Test reports

FCC ID: 2AFOSWT1231H-915

Test Report

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FCCID_4222210

                             Page 1 of 19        Report No.: HK1810191390-E




     FCC RADIO TEST REPORT

          FCC ID: 2AFOSWT1231H-915


               Product: RF module
           Trade Name: N/A
          Model Name: WT1231H
          Serial Model: WT1231
            Report No.: HK1810191390-E



                         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,
  Heping Community, Fuhai Street, Bao'an District, Shenzhen, China


                                                                Page 2 of 19             Report No.: HK1810191390-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

Product name ........................... : RF module

Trade Mark ............................. : N/A

Model and/or type reference : WT1231H, WT1231
                                                FCC Rules and Regulations Part 15 Subpart C Section 15.249
Standards .............................. :
                                                ANSI C63.10: 2013
This device described above has been tested by Shenzhen HUAK Testing Technology
Co., Ltd., and the test results show that the equipment under test (EUT) is in compliance
with the FCC requirements. And it is applicable only to the tested sample identified in the
report.
This report shall not be reproduced except in full, without the written approval of UNI, this
document may be altered or revised by Shenzhen HUAK Testing Technology Co., Ltd.,
personnel only, and shall be noted in the revision of the document.
Date of Test ............................................:
Date (s) of performance of tests..............:                Oct. 11, 2018 – Oct. 19, 2018
Date of Issue ...........................................:     Oct. 19, 2018
Test Result ...............................................:   Pass



                         Testing Engineer                  :


                                                                           (Gary Qian)

                         Technical Manager                 :

                                                                            (Eden Hu)


                         Authorized Signatory :


                                                                          (Jason Zhou)


                                         Page 3 of 19   Report No.: HK1810191390-E



                            Table of Contents                         Page


1 TEST SUMMARY                                                               4
2 GENERAL INFORMATION                                                        5
  2.1 GENERAL DESCRIPTION OF EUT                                             5
  2.2 Carrier Frequency of Channels                                          6
  2.3 Operation of EUT during testing                                        6
  2.4 DESCRIPTION OF TEST SETUP                                              6
  2.5 MEASUREMENT INSTRUMENTS LIST                                           7
3 CONDUCTED EMISSION TEST                                                    8
  3.1 Test Limit                                                             8
  3.2 Test Setup                                                             8
  3.3 Test Procedure                                                         8
  3.4 Test Result                                                            8
4 RADIATED EMISSION TEST                                                     9
  4.1 Test Limit                                                             9
  4.2 Test Setup                                                          10
  4.3 Test Procedure                                                      12
  4.4 Test Result                                                         12
5 OCCUPIED BANDWIDTH TEST                                                 16
  5.1 Test Setup                                                          16
  5.2 Rules and specifications                                            16
  5.3 Test Procedure                                                      16
  5.4 Test Result                                                         17
6 ANTENNA REQUIREMENT                                                     18
7 PHOTOGRAPH OF TEST                                                      19
  7.1 Radiated Emission                                                   19


                                                 Page 4 of 19            Report No.: HK1810191390-E


1 TEST SUMMARY

1.1 TEST PROCEDURES AND RESULTS

  DESCRIPTION OF TEST                                                   RESULT
  AC Power Line Conducted Emission                                     N/A
  Field Strength of Fundamental                                     COMPLIANT
  Spurious Emissions                                                COMPLIANT
  Band Edge                                                         COMPLIANT
  20dB Occupied Bandwidth                                           COMPLIANT
  Antenna requirement                                               COMPLIANT

1.2 TEST FACILITY

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

  Address           :   1/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping
                        Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China
  The testing quality ability of our laboratory meet with "Quality Law of People's Republic of
  China" Clause 19.The testing quality system of our laboratory meets with ISO/IEC-17025
  requirements, which is approved by CNAS. This approval result is accepted by MRA of
  APLAC.
  Our test facility is recognized, certified, or accredited by the following organizations:
  CNAS-LAB Code: L9589
  The EMC Laboratory has been assessed and in compliance with CNAS-CL01 accreditation
  criteria for testing Laboratories (identical to ISO/IEC 17025:2017 General Requirements) for
  the Competence of testing Laboratories.
  Designation Number: CN1229
  Test Firm Registration Number: 616276
  The EMC Laboratory has been registered and fully described in a report filed with the (FCC)
  Federal Communications commission. The acceptance letter from the FCC is maintained in
  our files.


1.3 MEASUREMENT UNCERTAINTY

  Measurement Uncertainty
  Conducted Emission Expanded Uncertainty                           =    2.23dB, k=2
  Radiated emission expanded uncertainty(9kHz-30MHz)                =    3.08dB, k=2
  Radiated emission expanded uncertainty(30MHz-1000MHz)             =    4.42dB, k=2
  Radiated emission expanded uncertainty(Above 1GHz)                =    4.06dB, k=2


                                       Page 5 of 19            Report No.: HK1810191390-E


2 GENERAL INFORMATION

2.1 GENERAL DESCRIPTION OF EUT


     Equipment             RF module
     Trade Mark            N/A
     Model Name            WT1231H
     Serial No.            WT1231
                           All model’s the function, software and electric circuit are
     Model Difference      the same, only with a product color and model named
                           different. Test sample model: WT1231H.
     FCC ID                2AFOSWT1231H-915
     Antenna Type          External Internal
     Antenna Gain          0dBi
     Operation frequency   915MHz
     Number of Channels    1CH
     Modulation Type       ASK
     Battery               N/A
     Power Source          DC 3.3V
     Adapter Model         N/A


                                                  Page 6 of 19       Report No.: HK1810191390-E


2.2 Carrier Frequency of Channels

                            Operation Frequency each of channel
     Channel                                  Frequency
       01                                      915MHz

2.3 Operation of EUT during testing

     Operating Mode
     The mode is used: Transmitting mode

2.4 DESCRIPTION OF TEST SETUP

     Operation of EUT during testing:

                                          Watt-hour
           AC 120V, 60Hz                                            EUT
                                           Meter


     Setup: Transmission mode

     Table for auxiliary equipment:

          Equipment Description       Manufacturer          Model     Calibration Due Date
             Watt-hour Meter             Safari            CL-100             N/A


                                                Page 7 of 19      Report No.: HK1810191390-E


2.5 MEASUREMENT INSTRUMENTS LIST

  Item       Equipment           Manufacturer         Model No.    Serial No.    Calibrated until
                                    CONDUCTED EMISSIONS TEST
   1            LISN                R&S                ENV216      HKE-002        2018.12.27
   2            LISN                R&S                ENV216      HKE-029        2018.12.27
   3      EMI Test Receiver         R&S                ESCI-7      HKE-010        2018.12.27
                                      RADIATED EMISSION TEST
   1     Broadband antenna       Schwarzbeck         VULB 9163     HKE-012         201912.27
   2        Horn antenna         Schwarzbeck           9120D       HKE-013        2018.12.27
   3          Receiver              R&S                ESCI 7      HKE-010        2018.12.27
   4      Position controller    Taiwan MF             MF7802      HKE-011         201912.27
   5         Preamplifier           EMCI           EMC051845SE     HKE-015        2018.12.27
   6         Preamplifier          Agilent             83051A      HKE-016        2018.12.27
   7     High pass filter unit    Tonscend            JS0806-F     HKE-055        2018.12.27
   8     Spectrum analyzer         Agilent             N9020A      HKE-048        2018.12.27
   9     Spectrum analyzer         Agilent             N9020A      HKE-048        2018.12.27
   10      Signal generator        Agilent             83630A      HKE-028        2018.12.27
   11      Signal generator        Agilent             N5182A      HKE-029        2018.12.27
         RF automatic control
   12                             Tonscend            JS0806-2     HKE-060        2018.12.27
                unit
   13       Power meter            Agilent             E4419B      HKE-085        2018.12.27


                                                  Page 8 of 19                Report No.: HK1810191390-E


3 CONDUCTED EMISSION TEST

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

                                             Maximum RF Line Voltage(dBV)
           Frequency
                                        CLASS A                         CLASS B
             (MHz)
                                 Q.P.               Ave.                Q.P.               Ave.
           0.15~0.50              79                 66               66~56*              56~46*
           0.50~5.00              73                 60                  56                 46
           5.00~30.0              73                 60                  60                 50

   * 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.
    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 Result

   N/A

   Test product is test by    DC power supply, Not applicable.


                                                    Page 9 of 19                Report No.: HK1810191390-E




4 RADIATED EMISSION TEST

 4.1 Test Limit

  1. Limit (Field strength of the fundamental signal):

              Frequency             Limit(dBuV/m@3m)                Remark
                                           94.00                 Average Value
           902MHz-928MHz
                                          114.00                   Peak Value

  2. Limit (Spurious Emissions):

              Frequency             Limit(dBuV/m@3m)               Remark
              0.009-0.490              2400/F(KHz)             Quasi-peak Value
              0.490-1.705              24000/F(KHz)            Quasi-peak Value
                  1.705-30                   30                Quasi-peak Value
            30MHz-88MHz                     40.0               Quasi-peak Value
            88MHz-216MHz                    43.5               Quasi-peak Value
           216MHz-960MHz                    46.0               Quasi-peak Value
            960MHz-1GHz                     54.0               Quasi-peak Value
                                            54.0                 Average Value
             Above 1GHz
                                            74.0                   Peak Value

  3. Limit (Band edge):

  Emissions radiated outside of the specified frequency bands, except for harmonics, shall be attenuated
  by at least 50 dB below the level of the fundamental or to the general radiated emission limits in Section
  15.209, whichever is the lesser attenuation.


                                         Page 10 of 19   Report No.: HK1810191390-E



4.2 Test Setup

  1. Radiated Emission Test-Up Frequency Below 30MHz




  2. Radiated Emission Test-Up Frequency 30MHz~1GHz


                                       Page 11 of 19       Report No.: HK1810191390-E



3. Radiated Emission Test-Up Frequency Above 1GHz




4. Receiver Setup:

       Frequency       Detector      RBW         VBW         Remark
     9kHz- 150kHz    Quasi-peak      200Hz       1kHz    Quasi-peak Value
    150kHz-30MHz     Quasi-peak      9kHz       30kHz    Quasi-peak Value
     30MHz-1GHz      Quasi-peak     120kHz      300kHz   Quasi-peak Value
                        Peak         1MHz       3MHz       Peak Value
      Above 1GHz
                        Peak         1MHz        10Hz     Average Value


                                                  Page 12 of 19              Report No.: HK1810191390-E



4.3 Test Procedure
   1. The EUT was placed on the top of a rotating table 0.8 meters above the ground at a 3 meter chamber in
      below 1GHz, 1.5m above the ground in above 1GHz. The table was rotated 360 degrees to determine the
      position of the highest radiation.
   2. The EUT was set 3 meters away from the interference-receiving antenna, which was mounted on the top
      of a variable-height antenna tower.
   3. The antenna height is varied from one meter to four meters 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.
   4. For each suspected emission, the EUT was arranged to its worst case and then the antenna was tuned to
      heights from 1 meter to 4 meters and the rotatable table was turned from 0 degrees to 360 degrees to find
      the maximum reading.
   5. The test-receiver system was set to Peak Detect Function and Specified Bandwidth with Maximum Hold
      Mode.
   6. If the emission level of the EUT in peak mode was 10dB lower than the limit specified, then testing could be
      stopped and the peak values of the EUT would be reported. Otherwise the emissions that did not have 10dB
      margin would be re-tested one by one using peak, quasi-peak or average method as specified and then
      reported in a data sheet.


4.4 Test Result

 Field Strength of Fundamental:

                                                             Limits
          Frequency       Emission PK/AV
                                              Ant. Pol.      PK/AV           Margin (dB)
            (MHz)           (dBuV/m)
                                                           (dBuV/m)
             915             94.21(PK)            H         114/94              -19.79
             915             81.62(AV)            H         114/94              -12.38
             915             94.75(PK)            V         114/94              -19.25
             915             82.03 (AV)           V         114/94              -11.97


 Spurious Emissions:

 For 9 kHz-30MHz Test Results:

 Note: The emission levels are 20 dB below the limit value, which are not reported. It is deemed to comply
 with the requirement.


                                                 Page 13 of 19             Report No.: HK1810191390-E




  For 30MHz-1GHz Test Results:

Temperature:       22℃                              Relative Humidity:    46%
Test Date:         Oct. 15, 2018                    Pressure:             1010hPa
Test Voltage:      DC 3.3V                          Polarization:         Horizontal
Test Mode:         Transmitting mode




    Remark: Absolute Level = Reading Level + Factor, Margin = Absolute Level – Limit
            Factor = Ant. Factor + Cable Loss – Pre-amplifier


                                                 Page 14 of 19             Report No.: HK1810191390-E


Temperature:       22℃                              Relative Humidity:    46%
Test Date:         Oct. 15, 2018                    Pressure:             1010hPa
Test Voltage:      AC 120V, 60Hz                    Polarization:         Vertical
Test Mode:         Transmitting mode




    Remark: Absolute Level = Reading Level + Factor, Margin = Absolute Level – Limit
            Factor = Ant. Factor + Cable Loss – Pre-amplifier


                                                     Page 15 of 19             Report No.: HK1810191390-E


For Above 1GHz Test Results:

                       PK      AV   Correction Emission Level
 Frequency                                                    Peak limit AV limit Margin
           Ant. Pol. Reading Reading Factor    Peak      AV
   (MHz)                                                      (dBμV/m) (dBμV/m) Peak(dB)
                     (dBμV) (dBμV)   (dB/m) (dBμV/m) (dBμV/m)
   1830        H        50.97      ---      -4.12      46.85       ---     74.00      54.00    -27.15
   2745        H        50.76      ---      -0.58      50.18       ---     74.00      54.00    -23.82
   1830         V       55.29      ---      -4.17      51.12       ---     74.00      54.00    -22.88
   2745         V       51.15      ---      -0.58      50.57       ---     74.00      54.00    -23.43

Note:
1. Emission Level = Peak Reading + Correction Factor; Correction Factor = Antenna Factor + Cable loss – Pre-amplifier
2. Margin = Emission - Limit
3. The emission levels of other frequencies are very lower than the limit and not show in test report.
4. Measurements were conducted from 1 GHz to the 10th harmonic of highest fundamental frequency.
5. Data of measurement shown “---“ in the above table mean that the reading of emissions is attenuated more than
   20dB below the limits or the field strength is too small to be measured.

Band Edge Requirement:

                       PK      AV   Correction Emission Level
 Frequency                                                    Peak limit AV limit Margin
           Ant. Pol. Reading Reading Factor    Peak      AV
   (MHz)                                                      (dBμV/m) (dBμV/m) Peak(dB)
                     (dBμV) (dBμV)   (dB/m) (dBμV/m) (dBμV/m)
    902        H        55.15      ---       -3.8      51.35       ---       74        ---     -22.65
    928        H        55.39      ---       -3.7      51.69                 74        ---     -22.31
    902         V       54.76      ---       -3.8      50.96                 74        ---     -23.04
    928         V       53.81      ---       -4.3      49.51                 74        ---     -24.49

Note:
1. Emission Level = Peak Reading + Correction Factor; Correction Factor = Antenna Factor + Cable loss – Pre-amplifier
2. Margin = Emission - Limit
3. The emission levels of other frequencies are very lower than the limit and not show in test report.
4. Measurements were conducted from 1 GHz to the 10th harmonic of highest fundamental frequency.
5. Data of measurement shown “---“ in the above table mean that the reading of emissions is attenuated more than
   20dB below the limits or the field strength is too small to be measured.


                                                   Page 16 of 19              Report No.: HK1810191390-E


5 OCCUPIED BANDWIDTH TEST

5.1 Test Setup




5.2 Rules and specifications
   CFR 47 Part 15.215(c)
   ANSI C63.10: 2013

5.3 Test Procedure
   1. According to the follow Test-setup, keep the relative position between the artificial antenna and the EUT.
   2. Set to the maximum power setting and enable the EUT transmit continuously.
   3. Use the following spectrum analyzer settings for 20dB Bandwidth measurement.
      Span = approximately 2 to 3 times the 20 dB bandwidth, centered on a hopping channel; RBW≥1% of
      the 20dB bandwidth; VBW≥RBW; Sweep = auto; Detector function = peak; Trace = max hold.
   4. Measure and record the results in the test report.


                                    Page 17 of 19        Report No.: HK1810191390-E


5.4 Test Result

 PASS

                                   20dB Bandwidth
           Mode   Frequency(MHz)                    Limit (kHz)   Conclusion
                                       (KHz)
            TX         915             260.3             /          PASS


                                                 Page 18 of 19              Report No.: HK1810191390-E

6 ANTENNA REQUIREMENT

 Standard Applicable:
 For intentional device, according to FCC 47 CFR Section 15.203, 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.

 Antenna Connected Construction
 The product does not have an antenna,but with a unique RF connector, The directional gains of
 antenna used for transmitting is 0dBi.

 ANTENNA


                               Page 19 of 19   Report No.: HK1810191390-E


7 PHOTOGRAPH OF TEST


7.1 Radiated Emission




                        ***End of Report***



Document Created: 2019-04-01 15:50:06
Document Modified: 2019-04-01 15:50:06

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