test report

FCC ID: ST2-IT724E

Test Report

Download: PDF
FCCID_4419535

                                                                                                210 Cougar Court
                Advanced                                                                  Hillsborough, NJ 08844
                                                                                                Tel: (908) 927 9288
                Compliance Laboratory                                                          Fax: (908) 927 0728



   ELECTROMAGNETIC EMISSION COMPLIANCE REPORT
                                                     of
                                     NEWMOM TAG
                                     MODEL: IT-724E
                           FCC ID: ST2-IT724E IC:6012A-IT724E
                                          August 20, 2019

    This report concerns (check one): Original grant            x       Class II change
    Equipment type: Low Power Intentional Radiator


    Test Specifications:
    ____FCC Part 15C Sec. 15.249
    ____Industry Canada RSS-210 (Issue 8) & RSS-Gen (Issue 3)

    Deferred grant requested per 47 CF 0.457(d)(1)(ii)?    yes            no     x
                                    If yes, defer until:                     (date)
    Company agrees to notify the Commission by                                (date)
    of the intended date of announcement of the product so that the grant can be
    issued on that date.

    Report prepared for:                            CENTRAK, INC.
    Report prepared by:                             Advanced Compliance Lab
    Report number:                                  0048-190606-01




Lab Code: 200101    The test result in this report IS supported and covered by the NVLAP accreditation


                  EUT name: newmom TAG                                                     Model No. IT-724E
                                                                                  FCC ID: ST2-IT724E, IC:6012A-IT724E




Table of Contents

Report Cover Page .........................................................................................................1

Table of Contents ...........................................................................................................2

Figures .............................................................................................................................3


1. GENERAL INFORMATION ...................................................................................4
      1.1 Verification of Compliance .........................................................................4
      1.2 Equipment Modifications ............................................................................5
      1.3 Product Information ....................................................................................6
      1.4 Test Methodology .........................................................................................6
      1.5 Test Facility ..................................................................................................6
      1.6 Test Equipment ............................................................................................6
      1.7 Statement for the Document Use ................................................................7
2. PRODUCT LABELING ............................................................................................8
3. SYSTEM TEST CONFIGURATION ......................................................................9
      3.1 Justification ..................................................................................................9
      3.2 Special Accessories .......................................................................................9
      3.3 Configuration of Tested System .................................................................9
4. SYSTEM SCHEMATICS .........................................................................................13
5. RADIATED EMISSION DATA ...............................................................................14
      5.1 Field Strength Calculation ..........................................................................14
      5.2 Test Methods and Conditions .....................................................................14
      5.3 Test Data .......................................................................................................14
6. EUT RECEIVING MODE VERIFICATION .........................................................22
7. PHOTOS OF TESTED EUT ....................................................................................23




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                                           2


                EUT name: newmom TAG                                               Model No. IT-724E
                                                                          FCC ID: ST2-IT724E, IC:6012A-IT724E




                                                              Figures

Figure 2.1 FCC/IC ID Label .........................................................................................8

Figure 2.2 Location of Label .........................................................................................8

Figure 3.1 Radiated Test Setup.....................................................................................12

Figure 4.1 EUT Schematics ...........................................................................................13

Figure 7.1 Front View ....................................................................................................24

Figure 7.2 Back View .....................................................................................................25

Figure 7.3 PCB Component Side View ........................................................................26

Figure 7.4 PCB Foil Side View ......................................................................................27




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                                    3


              EUT name: newmom TAG                                      Model No. IT-724E
                                                               FCC ID: ST2-IT724E, IC:6012A-IT724E




1. GENERAL INFORMATION
1.1 Verification of Compliance

                  EUT:                NEWMOM TAG

                 Model:               IT-724E
                                      ( all models are electrical identical )

             Applicant:               CENTRAK, INC.

            Test Type:                FCC Part 15.249 & 15.209
                                      IC RSS-210 (Issue 9) A2.9 & RSS-Gen (Issue 5)

                 Result:              PASS

             Tested by:               ADVANCED COMPLIANCE LABORATORY

 Test Complete Date:                  August 20, 2019

      Report Number:                  0048-190606-01

The above equipment was tested by Compliance Laboratory, Advanced Technologies, Inc. for
compliance with the requirement set forth in the FCC rules and regulations Part 15 subpart C. This
said equipment in the configuration described in the report, shows the maximum emission levels
emanating from equipment are within the compliance requirements.

The estimated uncertainty of the test result is given as following. The method of uncertainty
calculation is provided in Advanced Compliance Lab. Doc. No. 0048-01-01.

                                     Prob. Dist.   Uncertainty(dB)      Uncertainty(dB)      Uncertainty(dB)
                                                    30-1000MHz            1-6.5GHz             Conducted
Combined Std. Uncertainty uc           norm.           ±2.36                 ±2.99                ±1.83




____________________
Wei Li                                                                    Date August 20, 2019
Lab Manager
Advanced Compliance Lab


———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                         4


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




1.2 Equipment Modifications



N/A




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                         5


              EUT name: newmom TAG                                      Model No. IT-724E
                                                               FCC ID: ST2-IT724E, IC:6012A-IT724E



1.3 Product Information

                                   System Configuration
        ITEM                 DESCRIPTION                 FCC/IC ID                                    CABLE
        Product      NEWMOM TAG IT-724E (1)         ST2-IT724E
                                                    6012A-IT724E
      Housing        PLASTICS
    Power Supply     3V DC Battery
   Operation Freq.   904MHz ~ 926MHz, 125KHz
      Receiver       IT-724(RX)                     Verification
(1) EUT submitted for grant.

1.4 Test Methodology

Radiated tests were performed according to the procedures in ANSI C63.4-2014 at an antenna to
EUT distance of 3 meters.

1.5 Test Facility

The open area test site and conducted measurement facility used to collect the radiated and
conducted data are located at Hillsborough, New Jersey, USA. This site is accepted by FCC to
perform measurements under Part 15 or 18 (US5347) and also designated by IC as “ site IC 3130”.
ACL is recognized by ISED as a wirless testing laboratory ( CAB ID: US0100) . The NVLAP Lab code
for accreditation of FCC EMC Test Method is: 200101-0.

1.6 Test Equipment

 Manufacture          Model         Serial No.                      Description                      Cal Due
                                                                                                    dd/mm/yy
    Hewlett-       HP8546A        3448A00290                     EMI Receiver                        25/09/19
    Packard
     EMCO            3104C         9307-4396             20-300MHz Biconical Antenna                12/11/19
     EMCO             3146         9008-2860          200-1000MHz Log-Periodic Antenna              13/11/19
    Electro-
                  ALR-25M/30           289            10KHz-30MHz Active Loop Antenna               28/05/20
    Meterics
COM-POWER           L1215A           191994          Line Impedance Stabilization Networks          24/03/20
Fischer Custom      LISN-2         900-4-0009        Line Impedance Stabilization Networks          18/03/20
     EMCO             3115            4945             Double Ridge Guide Horn Antenna              28/11/19
     Agilent        E4440A        US40420700                PSA Spectrum Analyzer                   17/06/20
All Test Equipment Used are Calibrated Traceable to NIST Standards. Calibration interval: 2 year.




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                         6


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E



1.7 Statement for the Document Use

This report shall not be reproduced except in full, without the written approval of the laboratory.
And this report must not be used by the client to claim product endorsement by NVLAP or any
agency of the U.S. & Canada Government.




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                         7


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




2. PRODUCT LABELING



                Centrak       newmom Tag
                Model No.: IT-724E
                                 Figure
                FCC ID: ST2-IT724E   IC:2.1 FCC ID Label
                                         6012A-IT724E


                    This device complies with part 15 of the FCC
                    Rules and IC RSS-210 & RSS-Gen Rules..
                    Operating is subject to the following two
                      Figure 2.2 Location of Label on the Side of EUT
                    conditions: (1) This device may not cause
                    harmful interference, and (2) this device must
                    accept any interference received, including
                    interference that may cause undesired operation.




                                        Figuare 2.1 FCC/IC ID Label
                                        (Only ID show on the EUT)




                                                          ID Label




                                      Figure 2.2 Location of the Label
———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                         8


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




3. SYSTEM TEST CONFIGURATION
3.1 Justification

The system was configured for testing in a typical fashion (as a customer would normally use it).
Customized antenna on PCB was used.
Testing was performed as EUT was continuously operated at the following frequency channels:
Low=904MHz, Middle= 915MHz, High=926MHz.
Low Frequency channel=125KHz

Fresh external battery was used for extended operating time. However, EUT was checked with the
internal battery and it was confirmed that the readings obtained with the fresh external battery
remain representative of the device as marketed.


3.2 Special Accessories

N/A

3.3 Configuration of Tested System

The following figure(s) illustrate this system, which is tested standing along.




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                         9


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        10


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        11


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




                                   Figure 3.1 Radiated Test Setup




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        12


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




4. SYSTEM SCHEMATICS




                                                See Attachment.

                                       Figure 4.1 System Schematics




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        13


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




5. RADIATED EMISSION DATA

5.1 Field Strength Calculation
The corrected field strength is automatically calculated by EMI Receiver using following:
                                   FS = RA +AF + CF + AG

where FS: Corrected Field Strength in dBV/m
      RA: Amplitude of EMI Receiver before correction in dBV
      AF: Antenna Factor in dB/m
      CF: Cable Attenuation Factor in dB
      AG: Built-in Preamplifier Gain in dB (Stored in receiver as part of the calibration data)

THE “DUTY CYCLE CORRECTION FACTOR” FOR SPURIOUS RADIATED EMISSIONS IS;
20 log * (4 ms / 100 ms) = -28 dB, WHICH WAS USED TO CORRECT THE AVERAGE RADIATED
EMISSION READINGS.

5.2 Test Methods and Conditions

The initial step in collecting radiated data is a EMI Receiver scan of the measurement range below
30MHz using peak detector and 9KHz IF bandwidth / 30KHz video bandwidth. For the range
30MHz - 1GHz, 100KHz IF bandwidth / 100KHz video bandwidth are used. Both bandwidths are
1MHz for above 1GHz measurement. The frequency range from 9KHz up to 10th harmonics were
investigated.

5.3 Test Data

The following data lists the significant emission frequencies, polarity and position, peak reading of
the EMI Receiver, the FCC limit, and the difference between the peak reading and the limit.
Explanation of the correction and calculation are given in section 5.1.


Test Personnel:


Typed/Printed Name: Edward Lee                                         Date:     August 20, 2019




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        14


                EUT name: newmom TAG                                        Model No. IT-724E
                                                                   FCC ID: ST2-IT724E, IC:6012A-IT724E




                         Radiated Test Data (CH-904MHz/915MHz/926MHz)
                                                 Peak /QP                          Average
    Frequency    Polarity   Antenna   Azimuth             FCC/IC 3m Difference                 FCC/IC 3m    Difference
                                                 Reading                           Reading
                                                                     To Peak                   QP/Average    To AVG
                  (V,H)     Height                at 3m   Peak Limit                with
                                                                       Limit                      Limit       Limit
                                                                                  Correction
                 Position                           (2)          (3)                              (1)
                                                                                   (>1GHz)
      (MHz)       (X,Y,Z)     (m)     (Degree)   (dBuV/m)   (dBuV/m)   (dBuV/m)   (dBuV/m)      (dBuV/m)    (dBuV/m)
       904         V/X       1.1       270        81.2                                            94          -12.8
      1808         V/X       1.1       180        47.2           74      -26.8      19.2          54
      2712         V/X       1.1       270        47.8           74      -26.2      19.8          54
       904         H/X       1.1       270        90.2                                            94          -3.8
      1808         H/X       1.0       270        49.8           74      -24.2      21.8          54
      2712         H/X       1.0       330        45.3           74      -28.7      17.3          54

       915         V/X       1.1       090        79.2                                            94          -14.8
      1830         V/X       1.1       180        47.1           74      -26.9      19.1          54
      2745         V/X       1.1       270        46.4           74      -27.6      18.4          54
       915         H/X       1.0       090        86.7                                            94          -7.3
      1828         H/X       1.1       270        49.4           74      -24.6      21.4          54
      2745         H/X       1.1       330        44.7           74      -29.3      16.7          54

       926         V/X       1.1       045        79.3                                            94          -14.7
      1852         V/X       1.1       180        46.4           74      -27.6      18.4          54
      2778         V/X       1.1       270        44.8           74      -29.2      16.8          54
       926         H/X       1.0       000        85.9                                            94          -8.1
      1852         H/X       1.1       270        48.4           74      -25.6      20.4          54
      2778         H/X       1.1       330        43.4           74      -30.6      15.4          54

       904         V/Y       1.1       180        90.6                                            94          -3.4
      1808         V/Y       1.1       000        52.0           74      -22.0      24.0          54
      2712         V/Y       1.1       000        46.5           74      -27.5      18.5          54
       904         H/Y       1.0       180        82.0                                            94          -12.0
      1808         H/Y       1.1       000        45.9           74      -28.1      17.9          54
      2712         H/Y       1.1       000        43.8           74      -30.2      15.8          54

       915         V/Y       1.1       235        85.8                                            94          -8.2
      1830         V/Y       1.1       000        51.5           74      -22.5      23.5          54
      2745         V/Y       1.1       000        45.0           74      -29.0      17.0          54
       915         H/Y       1.0       180        81.8                                            94          -12.2
      1828         H/Y       1.1       000        45.3           74      -28.7      17.3          54
      2745         H/Y       1.1       000        43.6           74      -30.4      15.6          54

      926          V/Y       1.1       045        86.8                                            94          -7.2

———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                            15


              EUT name: newmom TAG                                        Model No. IT-724E
                                                                 FCC ID: ST2-IT724E, IC:6012A-IT724E



      1852        V/Y        1.1       000        52.2          74       -21.8       24.2         54
      2778        V/Y        1.1       270        44.3          74       -29.7       16.3         54
       926        H/Y        1.0       180        80.7                                            94          -13.3
      1852        H/Y        1.1       090        44.2          74       -29.8       16.2         54
      2778        H/Y        1.1       000        43.1          74       -30.9       15.1         54

       904         V/Z       1.1       330        83.8                                            94          -10.2
      1808         V/Z       1.1       180        46.3          74       -27.7       18.3         54
      2712         V/Z       1.1       270        47.5          74       -26.5       19.5         54
       904         H/Z       1.0       270        86.6                                            94          -7.4
      1808         H/Z       1.1       000        51.6          74       -22.4       23.6         54
      2712         H/Z       1.1       000        46.3          74       -27.7       18.3         54

       915         V/Z       1.1       270        83.9                                            94          -10.1
      1830         V/Z       1.1       180        47.0          74       -27.0       19.0         54
      2745         V/Z       1.1       270        46.5          74       -27.5       18.5         54
       915         H/Z       1.0       330        86.8                                            94          -7.2
      1830         H/Z       1.1       000        52.0          74       -22.0       24.0         54
      2745         H/Z       1.1       180        46.4          74       -27.6       18.4         54

       926         V/Z       1.1       270        82.8                                            94          -11.2
      1852         V/Z       1.1       180        47.5          74       -26.5       19.5         54
      2778         V/Z       1.1       270        44.3          74       -29.7       16.3         54
       926         H/Z       1.0       270        86.2                                            94          -7.8
      1852         H/Z       1.1       000        50.7          74       -23.3       22.7         54
      2778         H/Z       1.1       000        45.0          74       -29.0       17.0         54

(1) The limit for emissions within the 902-928MHz band is 50mV(94dB) per FCC Sec. 15.249 & IC RSS-210 Annex
2.9. The limit for its harmonics is 500uV (54dB). Other spurious emissions shall be lower than either its fundamental
by 50dB or the limit defined in Sec. 15.209, whichever is higher.
(2) If the peak reading is less than the FCC/IC quasi-peak or average limit, it’ll be not necessary to show the measured/
calculated quasi-peak or average reading.
(3) For above 1GHz range, peak reading shall meet the limit: average Limit+20dB.




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                           16


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




                           Other Spurious outside of the band 902-928MHz

                                                   Peak     Peak     FCC/IC
          Frequency Polarity Antenna Azimuth                                Difference
                                                  Reading Reading      3m
                          (V,H)  Height            at 3m    After     Limit
                        Position                     (2)  Correction   (1)
            (MHz)        (X,Y,Z)  (m)   (Degree) (dBuV/m) (dBuV/m) (dBuV/m) (dBuV/m)
             294           V/Y    1.1     220       31.9              46.5     -14.6
             494           V/Y    1.1     090       36.4              46.5     -10.1
             600           V/Y    1.1     160       37.2              46.5      -9.3
             687           V/Y    1.1     220       39.5              46.5      -7.0
             718           V/Y    1.0     180       39.4              46.5      -7.1
             873           V/Y    1.0     100       40.9              46.5      -5.6
             496           H/X    1.2     150       34.0              46.5     -12.5
             640           H/X    1.0     180       35.6              46.5     -10.9
             690           V/Y    1.1     220       37.0              46.5      -9.5
             703           V/Y    1.0     180       38.7              46.5      -7.8
             714           H/X    1.0     180       38.7              46.5      -7.8
             894           H/X    1.1     120       40.4              46.5      -6.1

Comparing to the limit defined in FCC Sec. 15.209/IC RSS-Gen, emissions below the limit by
20dB were not recorded.




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        17


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




                                              20dB Bandwidth Plot




                                              99% Bandwidth Plot




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        18


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E




                                                  Duty Cycle Plot




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        19


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E



                               125KHz Transmission Radiated Test Data

EUT is powered by fresh battery.

    EUT at X Orientation as worst case:
                                                       Peak
         Frequency        Polarity    Antenna Azimuth          Reading      FCC    Difference
                                                      Reading
                           (V,H)       Height          at 3m    After    Limit@ 3m
                          Position                       (2)  Correction    (1)
            (MHz)            Z          (m) (Degree) (dBuV/m) (dBuV/m) (dBuV/m) (dBuV/m)
            0.125          Loop         1.0   020       62.3               105.6      -43.3
            0.251          Loop         1.0   010       47.6                99.6      -52.0
            0.376          Loop         1.0   020       45.1                73.7      -28.6
            0.502          Loop         1.0   340       39.8                70.1      -30.3

 (1) The limit for emissions per Sec. 15.209 with distance correction factor (40dB/decade at f<30MHz).
(2) If each peak reading is less than the FCC QP or average limit, it’ll be not necessary to show the measured/
calculated QP or average reading (QP detector shall be used except for the frequency bands 9–90 kHz, 110–490 kHz
and above 1000 MHz, in which an average detector shall be employed).



20 dB Bandwidth at 125KHz =15.75KHz




                                         20dB Bandwidth Plot




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        20


              EUT name: newmom TAG                                     Model No. IT-724E
                                                              FCC ID: ST2-IT724E, IC:6012A-IT724E



99% Bandwidth at 125KHz = 18.75KHz




                                          99% Bandwidth Plot




———————————————————————————————————————————————
Advanced Compliance Lab, 210 Cougar Court, Hillsborough, NJ 08844 Tel: (908) 927-9288 Fax: (908) 927-0728



                                                        21



Document Created: 2019-08-29 12:03:57
Document Modified: 2019-08-29 12:03:57

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC