Test Report DFS

FCC ID: BEJLGSBWAC93

Test Report

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FCCID_4269808

Li«CT HCTCO,LTD. 74, Seoicheon—ro 578beon—gil, Majang—myeon, Icheon—si, Gyeonggi—do, 17383, Rep. of KOREA TEL: +82—31—645—6300 FAX: +82—31—645—6401 FCC / IC DFS REPORT Certification Applicant Name: Date of Issue: LG Electronics Inc. April 15, 2019 Location: Address: HCT CO., LTD., 222, LG—ro, Jinwi—myeon, Pyeongtaek—si, Gyeonggi— 74, Seoicheon—ro 578beon—gil, Majang—myeon, do,451—713, Korea Icheon—si, Gyeonggi—do, 17383, Rep. of KOREA Report No.: HCT—RF—1904—FI007 FCC ID: BEJLGSBWAC93 IC: 2703H—LGSBWAC93 APPLICANT: LG Electronics Inc. Model: LGSBWAC93 EUT Type: RF Module Max. RF Output Power: Ant1 Ant2 Ant1+ Ant2 Band Mode Power Power Power (dBm) (dBm) (dBm) 802.11a 10.45 9.24 12.81 802.11n (HT20) 11.90 10.84 14.39 802.11n (HT40) 1211 11.01 14.58 UNIIGA 802.11ac (VHT20) 13.21 12.31 15.76 802.11ac (VHT40) 13.42 19.95 20.48 802.11ac (VHT80) 11.23 9.95 13.63 802.11a 16.18 15.02 18.65 802.11n (HT20) 15.37 14.23 17.81 uniizc 802.11n (HT40) 16.10 14.86 18.53 802.11ac (VHT20) 15.35 14.44 17.89 802.11ac (VHT40) 15.81 14.90 18.39 802.11ac (VHT80) 13.49 13.45 16.47 FCC Classification: Unlicensed National Information Infrastructure (UNII) FCC Rule Part(s): Part 15.407(DFS) Engineering Statement: The measurements shown in this report were made in accordance with the procedures indicated, and the emissions from thisequipment were found to be within the limits applicable. | assume full responsibility for the accuracy and completeness of these measurements, and for the qualifications of all persons taking them. It is further stated that upon the basis of the measurements made, the equipment tested is capable of operation in accordance with the requirements of the FCC / IC Rules under normal use and maintenance. A Report prepared by : Se Wook Park Approved by : Kwon Jeong Engineer of Telecommunication testing center Manager of Telecommunication testing center This report only responds to the tested sample and may not be reproduced, except in full, without written approval of the HCT Co., Ltd. F—TP22—03 (Rev.00) 1 /18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 Version TEST REPORT NO. DATE DESCRIPTION HCT-RF-1904-FI007 April 15, 2019 - First Approval Report F-TP22-03 (Rev.00) ２ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 Table of Contents 1. EUT DESCRIPTION ..................................................................................................................................... ４ 2. SCOPE ......................................................................................................................................................... ５ 3. INSTRUMENT CALIBRATION..................................................................................................................... ５ 4. FACILITIES AND ACCREDITATIONS ......................................................................................................... ５ FACILITIES ............................................................................................................................................... ５ EQUIPMENT ............................................................................................................................................. ５ 5. SUMMARY OF TEST RESULTS ................................................................................................................. ６ 6. DESCRIPTION OF DYNAMIC FREQUENCY SELECTION TEST .............................................................. ７ 6.1 Requirements..................................................................................................................................... ７ 6.2 Limit .................................................................................................................................................... ８ 6.3 DFS detection threshold values....................................................................................................... ９ 6.4 DFS test signals............................................................................................................................. １０ 6.5 Test and measurement system .................................................................................................... １１ 6.6 TEST RESULT ................................................................................................................................ １３ 7. LIST OF TEST EQUIPMENT ................................................................................................................... １７ 8. ANNEX A_ TEST SETUP PHOTO ........................................................................................................... １８ F-TP22-03 (Rev.00) ３ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 1. EUT DESCRIPTION Model LGSBWAC93 EUT Type RF Module Power Supply DC 3.30 V Modulation Type OFDM Operating mode Slave Device without radar detection 5250 – 5350 MHz (UNII-2A Band) Frequency Range 5470 – 5725 MHz (UNII-2C Band) Test Procedure FCC KDB 905462 D02 v02 Architecture 802.11a/n/ac Channel Bandwidth 20, 40, 80MHz Antenna type: FPCB Peak Gain Antenna Specification Ant 1 : 0.58 dBi(UNII2C) /1.89 dBi(UNII2C) Ant 2 : 2.81 dBi(UNII2C) /4.77 dBi(UNII2C) Date(s) of Tests March 06, 2019 ~ April 05, 2019 PMN LGSBWAC93 (Product Marketing Number) HVIN (Hardware Version Identification TWCM-K504D Number) FVIN (Firmware Version Identification MT7668_V1.0 Number) HMN N/A (Host Marketing Name) Note: 1. TPC is not required since the maximum EIRP is less than 500mW(27dBm). 2. WLAN traffic that meets or exceeds the minimum required loading was generated by transferring a data stream from the controller/server PC to the EUT using Streaming Video. 3. Overview of Master Device : The Master Device is a SAMSUNG Access Point, FCC ID: A3LWEA453E. The rated output power of the Master unit is > 23dBm (EIRP). Therefore the required interference threshold level is –64 dBm. The calibrated radiated DFS Detection Threshold level is set to –64 dBm. The tested level is lower than the required level hence it provides a margin to the limit F-TP22-03 (Rev.00) ４ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 2. SCOPE This report has been prepared to demonstrate compliance with the requirements for Dynamic Frequency Selection(DFS) as stated in KDB 905462 D02 v02. Testing was performed in accordance with the measurement procedure described in FCC KDB 905462 D02 v02. 3. INSTRUMENT CALIBRATION The measuring equipment, which was utilized in performing the tests documented herein, has been calibrated in accordance with the manufacturer's recommendations for utilizing calibration equipment’s, which is traceable to recognized national standards. Especially, all antenna for measurement is calibrated in accordance with the requirements of C63.5 (Version : 2017). 4. FACILITIES AND ACCREDITATIONS FACILITIES The SAC(Semi-Anechoic Chamber) and conducted measurement facility used to collect the radiated data are located at the 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA. The site is constructed in conformance with the requirements of ANSI C63.4. (Version :2014) and CISPR Publication 22. Detailed description of test facility was submitted to the Commission and accepted dated April 02, 2018 (Registration Number: KR0032 ). For ISED, test facility was accepted dated February 14, 2019 (CAB identifier: KR0032). EQUIPMENT Radiated emissions are measured with one or more of the following types of Linearly polarized antennas: tuned dipole, bi-conical, log periodic, bi-log, and/or ridged waveguide, horn. Spectrum analyzers with pre- selectors and quasi-peak detectors are used to perform radiated measurements. Conducted emissions are measured with Line Impedance Stabilization Networks and EMI Test Receivers. Calibrated wideband preamplifiers, coaxial cables, and coaxial attenuators are also used for making measurements. All receiving equipment conforms to CISPR Publication 16-1, “Radio Interference Measuring Apparatus and Measurement Methods.” F-TP22-03 (Rev.00) ５ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 5. SUMMARY OF TEST RESULTS Band Parameter Limit Result Channel Move Time 10 seconds NTNote2 200 ms + aggregate of 60 ms over UNII-2A Channel Closing Transmission Time NTNote2 remaining 10 second period Non-occupancy Period 30 minutes NTNote2 Channel Move Time 10 seconds PASS 200 ms + aggregate of 60 ms over UNII-2C Channel Closing Transmission Time PASS remaining 10 second period Non-occupancy Period 30 minutes PASS Note: 1. NT = Not Tested, NA = Not Applicable 2. The KDB905462 D02 v02 : Each one channel selected between UNII-2A, UNII-2C is chosen for the testing. Therefore, We performed the only UNII-2C test 3. All Antenna Configuration of operation were investigated and the worst case configuration results are reported. - Mode : Antenna1, Antenna2, Antenna1 + Antenna2 - Worstcase : Antenna1 + Antenna2 F-TP22-03 (Rev.00) ６ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 6. DESCRIPTION OF DYNAMIC FREQUENCY SELECTION TEST 6.1 Requirements KDB905462 D02 v02(04/08/2016) the following are the requirements for Client Devices: a) A Client Device will not transmit before having received appropriate control signals from a Master Device. b) A Client Device will stop all its transmissions whenever instructed by a Master Device to which it is associated and will meet the Channel Move Time and Channel Closing Transmission Time requirements. The Client Device will not resume any transmissions until it has again received control signals from a Master Device. c) If a Client Device is performing In-Service Monitoring and detects a Radar Waveform above the DFS Detection Threshold, it will inform the Master Device. This is equivalent to the Master Device detecting the Radar Waveform and d) through f) of section 5.1.1(KDB905462 D02 v02) apply. d) Irrespective of Client Device or Master Device detection the Channel Move Time and Channel Closing Transmission Time requirements remain the same. F-TP22-03 (Rev.00) ７ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 6.2 Limit Parameter Value Non-occupancy period Minimum 30 minutes Channel Availability Check Time 60 seconds 10 seconds Channel Move Time See Note 1. 200 milliseconds + an Aggregate of 60 milliseconds over Channel Closing Transmission Time Remaining 10 second period. See Notes 1 and 2. Minimum 100 % of the U-NII 99 % transmission Power U-NII Detection Bandwidth 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 Channell 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. Note3: 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. F-TP22-03 (Rev.00) ８ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 6.3 DFS detection threshold values The DFS detection thresholds are defined for Master devices and Client Devices with In-service monitoring. These detection thresholds are listed in the following table. Value Maximum Transmit Power (See Notes 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. F-TP22-03 (Rev.00) ９ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 6.4 DFS test signals 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 Number Minimum Radar Pulse Width PRI Percentage of Of Number of Type (μsec) (μsec) Successful Pulses Trials Detection 0 1 1428 18 See Note 1 See Note 1 Test A: 15 unique Roundup 1 60% 30 PRI values 360 Randomly selected 19·106 From the list of 23 PRI µsec PRI values in Table 5a Test B: 15 unique PRI values Randomly selected 1 1 within the range of 518-3066 µ sec, with a minimum increment of 1 µ sec, 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 Note1: Short pulse Radar Type 0 should be used for the detection bandwidth test, channel move time, and channel closing time tests. F-TP22-03 (Rev.00) １０ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 6.5 Test and measurement system General Test Setup Procedure: 1. Connect FCC approved Master AP to a network, via wired Ethernet, that allows connection to an FTP server. 2. Associate the EUT with the Master AP. 3. Launch the FTP application on the EUT. 4. Connect to the FTP server application to the FTP server hosting the file 5. Initiate an FTP download of the file from the host. 6. Monitor the channel loading during transfer. 7. Reduce the maximum allowed data rate for the Master AP, using the AP’s GUI interface. 8. Repeat steps 4-6 until the channel loading is as close to 20 % as possible. 9. Record the data rate setting on the Master AP and the channel loading. 10. While the system is performing an FTP transfer using the settings form item 8 above, perform the Channel Closing Transmission Time and Channel Move Time Measurements as required by KDB905462 D02 v02 using a conducted test. System calibrations A-50-ohm load is connected in place of the spectrum analyzer, and the spectrum analyzer is connected to a coaxial cable. The signal generator is set to CW mode. The amplitude of the signal generator is adjusted to yield a level of - 62 dBm as measured on the spectrum analyzer. Without changing any of the instrument settings, the spectrum analyzer is reconnected to the common port of the spectrum analyzer combiner or divider. The spectrum analyzer displays the level of the signal generator higher than the client TX level. Because we can not search the signal generator in the spectrum analyzer when the signal generator level is - 62 dBm. The spectrum analyzer will still indicate the level higher than the client TX level. F-TP22-03 (Rev.00) １１ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 Procedure The KDB905462 D02 v02 describes a radiated test setup and a conducted test setup. A radiated test setup was used for this testing. Figure 7-1 shows the typical test setup. Each one channel selected between UNII-2A, UNII-2C is chosen for the testing. Figure 7-1. Test Setup 1. The radar pulse generator is setup to provide a pulse at the frequency that the Master and Client are operating. A Type 0 radar pulse with a 1 μs pulse width and a 1428 μs 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 -62 dBm at the antenna of the Master device. 3. The Client Device (EUT) is set up per the diagram in Figure 3-1 and communications between the Master device and the Client is established. 4. The MPEG file specified by the FCC (”6½ Magic Hours”) is streamed from the “file computer” through the Master to the Slave Device and played in full motion video using Media Player Classic Ver.6.4.8.6 in order to properly load the network. 5. The spectrum analyzer is set to record about 15 sec window to any transmissions occurring up to and after 10 sec. 6. The system is again setup and the monitoring time is shortened in order to capture the Channel Closing Transmission Time. This time is measured to insure that the Client ceases transmission within 200 ms and the aggregate of emissions occurring after 200 ms up to 10 sec do not exceed 60 ms. (Note: the channel may be different since the Master and Client have changed channels due to the detection of the initial radar pulse.) 7. After the initial radar burst the channel is monitored for 30 minutes to insure no transmissions or beacons occur. A second monitoring setup is used to verify that the Master and Client have both moved to different channels. F-TP22-03 (Rev.00) １２ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 6.6 TEST RESULT Type0 : PRI Type0 : Radar Pulse Number Marker Descriptions: Number of Pulse Form M1R to M1 : 18 F-TP22-03 (Rev.00) １３ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 Time Display, Non WLAN Channel Traffic Time Display, WLAN Channel Traffic (Streaming Video) F-TP22-03 (Rev.00) １４ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 Channel Move Time & Channel Closing Transmission Time Note: 1. Test BW : 802.11ac(VHT80) 2. Test Channel : 106 3. Channel Move Time : 4.914645s (Limit : 10 s) 4. Channel Closing Transmission Time, Aggregate Time After 10s : 0 (Limit : 60 ms) F-TP22-03 (Rev.00) １５ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 Non-occupancy Period – Monitoring live time spectrum analyzer – Elapse time 30 minutes Note: 1. Test BW : 802.11ac(VHT80) 2. Test Channel : 138 F-TP22-03 (Rev.00) １６ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 7. LIST OF TEST EQUIPMENT Calibration Calibration Manufacturer Model / Equipment Serial No. Date Interval SAMSUNG WEA453e / S2LF812265 N/A N/A ELECTRONICS Wireless AP (Master Device) (FCC ID: A3LWEA453E) ADLINK PXI/DFS Measurement System(S/G) 03/20/2019 Annual 302581/735 ADLINK PXI/DFS Measurement System(S/A) 03/20/2019 Annual 303582/113 Weinschel AF9003-69-31 / Step Attenuator 10/15/2018 Annual 5701 Cernex CDPU5260404K / 4 Way Power Divider 03/04/2019 Annual 14695 Narda 4426-4 / 4 Way Power Divider 01/30/2019 Annual 11927 F-TP22-03 (Rev.00) １７ / 18 HCT CO.,LTD.

FCC ID: BEJLGSBWAC93 Report No.: HCT-RF-1904-FI007 IC : 2703H-LGSBWAC93 8. ANNEX A_ TEST SETUP PHOTO Please refer to test setup photo file no. as follows; No. Description 1 HCT-RF-1904-FI007-P F-TP22-03 (Rev.00) １８ / 18 HCT CO.,LTD.


Document Created: 2019-05-13 19:29:44
Document Modified: 2019-05-13 19:29:44
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