Test Report

FCC ID: INGRU-850LTB

Test Report

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FCCID_4043806

     FCC Part 74 Subpart H
       EMI TEST REPORT
                             of
E.U.T.             : UHF PLL Body-Pack Transmitter
FCC ID.            : INGRU-850LTB
Model No.          : RU-850TB, RU-850LTB
Working Frequency : 470~608 MHz

                             for

APPLICANT : JTS Professional Co., Ltd.
ADDRESS      : NO. 148, 9TH INDUSTRY RD., TA-LI
               INDUSTRIAL PARK,TAI-LI CITY, TAIWAN,
               R.O.C.


                       Test Performed by




          ELECTRONICS TESTING CENTER (ETC) , TAIWAN
               NO. 34. LIN 5, DINGFU VIL., LINKOU DIST.,
               NEW TAIPEI CITY, TAIWAN, 24442, R.O.C.
                 TEL : (02)26023052 FAX : (02)26010910
               http:// www.etc.org.tw ; e-mail:emc@etc.org.tw

                 Report Number : 16-04-RBF-003-02




                                                                Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                           FCC ID: INGRU-850LTB




                  TEST REPORT CERTIFICATION

 Applicant                  : JTS Professional Co., Ltd.
                                NO. 148, 9TH INDUSTRY RD., TA-LI INDUSTRIAL PARK,
                                TAI-LI CITY, TAIWAN, R.O.C.
 Manufacturer               : JTS Professional Co., Ltd.
                                NO. 148, 9TH INDUSTRY RD., TA-LI INDUSTRIAL PARK,
                                TAI-LI CITY, TAIWAN, R.O.C.


 Description of EUT         :
 a) Type of EUT             : UHF PLL Body-Pack Transmitter
 b) Trade Name              : JTS
 c) Model No.               : RU-850TB, RU-850LTB
 d) FCC ID                  : INGRU-850LTB
 e) Working Frequency       : 470~608 MHz
 f) Power Supply            : DC 1.5V Battery*2

Regulation Applied : FCC Rules and Regulations Part 74 Subpart H

I HEREBY CERTIFY THAT; The data shown in this report were made in accordance with the
procedures given in ANSI C63.10-2013 and the energy emitted by the device was founded to be
within the limits applicable. I assume full responsibility for accuracy and completeness of these
data.


         Issued Date :             Feb. 26, 2017



         Test Engineer :
                                      (Brian Huang, Engineer )



         Approve & Authorized Signer :
                                                     S. S. Liou, Section Manager
                                                   EMC Dept. II of ELECTRONICS
                                                    TESTING CENTER, TAIWAN




                                                                                            Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                                                                        FCC ID: INGRU-850LTB




Table of Contents                                                                                                                                            Page
1. GENERAL INFORMATION ............................................................................................................................... 1
1.1 PRODUCT DESCRIPTION........................................................................................................................................... 1
1.2 TEST METHODOLOGY .............................................................................................................................................. 1
1.3 TEST FACILITY ........................................................................................................................................................ 1
2. REQUIREMENTS OF PROVISIONS ................................................................................................................ 2
2.1   DEFINITION ............................................................................................................................................................. 2
2.2   FREQUENCIES AVAILABLE ...................................................................................................................................... 2
2.3   REQUIREMENTS FOR RADIO EQUIPMENT ON CERTIFICATION .................................................................................. 2
2.4   LABELING REQUIREMENT........................................................................................................................................ 3
3. OUTPUT POWER MEASUREMENT ................................................................................................................ 4
3.1   PROVISION APPLICABLE .......................................................................................................................................... 4
3.2   MEASUREMENT PROCEDURE ................................................................................................................................... 4
3.3   TEST DATA.............................................................................................................................................................. 4
3.4   TEST EQUIPMENT .................................................................................................................................................... 4
4. MODULATION CHARACTERISTICS ............................................................................................................. 5
4.1   PROVISIONS APPLICABLE ........................................................................................................................................ 5
4.2   MEASUREMENT METHOD ........................................................................................................................................ 5
4.3   MEASUREMENT INSTRUMENT.................................................................................................................................. 6
4.4   MEASUREMENT RESULT .......................................................................................................................................... 6
5. OCCUPIED BANDWIDTH OF EMISSION ...................................................................................................... 8
5.1   PROVISIONS APPLICABLE ........................................................................................................................................ 8
5.2   MEASUREMENT METHOD ........................................................................................................................................ 8
5.3   OCCUPIED BANDWIDTH TEST EQUIPMENT .............................................................................................................. 8
5.4   BANDWIDTH MEASURED ......................................................................................................................................... 9
6. FIELD STRENGTH OF EMISSION ................................................................................................................. 13
6.1   PROVISIONS APPLICABLE ...................................................................................................................................... 13
6.2   MEASUREMENT PROCEDURE ................................................................................................................................. 13
6.3   MEASURING INSTRUMENT ..................................................................................................................................... 15
6.4   MEASURING DATA ................................................................................................................................................ 16
6.5   RADIATED MEASUREMENT PHOTOS ...................................................................................................................... 24
7. FREQUENCY STABILITY MEASUREMENT ............................................................................................... 25
7.1   PROVISIONS APPLICABLE ...................................................................................................................................... 25
7.2   MEASUREMENT PROCEDURE ................................................................................................................................. 25
7.3   MEASUREMENT INSTRUMENT................................................................................................................................ 26
7.4   MEASUREMENT DATA ........................................................................................................................................... 27
8 CONDUCTED EMISSION MEASUREMENT ................................................................................................. 29
8.1 STANDARD APPLICABLE........................................................................................................................................ 29




                                                                                                                                                                        Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                             Sheet 1 of 29 Sheets
                                                                        FCC ID: INGRU-850LTB



1. GENERAL INFORMATION

   1.1 Product Description
           a) Type of EUT           : UHF PLL Body-Pack Transmitter
           b) Trade Name            : JTS
           c) Model No.             :   RU-850TB, RU-850LTB
           d) FCC ID                : INGRU-850LTB
           e) Working Frequency     : 470~608 MHz
           f) Power Supply          : DC 1.5V Battery*2
           g) Emission Designator   : 96K0F3E
                                      2M+2DK=2x(3kHz)+2x(45kHz)x1=96kHz
           h) Model Difference      : RU-850LTB: with LCD display
                                      RU-850TB: no LCD display

   1.2 Test Methodology

         Both conducted and radiated testing were performed according to the procedures in
         ANSI C63.10-2013. Test also follow “TIA-603-D(2010)-Land Mobile FM or PM
         Communications Equipment Measurement and Performance Standsrds” and section
         2.1046, 2.1047, 2.1049, 2.1051, 2.1053, and 2.1055 of Part 2 of CFR 47.

         Measueement Software
         Software      Version                 Note
         e3            Version 6.100618b       Radiated Emission Test
         e3            Version 6.100421        Conducted Emission Test



   1.3 Test Facility
       Location of the Test site: No.34, Lin 5, Dingfu Vil., Linkou Dist., New Taipei City,
       Taiwan 24442, R.O.C.
       Designation Number: TW2628.




                                                                                            Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                 Sheet 2 of 29 Sheets
                                                                            FCC ID: INGRU-850LTB



2. REQUIREMENTS OF PROVISIONS
   2.1 Definition
         Intentional radiator:
         A device that intentionally generates and emits radio frequency energy by radiation or
         induction.

   2.2 Frequencies Available
         According to sec. 74.802 of Part 74, the following frequencies are available for low
         power auxiliary station :

                                            Frequencies (MHz)

                             26.100-26.480            455.000-456.000
                             54.000-72.000            470.000-488.000
                             76.000-88.000            488.000-494.000
                             161.625-161.775          494.000-608.000
                             174.000-216.000          614.000-806.000
                             450.000-451.000          944.000-952.000


   2.3 Requirements for Radio Equipment on Certification

         (1) RF Output Power
            For transmitters, the power output shall be measured at the RF output terminals.


         (2) Modulation Characteristics
            For Voice Modulated Communication Equipment, a curve or equivalent data
            showing the frequency response of the audio modulating circuit over a range of 100
            to 5000 Hz shall be submitted.


         (3) Occupied Bandwidth
            For radiotelephone transmitter, other than single sideband or indenpent sideband
            transmitter, when modulateed by a 2.5kHz tone at an input level 16 dB greater than
            that necessary to produce 50 percent modulation.


         (4) Spurious Emissions at Antenna Terminals
            The radio frequency voltage or power generated within the equipment and appearing
            on a spurious frequency shall be checked at the equipment output terminal when
            properly loaded with a suitable artificial antenna.




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ETC Report No.: 16-04-RBF-003-02                                                Sheet 3 of 29 Sheets
                                                                           FCC ID: INGRU-850LTB




         (5) Field Strength of Spurious Emissions
            Measurements shall be made to detect spurious emission that may be radiated
            directly from the cabinet, control circuits, power leads, or intermediate circuit
            elements under normal condition of installation and operation.

         (6) Frequencies Tolerance
            a) The frequency stability shall be measured with variation of ambient temperature.
            b) The frequency stability shall be measured with variation of primary supply voltage.



   2.4 Labeling Requirement
       Each equipment for which a type acceptance application is filed on or after May 1,1981,
       shall bear an identification plate or label pursuant to § 2.925 ( Identification of
       equipment) and §2.926(FCC identifier).




                                                                                               Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                  Sheet 4 of 29 Sheets
                                                                             FCC ID: INGRU-850LTB



3. OUTPUT POWER MEASUREMENT
   3.1 Provision Applicable
       According to §74.861(e)(1)(ii), the output power shall not exceed 250 milliwatts.

   3.2 Measurement Procedure
       1. Check the calibration of the measuring instrument using either an internal calibrator or
          a known signal from an external generator.
       2. Position the EUT as shown in figure 1, and Install new batteries in the EUT. Turn on
          the EUT ant set it to any one convenient frequency within its operating range.
       3. Apply a 2.5 kHz modulation signal to EUT. Record the readings on the instrument.
       4. Repeat above procedures until all frequencies measured were complete.

                          Figure 1: Transmit power measurement configuration.

                                                                      Radio
                            EUT                                   Communication
                                                                     Test Set


                                                                     Power
                                                                     Meter




   3.3 Test Data
              Operated mode : TX                        Test Date     : Nov. 16, 2017
              Temperature   : 23°C                      Humidity      : 55 %
                   Frequency               Transmit Power                    Limit
                     (MHz)              (dBm)            (mW)                (mW)
                    470.000             8.80              7.586              250.0
                    608.000             9.30              8.511              250.0



   3.4 Test Equipment


      Equipment            Manufacturer        Model No. Calibration Date Next Cal. Date
    POWER METER                                 ML2487A
                              ANRITSU                      2017/05/18      2018/05/17
      +SENSOR                                  +MA2491A
    Communications
                            AEROFLEX            2945B         2017/01/09           2018/01/08
    Service Monitor




                                                                                                 Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                Sheet 5 of 29 Sheets
                                                                           FCC ID: INGRU-850LTB



4. MODULATION CHARACTERISTICS
   4.1 Provisions Applicable

       According to § 2.1047 (a), for Voice Modulated Communication Equipment, the
       frequency response of the audio modulating circuit over a range of 100 to 5000 Hz shall
       be measured.


   4.2 Measurement Method

       A) Modulation Limit

       1. Position the EUT as shown in figure 2, adjust the audio input frequency to 100 Hz and
          the input level from 0V to maximum permitted input voltage with recording each
          carrier frequency deviation responding to respective input level.

       2. Repeat step 1 with changing the input frequency for 200, 500, 1000, 3000, and 5000
          Hz in sequence.


       B) Frequency response of all circuits

       1. Position the EUT as shown in figure 2.

       2. Vary the modulating frequency from 100 Hz to 15000 Hz with constant input voltage
          (derived from 5.4(a) of this test report), and observe the change in output.

                 Figure 2 : Modulation characteristic measurement configuration

                                                               Radio
                        EUT                                Communication
                                                              Test Set


                                                             Spectrum
                                                             Analyzer




                                                                                               Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                                                                Sheet 6 of 29 Sheets
                                                                                                                           FCC ID: INGRU-850LTB


   4.3 Measurement Instrument

           Equipment                                       Manufacturer               Model No. Calibration Date Next Cal. Date
      Communications
                                                       AEROFLEX                            2945B               2017/01/09                 2018/01/08
      Service Monitor
      Spectrum Analyzer                                Rohde & Schwarz                     FSP40               2017/11/02                 2018/11/01




   4.4 Measurement Result

              RF Frequency : 470MHz

                           Test Date : Nov. 16, 2017                           Temperature : 23 °C                            Humidity : 55 %

              A). Frequency response

                                            100 Hz               200 Hz               500 Hz                  1kHz                3 kHz               5 kHz

                           6


                           5


                           4
        Output Level (V)




                           3


                           2


                           1


                           0
                               1   5   10   20   30   40    50    60      70     80   90    100   150   200   250    300    350   400   450    500   800 1000
                                                                                                                                              Input Level (mV)




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ETC Report No.: 16-04-RBF-003-02                                                                                                                                      Sheet 7 of 29 Sheets
                                                                                                                                                                 FCC ID: INGRU-850LTB




                                     B). Modulation Limit

                                                          100 Hz               200 Hz               500 Hz                      1kHz               3 kHz                5 kHz
  kHz
    75
                       70
                       65
                       60
                       55
                       50
                       45
                       40
                       35
                       30
                       25
                       20
                       15
                       10
                             5
                             0
                                 1         5         10     20     30    40      50     60     70       80       90       100   150    200   250    300    350    400    450        500    800    1000
                                                                                                                                                    Input Level (mV)




                                     C). Frequency response of all circuits



                             20



                             10
   Frequency Response (dB)




                                 0



                             -10



                             -20



                             -30
                                     0.1       0.2    0.3   0.4    0.5   0.6    0.7   0.8    0.9    1        2        3     4    5      6    7      8      9     10     11     12     13     14    15

                                                                                                                                                                 Input Frequency (kHz)




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ETC Report No.: 16-04-RBF-003-02                                                  Sheet 8 of 29 Sheets
                                                                             FCC ID: INGRU-850LTB



5. OCCUPIED BANDWIDTH OF EMISSION
   5.1 Provisions Applicable

       According to §2.1049 (c)(1), For radiotelephone transmitter, other than single sideband
       or indenpent sideband transmitter, when modulateed by a 2.5kHz tone at an input level
       16 dB greater than that necessary to produce 50 percent modulation.
       According to §74.861( e)(5), the frequency emission bandwidth shall not exceed 200 kHz.


   5.2 Measurement Method
       1. Check the calibration of the measuring instrument using either an internal calibrator or
          a known signal from an external generator.

       2. Position the EUT as shown in figure 3, and Install new batteries in the EUT. Turn on
          the EUT ant set it to any one convenient frequency within its operating range. Set a
          reference level on the measuring instrument equal to the highest peak value.

       3. Apply a 2.5 kHz modulation signal to EUT and measure the frequencies of the
          modulated signal from the EUT where it is the specified number of dB below the
          reference level set in step 2. This is the occupied bandwidth specified.

                   Figure 3 : Occupied bandwidth measurement configuration


                                                                    Radio
                            EUT                                 Communication
                                                                   Test Set


                                                                  Spectrum
                                                                  Analyzer




   5.3 Occupied Bandwidth Test Equipment

           Equipment               Manufacturer      Model No. Calibration Date Next Cal. Date
      Communications               AEROFLEX           2945B
                                                                 2017/01/09      2018/01/08
      Service Monitor
      Spectrum Analyzer            Rohde & Schwarz     FSP40        2017/11/02           2018/11/01




                                                                                                 Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                                         Sheet 9 of 29 Sheets
                                                                                                    FCC ID: INGRU-850LTB


   5.4 Bandwidth Measured

         5.4.1 Input Level Derived

         RF Frequency : 470MHz

              Test Date : Nov. 16, 2017                         Temperature : 23 °C                     Humidity : 55 %

                  Input Audio Frequency : 2.5 kHz, Sine Wave


                                 Frequency Devition
      kHz
        50
         45
         40
         35
         30
         25
         20
         15
         10
          5
          0
              1    5   10   20   30   40   50   60   70   80   90   100 150 200 250 300 350 400 450 500 800 1000
                                                                                                                   Input Level (mV)


              The Level input to produce 50﹪modulation is 40 mV, therefore the magnitude 16 dB
              greater than it is 252 mV.




                                                                                                                          Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                          Sheet 10 of 29 Sheets
                                                                       FCC ID: INGRU-850LTB




         5.4.2 Occupied Bandwidth Plotted

           Test Date : Nov. 16, 2017        Temperature : 23 °C           Humidity : 55 %


                   RF Frequency (MHz)          26 dB Bandwidth (kHz)
                         470.000                        95.5
                         608.000                        95.5




                                                                                          Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                       Sheet 11 of 29 Sheets
                                                                                    FCC ID: INGRU-850LTB


                                                 * RBW 3 kHz        Delta 1 [T1 ]
                                                  VBW 10 kHz                   -0.58 dB
       Ref    0 dBm            Att   30 dB        SWT 30 ms             95.500000000 kHz
       0                                                            Marker 1 [T1 ]
                                                                              -41.57 dBm
                                                                                           *
                                                                       469.952500000 MHz   A
       -10

1 PK
VIEW
       -20



       -30


                               1                                1
       -40
                D1 -41.7 dBm


       -50



       -60



       -70



       -80



       -90


       -100

       Center 470 MHz                        25 kHz/                        Span 250 kHz


                                                       470-腰掛




                                                                                                       Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                      Sheet 12 of 29 Sheets
                                                                                   FCC ID: INGRU-850LTB


                                                  * RBW 3 kHz       Delta 1 [T1 ]
                                                   VBW 10 kHz                  -0.58 dB
        Ref    0 dBm            Att   30 dB        SWT 30 ms            95.500000000 kHz
        0                                                           Marker 1 [T1 ]
                                                                              -41.57 dBm
                                                                                           *
                                                                       607.952500000 MHz   A
        -10

 1 PK
 VIEW
        -20



        -30


                                1                               1
        -40
                 D1 -41.7 dBm


        -50



        -60



        -70



        -80



        -90


        -100

        Center 608 MHz                        25 kHz/                       Span 250 kHz




                                                                                                      Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                         Sheet 13 of 29 Sheets
                                                                                      FCC ID: INGRU-850LTB




6. FIELD STRENGTH OF EMISSION
   6.1 Provisions Applicable
       According to §2.1053, measurements shall be made to detect spurious emission that may
       be radiated directly from the cabinet, control circuits, power leads, or intermediate circuit
       elements under normal condition of installation and operation. Information submitted
       shall include the relative radiated power of spurious emission with reference to the rated
       power output of the transmitter, assuming all emissions are radiated from a halfwave
       dipole antenna.

       According to §74.861(e)(6), the mean power of emissions shall be attenuated below the
       mean output power of the transmitter in accordance with the follwing sceedule:
       (i)       on any frequency removed from the operating frequency by more than 50 percent
            up to and including 100 percent of the authorized bandwidth: at least 25 dB.
       (ii)      on any frequency removed from the operating frequency by more than 100
            percent up to and including 250 percent of the authorized bandwidth: at least 35 dB.
       (iii)     on any frequency removed from the operating frequency by more than 250
            percent of the authorized bandwidth shall be attenuated below the unmodulated carrier
            by at least 43 plus 10 Log(output power in watts) dB.

   6.2 Measurement Procedure
       1. Setup the configuration per figure 4 and 5 for frequencies measured below and above 1
          GHz respectively.
       2. For emission frequencies measured below and above 1 GHz, set the spectrum analyzer
          on a 100 kHz and 1 MHz resolution bandwidth respectively.
       3. The search antenna is to be raised and lowered over a range from 1 to 4 meters in
          horizontally polarized orientation. Position the highness when the highest value is
          indicated on spectrum analyzer, then change the orientation of EUT on test table over
          a range from 0。 to 360。with a speed as slow as possible, and keep the azimuth that
          highest emission is indicated on the spectrum analyzer. Vary the antenna position
          again and record the highest value as a final reading. A RF test receiver is also used to
          confirm emissions measured.
       4. Repeat step 3 until all frequencies need to be measured were complete.
       5. Repeat step 5 with search antenna in vertical polarized orientations.
       6. Check the three frequencies of highest emission with varying the placement of cables
          associated with EUT (if any) to obtain the worse case and record the result.

        Note:
        According to 12.7.2(d)(2) of ANSI C63.10-2013:

           E[dBμV/m] = EIRP[dBm] + 95.2, for d = 3 m.

         12.7.2(e) of ANSI C63.10-2013:
         For conducted measurements below 1000 MHz, the field strength shall be computed as specified in item
         d), and then an additional 4.7 dB shall be added as an upper bound on the field strength that would be
         observed on a test range with a ground plane for frequencies between 30 MHz and 1000 MHz, or an
         additional 6 dB shall be added for frequencies below 30 MHz.


                                                                                                          Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                             Sheet 14 of 29 Sheets
                                                                          FCC ID: INGRU-850LTB




                        Figure 4 : Frequencies measured below 1 GHz configuration


                                                                               Antenna Tower



                                         3m                                        Search
                                                                                   Antenna
                EUT
                                               4m
                                                                          RF Test
                                                                          Receiver


                          Turn                      1m
                                       0.8m
                          Table




                      Ground Plane




                        Figure 5 : Frequencies measured above 1 GHz configuration

                                                                      Antenna Tower


          EUT                                                        Horn Antenna
                                  3m

                                         4m                         Spectrum
                                                                    Analyzer

                                  1.5m
                  Turn                        1m
                  Table
                                                                       Amplifier




                                                                                               Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                               Sheet 15 of 29 Sheets
                                                                            FCC ID: INGRU-850LTB


   6.3 Measuring Instrument


          Equipment                 Manufacturer       Model No. Calibration Date Next Cal. Date
    EMI Test Receiver         Rohde & Schwarz           ESU 40        2017/11/15        2018/11/14
    Bi-Log Antenna            ETC                      MCTD 2786      2017/08/10        2018/08/09
    Horn Antenna              EMCO                       3115         2017/10/11        2018/10/10
    Horn Antenna              EMCO                       3116         2017/11/15        2018/11/14
    Amplifier                 HP                         8447D        2016/12/28        2017/12/27
    Amplifier                 HP                        83051A        2017/08/25        2018/08/24

         Measuring instrument setup in frequency band measured is as following :

         Frequency Band                                                  Resolution       Video
                                       Instrument          Function
             (MHz)                                                       bandwidth      Bandwidth
            30 to 1000             Spectrum Analyzer      Peak            100 kHz          100 kHz
           Above 1000              Spectrum Analyzer      Peak            1 MHz            1 MHz




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ETC Report No.: 16-04-RBF-003-02                                            Sheet 16 of 29 Sheets
                                                                         FCC ID: INGRU-850LTB


    6.4 Measuring Data

           6.4.1. Harmonic Frequencies




Site                  :CHAMBER#2                           Date            :2017-11-20
Limit                 :-13 DBM                             Ant. Pol.       :HORIZONTAL
EUT                   :UHF PLL Body-Pack Transmitter       Model           :RU-850LTB
Power Rating          :BATTERY 3V                          Temp.           :21˚C
Engineer              : Brian Huang                        Humi.           :56 %
Test Mode             :TX
Test Mode             :470MHz


  Freq            Reading          Correction   Result    Limits       Over limit       Detector
                                    Factor
 MHz               dBuV               dB        dBm        dBm            dB
940.0020           42.81            -93.11      -50.30    -13.00        -37.30            Peak

Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB
            {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)}
           {ERP = EIRP – 2.15dB}
3. The margin value=Limit - Result




                                                                                            Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                            Sheet 17 of 29 Sheets
                                                                         FCC ID: INGRU-850LTB




Site                  :CHAMBER#2                           Date            :2017-11-20
Limit                 :-13 DBM                             Ant. Pol.       :VERTICAL
EUT                   :UHF PLL Body-Pack Transmitter       Model           :RU-850LTB
Power Rating          :BATTERY 3V                          Temp.           :21˚C
Engineer              : Brian Huang                        Humi.           :56 %
Test Mode             :TX
Test Mode             :470MHz


  Freq           Reading           Correction   Result    Limits       Over limit       Detector
                                    Factor
 MHz              dBuV                dB        dBm        dBm            dB
940.0020           43.51            -93.11      -49.60    -13.00        -36.60            Peak

Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB
            {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)}
           {ERP = EIRP – 2.15dB}
3. The margin value=Limit – Result




                                                                                            Rev. 2.0


 ETC Report No.: 16-04-RBF-003-02                                            Sheet 18 of 29 Sheets
                                                                          FCC ID: INGRU-850LTB




 Site                  :CHAMBER#2                           Date            :2017-11-20
 Limit                 :-13 DBM                             Ant. Pol.       :HORIZONTAL
 EUT                   :UHF PLL Body-Pack Transmitter       Model           :RU-850LTB
 Power Rating          :BATTERY 3V                          Temp.           :21˚C
 Engineer              : Brian Huang                        Humi.           :56 %
 Test Mode             :TX
 Test Mode             :470MHz, 608MHz


  Freq            Reading           Correction   Result    Limits       Over limit       Detector
                                     Factor
  MHz              dBuV                dB        dBm        dBm            dB
1216.0060           55.40            -108.00     -52.60    -13.00        -39.60            Peak
1410.0040           58.58            -107.38     -48.80    -13.00        -35.80            Peak
1824.0080           56.76            -104.96     -48.20    -13.00        -35.20            Peak
1880.0050           65.61            -104.51     -38.90    -13.00        -25.90            Peak
2350.0060           58.44            -102.94     -44.50    -13.00        -31.50            Peak
2432.0110           65.34            -102.74     -37.40    -13.00        -24.40            Peak
3040.0140           56.38            -100.48     -44.10    -13.00        -31.10            Peak

 Note :
 1. Result = Reading + Corrected Factor
 2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB
             {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)}
            {ERP = EIRP – 2.15dB}
 3. The margin value=Limit - Result




                                                                                             Rev. 2.0


 ETC Report No.: 16-04-RBF-003-02                                            Sheet 19 of 29 Sheets
                                                                          FCC ID: INGRU-850LTB




 Site                  :CHAMBER#2                           Date            :2017-11-20
 Limit                 :-13 DBM                             Ant. Pol.       :VERTICAL
 EUT                   :UHF PLL Body-Pack Transmitter       Model           :RU-850LTB
 Power Rating          :BATTERY 3V                          Temp.           :21˚C
 Engineer              : Brian Huang                        Humi.           :56 %
 Test Mode             :TX
 Test Mode             :470MHz, 608MHz


  Freq            Reading           Correction   Result    Limits       Over limit       Detector
                                     Factor
  MHz              dBuV                dB        dBm        dBm            dB
1216.0060           52.40            -108.00     -55.60    -13.00        -42.60            Peak
1410.0040           63.48            -107.38     -43.90    -13.00        -30.90            Peak
1824.0080           61.66            -104.96     -43.30    -13.00        -30.30            Peak
1880.0050           61.81            -104.51     -42.70    -13.00        -29.70            Peak
2350.0060           55.74            -102.94     -47.20    -13.00        -34.20            Peak
2432.0110           61.84            -102.74     -40.90    -13.00        -27.90            Peak
3040.0140           53.98            -100.48     -46.50    -13.00        -33.50            Peak

 Note :
 1. Result = Reading + Corrected Factor
 2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB
             {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)}
            {ERP = EIRP – 2.15dB}
 3. The margin value=Limit – Result




                                                                                             Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                            Sheet 20 of 29 Sheets
                                                                         FCC ID: INGRU-850LTB




           6.4.2 Spurious Emissions




Site                   :CHAMBER#2                          Date            :2017-11-20
Limit                  :-13 DBM                            Ant. Pol.       :HORIZONTAL
EUT                    :UHF PLL Body-Pack Transmitter      Model           :RU-850LTB
Power Rating           :BATTERY 3V                         Temp.           :21˚C
Engineer               : Brian Huang                       Humi.           :56 %
Test Mode              :TX

  Freq            Reading          Correction   Result    Limits       Over limit       Detector
                                    Factor
 MHz               dBuV               dB        dBm        dBm            dB
251.1600           38.98            -107.05     -68.07    -13.00        -55.07            Peak
304.5100           39.33            -104.98     -65.65    -13.00        -52.65            Peak
359.8000           38.90            -104.07     -65.17    -13.00        -52.17            Peak
396.6600           39.13            -102.90     -63.77    -13.00        -50.77            Peak
431.5800           39.48            -102.43     -62.95    -13.00        -49.95            Peak
493.6600           39.19            -101.78     -62.59    -13.00        -49.59            Peak

Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB
            {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)}
           {ERP = EIRP – 2.15dB}
3. The margin value=Limit - Result




                                                                                            Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                            Sheet 21 of 29 Sheets
                                                                         FCC ID: INGRU-850LTB




Site                  :CHAMBER#2                           Date            :2017-11-20
Limit                 :-13 DBM                             Ant. Pol.       :VERTICAL
EUT                   :UHF PLL Body-Pack Transmitter       Model           :RU-850LTB
Power Rating          :BATTERY 3V                          Temp.           :21˚C
Engineer              : Brian Huang                        Humi.           :56 %
Test Mode             :TX

  Freq           Reading           Correction   Result    Limits       Over limit       Detector
                                    Factor
 MHz              dBuV                dB        dBm        dBm            dB
283.1700           40.13            -106.04     -65.91    -13.00        -52.91            Peak
338.4600           40.98            -104.54     -63.56    -13.00        -50.56            Peak
381.1400           40.76            -103.40     -62.64    -13.00        -49.64            Peak
412.1800           41.34            -102.66     -61.32    -13.00        -48.32            Peak
458.7400           42.15            -102.12     -59.97    -13.00        -46.97            Peak
505.3000           41.11            -101.64     -60.53    -13.00        -47.53            Peak

Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)-EIRP Factor-2.15dB
            {EIRP Factor = -99.9dB (30MHz-1GHz) or -95.2dB (1GHz Above)}
           {ERP = EIRP – 2.15dB}
3. The margin value=Limit - Result




                                                                                            Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                   Sheet 22 of 29 Sheets
                                                                FCC ID: INGRU-850LTB




            6.4.3 Emission mask plots

                                             * RBW 3 kHz
                                               VBW 10 kHz
        Ref    0 dBm           Att   30 dB     SWT 225 ms
        0
                                                                         *
                                                                         A
        -10
        1-FCC-BW
 1 PK
 VIEW
        -20

 2 PK
 VIEW
        -30



        -40



        -50



        -60



        -70



        -80



        -90


        -100

        Center 470 MHz                   200 kHz/           Span 2 MHz




                                                                                   Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                   Sheet 23 of 29 Sheets
                                                                FCC ID: INGRU-850LTB


                                           * RBW 3 kHz
                                             VBW 10 kHz
       Ref    0 dBm          Att   30 dB     SWT 225 ms
       0
                                                                       *
                                                                       A
       -10
       1-FCC-BW
1 PK
VIEW
       -20

2 PK
VIEW
       -30



       -40



       -50



       -60



       -70



       -80



       -90


       -100

       Center 608 MHz                  200 kHz/           Span 2 MHz




                                                                                   Rev. 2.0


ETC Report No.: 16-04-RBF-003-02        Sheet 24 of 29 Sheets
                                     FCC ID: INGRU-850LTB




   6.5 Radiated Measurement Photos




                                                        Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                             Sheet 25 of 29 Sheets
                                                                          FCC ID: INGRU-850LTB



7. FREQUENCY STABILITY MEASUREMENT
   7.1 Provisions Applicable

       According to §2.1055 (a)(1), the frequency stability shall be measured with variation of
       ambient temperature from -30 to +50 centigrade.
       According to §2.1055 (d)(1), the frequency stability shall be measured with variation of
       primary supply voltage from 85 to 115 percent of the nominal value for other than hand
       carried battery equipment.
       According to § 2.1055 (d)(2), for hand carried, battery powered equipment, reduce
       primary supply voltage to the battery operating end point which shall be specified by the
       manufacturer.

       According to §74.861(e)(4), the frequency tolerance of the transmitter shall be 0.005
       percent.



   7.2 Measurement Procedure

       A) Frequency stability versus environmental temperature

       1. Setup the configuration per figure 6 for frequencies measured at an environmental
          chamber.


       2. Turn on EUT and set SA center frequency to the right frequency needs to be measured.
          Set SA RBW to 30 kHz, VBW to 100kHz and frequency span to 500 kHz. Then turn
          off the EUT.


       3. Set the temperature of chamber to 50℃. Allow sufficient time for the temperature of
          the chamber to stabilize. While maintaining a constant temperature inside the chamber,
          turn the EUT on and measure the EUT operating frequency when the frequency has
          stablized.


       4. Repeat step 3 with a 10℃ decreased per stage until the lowest temperature -30℃ is
          measured, record all measurement frequencies.



       B) Frequency stability versus input voltage


       1. Setup the configuration per figure 6 for frequencies measured at an environmental
          chamber set for a temperature of 25℃.



                                                                                             Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                             Sheet 26 of 29 Sheets
                                                                          FCC ID: INGRU-850LTB



       2. Set SA center frequency to the right frequency needs to be measured. Then set SA
          RBW to 30 kHz, VBW to 100kHz and frequency span to 500 kHz.


       3. Supply the EUT primary voltage with 85 and 115 percent of the nominal value and
          record the frequency.



                        Figure 6 : Frequency stability measurement configuration


                            Temperature Chamber



                       Spectrum
                       Analyzer




                                                                     DC
                                                                 Power Supply




   7.3 Measurement Instrument


          Equipment                Manufacturer    Model No.    Calibration Date Next Cal. Date
     Spectrum Analyzer         Rohde & Schwarz FSP40               2017/11/02         2018/11/01
     Temperature Chamber       ESPEC              EFL-3            2017/07/26         2018/07/25




                                                                                             Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                             Sheet 27 of 29 Sheets
                                                                          FCC ID: INGRU-850LTB


   7.4 Measurement Data

           Test Date : Nov. 17, 2017          Temperature : 22 °C            Humidity : 55 %

          A. Tx Frequency 470 MHz
          A1. Frequency stability versus enviroment tempture

                   Reference Frequency :470 MHz             Limit:0.005%
                   Enviroment      Power       (MHz)                (%)
                   Tempture     Supplied
                      (℃)          (Vdc)
                        50                    469.9894         -0.00226
                        40                    469.9910         -0.00191
                        30                    469.9927         -0.00155
                        20          3.0       469.9943         -0.00121
                        10                    469.9962         -0.00081
                         0                    469.9983         -0.00036
                       -10                    470.0003         0.00006
                       -20                    470.0020         0.00043
                       -30                    470.0041         0.00087



          A2. Frequency stability versus supplied voltage

                    Reference Frequency : 470 MHz           Limit:0.005%
                   Enviroment       Power       (MHz)               (%)
                    Tempture       Supplied
                      (℃)           (Vdc)
                       25             2.5     469.9934         -0.00140
                       25             3.5     469.9934         -0.00140




                                                                                             Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                                Sheet 28 of 29 Sheets
                                                                             FCC ID: INGRU-850LTB




           Test Date : Nov. 17, 2017          Temperature : 22 °C               Humidity : 55 %

          B. Tx Frequency 608 MHz
          B1. Frequency stability versus enviroment tempture

                   Reference Frequency :608 MHz                Limit:0.005%
                   Enviroment      Power       (MHz)                (%)
                   Tempture     Supplied
                      (℃)          (Vdc)
                        50                    607.9867            -0.00219
                        40                    607.9890            -0.00181
                        30                    607.9912            -0.00145
                        20          3.0       607.9934            -0.00109
                        10                    607.9957            -0.00071
                         0                    607.9981            -0.00031
                       -10                    608.0003            0.00005
                       -20                    608.0025            0.00041
                       -30                    608.0047            0.00077



          B2. Frequency stability versus supplied voltage

                    Reference Frequency : 608 MHz        Limit:0.005%
                   Enviroment       Power       (MHz)               (%)
                    Tempture       Supplied
                      (℃)           (Vdc)
                       25             2.5     607.9923            -0.00127
                       25             3.5     607.9923            -0.00127




                                                                                                Rev. 2.0


ETC Report No.: 16-04-RBF-003-02                                          Sheet 29 of 29 Sheets
                                                                       FCC ID: INGRU-850LTB



8 CONDUCTED EMISSION MEASUREMENT
   8.1 Standard Applicable
       This EUT is excused from investigation of conducted emission, for it is powered by DC
       battery only. According to §15.207 (d), measurements to demonstrate compliance with
       the conducted limits are not required for devices which only employ battery power for
       operation and which do not operate from the AC power lines or contain provisions for
       operation while connected to the AC power lines.




                                                                                          Rev. 2.0



Document Created: 2018-10-15 22:24:18
Document Modified: 2018-10-15 22:24:18

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