DFS Test Report

FCC ID: ZNFG710TM

Test Report

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FCCID_3819360

PCTEST ENGINEERING LABORATORY, INC. 7185 Oakland Mills Road, Columbia, MD 21046 USA Tel. 410.290.6652 / Fax 410.290.6654 http://www.pctest.com MEASUREMENT REPORT FCC PART 15.407 DFS Applicant Name: Date of Testing: LG Electronics MobileComm U.S.A 2/27-3/23/2018 1000 Sylvan Avenue Test Site/Location: Englewood Cliffs, NJ 07632 PCTEST Lab. Columbia, MD, USA United States Test Report Serial No.: 1M1802260030-07.ZNF FCC ID: ZNFG710TM APPLICANT: LG Electronics MobileComm U.S.A Application Type: Certification Model: LM-G710TM, LMG710TM, G710TM, LM-G710AWM, LMG710AWM, G710AWM EUT Type: Client Only Device, No Radar Detection Capability Max. RF Output Power: 58.479 mW (17.67 dBm) Conducted (802.11a UNII Band 2A) 48.641 mW (16.87 dBm) Conducted (802.11n UNII Band 2C) Frequency Range: 5260 – 5320 MHz (UNII-2A Band) 5500 – 5720 MHz (UNII-2C Band) FCC Classification: Unlicensed National Information Infrastructure (UNII) FCC Rule Part(s): Part 15.247(UNII) Test Procedure(s): KDB 905462 D02 v02 This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in KDB 905462 D02 v02 Compliance Measurement Procedures for Unlicensed-National Information Infrastructure Devices Operating in the 5.25 – 5.35 GHz and 5.47 – 5.725 GHz Bands Incorporating Dynamic Frequency Selection. Test results reported herein relate only to the item(s) tested. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 1 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

T A B L E O F C O N T E N T S 1.0 INTRODUCTION .......................................................................................................................................... 3 1.1 Scope ................................................................................................................................................................... 3 1.2 Evaluation Procedure ........................................................................................................................................... 3 1.3 Summary of Test Results ..................................................................................................................................... 3 2.0 PRODUCT INFORMATION.......................................................................................................................... 4 2.1 Equipment Description ......................................................................................................................................... 4 2.2 EUT Capabilities ................................................................................................................................................... 4 2.3 Modifications ........................................................................................................................................................ 4 3.0 DESCRIPTION OF DYNAMIC FREQUENCY SELECTION TEST .............................................................. 5 3.1 Applicability .......................................................................................................................................................... 5 3.2 Requirements ....................................................................................................................................................... 5 3.3 DFS Detection Threshold Values ......................................................................................................................... 7 3.4 Parameters of DFS Test Signals .......................................................................................................................... 7 3.5 Procedure ............................................................................................................................................................. 8 4.0 TEST EQUIPMENT ...................................................................................................................................... 9 4.1 Additional Equipment............................................................................................................................................ 9 5.0 TEST RESULTS ......................................................................................................................................... 10 6.0 CONCLUSION ............................................................................................................................................ 14 MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 2 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

1.0 I N T R O D U C T I O N 1.1 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 on the LG Portable Handset FCC ID: ZNFG710TM. As of July 20, 2007 all devices operating in the 5250 – 5350 MHz and/or the 5470 – 5725 MHz bands must comply with the DFS requirements. As the EUT does not have radar detection capability it was evaluated as a Client Only Device. All test results reported herein are applicable to the sample selected for testing. The unit used for testing was supplied by LG Electronics MobileComm U.S.A. 1.2 Evaluation Procedure Conducted test methodology was used for the DFS evaluation procedure of the EUT. No deviations to the test procedure and test methods occurred during the evaluation of the EUT. 1.3 Summary of Test Results The EUT was found to be compliant with the requirements for DFS as required for a Client Device per Part 15.407(h), RSS-247 and KDB 905462 D02 v02. The following table lists the measured parameters. The actual data and plots can be found in Section 5 and 6 of this report. Parameter Measured Limit Result 5260 – 5320 MHz UNII – 2A Band Channel Move Time 6.16 s 10 seconds Pass < 200ms 200ms + aggregate of Channel Closing Transmission Time + 51.78 ms 60ms over remaining Pass (aggregate) 10 second period Monitored for 10 No client transmission Client beacon test minutes with no client Pass occurred transmission 5470 – 5725 MHz UNII – 2C Band Channel Move Time 6.79 s 10 seconds Pass 200ms + aggregate of < 200ms Channel Closing Transmission Time 60ms over remaining Pass + 2.18 ms (aggregate) 10 second period Monitored for 10 No client transmission Client beacon test minutes with no client Pass occurred transmission Table 1-1. DFS Test Results Summary MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 3 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

2.0 P R O D U C T I N F O R M A T I O N 2.1 Equipment Description The Equipment Under Test (EUT) is the LG Portable Handset FCC ID: ZNFG710TM. Mode of Operation: Master Device Client Device (No radar detection) Client Device with Radar Detection Parameters of EUT: 5260 – 5320 MHz Frequency 5500 – 5720 MHz 58.479 mW (17.67 dBm) Conducted (802.11a UNII Band 2A) Output Power: 48.641 mW (16.87 dBm) Conducted (802.11n UNII Band 2C) Modulation: OFDM Channel Bandwidth: 20, 40, 80 MHz Table 2-1. Parameters of EUT Test Device Serial No.: 04357 2.2 EUT Capabilities This device contains the following capabilities: 850/1900 GSM/GPRS/EDGE, 850/1700/1900 WCDMA/HSPA, Multi-band LTE, 802.11b/g/n/ac WLAN, 802.11a/ n/ac UNII, Bluetooth (1x, EDR, LE), NFC 2.3 Modifications No modifications to the EUT were required in order to comply with the DFS specifications. MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 4 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

3.0 D E S C R I P T I O N O F D Y N A M I C F R E Q U E N C Y S E L E C T I O N T E S T 3.1 Applicability The following table from KDB 905462 D02 v02 lists the applicable requirements for the DFS testing. The device evaluated in this report is considered a client device without radar detection capability. Requirement Operational Mode Client Without Client With Radar Master 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 Uniform Spreading Yes Not required Not required U-NII Detection Bandwidth Yes Not required Yes Table 3-1. DFS Applicability Requirement Operational Mode Client Client 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 Table 3-2. DFS Applicability During Normal Operation 3.2 Requirements Per KDB 905462 D02 v02 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. MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 5 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

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. Channel Move Time and Channel Closing Transmission Time requirements are listed in the following table. Parameter Value Non-occupancy period Minimum 30 minutes Channel Availability Check Time 60 seconds 10 seconds Channel Move Time See Note 1. Channel Closing Transmission Time 200 milliseconds + an aggregate of 60 milliseconds over remaining 10 second period. See Notes 1 and 2. Minimum 80% of the U- U-NII Detection Bandwidth NII 99% transmission 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 Waveform. 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 1 is used and for each frequency step the minimum percentage of detection is 90 percent. Measurements are performed with no data traffic. Table 3-3: DFS Response Requirements MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 6 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

3.3 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 3-4: Detection Thresholds for Master Devices and Client Devices with Radar Detection 3.4 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 1 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 3-5 lists the parameters for the Short Pulse Radar Waveforms. A plot of the Radar Pulse Type 1 used for testing is included in Section 5.0 of this report. Minimum Number Minimum Pulse Width PRI Percentage of Radar Type of Number of (μsec) (μsec) Successful Pulses Trials Detection 1 1 1428 18 60% 30 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 Table 3-5: Parameters for Short Pulse Radar Waveforms Minimum Pulse Chirp Number Minimum Radar PRI Number Percentage of Width Width of Pulses Number of Type (μsec) of Bursts Successful (μsec) (MHz) per Burst Trials Detection 5 50 - 100 5 - 20 5 – 20 1-3 8 - 20 60% 30 Table 3-6. Parameters for Long Pulse Radar Waveforms MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 7 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

Hopping Minimum Minimum Pulse Pulses Hopping Radar PRI Sequence Percentage of Number Width per Rate Type (μsec) Length Successful of (μsec) Hop (kHz) (msec) Detection Trials 6 1 333 9 0.333 300 70% 30 Table 3-7. Parameters for Frequency Hopping Radar Waveforms 3.5 Procedure KDB 905462 D02 v02 describes a radiated test setup and a conducted test setup. The conducted test setup was used for this testing. Figure 3-1 shows the typical test setup. In Band 2A, one channel selected between 5260 and 5350 MHz is chosen for the testing. In Band 2C, one channel selected between 5500 and 5720 MHz was chosen for testing. Figure 3-1. Conducted Test Setup for DFS 1. The “Aeroflex PXI DFS Radar Simulator and Analyzer Test Suite” is setup to provide a simulated radar pulse at the frequency that the Master and Client are operating. A Type 0 radar pulse was used. 2. 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. 3. An MPEG or data file that is typical for the device is streamed from the Master to the Client to properly load the network. 4. The “Aeroflex PXI DFS Radar Simulator and Analyzer Test Suite” is set to record and display 12 seconds of time, starting from where the simulated radar is generated. This time domain plot captures any transmissions occurring up to and after 10sec. Aggregate time is computed to ensure compliance. (Note: the channel may be different since the Master and Client have changed channels due to the detection of the initial radar pulse.) 5. After the initial radar burst the channel is monitored for 10 minutes to ensure no transmissions or beacons occur. A second monitoring setup is used to verify that the Master and Client have both moved to different channels. MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 8 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

4.0 T E S T E Q U I P M E N T Test Equipment Calibration is traceable to the National Institute of Standards and Technology (NIST). Measurements antennas used during testing were calibrated in accordance to the requirements of ANSI C63.5- 2006. Manufacturer Model Description Cal Date Cal Interval Cal Due Serial Number Aeroflex PXI 82531 PXI RF Synthesizer 9/22/2016 Biennial 9/22/2018 1082329 Aeroflex PXI 82531 PXI DFS Radar Simulator & Analyzer 9/22/2016 Biennial 9/22/2018 1082329 Agilent N9038A MXE EMI Receiver 4/26/2017 Annual 4/26/2018 MY51210133 Table 4-1. Annual Test Equipment Calibration Schedule 4.1 Additional Equipment The following equipment was used in support of the DFS testing. Device Manufacturer Model/Description Description S/N: AIR-CAP2702E-A-K9 Access Point FTX1834S05B Master Cisco Systems AIR-CT2504-K9 V03 Controller PSZ18381P6K Table 4-2. Support Equipment MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 9 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

5.0 T E S T R E S U L T S Channel Loading Notes: Per KDB 905462 D02 v02, timing plots are required with calculations demonstrating a minimum channel loading of approximately 17% or greater. For example, you can zero span the spectrum analyzer and approximate the transmission time. Figure 5-1. Band 2A Pulse Width and Period Channel Loading = Pulse Width / Period = 46 µs / 165.6 µs = 27.8 % MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 10 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

Figure 5-2. Band 2C Pulse Width and Period Channel Loading = Pulse Width / Period = 36.9 µs / 119.6 µs = 30.9 % MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 11 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

Move Time and Aggregate Time Notes: 1. Trigger Threshold was configured to only capture client pulses. The pulses shown in the plots below have been determined to be from the Master AP. 2. Marker Info and Aggregate time results are shown on the right side of the plots below. Figure 5-3. Band 2A Move Time and Aggregate Time Figure 5-4. Band 2C Move Time and Aggregate Time MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 12 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

Figure 5-5. Band 2A Client Beacon Test – Monitoring live spectrum – Elapse time 10 minutes Figure 5-6. Band 2C Client Beacon Test – Monitoring live spectrum – Elapse time 10 minutes MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 13 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.

6.0 C O N C L U S I O N The data collected relate only to the item(s) tested and show that the LG Portable Handset FCC ID: ZNFG710TM is in compliance with the DFS requirements for a Client Device without radar detection in accordance with Part 15.407 of the FCC Rules. MEASUREMENT REPORT Approved by: FCC ID: ZNFG710TM (CERTIFICATION) Quality Manager Test Report S/N: Test Dates: EUT Type: Page 14 of 14 1M1802260030-07.ZNF 2/27-3/23/2018 Portable Handset © 2018 PCTEST Engineering Laboratory, Inc. V 7.5 2/26/2018 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


Document Created: 2019-11-21 05:53:38
Document Modified: 2019-11-21 05:53:38
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