DFS Test Report

FCC ID: ZNFX410PM

Test Report

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FCCID_3927499

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 Certification . Date of Issue: Applicant Name: July 17, 2018 LG Electronics MobileComm U.S.A., Inc. Test Site/Location: HCT CO., LTD., 74,Seoicheon—ro 578beon—gil, Majang— Address: myeo,Icheon—si, Gyeonggi—do, 17383, Rep. of KOREA 1000 Sylvan Avenue, Englewood Cliffs NJ 07632 Report No.: HCT—RF—1807—FCO09—R1 FCC ID: ZNFX410PM APPLICANT: LG Electronics MobileComm U.S.A., Inc. Model: LM—X410PM Additional Model: LMX410PM, X410PM EUT Type: Multi—band GSMMCDMA/LTE/CDMA Phone with BT and WLAN Max. RF Frequency Range Power Output Power: Band Mode (MHz) (dBm) 802.11a 5260 — 5320 17.78 802.11n_HT20 5260 — 5320 17.94 uniia |_80244n—HT4o 5270 — 5310 15.64 802.11ac_HT20 5260 — 5320 12.75 802.11ac_HT4O 5270 — 5310 9.80 802.11ac_HT8O 5290 8.58 802.ta 5500 — 5720 18.53 802.11n_HT20 5500 — 5720 18.62 unitse |_80244n—6T4o 5510 — 5710 16.09 802.11ac_HT20 5500 — 5720 13,04 802.11ac_HT40 5510 — 5710 10.20 802.11ac_HT8O 5530 — 5690 9.13 Modulation type OFDM 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 this equipment 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. HCT CO., LTD. Certifies that no party to this application has subject to a denial of Federal benefits that includes FCC benefits pursuant to section 5301 of the Anti-Drug Abuse Act of 1998,21 U.S. C.853(a) Report prepared b'y : Se Wook Park Approved by : Jong Seok Lee 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-TP22-0‘3M(Rev.OO) C 1 /20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM Version TEST REPORT NO. DATE DESCRIPTION HCT-RF-1807-FC009 July 10, 2018 - First Approval Report - Revised the aggregate time on page 18 HCT-RF-1807-FC009-R1 July 17, 2018 - Revised the Rx Frequency Range on page 4 F-TP22-03 (Rev.00) ２ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM Table of Contents 1. GENERAL INFORMATION .......................................................................................................................... ４ 2. EUT DESCRIPTION ..................................................................................................................................... ４ 3. SCOPE ......................................................................................................................................................... ５ 4. INSTRUMENT CALIBRATION..................................................................................................................... ５ 5. FACILITIES AND ACCREDITATIONS ......................................................................................................... ５ 5.1 FACILITIES ......................................................................................................................................... ５ 5.2 EQUIPMENT ....................................................................................................................................... ５ 6. SUMMARY OF TEST RESULTS ................................................................................................................. ６ 7. DESCRIPTION OF DYNAMIC FREQUENCY SELECTION TEST.............................................................. ７ 7.1 APPLICABILITY ................................................................................................................................. ７ 7.2 REQUIREMENTS................................................................................................................................ ８ 7.3 DFS DETECTION THRESHOLD VALUES .................................................................................... １０ 7.4 PARAMETERS OF DFS TEST SIGNALS...................................................................................... １１ 7.5 TEST AND MEASUREMENT SYSTEM ......................................................................................... １３ 7.6 DESCRIPTION OF EUT.................................................................................................................. １５ 7.7 TEST RESULT ................................................................................................................................ １６ 8. LIST OF TEST EQUIPMENT ................................................................................................................... １９ 9. APPENDIX A_ TEST SETUP PHOTO ..................................................................................................... ２０ F-TP22-03 (Rev.00) ３ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 1. GENERAL INFORMATION Applicant: LG Electronics MobileComm U.S.A., Inc. Address: 1000 Sylvan Avenue, Englewood Cliffs NJ 07632 FCC ID: ZNFX410PM EUT Type: Multi-band GSM/WCDMA/LTE/CDMA Phone with BT and WLAN Model: LM-X410PM Additional Model: LMX410PM, X410PM Date(s) of Tests: July 09, 2018 ~ July 10, 2018 HCT Co., Ltd. Place of Tests: 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, Korea 2. EUT DESCRIPTION Model LM-X410PM Additional Model LMX410PM, X410PM EUT Type Multi-band GSM/WCDMA/LTE/CDMA Phone with BT and WLAN Power Supply DC 3.85 V Model: BL-T36_WW_BYD Battery Information Type: LITHIUM BATTERY TX_20 MHz BW: 5260 MHz - 5320 MHz (UNII 2A)/ 5500 MHz - 5720 MHz (UNII 2C) 40 MHz BW: 5270 MHz - 5310 MHz (UNII 2A)/ 5510 MHz - 5710 MHz (UNII 2C) 80 MHz BW: 5290 MHz (UNII 2A)/ 5530 MHz – 5690 MHz (UNII 2C) Frequency Range RX_20 MHz BW: 5260 MHz - 5320 MHz (UNII 2A)/ 5500 MHz - 5720 MHz (UNII 2C) 40 MHz BW: 5270 MHz - 5310 MHz (UNII 2A)/ 5510 MHz - 5710 MHz (UNII 2C) 80 MHz BW: 5290 MHz (UNII 2A)/ 5530 MHz – 5690 MHz (UNII 2C) Modulation Type OFDM(802.11a, 802.11n_HT20/40, 802.11ac_VHT20/40/80) Antenna type: PIFA type Antenna Specification Peak Gain : -2.75 dBi(UNII 2A) / -3.23 dBi(UNII 2C) F-TP22-03 (Rev.00) ４ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 3. 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. 4. 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 equipments, which is traceable to recognized national standards. Espectially, all antenna for measurement is calibrated in accordance with the requirements of C63.5 (Version : 2006). 5. FACILITIES AND ACCREDITATIONS 5.1 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, 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 July 07, 2015 (Registration Number: 90661) 5.2 EQUIPMENT Spectrum analyzers with pre-selectors and quasi-peak detectors are used to perform measurements.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 / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 6. SUMMARY OF TEST RESULTS Band Parameter Limit Result Channel Move Time 10 seconds PASS 200 ms + aggregate of 60 ms over UNII2A Channel Closing Transmission Time PASS remaining 10 second period Non-occupancy Period 30 minutes PASS Channel Move Time 10 seconds PASS 200 ms + aggregate of 60 ms over UNII2C Channel Closing Transmission Time PASS remaining 10 second period Non-occupancy Period 30 minutes PASS F-TP22-03 (Rev.00) ６ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 7. DESCRIPTION OF DYNAMIC FREQUENCY SELECTION TEST 7.1 APPLICABILITY The following table from KDB905462 D02 v02(04/08/2016) lists the applicable requirements for the DFS testing. The device evaluated in this report is considered a client device without radar detection capability. Operation Mode Requirement Client Without Radar Client With Radar Master 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 Uniform Spreading Yes Not required Not required U-NII Detection Bandwidth Yes Not required Yes Table 1-1. DFS Applicability Operation Mode Requirement Client Without Radar Client With Radar Master 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 Table 1-2. DFS Applicability During Normal Operation F-TP22-03 (Rev.00) ７ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 7.2 REQUIREMENTS Per 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 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) ８ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM Channel Move Time and Channel Closing Transmission Time requirements are listed following table. 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 U-NII Detection Bandwidth 99 % transmission 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 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. Table 1-3: DFS Response requirements F-TP22-03 (Rev.00) ９ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 7.3 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. Table 1-4: Detection Thresholds for Master Devices and Client Devices with Radar Detection F-TP22-03 (Rev.00) １０ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 7.4 PARAMETERS OF 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. Table 1-5 lists the parameters for the Short Pulse Radar Waveforms. A plot of the Radar pulse Type 0 used for testing is included in Section 7.7 of this report. F-TP22-03 (Rev.00) １１ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM Minimum Pulse Number Percentage Minimum PRI Radar Type Width Of of Number of (μsec) (μsec) Pulses Successful 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 19ꞏ106 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 80% 120 Note1: Short pulse Radar Type 0 should be used for the detection bandwidth test, channel move time, and channel closing time tests. Table 1-5: Parameters for Short Pulse Radar Waveforms F-TP22-03 (Rev.00) １２ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 7.5 TEST AND MEASUREMENT SYSTEM General Test Setup Procedure: 1. The EUT was operating 802.11a, 802.11n_HT20/40, 802.11ac_VHT20/40/80 during the test. 2. Connect FCC approved Master AP to a network, via wired Ethernet, that allows connection to an FTP server. 3. Associate the EUT with the Master AP. 4. Launch the FTP application on the EUT. 5. Connect to the FTP server application to the FTP server hosting the file 6. Initiate an FTP download of the file from the host. 7. Monitor the channel loading during transfer. 8. Reduce the maximum allowed data rate for the Master AP, using the AP’s GUI interface. 9. Repeat steps 5-7 until the channel loading is as close to 20 % as possible. 10. Record the data rate setting on the Master AP and the channel loading. 11. While the system is performing an FTP transfer using the settings form item 9 above, perform the Channel Closing Transmission Time and Channel Move Time Measurements as required by KDB905462 D02 v02 using a conducted test. 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 3-1 shows the typical test setup. Each one channel selected between 5260 and 5320 MHz, 5500 and 5700 is chosen for the testing. Figure 3-1. Conducted Test Setup for DFS F-TP22-03 (Rev.00) １３ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 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. SYSTEM CALIBRATION 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) １４ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 7.6 DESCRIPTION OF EUT The EUT operates over the 5260 MHz - 5320 MHz and 5500 MHz - 5720 MHz ranges. The EUT is a slave device without radar detection. The EUT antenna has a gain of -2.75 dBi in 5250 MHz - 5350 MHz band and -3.23 dBi in 5470 MHz- 5725 MHz band. The highest power level within these bands in 15.19 dBm EIRP in the 5260 MHz - 5320 MHz band and 15.39 dBm EIRP in the 5500 MHz – 5720 MHz band. The EUT one transmitter/receiver chain connected to a coaxial cable to perform conducted tests. TPC is not required since the maximum EIRP is less than 500 mW. The EUT utilizes the 802.11a/n/ac architecture. The nominal channel bandwidth is implemented: 20, 40, 80 MHz F-TP22-03 (Rev.00) １５ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 7.7 TEST RESULT Test using the widest BW mode available for the link _ [802.11ac_VHT80 Mode : ch106] ▣ Type0 Radar Pulse Type0 PRI Type0 Radar Pulse Number Marker Descriptions: Number of Pulse Form M1R to M1 : 18 F-TP22-03 (Rev.00) １６ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM ▣ RESULT PLOTS_(UNII2C Band) Time Display, Non WLAN Channel Traffic Time Display, WLAN Channel Traffic (Streaming Video) F-TP22-03 (Rev.00) １７ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM ㆍChannel Move Time : 0.051493 s(Limit : 10 s) ㆍChannel Closing Transmission Time, Aggregate Time After 200 ms : 0.00 s (Limit : 60 ms) Non-occupancy Period – Monitoring live spectrum analyzer – Elapse time 30 minutes F-TP22-03 (Rev.00) １８ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 8. LIST OF TEST EQUIPMENT Calibration Calibration Manufacturer Model / Equipment Serial No. Date Interval S2LF812265 SAMSUNG WEA453e / Wireless AP N/A N/A FCC ID: ELECTRONICS (Master Device) A3LWEA453E ADLINK PXI/DFS Measurement System(S/G) 03/22/2018 Annual 302581/735 ADLINK PXI/DFS Measurement System(S/A) 03/22/2018 Annual 303582/113 Agilent N9020A / Signal Analyzer 06/13/2017 Annual MY51110085 Hewlett Packard 11636B/Power Divider 02/21/2018 Annual 0531 Agilent 87300B / Directional Coupler 11/20/2017 Annual 3116A03621 Hewlett Packard 11667B / Power Splitter 06/07/2018 Annual 05001 Agilent 8493C / Attenuator(10 dB) 07/10/2017 Annual 07560 WEINSCHEL 2-3 / Attenuator(3 dB) 10/13/2017 Annual BR0617 Weinschel AF9003-69-31 / Step Attenuator 10/12/2017 Annual 5701 Narda 4426-4 / 4 Way Power Divider 02/20/2018 Annual 15298 F-TP22-03 (Rev.00) １９ / 20 HCT CO.,LTD.

Report No.: HCT-RF-1807-FC009-R1 FCC ID: ZNFX410PM 9. APPENDIX A_ TEST SETUP PHOTO Please refer to test setup photo file no. as follows; No. Description 1 HCT-RF-1807-FC009-R1-P F-TP22-03 (Rev.00) ２０ / 20 HCT CO.,LTD.


Document Created: 2018-07-17 15:22:53
Document Modified: 2018-07-17 15:22:53
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