Test Report 7

FCC ID: ZNFX420AS8

Test Report

Download: PDF
FCCID_4316758

H.a-                  74, Seoicheon—ro 578beon—gil, Majang—myeon, Icheon—si, Gyeonggi—do, Rep. of Korea
   i4                             TEL: +82—31—645—6300                 FAX: +82—31—645—6401


                                   EMI TEST REPORT
                                        FCC CERTIFICATION


Applicant                                                    Date of Issue: May 10, 2019
LG Electronics USA, Inc.
                                                             Test Report No. HCT—EM—1904—FCO27
1000 Sylvan Avenue, Englewood Cliffs NJ 07632
United Stats                                                 Test Site: HCT CO., LTD.



          FCC ID :                                      ZNFX420AS8


 Rule Part(s) / Standard(s)          : 47 CFR PART 15 Subpart B Class B
                                       ANSI C63.4—2014
 EUT Type                            : Portable Handset
 Model Name                          : LM—X420A88
 Additional Model Name               : LMX420AS8, X420AS88, LM—X420CS, LMX420CS, X420CS
 Travel Adaptor Information          _: Model Name: MCS—01WPE / Manufacturer: PNTELECOM
 Date of Test                        : April 17, 2019 to April 23, 2019

The device bearing the trade name and model specified above, has been shown to comply with the applicable
technical standards as indicated in the measurement report and was tested in accordance with the measurement
procedures specified in ANSI C63.4—2014. (See Test Report if any modifications were made for compliance)
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 ofall persons taking them.
HCT certifies that no party to application has been denial the FCC benefits pursuant to Section 5301 of the Anti—Drug
Abuse Act of 1988, 21 U.S.C 862




Tested By                                                    Reviewed




Na—Eun Song                                                    u—Cheol Yoon
Test Engineer                                                Technical Manager
EMC Team                                                     EMC Team
Certification Division                                       Certification Division

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 / 22                                _ HCTCO.,LTD.


FCC ID: ZNFX420AS8                                                   Report No.: HCT—EM—1904—FCO27


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REVISION HISTORY
 The revision history for this document is shown in table.


          Report No.                Issue Date               Information About Changes
    HCT—EM—1904—FCO27             May 10, 2019                    Initial Release




F—TP22—03 (Rev.00)                               2 / 22                         HCT CO.,LTD.


FCC ID: ZNFX420AS8                                                                                                                                       Report No.: HCT—EM—1904—FCO27


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                                                                       TABLE OF CONTENTS


                                                                                                                                                                                                 PAGE

 1. GENERAL INFORMATION 1.22222222202020202002¥¥¥¥¥¥tsssreeeresssssssssssssssseeeeeeeeeesssssessssssssseeeeeeeeere en e ces e esc e e e e e e e e e en es 4
    EDSe)ntit i 9El 4
    1.2 T@St@d SYSt@M D@tAIIS ...........222222222222erresrreeseere se e e es se es t e es se es es e e es esc se e e e ces se se n ie ces se ce n e e e es e ce en en e ce e e es 4
    1.3 CAbDIG@ DESCIIPHOM.........22.22222222ssssrresseersesrreessere cce reess cesc rrresse esc rrrceseeserrreeseececrr ces se ce n e e e cssc ce n en e cce e es 5
    1.4 Noise Suppression Parts On CAbl@. (I/O CABDIG) .......22.222222222222sr¥¥eseee6 66e ree se e e rr e es e e r e e e e es e e e e e e e ce ce 5
    1.5 T@St FAGCIIMIEY .....2222222222222ssrreseeseessssrreeseese se reess cssc rreess cesc srress cesc sc erceseesecc cce ceese cce ere ces se n e e e cssc ce en en e cce e es 6
    1.6 Calibrati0ON Of M@ASUIING INStTUME@NE ........2222222222222222000seeees se 66e t es se esc t t e es se se e e e e es se e en e e e es e e e en e enc en e es 6
    1.7 MeASULEMENt UNCEITTAIMTY ............22222.2222seeeseereerrees se es rress se se se rees se se se e ces se se n ie ces se ce n e e e cssc ce n e enc en e es 6
2. LIST OF TEST EQUIPMENT.1222222222222224448488888s¥sssssssseeeeeessssssssssss css esc e es es es es s se e es cssc s esc es e e e e e e e e e e en en en en e es 7
3. DESCRIPTION OF TEST ..222222222222222224448sssesssssss es eeeeessssssssssssssseeeeee es es sssreesssssssee es e e e e e e e e e en en en en en e e e e e en es 8
    3.1 Measurement Of CONAUUCt@U EAMMSSIOM..........2222200000222006 666666666666 e e e vrrr se se e en en en en en en en en en en e en en en en en en en e e e e 8
    3.2 Measurement Of RAGIAt@U EMMMMSSIOM...........2222002222000 0666666666666 e es se s s s s s s se se e e e en en en en en en en en en e en en en en en en en e e e e 9
4. OPERATING MODES ...222222202020202020000s0srrrrreessssssssssssssseeeeeeeeeesssssssssssssseeeeeeeeeeerreeesscsssssee se e e e e e e e en en en en en e e es 11
    AMROitiitue amnmitsio e 11
    AWeEniEicioonmntso e 11
 5. CONDUCTED AND RADIATED EMISSION TEST SUMMARY ..2222222222222222222ss¥r es s se errree es se sece 12
    5.1 CONUUCt@U EMMSSIOM...222222222222020000022rrreeeeeeeeeeeee e e e e e e e e e e e e en en en en en en en en en en en esns se e es es se e esn e e e en e e e en en es e es e es e e e es 12
    5.2 RAUIAtEU EAMMSSIOM.......222222222200000000sssrrrreeeeeeeeeeeeeeeee e e e e e e e e e e en snn en en en en en en es eeeeee es e es esn e en e e e e e e e en en es e es es e e e e es 19
6. CONCLUSION2222222222222222220000000rrrrrrrrrr se se se se e e e e e e se e e e e e e e e e e e e e e e e e es es e e e e en en en e en en en e en en en en es e es e es es esn e en en en en en en e en e 21
7. APPENDIX A. TEST SETUP PHOTOGRAPHS .122222222222222222220888888sss¥¥¥66666eeee¢eeee es se se e es cce se e e e e e e e e ce 6e 22




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 FCC ID: ZNFX420AS8                                                   Report No.: HCT—EM—1904—FCO27


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1. GENERAL INFORMATION

1.1 Description of EUT

 Its basic purpose is used for communications.

   FCC ID                   ZNFX420AS8
   Model                    LM—X420AS8

   Additional Model         LMX420AS8, X420A¥88, LM—X420CS, LMX420CS, X420CS

   EUTL Type                Portable Handset


                            $24.2 MHz to $48.8 MHz (GSM 850)
                            1 8$50.2 MHz to 1 909.8 MHz (GSM 1 900)
                            1 $52.4 MHz to 1 907.6 MHz (WCDMA B2)
                            1712.4 MHz to 1752.6 MHz (WCDMA B4)
                            826.4 MHz to $46.6 MHz (WCDMA B5)
                            1 850 MHz to 1 910 MHz (LTE B2)
   TX Frequency
                            1 710 MHz to 1 755 MHz (LTE B4)
                            824 MHz to $49 MHz (LTE B5)
                            699 MHz to 716 MHz (LTE B12)
                            788 MHz to 798 MHz (LTE B14)
                            2 305 MHz to 2 315 MHz (LTE B30)
                            1 710 MHz to 1 780 MHz (LTE B66)
                            2 402 MHz to 2 480 MHz (Bluetooth)
                            2 412 MHz to 2 462 MHz (WiFi 2.4 GHz)

                            8$69.2 MHz to 893.8 MHz (GSM 850)
                            1 930.2 MHz to 1 989.8 MHz (GSM 1 900)
                            1 932.4 MHz to 1 987.6 MHz (WCDMA B2)
                            2 112.4 MHz to 2 152.6 MHz (WCDMA B4)
                            $71.4 MHz to 891.6 MHz (WCDMA B5)
                            1 930 MHz to 1 990 MHz (LTE B2)
                            2 110 MHz to 2 155 MHz (LTE B4)
   RX Frequency             869 MHz to 894 MHz (LTE B5)
                            729 MHz to 746 MHz (LTE B12)
                            758 MHz to 768 MHz (LTE B14)
                            717 MHz to 728 MHz (LTE B29)
                            2 350 MHz to 2 360 MHz (LTE B30)
                            2 110 MHz to 2 200 MHz (LTE B66)
                            2 402 MHz to 2 480 MHz (Bluetooth)
                            2 412 MHz to 2 462 MHz (WiFi 2.4 GHz)




F—TP22—03 (Rev.00)                               4 / 22                         HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                                   Report No.: HCT—EM—1904—FCO27


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1.2 Tested System Details

  All equipment descriptions used in the tested system (including inserted cards) are:

        Device Type                    Model Name                    Serial Number               Manufacturer

   EUT                     LM—X420AS8                                         —                LG

   Data Cable              EAD62377927                                        —                Ningbo Broad

   Earphone                EABOAO4468444                                      —                CRESYN

   Micro SD card           enAssip%figfit‘ggrggxc                              —                SAMSUNG
   TA                      MCS—01 WPPE                                        —                PNTELECOM



1.3 Cable Description

                                                  Power Cord         I/O Cable Shielded
     Product Name               Port            Shielded (Y/N)                (¥/N)                  Length (m)

                          Micro USB                           Y               N/A                    (P) 1.0
    EUT
                          Earphone                         N/A                    N                  (D) 1.2


* The marked "(D)" means the data cable and "(P)" means the power cable.


1.4 Noise Suppression Parts on Cable. (I/O Cable)

                                                    ite       B         ,             Metal H                  4
     Product Name               Port           Fergt{e/:N)ead      Location             e(t;/N;)od      Location


                            Micro USB                     N         N/A                    Y           Both End
    EUT
                            Earphone                      N         N/A                    Y           EUT End




 F—TP22—03 (Rev.00)                                       5 / 22                                 HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                         Report No.: HCT—EM—1904—FCO27


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1.5 Test Facility

 Test site is located at 74, SEOICHEON—RO, 578BEON—GIL, MAJANG—MYEON, ICHEON—SI,
 GYEONGGI—DO, SOUTH KOREA. Those measurement facilities are constructed in conformance with
 the requirements of ANSI C63.4—2014. The Normalized site attenuations (30 MHz to 1 GHz) and Site
 validation (1 GHz to 18 GHz) were performed in accordance with the standard in ANSI C63.4—2014

                     Measurement Facilities                                Registration Number
   Radiated Field strength measurement facility
   3 m Semi Anechoic chamber
   Radiated Field strength measurement facility
   10 m Semi Anechoic chamber #1                                                 KROO032

   Radiated Field strength measurement facility
   10 m Semi Anechoic chamber #2


1.6 Calibration of Measuring Instrument

 The measuring equipment, which was utilized in performing the tests documented herein, has
 been calibrated in accordance with the manufacturers 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).



1.7 Measurement Uncertainty

 The measurement uncertainties shown below were calculated in accordance with the requirements
 of ANSI C€63.4—2014.
 All measurement uncertainty values are shown with a coverage factor of k = 2 to indicate a 95 %
 level of confidence. The measurement data shown herein meets or exceeds the Ucispre measurement
 uncertainty values specified in CISPR 16—4—2 and, thus, can be compared directly to specified limits to
 determine compliance.


                      Parameter                                   Expanded Uncertainty (dB)
   Conducted Emission (0.15 MHz to 30 MHz)                                  1.82 dB
   Radiated Emissions (30 MHz to 1 GHz)                                     5.20 dB
   Radiated Emissions (1 GHz to 18 GHz)                                     5.24 dB
   Radiated Emissions (18 GHz to 40 GHz)                                    5.40 dB




F—TP22—03 (Rev.00)                                6 / 22                               HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                          Report No.: HCT—EM—1904—FCO27


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2. LIST OF TEST EQUIPMENT

      Type                    Manufacturer      Model Name        Serial Number     Calibration       CAL Date
                              oo                o                 _                 Cycle             ~——————

Conducted Emission

  |z| EMI Test Receiver       Rohde & Schwarz   ESCI              100584             1 year       06.25.2018
  |:| EMI Test Receiver       Rohde & Schwarz   ESCI              100033             1 year       06.27.2018
  [X LsN                      Rohde & Schwarz   ENV216            102245             1 year       12.12.2018
  |:| LISN                    Rohde & Schwarz   ENV216            100073             1 year       05.03.2018
  |z| Software                Rohde & Schwarz   EMC32 VER8.54.0   —                  —            —


Radiated Emission

—For measurement below 1 GHz
  |z| EMI Test Receiver       Rohde & Schwarz   ESCI              100033             1 year       06.27.2018
  ] EMI Test Receiver         Rohde & Schwarz   ESI4O0            831564103          1 year       10.31.2018
  [] Trilog Antenna           Schwarzbeck       VULB 9168         255                2 year       03.26.2019
  [_] Trilog Antenna          Schwarzbeck       VULB 9168         760                2 year       03.22.2019
  |Z| Antenna master          INNCO Systems     MAA4640—XP—ET     —                  N/A          —
                                                                  CO3000/870/
  |Z| Antenna master controller INNCO Systems   CO 3000           3599051 5/L        N/A          —

  [X] Turn Table              INNCO Systems     1060              —                  N/A          —
                                                                  CO2000/095/
  |z| Turn Table controller   INNCO Systems     CO2000            7590304/L          N/A          —

  |:| EMI Test Receiver       Rohde & Schwarz   ESU26             100241             1 year       08.14.2018
  |:| Antenna master          INNCO Systems     MA4OOO—EP         MA4OOO/283         N/A          —
  |:| Turn Table              INNCO Systems     DT3000—3T         DT3000/69          N/A          —
  [X Software                 Rohde & Schwarz   EMC32 VER8.40.0   —                  —            —
—For measurement above 1 GHz
  |z| EMI Test Receiver       Rohde & Schwarz   ESU4O             100361             1 year       10.11.2018
  ] EMI Test Receiver         Rohde & Schwarz   ESI40             831564103          1 year       10.31.2018
  |Z| Antenna master          INNCO Systems     MAA4640—XP—ET     —                  N/A          —
                                                                  CO3000/951/
  |Z| Antenna master controller INNCO Systems   CO3000            38590616/L         N/A          —

  [X] Turn Table              INNCO Systems     1060              —                  N/A          —
                                                                  CO3000/999/
  |Z| Turn Table controller   INNCO Systems     CO3000            40240317/G         N/A          —

  [X] Low Noise Amplifiee     TESTEK            TK—PA1ISH         170012—L           1 year       03.11.2019
  [X] Horn Antenna            Schwarzbeck       BBHA 9120D        1152               2 year       11.28.2017
  [_] Power Amplifier         TESTEK            TK—PA 1840H       170030—L           1 year       12.17.2018
  _] Horn Antenna             Schwarzbeck       BBHA 9170         BBHA9170#786       2 year       12.05.2017
  _] Antenna master controllee HD GmbH          HD 100            100/637            N/A          —
  |:| Power Amplifier         CERNEX            CBLU118§35340     21691              1 year       06.25.2018
  _] Antenna master           HD GmbH           MA240             240/520            N/A          —
  _] EMI Test Receiver        Rohde & Schwarz   ESU26             100241             1 year       08.14.2018
  _] Turn Table               INNCO Systems     DT3000—3T         DT3000/69          N/A          —
  [X Software                 Rohde & Schwarz   EMC32 VER8.40.0   —                  —            —




F—TP22—03 (Rev.00)                                  7 / 22                               HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                      Report No.: HCT—EM—1904—FCO27


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3. DESCRIPTION OF TEST

3.1 Measurement of Conducted Emission

 The test procedure was in accordance with ANSI C63.4—2014, Clause 7.3

 a. The EUT was placed 0.4 meters from the conducting wall of the shielded room with EUT being
    connected to the power mains through a line impedance stabilization network (LISN).
    If the EUT is connected to the PC through USB, the AC power—line adapter of the PC is directly
    connected to a line impedance stabilization network (LISN).
    Other support units were connected to the power mains through another LISN. The two LISNs provide
    50 Ohm/ 50uH of coupling impedance for the measuring instrument.
 b. Both conducted lines are measured in Quasi—Peak and Average mode, including the worst—case
    data points for each tested configuration.
 c. The frequency range from 150 kHz to 30 MHz was searched.



                                   [ Conducted Emission Limits ]


         Frequency           Resolution Bandwidth          Quasi—Peak                Average
           (MHz)                     (kHz)                  (dB(uV))                 (dB(uV))
      0.15 to 0.5                      9                    66 to 56*                56 to 46*
      0.5 to 5                         9                        56                      46
      5 to 30                          9                        60                      50

 *Decreases with the logarithm of the frequency.




F—TP22—03 (Rev.00)                             8 / 22                              HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                        Report No.: HCT—EM—1904—FCO27


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3.2 Measurement of Radiated Emission

 The test procedure was in accordance with ANSI C63.4—2014, Clause 8.3

 a. The EUT was placed on the top of a turn table 0.8 meters above the ground at a semi—anechoic chamber.
    The table was rotated 360 degrees to determine the position of the highest radiation.
 b. The EUT was set 3 m away from the interference—receiving antenna, which was mounted on
    the top of a variable—height antenna tower.
 c. The antenna height is varied from 1 m to 4 m above the ground to determine the maximum
    value of the field strength. Both horizontal and vertical polarizations of the antenna are set to
    make the measurement.
 d. For each suspected emission, the EUT was arranged to its worst case and then the antenna
    was tuned to heights from 1 m to 4 m and the turn table was turned from 0 degrees to 360
    degrees to find the maximum reading.
 e. The test—receiver system was set to Quasi—Peak detect function and specified bandwidth with
    maximum hold mode when the test frequency is below 1 GHz.
 f. The test—receiver system was set to Peak and Average detect function and specified
   bandwidth with maximum hold mode when the test frequency is above 1 GHz.
 g. Place the measurement antenna away from each area of the EUT determined to be a source of
    emissions at the specified measurement distance, while keeping the measurement antenna aimed
    at the source of emissions at each frequency of significant emissions, with polarization oriented
    for maximum response.(1 GHz to 40 GHz)



                                     [ Radiated Emission Limits ]


        Frequency             Antenna Distance            Field Strength             Quasi—Peak
          (MHz)                      (m)                     (uV/m)                  (dB(uV)/m)
        30 to 88                      3                        100                      40.0
        88 to 216                     3                        150                      43.5
        216 to 960                    3                        200                      46.0
        Above 960                     3                        500                      54.0
        Frequency             Antenna Distance                Peak                    Average
          (MHz)                      (m)                   (dB(uV)/m)                (dB(uV)/m)
       Above 1 000                    3                        74                        54




F—TP22—03 (Rev.00)                               9 / 22                              HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                            Report No.: HCT—EM—1904—FCO27


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3.2.1 Frequency Range of Radiated Measurements

 An unintentional radiator, including a digital device, the spectrum shall be investigated from the lowest
 radio frequency signal generated or used in the device, without going below the lowest frequency for
 which a Radiated Emission limit is specified, up to the frequency shown in the following table

   Highest frequency generated or used in the device
        or on which the device operates or tunes               Upper frequency of measurement range
                                                                                (MHz)
                         (MHz)
                 Below 1.705                                  30
                 1.705 to 108                                 1 009
                 108 to 500                                   2 000
                 500 to 1 000                                 s 000
                 Above 1 000                                  5 harmonic of the highest frequency
                                                              or 40 (Hz, whichever is lower


3.3 Configuration of Tested System




                                         EUT         |__       Travel
                                                              Adaptor




                                                   Earphone

  Non—Conductive Table
  Power Line: 120 VAC, 60 Hz




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 FCC ID: ZNFX420AS8                                                    Report No.: HCT—EM—1904—FCO27


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4. PRELIMINARY TEST

4.1 Conducted Emission
 It was tested the following operating mode, after connecting all peripheral devices.

 Operating Modes:


   [X FRONT CAMERA & MP3 mode
   [X REAR CAMERA & FM RADIO mode
   [X] IDLE mode

   NOTE. The worst—case emissions are reported.




4.2 Radiated Emission
 It was tested the following operating mode, after connecting all peripheral devices.

 Operating Modes:


   [X FRONT CAMERA & MP3 mode
   [X REAR CAMERA & FM RADIO mode
   [X] IDLE mode

   NOTE. The worst—case emissions are reported.




F—TP22—03 (Rev.00)                                11 / 22                        HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                    Report No.: HCT—EM—1904—FCO27


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5. CONDUCTED AND RADIATED EMISSION TEST SUMMARY

5.1 Conducted Emission

The test results of conducted emission at mains ports provide the following information:


   Rule Part / Standard                    FCC PART 15 Subpart B Class B

   Detector                                Quasi—Peak, CISPR—Average

   Bandwidth                               9 kHz (6 dB)

   Operating Mode                          FRONT CAMERA & MP3 mode

   Kind of Test Site                       Shielded Room

   Temperature                             22.9 °C

   Relative Humidity                       43.5 %

   Test Date                               April 17, 2019




    — Calculation Formula:

        1. Conductor L1 = Hot, Conductor N = Neutral
        2. Corr. = LISN Factor + Cable Loss
        3. QuasiPeak or CAverage= Receiver Reading + Corr.
        4. Margin = Limit — QuasiPeak or CAverage




 F—TP22—03 (Rev.00)                            12 / 22                           HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                                                                      Report No.: HCT—EM—1904—FCO27


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Figure 1: Conducted Emission, AC Main Port, Line (L1)



                                                                   FCC CLASS B_Exten Cable


                             90 T


                             so T
            Level in dBu




                             —10      t      t     t——At+—AtA——t——t——#4              t    t        t———tA——{t+——{t—o—t———#{4        t     1
                              150k          300   400 500       800 1M              2M   3M       4M 5M 6            8 10M        20M   30M
                                                                            Frequency in Hz

                           FCC CLASS B_QP                      FCC CLASS B_ AV                        Preview Result 1—PK+
                           Preview Result 2—AVG        X       Final Result 1—QPK             X       Final Result 2—CAV




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 FCC ID: ZNFX420AS8                                                Report No.: HCT—EM—1904—FCO27


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QuasiPeak Final Result, Line (L1)




      Frequency       QuasiPeak     Bandwidth       Line   Corr.       Margin         Limit
        (MHz)          (dBuV)         (kHz)                (dB)          (dB)        (dBuV)


       0.698000          33.4         9.000          L1     9.8          22.6          56.0

       0.744000          33.9         9.000          L1     9.8          22.1          56.0

       0.754000          34.0         9.000          L1     9.8          22.0          56.0

       0.838000          34.2         9.000          L1     9.8          21.8          56.0

       0.844000          33.7         9.000          L1     9.8          22.3          56.0

       0.868000          34.5         9.000          L1     9.8          21.5          56.0

       1.170000          36.0         9.000          L1     9.8          20.0          56.0

       1.176000          36.1         9.000          L1     9.8          19.9          56.0

       1.272000          35.4         9.000          L1     9.9          20.6          56.0

       1.278000          35.3         9.000          L1     9.9          20.7          56.0

       2.086000          35.9         9.000          L1     9.8          20.1          56.0

       2.230000          35.6         9.000          L1     9.9          20.4          56.0

      15.704000          34.9         9.000          L1    10.4          25.1          60.0

      15.816000          35.1         9.000          L1    10.4          24.9          60.0

      15.964000          35.0         9.000          L1    10.4          25.0          60.0

      15.982000          35.1         9.000          L1    10.4          24.9          60.0

      17.704000          36.9         9.000          L1    10.5          23.1          60.0

      17.708000          36.7         9.000          L1    10.5          23.3          60.0




 F—TP22—03 (Rev.00)                             14 / 22                         HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                               Report No.: HCT—EM—1904—FCO27


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CAverage Final Result, Line (L1)




      Frequency       CAverage     Bandwidth       Line   Corr.       Margin          Limit
        (MHz)          (dBuV)        (kHz)                (dB)          (dB)          (dBuV)


       0.698000          23.1        9.000          L1     9.8          22.9           46.0

       0.744000          23.9        9.000          L1     9.8          22.1           46.0

       0.844000          24.1        9.000          L1     9.8          21.9           46.0

       0.880000          25.1        9.000          L1     9.8          20.9           46.0

       0.884000          25.0        9.000          L1     9.8          21.0           46.0

       0.888000          24.9        9.000          L1     9.8          21.1           46.0

       1.170000          26.6        9.000          L1     9.8          19.4           46.0

       1.176000          26.6        9.000          L1     9.8          19.4           46.0

       1.272000          26.1        9.000          L1     9.9          19.9           46.0

       2.086000          27 .1       9.000          L1     9.8          18.9           46.0

       2.142000          217 4       9.000          L1     9.9          18.6           46.0

       2.230000          26.8        9.000          L1     9.9          19.2           46.0

      15.704000          22.8        9.000          L1    10.4          217 .2         50.0

      15.964000          23.2        9.000          L1    10.4          26.8           50.0

      16.506000          23.8        9.000          L1    10.5          26.2           50.0

      16.660000          23.5        9.000          L1    10.5          26.5           50.0

      17.640000          25.3        9.000          L1    10.5          24.17          50.0

      17.922000          23.9        9.000          L1    10.5          26.1           50.0




 F—TP22—03 (Rev.00)                            15 / 22                           HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                                                                      Report No.: HCT—EM—1904—FCO27


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Figure 2: Conducted Emission, AC Main Port, Line (N)



                                                                   FCC CLASS B_Exten Cable


                             90 T


                             so T
            Level in dBu




                             —10      t      t     t——At+—AtA——t——t——#4              t    t        t———tA——{t+——{t—o—t———#{4        t     1
                              150k          300   400 500       800 1M              2M   3M       4M 5M 6            8 10M        20M   30M
                                                                            Frequency in Hz

                           FCC CLASS B_QP                      FCC CLASS B_ AV                        Preview Result 1—PK+
                           Preview Result 2—AVG        X       Final Result 1—QPK             X       Final Result 2—CAV




 F—TP22—03 (Rev.00)                                                         16 / 22                                                HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                               Report No.: HCT—EM—1904—FCO27


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QuasiPeak Final Result, Line (N)




      Frequency       QuasiPeak    Bandwidth       Line   Corr.       Margin         Limit
        (MHz)          (dBuV)        (kHz)                (dB)          (dB)        (dBuV)


       0.788000          31.1        9.000          N      9.9          24.9          56.0

       0.808000          31.6        9.000          N      9.9          24.4          56.0

       0.818000          31.6        9.000          N      9.9          24.4          56.0

       0.822000          31.5        9.000          N      9.9          24.5          56.0

       0.842000          31.1        9.000          N     10.0          24.9          56.0

       0.872000          31.7        9.000          N     10.0          24.3          56.0

       1.144000          32.8        9.000          N     10.0          23.2          56.0

       1.186000          33.0        9.000          N     10.0          23.0          56.0

       1.200000          33.1        9.000          N     10.0          22.9          56.0

       1.302000          32.6        9.000          N     10.0          23.4          56.0

       1.312000          32.5        9.000          N     10.0          23.5          56.0

       1.380000          31.8        9.000          N     10.1          24.2          56.0

      15.376000          30.0        9.000          N     10.7          30.0          60.0

      15.428000          30.0        9.000          N     10.7          30.0          60.0

      15.506000          30.0        9.000          N     10.7          30.0          60.0

      15.594000          29.9        9.000          N     10.7          30.1          60.0

      15.760000          29.6        9.000          N     10.7          30.4          60.0

      16.230000          28.7        9.000          N     10.7          31.3          60.0




 F—TP22—03 (Rev.00)                            17 / 22                         HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                              Report No.: HCT—EM—1904—FCO27


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CAverage Final Result, Line (N)




      Frequency       CAverage    Bandwidth       Line   Corr.       Margin         Limit
        (MHz)          (dBuV)       (kHz)                (dB)          (dB)        (dBuV)


       0.744000          21.4       9.000          N      9.9          24.6         46.0

       0.788000          21.2       9.000          N      9.9          24.8         46.0

       0.810000          22.0       9.000          N      9.9          24.0         46.0

       0.818000          22.0       9.000          N      9.9          24.0         46.0

       0.822000          21.8       9.000          N      9.9          24.2         46.0

       0.872000          22.4       9.000          N     10.0          23.6         46.0

       1.144000          24.1       9.000          N     10.0          21.9         46.0

       1.188000          24.0       9.000          N     10.0          22.0         46.0

       1.312000          23.1       9.000          N     10.0          22.3         46.0

       1.338000          23.5       9.000          N     10.1          22.5         46.0

       2.254000          23.4       9.000          N     10.1          22.6         46.0

       2.264000          23.3       9.000          N     10.1          22.1         46.0

      15.126000          18.5       9.000          N     10.7          31.5          50.0

      15.376000          18.9       9.000          N     10.7          31.1          50.0

      15.594000          18.7       9.000          N     10.7          31.3          50.0

      15.760000          18.4       9.000          N     10.7          31.6          50.0

      16.230000          18.7       9.000          N     10.7          31.3          50.0

      16.696000          19.1       9.000          N     10.7          30.9          50.0




 F—TP22—03 (Rev.00)                           18 / 22                         HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                                               Report No.: HCT—EM—1904—FCO27


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5.2 Radiated Emission

The test results of radiated emission provide the following information:


  For Measurement Below 1 GHz


    Rule Part / Standard                        FCC PART 15 Subpart B Class B
    Detector                                    Quasi—Peak
    Bandwidth                                   120 kHz (6 dB)

    Operating Mode                              FRONT CAMERA & MP3 mode
    Kind of Test Site                           3 m semi anechoic chamber
    Temperature                                 24.7 °C
    Relative Humidity                           44.4 %
    Test Date                                   April 23, 2019




      Frequency         Quasi Peak   Al—lllzgl?ta     POL.          Azimuth   Corr.      Margin       Limit
        (MHz)           (dBuV/m)       (cin]          (H/V)          (deg)    (dB)        (dB)      (dBuV/m)

      30.711730            22.0        191.8              V          343.0    18.3        18.0        40.0

      51.613000            20.6        100.0              V          356.0    19.7        19.4        40.0

      64.999000            16.5        100.0              V          257.0    18.7        23.5        40.0

      114.574000           21.3       225.1               V          105.0    16.8        22.2        43.5

     487.867500            21.2        118.8              H          72.0     24.8        24.8        46.0

      697.332500           25.6        174.8              H          266.0    28.6        20.4        46.0




  — Calculation Formula:

    1. POL. H = Horizontal, POL. V = Vertical
    2. QuasiPeak = Reading (Receiver Reading) + Corr.
    3. Corr. (Correction Factor) = Antenna Factor + Cable Loss
    4. Margin = Limit — QuasiPeak




 F—TP22—03 (Rev.00)                                       19 / 22                           HCT CO.,LTD.


FCC ID: ZNFX420AS8                                                           Report No.: HCT—EM—1904—FCO27


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   HICTGC.LTA




For Measurement Above 1 GHz


  Rule Part / Standard                   FCC PART 15 Subpart B Class B
  Petector                               Peak mode: Peak (RBW: 1 MHz, VBW: 3 MHz)
                                         CISPR—Average mode: Peak (RBW: 1 MHz, VBW: 10 Hz)
  Highest Frequency                      2 480 MHz
  Tested Frequency Range                 1 GHz to 18 GHz

  Operating Mode                         FRONT CAMERA & MP3 mode
  Kind of Test Site                      10 m semi anechoic chamber

  Temperature                            22.9 °C

  Relative Humidity                      42.4 %
  Test Date                              April 21, 2019




     Frequency           Peak     Limit            Margin      Height   POL.        Azimuth      Corr.
      (MHz)           (dBuV/m)   (dBuV/m)           (dB)        (ecm)   (H/V)        (deg)        (dB)
   4719.750800           35.06      74             38.94       209.7     V           190.0       10.2

   6546.775500           40.11      74             33.89       192.4     V           240.0        —3.6

   1077.920200           41.33      74             32.67       224.9     V           339.0        —2.3

   9776.733300           46.06      74             27.94       109.6     V           307.0        1.9

   10394.637800          46.49      74             27.51       211.5     V           173.0        3.8

   11247.118500          49.22      74             24.78       124.7     V           340.0        6.3



     Frequency        CAverage    Limit            Margin      Height   POL.        Azimuth      Corr.
      (MHz)           (dBuV/m)   (dBuV/m)           (dB)        (ecm)   (H/V)        (deg)        (dB)
   4719.750800           22.49      54             31.51       209.7     V           190.0       10.2

   6546.775500           26.96      54             27.04       192.4     V           240.0        —3.6

   1077.920200           28.55      54             25.45       224.9     V           339.0        —2.3

   9776.733300           32.46      54             21.54       109.6     V           307.0        1.9

   10394.637800          33.89      54             20.11       211.5     V           173.0        3.8

   11247.118500          36.29      54             17.71       124.7     V           340.0        6.3


— Calculation Formula:

   1. POL. H = Horizontal, POL. V = Vertical
   2. Peak or CAverage = Reading (Receiver Reading) + Corr.
   3. Corr. (Correction Factor) = Antenna Factor+ Cable Loss —Amplifier Gain
   4. Margin = Limit — Peak or CAverage




F—TP22—03 (Rev.00)                                   20 / 22                           HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                             Report No.: HCT—EM—1904—FCO27


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6. CONCLUSION

The data collected shows that the EUT Type: Portable Handset, FCC ID: ZNFX420AS8,
Model: LM—X420A¥88 complies with §15.107 and §15.109 of the FCC rules.




 F—TP22—03 (Rev.00)                       21 / 22                         HCT CO.,LTD.


 FCC ID: ZNFX420AS8                                 Report No.: HCT—EM—1904—FCO27


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7. APPENDIX A. TEST SETUP PHOTOGRAPHS

                          Please refer to Annex A




F—TP22—03 (Rev.00)               22 / 22                      HCT CO.,LTD.



Document Created: 2019-06-14 17:38:33
Document Modified: 2019-06-14 17:38:33

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