EC1905030F01_R01_wifi_DFS

FCC ID: 2ATJUCENTRO-8M

Test Report

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FCCID_4340478

& ECLOLUH FCC RF Test Report For DEMOPAD SOFTWARE LIMITED Test Standards: PART 15 SUBPART E §15. 407 Product Description: Control and automation Tested Model: Centro—8M Additional Model No.: N/A Brand Name: DEMOPAD FCC ID: 2ATJUCENTRO—8M Classification (NI)Unlicensed National Information Infrastructure Report No.: EC1905030F01 Tested Date: 2019—05—10 to 2019—05—20 Issued Date: 2019—05—20 J$ ; [ /////bj '_}/C{/IK‘IY Prepared By: Tiny Yang/ Engineer Approved By: $ oo Ma Bacon Wu / hF Manager Hunan Ecloud Testing Technology Co., Ltd. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Liuyang Economic and Technological Development Zone, Hunan, P.R.C Tel.: +86—731—89634887 Fax.: +86—731—89634887 www .hn—ecloud.com Note: The test results in this report apply exclusively to the tested model / sample. Without written approval of Hunan Ecloud Testing Technology Co., Ltd., the test report shall not be reproduced except in full.

Report No.: EC1905030F01 Report Revise Record Report Version Revise Time Issued Date Valid Version Notes V1.0 / 2019.05.20 Valid Original Report Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 2 of 25

Report No.: EC1905030F01 TABLE OF CONTENTS 1 TEST LABORATORY ................................................................................................................................. 5 1.1 Test facility ......................................................................................................................................... 5 2 GENERAL DESCRIPTION .......................................................................................................................... 6 2.1 Applicant ............................................................................................................................................ 6 2.2 Manufacturer...................................................................................................................................... 6 2.3 General Description Of EUT .............................................................................................................. 6 2.4 Modification of EUT ........................................................................................................................... 7 2.5 Applicable Standards ......................................................................................................................... 7 3 TEST CONFIGURATION OF EQUIPMENT UNDER TEST........................................................................ 8 3.1 Carrier Frequency and Channel ........................................................................................................ 8 3.2 Test Mode .......................................................................................................................................... 9 3.3 Support Equipment ............................................................................................................................ 9 3.4 Test tool software version .................................................................................................................. 9 3.5 Test Setup ....................................................................................................................................... 10 3.6 DFS Detection Thresholds for Master Devices and Client Devices with Radar Detection ............. 11 4 REQUIREMENTS AND PARAMETERS FOR DFS TEST........................................................................ 12 4.1 Applicability of DFS Requirements .................................................................................................. 12 4.2 DFS Response requirement values................................................................................................. 14 4.3 Short Pulse Radar Test Waveforms ................................................................................................ 15 4.4 Long Pulse Radar Test Waveform .................................................................................................. 16 4.5 Frequency Hopping Radar Test Waveform ..................................................................................... 16 5 CALIBRATION SETUP AND DFS TEST RESULTS ................................................................................ 17 5.1 Calibration of Radar Waveform ....................................................................................................... 17 5.2 In-Service Monitoring: Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Period ................................................................................................................. 19 6 LIST OF MEASURING EQUIPMENT........................................................................................................ 24 APPENDIX A. SETUP PHOTOGRAPHS Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 3 of 25

Report No.: EC1905030F01 Summary of Dynamic Frequency Selection Test Bandwidth UNII and Description Measured Limit Result Channel Channel Move 2.121 s 10 sec Pass Time 80MHz <200ms + 200 ms + Channel Closing (CH58) 46 ms aggregate of 60 ms over Pass Transmission time 5290MHz (aggregate) remaining 10 s period Non-Occupancy No transmission UNII Band 2-A Period and Client or Beacons 30 minutes Pass 5250-5350MHz Beacon Test occurred & UNII Band 2-C Channel Move 2.121 s 10 sec Pass 5470-5725MHz Time 80MHz <200ms + 200 ms + Channel Closing (CH106) 30 ms aggregate of 60 ms over Pass Transmission time 5530MHz (aggregate) remaining 10 s period Non-Occupancy No transmission Period and Client or Beacons 30 minutes Pass Beacon Test occurred Note: Since the product is client without radar detection function, only Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Period Test are required to be performed. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 4 of 25

Report No.: EC1905030F01 1 Test Laboratory 1.1 Test facility CNAS ( accreditation number: L11138 ) Hunan Ecloud Testing Technology Co., Ltd. has obtained the accreditation of China National Accreditation Service for Conformity Assessment (CNAS). FCC (Designation number: CN1244 , Test Firm Registration Number: 793308 ) Hunan Ecloud Testing Technology Co., Ltd. has been listed on the US Federal Communications Commission list of test facilities recognized to perform electromagnetic emissions measurements. ISED(CAB identifier: CN0012) Hunan Ecloud Testing Technology Co., Ltd. has been listed on the Wireless Device Testing Laboratories list of innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements. A2LA (Certificate Code : 4895.01 ) Hunan Ecloud Testing Technology Co., Ltd. has been listed by American Association for Laboratory Accreditation to perform electromagnetic emission measurement. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 5 of 25

Report No.: EC1905030F01 2 General Description 2.1 Applicant DEMOPAD SOFTWARE LIMITED INFOLAB21 BAILRIGG ROAD LANCASTER LA1 4WA UNITED KINGDOM 2.2 Manufacturer DEMOPAD SOFTWARE LIMITED INFOLAB21 BAILRIGG ROAD LANCASTER LA1 4WA UNITED KINGDOM 2.3 General Description Of EUT Product Control and automation Model No. Centro-8M Additional No. N/A Difference Description N/A FCC ID 2ATJUCENTRO-8M HW Version 2.0 SW Version 2.6.5 Power Supply 5Vdc (adapter or host equipment) Modulation Technology 256QAM,64QAM, 16QAM, QPSK, BPSK for OFDM Modulation Type 802.11a/n/ac : OFDM U-NII-1:5150~5250MHz Operating Frequency U-NII-2A:5250~5350MHz U-NII-2C:5470~5725MHz Antenna Type Integral Antenna with 0dBi gain I/O Ports Refer to user’s manual Cable Supplied USB cable: Unshielded, detachable, 1.0m NOTE: 1. The EUT was powered by the following adapters: Adapter Brand: DYS Model: DYS152-050200W-K Input: AC 100-240V, 50/60HZ, 0.45A MAX Output: DC 5V, 2.0A DC Line: 1.15m, unshield, undetachable Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 6 of 25

Report No.: EC1905030F01 2. For a more detailed features description, please refer to the manufacturer’s specifications or the user's manual. 3. For the test results, the EUT had been tested with all conditions. But only the worst case was shown in test report. 2.4 Modification of EUT No modifications are made to the EUT during all test items. 2.5 Applicable Standards According to the specifications of the manufacturer, the EUT must comply with the requirements of the following standards:  FCC Part 15 Subpart E §15.407  FCC KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02  FCC KDB 905462 D03 UNII Clients Without Radar Detection New Rules v01r02 Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 7 of 25

Report No.: EC1905030F01 3 Test Configuration of Equipment Under Test 3.1 Carrier Frequency and Channel U-NII-1 CHANNEL FREQUENCY CHANNEL FREQUENCY 36 5180 MHz 44 5220 MHz 38 5190 MHz 46 5230 MHz 40 5200 MHz 48 5240 MHz 42 5210 MHz U-NII-2A CHANNEL FREQUENCY CHANNEL FREQUENCY 52 5260 MHz 60 5300 MHz 54 5270 MHz 62 5310 MHz 56 5280 MHz 64 5320 MHz 58 5290 MHz U-NII-2C CHANNEL FREQUENCY CHANNEL FREQUENCY 100 5500 MHz 112 5560 MHz 102 5510 MHz 116 5580 MHz 104 5520 MHz 132 5660 MHz 106 5530 MHz 134 5670 MHz 108 5540 MHz 136 5680 MHz 110 5550 MHz 140 5700 MHz TDWR CHANNEL FREQUENCY CHANNEL FREQUENCY 118 5590 MHz 124 5620 MHz 120 5600 MHz 126 5630 MHz 122 5610 MHz 128 5640 MHz Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 8 of 25

Report No.: EC1905030F01 3.2 Test Mode Additional requirements for Master Device or Client with Client Without Radar devices with multiple Radar Detection Detection bandwidth modes U-NII Detection Bandwidth and All BW modes must be tested Not required Statistical Performance Check Channel Move Time and Channel Test using widest BW mode Test using the widest BW mode Closing Transmission Time available 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. 3.3 Support Equipment Model Item Equipment Trade Name FCC ID Data Cable Power Cord Name Unshielded, 1.8 1. WLAN AP Motorola MX1200YZ 2AF5PMX1200 N/A m shielded cable DC O/P 1.8 m 2. Notebook Lenovo E540 FCC DoC N/A unshielded AC I/P cable1.2 m 3.4 Test tool software version Item Trade Name Model Name FW Version 1. KEY-SIGHT N7607B Signal Studio 3.0.0.0 Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 9 of 25

Report No.: EC1905030F01 3.5 Test Setup Master Modes Client Modes Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 10 of 25

& ECLOL Report No.: EC1905030FO01 3.6 DFS Detection Thresholds for Master Devices and Client Devices with Radar Detection Maximum Transmit Power Value (See Notes 1, 2, and 3) EIRP >z 200 milliwatt —64 dBm EIRP < 200 milliwatt and power spectral density < 10 —62 dBm dBm/MHz EIRP < 200 milliwatt that do not meet the power —64 dBm spectral density 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. The radar Detection Threshold, lowest antenna gain is the parameter of Interference radar DFS detection threshold, The Interference Detection Threshold is the ( —62dBm) + (0) [dBil+ 1 dB= —61 dBm. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86—731—89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86—731—89634887 FCC ID : 2ATJUCENTRO—8M www.hn—ecloud.com Page 11 of 25

Report No.: EC1905030F01 4 Requirements and Parameters for DFS Test 4.1 Applicability of DFS Requirements EUT is client and operates as client without radar detection function. Table 1: Applicability of DFS Requirements Prior to Use of a Channel Operational Mode Client Requirement Client With Master Without Radar 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 2: Applicability of DFS requirements during normal operation Operational Mode Client Client Requirement Master Without Radar With Radar Detection Detection DFS Detection Threshold Yes Not required Yes Channel Closing Transmission Time Yes Yes Yes Channel Move Time Yes Yes Yes U-NII Detection Bandwidth Yes Not required Yes Client Beacon Test N/A Yes Yes Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 12 of 25

Report No.: EC1905030F01 Operational Mode Additional requirements for devices Master or Client with multiple bandwidth modes Client With Without Radar Detection Radar Detection U-NII Detection Bandwidth and All BW modes Not required Statistical Performance Check must be tested Test using the widest Channel Move Time and Channel Test using widest BW mode BW mode available Closing Transmission Time available for the link All other tests Any single BW mode Not required Note Frequencies selected for statistical performance check 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. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 13 of 25

Report No.: EC1905030F01 4.2 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 100% of the 99% 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 transmission. 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 Channel changes (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 is used and for each frequency step the minimum percentage of detection is 90%. Measurements are performed with no data traffic. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 14 of 25

Report No.: EC1905030F01 4.3 Short Pulse Radar Test Waveforms As the EUT is a Client Device with no Radar Detection, only one type radar pulse is required for the testing. Radar Pulse type 0 was used in the evaluation of the Client device for the purpose of measuring the Channel Move Time and the Channel Closing Transmission Time. Minimum Pulse Radar Percentage of Minimum Width PRI (µsec) Number of Pulses Type Successful Trials (µsec) Detection 0 1 1428 18 60% 30 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. Test A: 15 unique PRI values randomly selected from the list of 23 PRI values in Table 5a Test B: 15 unique PRI values randomly selected within the range of 518-3066 μsec, with a minimum increment of 1 μsec, excluding PRI values selected in Test A A minimum of 30 unique waveforms are required for each of the short pulse radar types 2 through 4. For short pulse radar type 1, the same waveform is used a minimum of 30 times. 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 Type 1, then each additional waveform is generated with Test B and must also be unique and not repeated from the previous waveforms in Tests A or B. The aggregate is the average of the percentage of successful detections of short pulse radar types 1-4. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 15 of 25

Report No.: EC1905030F01 4.4 Long Pulse Radar Test Waveform Radar Pulse Chirp PRI (µsec) Number of Number of Minimum Minimum Type Width Width Pulses per Bursts Percentage Number of (µsec) (MHz) Burst of Trials Successful Detection 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 Type waveforms. If more than 30 waveforms are used for the Long Pulse Radar Type waveforms, then each additional waveform must also be unique and not repeated from the previous waveforms. 4.5 Frequency Hopping Radar Test Waveform Radar Pulse PRI (µsec) Pulses Hopping Hopping Minimum Minimum Type Width per Rate (kHz) Sequence Percentage Number of (µsec) Hop Length of Trials (msec) Successful Detection 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 from 5250 – 5724 MHz. 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 a random frequency, the frequencies remaining within the group are always treated as equally likely. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 16 of 25

Report No.: EC1905030F01 5 Calibration Setup and DFS Test Results 5.1 Calibration of Radar Waveform 5.1.1 Radar Waveform Calibration Procedure The Interference Radar Detection Threshold Level is (-62dBm) + (0) [dBi]+ 1 dB= -61dBm that had been taken into account the output power range and antenna gain. The following equipment setup was used to calibrate the radiated Radar Waveform. A vector signal generator was utilized to establish the test signal level for radar type 0. During this process there were no transmissions by either the Master or Client Device. The spectrum analyzer was switched to the zero span (Time Domain) at the frequency of the Radar Waveform generator. Peak detection was used. The spectrum analyzer resolution bandwidth (RBW) and video bandwidth (VBW) were set to 3 MHz to measure the type 0 radar waveform. The spectrum analyzer had offset -5.82dB to compensate receiving horn antenna gain 10.32dBi and RF cable loss 4.5dB. The vector signal generator amplitude was set so that the power level measured at the spectrum analyzer was (-62dBm) + (0) [dBi]+ 1 dB= -61 dBm. Capture the spectrum analyzer plots on short pulse radar waveform. 5.1.2 Radar Waveform Calibration Result <80MHz / 5290 MHz> Radar Type 0 Radar / DFS detection threshold level and the burst of pulses on the Channel frequency Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 17 of 25

Report No.: EC1905030F01 <80MHz / 5530 MHz> Radar Type 0 Radar / DFS detection threshold level and the burst of pulses on the Channel frequency Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 18 of 25

Report No.: EC1905030F01 5.2 In-Service Monitoring: Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Period 5.2.1 Limit of In-Service Monitoring The EUT has In-Service Monitoring function to continuously monitor the radar signals, If radar is detected, it must leave the channel (Shutdown). The Channel Move Time to cease all transmissions on the current Channel upon detection of a Radar Waveform above the DFS Detection Threshold within 10 sec. The total duration of 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 Channel changes (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. Non-Occupancy Period time is 30 minute during which a Channel will not be utilized after a Radar Waveform is detected on that Channel. The non-associated Client Beacon Test is during the 30 minutes observation time. The EUT should not make any transmissions in the DFS band after EUT power up. 5.2.2 Test Procedures 1. The radar pulse generator is setup to provide a pulse at frequency that the Master and Client are operating. A type 0 radar pulse with a 1us pulse width and a 1428 us PRI is used for the testing. 2. The vector signal generator is adjusted to provide the radar burst (18 pulses) at a level of approximately -62dBm at the antenna of the Master device. 3. A trigger is provided from the pulse generator to the DFS monitoring system in order to capture the traffic and the occurrence of the radar pulse. 4. A U-NII device operating as a Client Device will associate with the Master at Channel. The MPEG file “TestFile.mpg” specified by the FCC is streamed from the “file computer” through the Master to the Client Device and played in full motion video using Media Player Classic Ver. 6.4.8.6 in order to properly load the network for the entire period of the test. 5. 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. At time T0 the Radar Waveform generator sends a Burst of pulse of the radar waveform at Detection Threshold + 1dB. 6. 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 12 seconds plot is reported for the Short Pulse Radar Types 1. 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 zoom in 600ms plot of the Short Pulse Radar Type. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 19 of 25

Report No.: EC1905030F01 7. Measurement of the aggregate duration of the Channel Closing Transmission Time method. With the spectrum analyzer set to zero span tuned to the center frequency of the EUT operating channel at the radar simulated frequency, peak detection, and max hold, the dwell time per bin is given by: Dwell (0.4ms)= S (12000ms) / B (30000); where Dwell is the dwell time per spectrum analyzer sampling bin, S is the sweep time and B is the number of spectrum analyzer sampling bins. An upper bound of the aggregate duration of the intermittent control signals of Channel Closing Transmission Time is calculated by: C (ms)= N X Dwell (0.4 ms); where C is the Closing Time, N is the number of spectrum analyzer sampling bins (intermittent control signals) showing a U-NII transmission and Dwell is the dwell time per bin. Measure the EUT for more than 30 minutes following the channel move time to verify that no transmissions or beacons occur on this Channel. 5.2.3 Result of Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Period for Client Beacon Test Test Mode : Client without radar detection Temperature : 26.3℃ Test Engineer : Victorique Gao Relative Humidity : 47% BW / Channel Test Item Test Result Limit Pass/Fail Channel Move Time 2.121 s ＜ 10s Pass 200ms + 80MHz / 5290 MHz Channel Closing Transmission Time ＜ 260ms Pass 0.046 s Non-Occupancy Period ≥ 30 min ≥ 30 min Pass Channel Move Time 2.121 s ＜ 10s Pass 200ms + 80MHz / 5530 MHz Channel Closing Transmission Time ＜ 260ms Pass 0.03 s Non-Occupancy Period ≥ 30 min ≥ 30 min Pass Note: 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 seconds period. The aggregate duration of control signals will not count quiet periods in between transmissions. Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 20 of 25

Report No.: EC1905030F01 5.2.4 Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Period for Client Beacon Test Plots <80MHz / 5290 MHz> In-Service Monitoring Channel Move Time & Channel Closing Transmission Time Non-Occupancy Period Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 21 of 25

Report No.: EC1905030F01 <80MHz / 5530 MHz> In-Service Monitoring Channel Move Time & Channel Closing Transmission Time Non-Occupancy Period Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 22 of 25

Report No.: EC1905030F01 5.2.5 Data Traffic Plots EUT data traffic (5290MHz) EUT data traffic (5530MHz) Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 23 of 25

Report No.: EC1905030F01 6 List of Measuring Equipment Calibration Instrument Manufacturer Model No. Serial No. Due Date Remark Date Spectrum Keysight N9010A MY56070788 2019-01-23 2020-01-22 Conducted Analyzer Signal Generator Keysight N5182B MY56200384 2019-04-19 2020-04-18 Conducted (Interferer) Signal Generator Keysight N5171B MY56200661 2019-01-23 2020-01-22 Conducted (Blocker) Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 24 of 25

Report No.: EC1905030F01 Appendix A. Setup Photographs --------------------------------------------------------End of the report-------------------------------------------------------- Building A1, Changsha E Center, No. 18 Xiangtai Avenue, Tel.:+86-731-89634887 Liuyang Economic and Technological Development Zone, Hunan, P.R.C Fax.: +86-731-89634887 FCC ID : 2ATJUCENTRO-8M www.hn-ecloud.com Page 25 of 25


Document Created: 2019-07-01 01:28:45
Document Modified: 2019-07-01 01:28:45
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