P < 200 milliwatt Power spectral sensity < 10dBm/MHz -62dBm E.I.R.P. < 200 milliwatt that do not meet the power spectral sensity requirement -64dBm 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. The radar Detection Threshold, lowest antenna gain is the parameter of interference radar DFS detection threshold. 5.2. Radar Test Waveform Minimum Step Step intervals of 0.1 microsecond for Pulse Width, 1 microsecond for PRI, 1MHz for chirp width and 1 for the number of pulses will be utilized for the random determination of specific test waveforms. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 11 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 5.3. Short Pulse Radar Test Waveforms Radar Pulse Width Type (µsec) PRI (µsec) Minimum Percentage Minimum Number of Pulse of Successful number of Detection Trials 0 1 1428 18 See Note 1 See Note 1 1 1 Test A: 15 unique PRI values randomly selected from the list 23 PRI values in Table 5a 60% 30 Test B: 15 unique PRI values randomly selected within the range of 518-3066 µsec, with a minimum incement of 1 µsec, excluding PRI values selected in Test A 2 1-5 150-230 23-29 60% 30 3 6-10 200-500 16-18 60% 30 4 11-20 200-500 12-16 60% 30 Aggregate (Radar Types 1-4) 80% 120 Note 1: Short Pulse Radar Type 0 should be used for the detection bandwidth test, channel move time, and channel closing time tests. A minimum of 30 unique waveforms are required for each of the short pulse radar type 2 through 4. If more than 30 waveforms are used for short pulse radar types 2 through 4, then each additional waveform must also be unique and not repeated from the previous waveforms. If more than 30 waveforms are used for short pulse radar types 1, then each additional waveform generated with Test B and must also be unique and not repeated from the previous waveforms in Tests A or B. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 12 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. Used R&S SMU200A (Vector SG with two ARB) B11: Base-band Generator with ARB (16M samples) and Digital Modulation B13: Base-band Main Module B106: frequency range (100 kHz to 6 GHz) For selecting the waveform parameters from within the bounds of the signal type, system was random selection using uniform distribution. 5.4. Long Pulse Radar Test Waveforms Radar Type Pulse Width (µsec) Chirp Width (MHz) PRI (µsec) Number of Pulse Per Burst Number of Bursts Minimum Percentage of Successful Detection Minimum of Trials 5 50-100 5-20 1000-2000 1-3 8-20 80% 30 The parameters for this waveform are randomly chosen. Thirty unique waveforms are required for the Long Pulse radar test signal. If more 30 waveforms are used for the Long Pulse radar test signal, then each additional waveform must also be unique and not repeated from the previous waveforms. Each waveform is defined as following: (1) The transmission period for the Long Pulse Radar test signal is 12 seconds. (2) There are a total of 8 to 20 Bursts in the 12 second period, with the number of Bursts being randomly chosen. This number is Burst_Count. (3) Each Burst consists of 1 to 3 pulses, with the number of pulses being randomly chosen. Each Burst within the 12 second sequence may have a different number of pulses. (4) The pulse width is between 50 and 100 microseconds, with the pulse width being randomly chosen. Each pulse within a Burst will have the some pulse width. Pulses in different Bursts may have different pulse widths. (5) Each pulse has a linear FM chirp between 5 and 20MHz, with the chirp width being randomly chosen. Each pulse within a Burst will have the same chirp width. Pulses in different Burst may have different chirp widths. The chirp is centered on the pulse. For example, with a radar frequency of 5300MHz and a 20MHz chirped signal, the chirp starts at 5290MHz and ends at 5310MHz. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 13 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. (6) If more than one pulse is present in a Burst, the time between the pulses will be between 1000 and 2000 microseconds, with the time being randomly chosen. If three pulses are present in a Burst, the time between the first and second pulses is chosen independently of the time between the second and third pulses. (7) The 12 second transmission period is divided into even intervals. The number of intervals is equal to Burst_Count. Each interval is of length (12000000/Burst_Count) microseconds. Each interval contains one Burst. The start time for the Burst, relative to the beginning of the interval, is between 1 and [(12000000/Burst_Count)-(Total Burst length)+(One Random PRI interval)] microseconds, with the start time being randomly chosen. The step interval for the start time is 1 microsecond. The start time for each Burst is chosen independently. A representative example of a Long Pulse radar test waveform: (1) The total test signal length is 12 seconds. (2) 8 Bursts are randomly generated for the Burst_Count. (3) Burst 1 has 2 randomly generated pulses. (4) The pulse width (for both pulses) is randomly selected to be 75 microseconds. (5) The PRI is randomly selected to be at 1213 microseconds. (6) Bursts 2 through 8 are generated using steps 3-5. (7) Each Burst is contained in even intervals of 1500000 microseconds. The starting location for Pulse 1. Burst 1 is randomly generated (1 to 1500000 minus the total Burst 1 length + 1 random PRI interval) at the 325001 microsecond step. Bursts 2 through 8 randomly fall in successive 1500000 microsecond intervals (i.e. Burst 2 falls in the 1500001-3000000 microsecond range). Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 14 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. Used R&S SMU200A (Vector SG with two ARB) Path A/Path B Two B11: Base-band Generator with ARB (16M samples) and Digital Modulation B13: Base-band Main Module B106: frequency range (100 kHz to 6 GHz) For selecting the waveform parameters from within the bounds of the signal type, system was random selection using uniform distribution. 5.5. Frequency Hopping Pulse Radar Test Waveforms Radar Type Pulse Width (µsec) Hopping Minimum PRI Pulses Per Hopping Rate Sequence Percentage of (µsec) Hop (kHz) Length Successful (ms) Detection Minimum of Trials 6 1 333 9 0.333 300 70% 30 For the Frequency Hopping Radar Type, the same Burst parameters are used for each waveform. The hopping sequence is different for each waveform and a 100-length segment is selected from the hopping sequence defined by the following algorithm: The first frequency in a hopping sequence is selected randomly from the group of 475 integer frequencies form 5250-5274MHz. Next, the frequency that was just chosen is removed from the group and a frequency is randomly selected from the remaining 474 frequencies in the group. This process continues until all 475 frequencies are chosen for the set. For selection of random frequency, the frequencies remaining within the group are always treated as equally likely. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 15 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. Used R&S SMU200A (Vector SG with two ARB) B11: Base-band Generator with ARB (16M samples) and Digital Modulation B13: Base-band Main Module B106: frequency range (100 kHz to 6 GHz) For selecting the waveform parameters from within the bounds of the signal type, system was random selection using uniform distribution. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 16 of 29 FCC ID: 2AU3BU9W35 5.6. Conducted Calibration Setup AUDIX Technology (Shenzhen) Co., Ltd. 5.7. Radar Waveform Calibration Procedure The measured frequency is 5260MHz &5290MHz for U-NII-2A Band, 5500MHz & 5530MHz for U-NII-2C Band. 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 calibrated conducted detection threshold level is set to -62dBm. The tested level is lower than required level hence it provides margin to the limit. 5.8. Calibration Deviation There is no deviation with the original standard. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 17 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 5.9. Radar Waveform Calibration Result DFS detection threshold level and the burst of pulses on the Channel frequency U-NII-2A Band 40MHz Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 18 of 29 FCC ID: 2AU3BU9W35 U-NII-2C Band 40MHz Type 1 AUDIX Technology (Shenzhen) Co., Ltd. Type 2 Type 3 Type 4 Type 5 Type 6 Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 19 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 6. TEST SETUP AND TEST RESULT 6.1. Test Setup 6.1.1. Test Setup Diagram Following is the test setup for generated the radar waveforms and used to monitor UNII device. 6.1.2. Test Setup Operation System testing was performed with the designated test file that streams full motion video from the Access Point to Client in full motion video mode using the media player with the V2.61 Codec package. This file is used by IP and Frame based systems for loading the test channel during the in-service compliance testing of the U-NII device. The waveform parameters from within the bounds of the signal type are selected randomly using uniform distribution. A spectrum analyzer is used as a monitor to verify that the EUT has vacated the Channel within the (Channel Closing Transmission Time and Channel Move Time, and does not transmit on a Channel during the Non-Occupancy Period after the detection and Channel move. It is also used to monitor EUT transmissions during the Channel Availability Check Time. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 20 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 6.1.3. Test Setup for Data Traffic Plot U-NII-2A Band 40MHz U-NII-2C Band 40MHz Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 21 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 6.2. Channel Move Time, Channel Closing Time, Non-Occupancy Period, Channel Availability Check Time, U-NII Detection Bandwidth Measurement 6.2.1. Limit Parameter Value Non-occupancy period Minimum 30 minutes Channel Availability Check Time 60 seconds Channel Move Time 10 seconds See Note 1. 200milliseconds + an aggregate of 60 Channel Closing Transmission Time milliseconds period. See Notes 1 and 2. U-NII Detection Bandwidth Minimum 100% of the U-NII 99% transmission power bandwidth. See Note 3. Note 1: Channel Move Time and 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. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 22 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 6.2.2. Test Procedures 6.2.2.1. When a radar Burst with a level equal to the DFS Detection Threshold + 1dB is generated on the operating channel of the U-NII device. A U-NII device operating as a Client Device will associate with the Master of channel. Stream the MPEG test file from the Master Device to the Client Device on the selected channel for entire period of the test. At time to the radar waveform generator sends a Burst of pulses for each of the radar types at Detection Threshold + 1dB. 6.2.2.2. Observe the transmissions of the EUT at the end of the radar Burst on the Operating channel. Measure and record the transmissions from the EUT during the observation time [Channel Move Time]. One 10 Second plot bee reported for the short Pulse Radar type 1-4 and one for the Long Pulse Radar Type test in a 22 second plot. The plot for the Short Pulse Radar types start at the end of the radar burst. The Channel Move Time will be calculated based on the plot of the short Pulse Radar Type. The Long Pulse Radar Type plot show the device ceased transmissions within the 10 second window after detection has occurred. The plot for the Long Pulse Radar type should start at the beginning of the 12 second waveform. 6.2.2.3. Measure the EUT for more than 30 minutes following the channel close/move time to verify that the EUT does not resume only transmissions on this channel. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 23 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 6.2.3. Test Result Applicability of DFS Requirement During Normal Operation 6.2.3.1. Channel Closing Transmission Time & Channel Move Time (PASS) U-NII-2A Band 40MHz Test DateFeb.18,2022 U-NII-2C Band 40MHz Test DateFeb.18,2022 Channel move time < 10 S Channel move time < 10 S Channel Closing Transmission Time Calculated Sweep Time(S) sec 12 Sweep points (P) 32001 Number of Sweep points in 10 sec (N) 19 Channel Closing Time (C) 7.12ms Channel closing time is calculated from C=N* dwell; where dwell is the occupancy time per sweep point calculated by the formula: dwell=S/P. N is the number of sweep points indicating transmission after S1; where S1 is the radar signal detected. Channel Closing Transmission Time Calculated Sweep Time(S) sec 12 Sweep points (P) 32001 Number of Sweep points in 10 sec (N) 26 Channel Closing Time (C) 9.75ms Channel closing time is calculated from C=N* dwell; where dwell is the occupancy time per sweep point calculated by the formula: dwell=S/P. N is the number of sweep points indicating transmission after S1; where S1 is the radar signal detected. Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 24 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 6.2.3.2. Non-Occupancy period (PASS) U-NII-2A Band 40MHz Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 25 of 29 FCC ID: 2AU3BU9W35 U-NII-2C Band 40MHz Type 1 AUDIX Technology (Shenzhen) Co., Ltd. Type 2 Type 3 Type 4 Type 5 Type 6 Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 26 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 6.2.3.3. U-NII detection bandwidth (PASS) Test Frequency (MHz) 5260 5270 5500 5510 Result (MHz) FL 5251 FH 5269 FL 5250 FH 5290 FL 5491 FH 5509 FL 5490 FH 5530 U-NII Detection Bandwidth (MHz) 18 40 18 40 Limit (MHz) 17.619 36.024 17.591 36.022 Conclusion Pass Pass Pass Pass Pass Pass Pass Pass Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 27 of 29 FCC ID: 2AU3BU9W35 AUDIX Technology (Shenzhen) Co., Ltd. 7. PHOTOGRAPHS OF MEASUREMENT 7.1. Photographs of Slave Mode Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 28 of 29 FCC ID: 2AU3BU9W35 8. PHOTOS OF THE EUT AUDIX Technology (Shenzhen) Co., Ltd. Figure 1 General Appearance of the EUT Figure 2 General Appearance of the EUT WiFi ANT A Figure 3 Inside of the EUT WiFi ANT B port THE END Audix Technology (Shenzhen) Co., ltd.. Report No. ACS-F22028 Page 29 of 29
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