Test reports

FCC ID: 2AFOSWT1231H-433

Test Report

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FCCID_4222181

                                  Page 1 of 21                Report No.: HA1810191388-E




                         FCC TEST REPORT


                                     Test report
                                    On Behalf of
                       WIRELESS-TAG TECHNOLOGY CO., LIMITED
                                         For
                                     RF module
                             Model No.: WT1231H, WT1231

                                  FCC ID: 2AFOSWT1231H-433




 Prepared for :   WIRELESS-TAG TECHNOLOGY CO., LIMITED
                  Room 115-118, Building A, Chengshishanhai Center, No. 11, Zhongxing Road,
                  Bantian Sub-District, Longgang district, Shenzhen, PRC 518000.




 Prepared By :    Shenzhen HUAK Testing Technology Co., Ltd.
                  1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street,
                  Bao'an District, Shenzhen City, China




Date of Test:     Oct. 25, 2018 ~ Oct. 31, 2018
Date of Report:   Oct. 31, 2018
Report Number:    HK1810191388-E


                                                        Page 2 of 21                           Report No.: HA1810191388-E


                                          TEST RESULT CERTIFICATION

Applicant’s name ..................: WIRELESS-TAG TECHNOLOGY CO., LIMITED
                                            Room 115-118, Building A, Chengshishanhai Center, No. 11,
Address ..................................: Zhongxing Road, Bantian Sub-District, Longgang district,
                                            Shenzhen, PRC 518000.

Manufacture's Name.............: WIRELESS-TAG TECHNOLOGY CO., LIMITED

                                            Room 115-118, Building A, Chengshishanhai Center, No. 11,
Address ..................................: Zhongxing Road, Bantian Sub-District, Longgang district,
                                            Shenzhen, PRC 518000.
Product description
Trade Mark:                                     N/A
Product name ........................... : RF module
Model and/or type reference .: WT1231H, WT1231
                                                FCC Part15 Subpart C 2017, Section 15.231
Standards ..............................:
                                                ANSI C63.10: 2013
This publication may be reproduced in whole or in part for non-commercial purposes as long as the
Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of
the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not
assume liability for damages resulting from the reader's interpretation of the reproduced material
due to its placement and context.
Date of Test ............................................ :
Date (s) of performance of tests ............. :                   Oct. 25, 2018 ~ Oct. 31, 2018
Date of Issue........................................... :         Oct. 31, 2018
Test Result .............................................. :       Pass




                           Testing Engineer                    :


                                                                               (Gary Qian)

                           Technical Manager                   :

                                                                                   (Eden Hu)


                           Authorized Signatory :


                                                                               (Jason Zhou)


                                                                 Page 3 of 21                                       Report No.: HA1810191388-E




                                                                    Contents
1 . TEST SUMMARY ............................................................................................................................................... 4
     1.1 TEST FACILITY ......................................................................................................................................... 4
     1.2 TEST FACILITY ......................................................................................................................................... 4
     1.3 MEASUREMENT UNCERTAINTY ......................................................................................................... 4
2. General Information ............................................................................................................................................ 5
     2.1. Description of Device (EUT) ................................................................................................................... 5
     2.2. DESCRIPTION OF TEST SETUP......................................................................................................... 6
     2.3. List of channels ........................................................................................................................................ 6
     2.5. Test Equipment List ................................................................................................................................. 7
3. Conducted Emission Test .................................................................................................................................. 8
     3.1 Conducted Power Line Emission Limit .................................................................................................. 8
     3.2 Test Setup .................................................................................................................................................. 8
     3.3 Test Procedure .......................................................................................................................................... 8
     3.4 Test Data .................................................................................................................................................... 8
4. Radiated Emissions ............................................................................................................................................ 9
     4.1. Standard Applicable................................................................................................................................. 9
     4.2. Test Procedure ......................................................................................................................................... 9
     4.3. Corrected Amplitude & Margin Calculation ........................................................................................ 11
     4.4. Environmental Conditions ..................................................................................................................... 11
     4.5. Test Data ................................................................................................................................................. 11
5. 20DB Occupy Bandwidth Test ......................................................................................................................... 14
     5.1. Standard Applicable............................................................................................................................... 14
     5.2. Test Procedure ....................................................................................................................................... 14
     5.4. Test Data ................................................................................................................................................. 14
6. Transmission Time ............................................................................................................................................ 15
     6.1. Standard Applicable............................................................................................................................... 15
     6.2. Test Procedure ....................................................................................................................................... 15
     6.3. Environmental Conditions ..................................................................................................................... 15
     6.4. Test Data ................................................................................................................................................. 15
7. Duty Cycle .......................................................................................................................................................... 17
     7.1. Standard Applicable............................................................................................................................... 17
     7.2. Test Procedure ....................................................................................................................................... 17
     7.4. INTRODUCTION TO PDCF reference: .............................................................................................. 17
     7.5. Test Data ................................................................................................................................................. 18
8. Antenna Connected Construction ................................................................................................................... 20
9. PHOTOGRAPH OF TEST ............................................................................................................................... 21


                                      Page 4 of 21                Report No.: HA1810191388-E



1. TEST SUMMARY

 1.1 TEST FACILITY


   Standard Section                 Test Item                                       Result

   15.203                           Antenna Requirement                                PASS

   15.207                           Conducted Emission                                 N/A

   15.205/15.209/15.231(b)          Spurious Emission                                  PASS

   15.231(c)                        20dB Occupied Bandwidth                            PASS

   15.231(a)                        Deactivation Testing                               PASS

   Remark: “N/A” is an abbreviation for Not Applicable.


 1.2 TEST FACILITY

 Test Firm          : Shenzhen HUAK Testing Technology Co., Ltd.


 Address               1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai
                       Street, Bao'an District, Shenzhen City, China




 1.3 MEASUREMENT UNCERTAINTY


  Measurement uncertainty
                 Parameter                           Conditions          Uncertainty
               Occupied Bandwidth                    Conducted               ±1.5%
         Conducted Spurious Emission                 Conducted              ±2.17dB
                Transmission Time                    Conducted                ±5%
               Conducted Emissions                   Conducted              ±2.88dB
        Transmitter Spurious Emissions               Radiated                ±5.1dB


                                         Page 5 of 21                  Report No.: HA1810191388-E



2. General Information
2.1. Description of Device (EUT)
Product Name         :   RF module
Model No.            :   WT1231H
Serial No            :   WT1231
                         All model’s the function, software and electric circuit are the
Model Difference     :   same, only different in the model name.
                         Test sample model: WT1231H.
Trade Mark           :   N/A
Test Power Supply    :   DC 3.3V
                         Operation Frequency:           433MHz
                         Number of Channel:             1 Channels
Product
                     :   Modulation Type:               FSK
Description
                         Antenna Type:                  External Antenna
                         Antenna Gain(Peak):            0 dbi
Remark: 1)For a more detailed features description, please refer to the manufacturer’s specifications
           or the User’s Manual.


                                       Page 6 of 21           Report No.: HA1810191388-E


2.2. DESCRIPTION OF TEST SETUP



   Operation of EUT during Radiation and Above1GHz Radiation testing:




                             Battery             EUT




2.3. List of channels
                                               Freq.             Note
                  Channel
                                              (MHz)        (Modulation Type)
                        01                     433               GFSK


                                    Page 7 of 21              Report No.: HA1810191388-E


2.5. Test Equipment List
                                                                                        Cal.
Item      Equipment         Manufacturer     Model No.   Serial No.     Last Cal.
                                                                                      Interval
            L.I.S.N.
 1.     Artificial Mains        R&S           ENV216     HKE-002      Dec. 28, 2017 1 Year
           Network
 2.        Receiver             R&S            ESCI 7    HKE-010      Dec. 28, 2017 1 Year
         RF automatic
 3.                           Tonscend        JS0806-2   HKE-060      Dec. 28, 2017 1 Year
          control unit
 4.    Spectrum analyzer        R&S            FSP40     HKE-025      Dec. 28, 2017 1 Year
 5.    Spectrum analyzer       Agilent        N9020A     HKE-048      Dec. 28, 2017 1 Year
 6.       Preamplifier      Schwarzbeck      BBV 9743    HKE-006      Dec. 28, 2017 1 Year
 7.    EMI Test Receiver   Rohde & Schwarz     ESCI 7    HKE-010      Dec. 28, 2017 1 Year
       Bilog Broadband
 8.                         Schwarzbeck      VULB9163    HKE-012      Dec. 28, 2017 1 Year
           Antenna
                                             FMZB 1519
 9.      Loop Antenna        Schwarzbeck                 HKE-014      Dec. 28, 2017 1 Year
                                                B
 10.     Horn Antenna       Schewarzbeck       9120D     HKE-013      Dec. 28, 2017 1 Year
                                             EMC051845
 11.     Pre-amplifier          EMCI                     HKE-015      Dec. 28, 2017 1 Year
                                                SE
 12.     Pre-amplifier         Agilent        83051A     HKE-016      Dec. 28, 2017 1 Year
       EMI Test Software                      JS1120-B
 13.                          Tonscend                   HKE-083      Dec. 28, 2017    N/A
           EZ-EMC                              Version
 14.     Power Sensor          Agilent        E9300A     HKE-086      Dec. 28, 2017 1 Year
 15.   Spectrum analyzer       Agilent        N9020A     HKE-048      Dec. 28, 2017 1 Year
 16.    Signal generator       Agilent        N5182A     HKE-029      Dec. 28, 2017 1 Year
 17.   Signal Generator        Agilent        83630A     HKE-028      Dec. 28, 2017 1 Year
 18.    Shielded room        Shiel Hong        4*3*3     HKE-039      Dec. 28, 2017 3 Year


                                        Page 8 of 21                    Report No.: HA1810191388-E



3. Conducted Emission Test
3.1 Conducted Power Line Emission Limit
   For unintentional device, according to § 15.107(a) Line Conducted Emission Limits is as following




   * Decreasing linearly with the logarithm of the frequency
     For intentional device, according to §15.207(a) Line Conducted Emission Limit is same as above table.

3.2 Test Setup




3.3 Test Procedure
   1, The equipment was set up as per the test configuration to simulate typical actual usage per the user’s
      manual. The EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is
      placed on the ground plane as per ANSI C63.10.
   2, Support equipment, if needed, was placed as per ANSI C63.10.
   3, All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10.
   4, If a EUT received DC power from the USB Port of Notebook PC, the PC’s adapter received
      AC120V/60Hz power through a Line Impedance Stabilization Network (LISN) which supplied power
      source and was grounded to the ground plane.
   5, All support equipments received AC power from a second LISN, if any.
   6, The EUT test program was started. Emissions were measured on each current carrying line of the EUT
      using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two
      monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1
      connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1
      connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver.
   7, Analyzer / Receiver scanned from 150 KHz to 30MHz for emissions in each of the test modes.

3.4 Test Data

    Not applicable for device which is battery supply.


                                        Page 9 of 21                    Report No.: HA1810191388-E



4. Radiated Emissions
4.1. Standard Applicable
According to §15.231(b), the field strength of emissions from intentional radiators operated under this
section shall not exceed the following:




The limits on the field strength of the spurious emissions in the above table are based on the
fundamental frequency of the intentional radiator. Spurious emissions shall be attenuated to the average
(or, alternatively, CISPR quasi-peak) limits shown in this table or to the general limits shown in §15.209,
whichever limit permits a higher field strength.

The emission limit in this paragraph is based on measurement instrumentation employing an average
detector. The provisions in §15.35 for limiting peak emissions apply. Spurious Radiated Emissions
measurements starting below or at the lowest crystal frequency.

Compliance with the provisions of §15.205 shall be demonstrated using the measurement
instrumentation specified in that section.


4.2. Test Procedure
The setup of EUT is according with per ANSI C63.10-2013 measurement procedure. The specification
used was with the FCC Part 15.205 15.231(b) and FCC Part 15.209 Limit.


Page 10 of 21   Report No.: HA1810191388-E


                                              Page 11 of 21                         Report No.: HA1810191388-E



4.3. Corrected Amplitude & Margin Calculation
The Corrected Amplitude is calculated by adding the Antenna Factor and the Cable Factor, and subtracting the Amplifier
Gain from the Amplitude reading. The basic equation is as follows:


                          Corr. Ampl. = Indicated Reading +Ant.Loss +Cab. Loss – Ampl.Gain


The “Margin” column of the following data tables indicates the degree of compliance with the applicable limit.For example,
a margin of -6dB V means the emission is 6dB V below the maximum limit. The equation for margin calculation is as
follows:


                                       Margin = Corr. Ampl. – FCC Part15C Limit




4.4. Environmental Conditions

    Temperature:                      21℃

    Relative Humidity:                50%

    ATM Pressure:                     1011 mbar



4.5. Test Data
According to the data below, the FCC Part 15.205, 15.209 and 15.231 standards, and had the worst margin of:


Note: this EUT was tested in 3 orthogonal positions and the worst case position data was reported.


                                            Page 12 of 21                  Report No.: HA1810191388-E




Horizontal

No. Frequency Reading     Corr.    Duty cycle     Result     Limit   Margin     Deg.   Height   Remark

                          Factor     Factor
           MHz   dBuV/m                          dBuV/m     dBuV/m    dB         (°)    (cm)
                           (dB)       (dB)

 1    433.0015    66.91   12.33       N/A         79.24      100.8   -21.56     177      100     peak

      433.0000      /       /        -6.02        73.22      80.8    -7.58      42       300     Ave

 2    866.0037    23.92   15.82       N/A         39.74      60.8    -21.06     64       100     QP




Vertical

No. Frequency Reading     Corr.    Duty cycle     Result     Limit   Margin     Deg.   Height   Remark

                          Factor     Factor
           MHz   dBuV/m                          dBuV/m     dBuV/m    dB         (°)    (cm)
                           (dB)       (dB)

 1    433.0015    67.24   12.23       N/A         79.47      100.8   -21.33     117      300     peak

      433.0000      /       /        -6.02        73.45      80.8    -7.35      45       100     Ave

 2    866.0154    24.71   16.26       N/A         40.97      60.8    -19.83     36       200     QP


                                              Page 13 of 21                       Report No.: HA1810191388-E



Above 1GHz
Horizontal

No. Frequency Reading       Corr.    Duty cycle     Result     Limit        Margin      Deg.    Height     Remark

                            Factor     Factor
           MHz     dBuV/m                          dBuV/m     dBuV/m         dB          (°)        (cm)
                             (dB)       (dB)

 1     1302.2       23.51   25.83       N/A         49.34       74          -24.66      41          100     Peak

       1302.2         /          /      -6.02       43.32       54          -10.68      306         100     Ave

 2     1736.3       22.13   27.25       N/A         49.38       74          -24.62      204         100     Peak

       1736.3         /          /      -6.02       43.36       54          -10.64      87          100     Ave

Vertical

No. Frequency Reading       Corr.    Duty cycle     Result     Limit        Margin      Deg.    Height     Remark

                            Factor     Factor
           MHz     dBuV/m                          dBuV/m     dBuV/m         dB          (°)        (cm)
                             (dB)       (dB)

 1     1302.2       28.71   25.83       N/A         54.54       74          -19.46      151         100     Peak

       1302.2         /          /      -6.02       48.52       54          -5.48       74          100     Ave

 2     1736.3       25.43   27.25       N/A         52.68       74          -21.32      332         100     Peak

       1736.3         /          /      -6.02       46.66       54          -7.34       51          100     Ave



Note: Testing is carried out with frequency rang 30MHz to the tenth harmonics, which above 5th
Harmonics are attenuated more than 20dB below the permissible limits or the field strength is too small
to be measured.
      The fundamental frequency is 433MHz, so the fundamental and spurious emissions radiated limit
base on the the operating frequency 433MHz.

Frequency Range (9 kHz-30MHz)

     Frequency
                                     Level@3m (dBμV/m                             Limit@3m (dBμV/m)
           (MHz)

       --                   --                          --             --                      --

       --                   --                          --             --                      --

       --                   --                          --             --                      --



Note: 1. Emission Level=Reading+ Cable loss-Antenna factor-Amp factor
2. The emission levels are 20 dB below the limit value, which are not reported. It is deemed to comply
with the requirement.


                                          Pag
                                            ge 14 of 21                Reporrt No.: HA18
                                                                                       810191388-E



5. 20DB Occ
          cupy Ba
                andwidtth Test
5.1. Sta
       andard Ap
               pplicable
Accordin ng to FCC Part
                   P 15.231(cc), The band  dwidth of the
                                                       e emission shall
                                                                  s     be no w
                                                                              wider than 0.25%
                                                                                         0     of the
                                                                                                    e
center frrequency for devices op
                               perating abo
                                          ove 70 MHz and below 9009 MHz. Ba   andwidth is determined at
the poin
       nts 20 dB down from the e modulated carrier.




5.2. Test Proced
               dure
With the
       e EUT’s ante
                  enna attacheed, the EUT
                                        T’s 20dB Ban ndwidth pow          eived by the test antenn
                                                               wer was rece                      na,
which was
      w connecte  ed to the spe
                              ectrum analyzer with the
                                                     e START, and STOP freequencies set
                                                                                     s to the
EUT’sopperation ban
                  nd.



  Temp
     perature:             21℃

  Relative Humidityy:      52%

  ATM Pressure:
      P                    1011 mbar
                                m




5.4. Test Data


          Freq.                                                    Limit
                        Modulation
                                 n Type     B
                                            Bandwidth (k
                                                       kHz)                         Resu
                                                                                       ults
         (MHz)                                                     (kHz)
          433               GFSK
                               K                 0.249            <1082.5            PAS
                                                                                       SS


                                          Page 15 of 21                   Report No.: HA1810191388-E



 6. Transmission Time
 6.1. Standard Applicable


 According to FCC Part 15.231(a), the transmitter shall be complied the following requirements:

 (1) A manually operated transmitter shall employ a switch that will automatically deactivate the
 transmitter within not more than 5 seconds of being released.

 (2) A transmitter activated automatically shall cease transmission within 5 seconds after activation.

 (3) Periodic transmissions at regular predetermined intervals are not permitted. However, polling or
 supervision transmissions, including data, to determine system integrity of transmitters used in security
 or safety applications are allowed if the total duration of transmissions does not exceed more than two
 seconds per hour for each transmitter. There is no limit on the number of individual transmissions,
 provided the total transmission time does not exceed two seconds per hour.


 6.2. Test Procedure
 With the EUT’s antenna attached, the EUT’s output signal was received by the test antenna, which was
 connected to the spectrum analyzer. Set the center frequency to 433MHz, than set the spectrum
 analyzer to Zero Span for the release time reading. During the testing, the switch was released then the
 EUT automatically deactivated.


 6.3. Environmental Conditions

   Temperature:           20℃

   Relative Humidity:     52%

   ATM Pressure:          1011 mbar



 6.4. Test Data


Transmission Type          Test Frequency         Transmission Time             Limit
                                                                                                    Result
                                MHz                    seconds                    s
    Manually                        433                   1.975                   5                 PASS


 Please refer the following plot.


Pag
  ge 16 of 21   Reporrt No.: HA18
                                810191388-E


                                        Page 17 of 21                   Report No.: HA1810191388-E



7. Duty Cycle
7.1. Standard Applicable
According to FCC Part 15.231(b)(2) and 15.35 (c),For pulse operation transmitter, the averaging pulsed
emissions are calculated by peak value of measured emission plus duty cycle factor.



7.2. Test Procedure
1) The EUT was placed on a turntable which is 0.8m above ground plane.

2) Set EUT operating in continuous transmitting mode

3) Set Test Receiver into spectrum analyzer mode, Tune the spectrum analyzer to the transmitter carrier
frequency, and set the spectrum analyzer resolution bandwidth(RBW) to 1000kHz and video
bandwidth(VBW) to 1000kHz, Span was set to 0Hz.

4) The Duty Cycle was measured and recorded.


7.4. INTRODUCTION TO PDCF reference:
(§15.35 Measurement detector functions and bandwidths.)

1) Part 15 of the FCC Rules provides for the operation of low power communication devices without an
individual license (e.g., intrusion detectors, pulsed water tank level gauges, etc.), subject to certain
requirements. Some of these devices use extremely narrow pulses to generate wideband emissions,
which are measured to determine compliance with the rules. These measurements are typically
performed with a receiver or spectrum analyzer. Depending on a number of factors (e.g., resolution
bandwidth, pulsewidth, etc.), the spectrum analyzer may not always display the true peak value of the
measured emission. This effect, called “pulse desensitization,” relates to the capabilities of the
measuring instrument. For the measurement and reporting of the true peak of pulsed emissions, it may
be necessary to apply a “pulse desensitization correction factor” (PDCF) to the measured value,
pursuant to 47 CFR 15.35(a).


                                           Page 18 of 21                 Report No.: HA1810191388-E



If using spectrum analyzer to measure pulse signal , it have to make sure the RBW use is at least 2/PW.
•When RBW is less than 2/PW, you are able to measure the true peak level of the pulse signal. If this is
the case ,
PDCF is required to compensate to determine true peak value.
Pulse desensitization:
PW =29250usec (0.6* 13+ 1.65*13), Period=67500usec, Level=A
RBW>2/PW=0.068K, 1/T=0.15K
NOTE: 2 / PW < RBW, first don't need

2). For the actual test, please refer to the ANSI C63.10,Annex C refer to section 5 for more detail


7.5. Test Data




     Type of Pulse       Width of Pulse          Quantity of Pulse Transmission Time     Total Time(Ton)
                               ms                                         ms                     ms

         Pulse 1               104                     1                  104                  104



      Test Period (Tp)           Total Time (Ton)              Duty Cycle           Duty Cycle Factor

             ms                            ms                      %                        dB

            208                            104                     50                      -6.02

 Remark: Duty Cycle Factor=20*log (Duty Cycle)

 Please refer to the attached test plots


Pag
  ge 19 of 21   Reporrt No.: HA18
                                810191388-E


                                       Page 20 of 21                 Report No.: HA1810191388-E



8. Antenna Connected Construction
The product does not have an antenna,but with a unique RF connector, and the best case gain
of the Antenna is 0dBi. It complies with the standard requirement.

     ANTENNA :


                  Page 21 of 21   Report No.: HA1810191388-E



9. PHOTOGRAPH OF TEST



Document Created: 2019-04-01 15:49:27
Document Modified: 2019-04-01 15:49:27

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