Test report

FCC ID: 2AI4T-XNKF01

Test Report

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FCCID_4467160

                        FCC TEST REPORT
                        FCC ID: 2AI4T-XNKF01
                                   On Behalf of

               Shenzhen Xhorse Electronics Co., Ltd.
                           Universal Smart Key
                    Model No.: XNKF01, XSKF01




Prepared for       : Shenzhen Xhorse Electronics Co., Ltd.
                     2009-2011,Changhong Science and Technology Building, Science Park
Address            : South Twelfth Road, High Tech Science Park,Nanshan District,
                     Shenzhen,China




Prepared By        : Shenzhen Alpha Product Testing Co., Ltd.
                     Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103,
Address            :
                     Shenzhen, Guangdong, China




               Report Number            :   T1881255 06
               Date of Receipt          :   August 09, 2018
               Date of Test             :   August 09, 2018-September 04, 2018
               Date of Report           :   September 29, 2019
               Version Number           :   REV0


                                                           Page 2 of 29                                   Report No.: T1881255 06


                                                                  Contents
1.   General Information ..................................................................................................................... 5
     1.1.     Description of Device (EUT) ...............................................................................5
     1.2.     Accessories of Device (EUT)...............................................................................6
     1.3.     Tested Supporting System Details .......................................................................6
     1.4.     Test Facility ..........................................................................................................6
2.   Summary of test ............................................................................................................................ 7
     2.1.     Summary of test result .........................................................................................7
     2.2.     Block Diagram .....................................................................................................8
     2.3.     Test mode .............................................................................................................8
     2.4.     Test Conditions.....................................................................................................8
     2.5.     Measurement Uncertainty (95% confidence levels, k=2) ....................................8
     2.6.     Test Equipment.....................................................................................................9
3.   Radiation Emission ..................................................................................................................... 10
     3.1.     Radiation Emission Limits(15.209&231) ..........................................................10
     3.2.     Test Setup ...........................................................................................................10
     3.3.     Test Procedure ....................................................................................................12
     3.4.     Test Equipment Setting For emission test. .........................................................12
     3.5.     Test Condition ....................................................................................................12
     3.6.     Test Result ..........................................................................................................12
4.   Power Line Conducted Emission ............................................................................................... 16
     4.1.     Conducted Emission Limits (15.209) ................................................................16
     4.2.     Test Setup ...........................................................................................................16
     4.3.     Test Procedure ....................................................................................................17
     4.4.     Test Results ........................................................................................................17
5.   Occupied bandwidth ................................................................................................................... 18
     5.1.     Test limit.............................................................................................................18
     5.2.     Method of measurement .....................................................................................18
     5.3.     Test Setup ...........................................................................................................18
     5.4.     Test Results ........................................................................................................18
6.   Transmission time ....................................................................................................................... 20
     6.1.     Test limit.............................................................................................................20
     6.2.     Method of measurement .....................................................................................20
     6.3.     Test Setup ...........................................................................................................20
     6.4.     Test Results ........................................................................................................21
7.   Antenna Requirement................................................................................................................. 23
     7.1. Standard Requirement ........................................................................................23
     7.2. Antenna Connected Construction ......................................................................23
     7.3. Result..................................................................................................................23
8.   Test setup photo .......................................................................................................................... 24
9.   Photos of EUT.............................................................................................................................. 25


                                              Page 3 of 29                    Report No.: T1881255 06




                              TEST REPORT DECLARATION
Applicant               :   Shenzhen Xhorse Electronics Co., Ltd.
                            2009-2011,Changhong Science and Technology Building, Science Park South
Address                 :
                            Twelfth Road, High Tech Science Park,Nanshan District, Shenzhen,China
Manufacturer            :   Shenzhen Xhorse Electronics Co., Ltd.
                            2009-2011,Changhong Science and Technology Building, Science Park South
Address                 :
                            Twelfth Road, High Tech Science Park,Nanshan District, Shenzhen,China
EUT Description         :   Universal Smart Key
                            (A)   Model No.          :   XNKF01, XSKF01
                            (B)   Trademark          :


Measurement Standard Used:
FCC Rules and Regulations Part 15 Subpart C Section 15.231
ANSI C63.10-2013


The device described above is tested by Shenzhen Alpha Product Testing Co., Ltd. to determine the maximum
emission levels emanating from the device. The maximum emission levels are compared to the FCC Part 15
Subpart C limits both conducted and radiated emissions. The test results are contained in this test report and
Shenzhen Alpha Product Testing Co., Ltd. is assumed of full responsibility for the accuracy and completeness
of these tests.


After the test, our opinion is that EUT compliance with the requirement of the above standards.


This report applies to above tested sample only. This report shall not be reproduced in parts without written
approval of Shenzhen Alpha Product Testing Co., Ltd.




                                               Reak Yang
Tested by (name + signature)........…..:                                ………………………………….
                                               Project Engineer


                                               Simple Guan
Approved by (name + signature)…....:
                                               Project Manager          ………………………………….


Date of issue…… …………………..:                     September 29, 2019


                                Page 4 of 29                    Report No.: T1881255 06


                                Revision History
Revision       Issue Date                       Revisions                        Revised By
 REV0      September 29, 2019              Initial released Issue              Simple Guan


                                     Page 5 of 29                     Report No.: T1881255 06



 1. General Information

1.1. Description of Device (EUT)

   EUT                : Universal Smart Key

   Model No.          : XNKF01, XSKF01
                        All model’s the function, software and electric circuit are the same,
   DIFF.              : except the model number difference. This report performs the model
                        XNKF01.


   Trade mark         :


   Power supply       : DC 3V from battery

   Operation frequency : 433.92MHz, 315MHz
   Modulation          : ASK



   Antenna Type       : Internal antenna, max gain 0dBi.

   Software version   : V1.0.0
   Hardware version   : V6


                                     Page 6 of 29                Report No.: T1881255 06




1.2. Accessories of Device (EUT)

Accessories1           :     /
Manufacturer           :     /
Model                  :     /
Power supply           :     /


1.3. Tested Supporting System Details

                                                                                 Certification or
 No.     Description       Manufacturer       Model         Serial Number
                                                                                      DOC
   /           /                 /                  /               /                    /

1.4. Test Facility

Shenzhen Alpha Product Testing Co., Ltd
Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103,
Shenzhen, Guangdong, China

June 21, 2018 File on Federal Communication Commission
Registration Number: 293961
July 15, 2019 Certificated by IC
Registration Number: CN0085


                                 Page 7 of 29               Report No.: T1881255 06



 2. Summary of test

2.1. Summary of test result

      Description of Test Item                  Standard            Results

  Spurious Emission                 Section 15.231&15.209               PASS


  Conduction Emission               Section 15.207                      N/A


 Occupied bandwidth                 Section 15.231                      PASS


  Transmission time                 Section 15.231                      PASS


  Band Edge                         Section 15.231                      N/A


  Antenna Requirement               Section 15.203                      PASS


 Note :Test according to ANSI C63.10-2013


                                      Page 8 of 29                 Report No.: T1881255 06



2.2. Block Diagram
    1. For radiated emissions test: EUT was placed on a turn table, which is 0.8 meters
        high above ground for below 1 GHz test and 1.5 meters high above ground for
        below 1 GHz test . EUT was set into test mode before test. New battery is used
        during all test

                                           EUT



2.3. Test mode
       EUT work in Continuous TX mode, and select test channel, wireless mode
      Tested mode, channel, and data rate information
                                                                       Frequency
             Mode                        Channel
                                                                         (MHz)
                                           CH1                           433.92
             ASK
                                           CH2                            315


2.4. Test Conditions

     Temperature range       21-25℃
     Humidity range          40-75%
     Pressure range          86-106kPa



2.5. Measurement Uncertainty (95% confidence levels, k=2)

                             Item                             MU             Remark
     Uncertainty for Power point Conducted Emissions Test    2.71dB
     Uncertainty for Radiation Emission test in 3m chamber   3.90 dB       Polarize: V
                       (30MHz to 1GHz)                       3.92dB        Polarize: H
     Uncertainty for Radiation Emission test in 3m chamber   4.26 dB       Polarize: H
                       (1GHz to 25GHz)                       4.28 dB       Polarize: V
             Uncertainty for conducted RF Power              0.16dB


                                  Page 9 of 29                 Report No.: T1881255 06




2.6. Test Equipment

    Equipment       Manufacture     Model No.     Serial No.      Last Cal. Cal Interval

3m Semi-Anechoic ETS-LINDGREN N/A                SEL0017                         1Year
                                                                  2018.09.29

Spectrum analyzer Agilent         E4407B         MY49510055                      1Year
                                                                  2018.09.29

Receiver          R&S             ESCI           101165                          1Year
                                                                  2018.09.29

Bilog Antenna     SCHWARZBECK VULB 9168          9168-438                        2Year
                                                                  2018.09.30

Horn Antenna      SCHWARZBECK BBHA 9120 D BBHA 9120                              2Year
                                                                  2018.09.30
                                          D(1201)
Active Loop       Beijing Daze ZN30900A   SEL0097                                1Year
                                                                  2018.09.29
Antenna
Cable             Resenberger SUCOFLEX           MY6562/4                        1Year
                                                                  2018.09.29
                              104
Cable             Resenberger SUCOFLEX           309972/4                        1Year
                                                                  2018.09.29
                              104
Cable             Resenberger SUCOFLEX           329112/4                        1Year
                                                                  2018.09.29
                              104
Pre-amplifier     SCHWARZBECK BBV9743            9743-019                        1Year
                                                                  2018.09.29

Pre-amplifier     Quietek         AP-180C        CHM-0602012                     1Year
                                                                  2018.09.29


                                Page 10 of 29               Report No.: T1881255 06


 3. Radiation Emission

3.1. Radiation Emission Limits(15.209&231)

        Frequency                         Field Strength
          (MHz)                    Limits at 3 metres (watts, e.i.r.p.)
                            uV/m               dB uV/m               Measurement
                                                                      distance(m)
         0.009-0.490     2400/F(kHz)             XX                       300

         0.490-1.705     24000/F(kHz)             XX                     30

          1.705-30           30                   29.5                   30

            30~88         100(3nW)                 40                     3

           88~216        150(6.8nW)               43.5                    3

          216~960         200(12nW)                46                     3

          Above960        500(75nW)                54                     3

            Carrier                             75.6(AV)                  3
          frequency
            Carrier                             95.6(PK)                  3
          frequency

      NOTE:
      a) The tighter limit applies at the band edges.
      b) Emission Level(dB uV/m)=20log Emission Level(Uv/m)


3.2. Test Setup


    See the next page.


        Page 11 of 29         Report No.: T1881255 06




     Below 30MHz Test Setup




     Above 30MHz Test Setup




Above 1GHz Test Setup


                                   Page 12 of 29               Report No.: T1881255 06


3.3. Test Procedure


a) The EUT was placed on a non-metallic table, 80 cm above the ground plane inside a
   semi-anechoic chamber for below 1GHz and 150 cm above the ground plane inside a
   semi-anechoic chamber for above 1GHz. The table was rotated 360 degrees to
   determine the position of the highest radiation.
b) The Test antenna shall vary between 1m and 4m,Both Horizontal and Vertical
   antenna are set ot make measurement.
c) The initial step in collecting conducted emission data is a spectrum analyzer Peak
   detector mode pre-scanning the measurement frequency range. Significent Peaks are
   then marked. and then Qusia Peak Detector mode remeasured
d) If Peak value comply with QP limit Below 1GHz.The EUT deemed to comply with
   QP limit. But the Peak value and average value both need to comply with applicable
   limit above 1GHz.
e) For the actual test configuration, please see the test setup photo.



3.4. Test Equipment Setting For emission test.
    9KHz~150KHz         RBW 200Hz          VBW1KHz
    150KHz~30MHz        RBW 9KHz           VBW 30KHz
    30MHz~1GHz          RBW 120KHz         VBW 300KHz
    Above 1GHz          RBW 1MHz            VBW 3MHz


3.5. Test Condition
    Continual Transmitting in maximum power(The new battery be used during Test)


3.6. Test Result
    We have scanned the 10th harmonic from 9KHz to the EUT.
    Detailed information please see the following page.

    From 9KHz to 30MHz: Conclusion: PASS

    Note: The amplitude of spurious emissions which are
    attenuated by more than 20dB below the permissible value has
    no need to be reported.


                                 Page 13 of 29              Report No.: T1881255 06



Notes: 1 --Means other frequency and mode comply with standard requirements and at
       least have 20dB margin.
         Correct Factor=Cable Loss+Antenna Factor-Amplifier Gain
         Measurement Result=Reading + Correct Factor
         Margin=Measurement Result-Limit
     2 –Spectrum setting:
         a. Peak setting 30MHz-1GHz, RBW=100KHz, VBW=300KHz.
     3- PK measure result values is less than the AVG limit values, so AV measure
        result values test not applicable.


                                           Page 14 of 29                           Report No.: T1881255 06


Radiated Emissions Result of Inside band
 EUT                  Universal Smart Key               Model Name                         XNKF01
 Temperature          24oC                              Relative Humidity                  56%

 Pressure             960hPa                            Test voltage                       DC 3V from battery

 Test Mode            TX 433.92MHz                      Test by                            Ella Liang


                                        Channel (433.92MHz Below 1GHz)
 Fre.     Plority   Reading    Antenna     Cable       Amplifier Correct        Measure          Limit        Margin
                     dBuV      Factor       Loss         Gain          Factor    Result       dBuV/m            dB
 MHz       H/V                   dB         dB           dB              dB      dBuV/m
433.92      H        85.55      15.58       0.67        27.22          -10.97     74.58      100.8      PK    -26.22
433.92      H         --         ---         --           --             --         --       80.8       AV      --
867.84      H        47.56      21.26       0.67        27.22           -5.29     42.27      80.8       PK    -38.53
867.84      H         --         ---         --           --             --         --       60.8       AV      --
157.01      H        30.27      22.1        0.67        27.22           -4.45     25.82       46        PK    -20.18
672.84      H        30.65      20.64       0.67        27.22           -5.91     24.74       46        AV    -21.26


433.92      V        86.85      15.58       0.67        27.22          -10.97     75.88      100.8      PK    -24.92
  --        V         --         ---         --           --             --         --       80.8       AV      --
867.84      V        48.24      21.26       0.67        27.22           -5.29     42.95      80.8       PK    -37.85
  --        V         --         ---         --           --             --         --       60.8       AV      --
301.43      V        31.16      22.1        0.67        27.22           -4.45     26.71       46        PK    -19.29
501.18      V        31.10      20.64       0.67        27.22           -5.91     25.19       46        AV    -20.81


                                        Channel (433.92MHz Above 1GHz)
                     Peak        AV                                               Peak
  Freq. Ant. Pol                            Ant. / CL          Actual Fs                      Margin
                    Reading    Reading                                           Limit                       Remark
 (MHz)     H/V                              CF (dB)              Peak                            (dB)
                     (dBuV)    (dBuV)                          (dBuV/m)         (dBuV/m)
1301.76     V        56.40       ---         -10.41             45.99             74           -28.01          Peak
  --        V         --         ---              --              --              54               --           --

1301.76     H        56.46       ---         -10.41             46.05             74           -27.95          Peak
  --        H         --         ---              --              --             54.00             --           --


                                            Page 15 of 29                       Report No.: T1881255 06



EUT                   Universal Smart Key             Model Name                        XNKF01
                        o
Temperature           24 C                            Relative Humidity                 56%

Pressure              960hPa                          Test voltage                      DC 3V from battery

Test Mode             TX 315MHz                       Test by                           Ella Liang


                                          Channel (315MHz Below 1GHz)
Fre.Plority Reading            Antenna Cable Amplifier Correct Measure                    Limit Margin Remark
             dBuV               Factor Loss   Gain     Factor   Result                   dBuV/m  dB
MHz H/V                          dB     dB     dB        dB    dBuV/m
315      H         85.49         13.19      0.67      27.22         -13.36    72.13        75.6        -3.47   Peak
630      H         52.10         18.12      0.67      27.22         -8.43     43.67        55.6       -11.93   Peak
945      H         52.72         22.1       0.67      27.22         -4.45     48.27        55.6        -7.33   Peak

315      V         78.99         13.19      0.67      27.22         -13.36    65.63        75.6        -9.97   Peak
630      V         45.99         18.12      0.67      27.22         -8.43     37.56        55.6       -18.04 Peak
945      V         52.58         22.1       0.67      27.22         -4.45     48.13        55.6        -7.47   Peak

                                          Channel (315MHz Above 1GHz)
 Freq.     Ant. Pol     Peak        AV      Ant. / CL                          Peak           Margin
                                                              Actual Fs
 (MHz)       H/V       Reading    Reading      CF                             Limit            (dB)
                                                                                                          Remark
                                                           Peak
                       (dBuV)      (dBuV)     (dB)                           (dBuV/m)
                                                         (dBuV/m)
 1250        V         52.88        ---      -10.01         42.87              74             -31.13           Peak
  --         V           --         ---        --             --                --              --              --

 1250        H         51.45        ---       -10.0         41.45              74             -32.55           Peak
  --         H           --         ---         --             --               --              --              --


                                      Page 16 of 29                 Report No.: T1881255 06



 4. Power Line Conducted Emission

4.1.   Conducted Emission Limits (15.209)


                Frequency                               Limits dB(μV)
                    MHz                  Quasi-peak Level               Average Level
                 0.15 -0.50                   66 -56*                     56 - 46*
                 0.50 -5.00                     56                           46
                5.00 -30.00                     60                           50

 Notes: 1. *Decreasing linearly with logarithm of frequency.
        2. The lower limit shall apply at the transition frequencies.

        3.The limit decreases in line with the logarithm of the frequency in the rang of
          0.15 to 0.50 MHz.




4.2.   Test Setup


                                       Page 17 of 29            Report No.: T1881255 06



4.3. Test Procedure

      The EUT is put on the plane 0.8m high above the ground by insulating support
      and is connected to the power mains through a line impedance stabilization
      network (L.I.S.N.). This provides a 50ohm coupling impedance for the EUT
      system. Please refer the block diagram of the test setup and photographs. Both
      sides of AC lines are checked to find out the maximum conducted emission. In
      order to find the maximum emission levels, the relative positions of equipment
      and all of the interface cables shall be changed according to ANSI C63.10-2013
      on Conducted Emission Measurement.
      The bandwidth of test receiver (R & S ESCI) is set at 9 kHz.

4.4. Test Results

     EUT power supply by battery, so the test not applicable.


                                   Page 18 of 29                 Report No.: T1881255 06


 5. Occupied bandwidth
5.1. Test limit

     Please refer section RSS-210 & 15.231
 According to§15.231(C), The bandwidth of the emission shall be no wider than 0.25%
 of the center frequency for devices operating above 70MHz and below 900MHz.

5.2. Method of measurement

    a)The bandwidth is measured at an amplitude level reduced 20dB from the reference
       level. The reference level is the level of the highest amplitude signal observed
       from the transmitter at the fundamental frequency. Once the reference level is
       established, the equipment is conditioned with typical modulating signal to
       produce the worst-case (i.e. the widest) bandwidth.
    b)The test receiver RBW set 30KHz,VBW set 30KHz,Sweep time set auto.


5.3. Test Setup


                             Spectrum
            EUT              Analyzer


5.4. Test Results

                     Freq        20dB Bandwidth        99%          Limit
        Mode                                                                  Conclusion
                    (MHz)            (KHz)           Bandwidth      (kHz)
        ASK         433.92              517.3             /         1084.8       PASS
        ASK         315.00              528.2             /          787.5       PASS

    Note: Limit = 433.92MHz *0.25% = 1084.8 kHz
         Limit = 315MHz *0.25% = 787.5 kHz


Page 19 of 29   Report No.: T1881255 06


                                       Page 20 of 29                   Report No.: T1881255 06




 6. Transmission time
6.1. Test limit

     Please refer sectionRSS-210 & 15.231
     According to §15.231(a)(1), A manually operated transmitter shall employ a switch that will
     automatically deactivate the transmitter within not more than 5 seconds of being released.



6.2. Method of measurement

6.2.1. Place the EUT on the table and set it in transmitting mode.

6.2.2. Remove the antenna from the EUT and then connect a low loss RF cable from the
       antenna port to the spectrum analyzer.

6.2.3. Set spectrum analyzer Center= 433.92MHz, Span = 0MHz, Sweep = 10s.

6.2.4. Set the spectrum analyzer as RBW, VBW=100kHz,

6.2.5. Max hold, view and count how many channel in the band.

6.3. Test Setup


                               Spectrum
              EUT              Analyzer


                     Page 21 of 29       Report No.: T1881255 06


6.4. Test Results

              Freq
                     Test Result(s)   Limit (s)       Conclusion
             (MHz)

            433.92        0.18          < 5s             PASS

            315.00        0.19          < 5s             PASS


Agilent Spectrum Analyzer — Swept SA
 onfint.ceie en t                                                                                    =
Center Freq 315.000000 MHz Avg Type: Log.Pur                                                            n
                                           5 Trig:Free Run   AvglHold: 81100                       e
                                             Aten: 6 dB
               Ref Offset 10 dB
               Loode c

                                                                                                     CenterFreq
                               X                                                                   215.000000 MHz




Center 315.000000 MHz                                                                Span 0 Hz
Mss                                    VBW 300 kHz                      Sweep 10.00 s (1001 pts)
use                                                                       stams


                                    Page 23 of 29                 Report No.: T1881255 06




 7. Antenna Requirement

7.1. Standard Requirement

      An intentional radiator shall be designed to ensure that no antenna other than that
      furnished by the responsible party shall be used with the device. The use of a
      permanently attached antenna or of an antenna that uses a unique coupling to the
      intentional radiator shall be considered sufficient to comply with the provisions of
      this Section. The manufacturer may design the unit so that a broken antenna can
      be replaced by the user, but the use of a standard antenna jack or electrical
      connector is prohibited.

7.2. Antenna Connected Construction

      The directional gains of antenna used for transmitting is 0 dBi, and the antenna
      connector is de- signed with permanent attachment and no consideration of
      replacement. Please see EUT photo for details.

7.3. Result

      The EUT antenna is Internal antenna. It comply with the standard requirement.


                              Page 24 of 29   Report No.: T1881255 06



 8. Test setup photo

Photos of Radiated emission


                     Page 25 of 29   Report No.: T1881255 06




9. Photos of EUT


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Page 26 of 29   Report No.: T1881255 06




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Page 27 of 29   Report No.: T1881255 06


           Page 28 of 29   Report No.: T1881255 06




   —




mumpiing


         Page 29 of 29             Report No.: T1881255 06




---------END OF THE REPORT——————



Document Created: 2019-09-29 18:57:29
Document Modified: 2019-09-29 18:57:29

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