FCC Part 15.247 Test Report

FCC ID: MTD-0006

Test Report

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FCCID_3905288

                                                   Test Report
                                     Prepared for: Time Keeping Systems Inc.

                                                   Model: TAG-006

                                      Description: Body Worn Location Device

                                                 Serial Number: N/A

                                                  FCC ID: MTD-0006
                                                   IC: 12375A-0006

                                                          To

                                                   FCC Part 15.247
                                                 IC RSS-247 Issue 2

                                            Date of Issue: June 25, 2018



On the behalf of the applicant:           Time Keeping Systems Inc.
                                          30700 Bainbridge Rd
                                          Cleveland, OH 44139

Attention of:                             Blair Hamilton, Hardware Engineer
                                          Ph: (216)595-1026
                                          E-Mail: dchriss@guard1.com


                                                   Prepared By
                                             Compliance Testing, LLC
                                                1724 S. Nevada Way
                                                  Mesa, AZ 85204
                                     (480) 926-3100 phone / (480) 926-3598 fax
                                           www.compliancetesting.com
                                               Project No: p1850027




                                                                         Kenneth Lee
                                                                         Project Test Engineer




         This report may not be reproduced, except in full, without written permission from Compliance Testing.
                              All results contained herein relate only to the sample tested.




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Test Report Revision History

Revision        Date            Revised By    Reason for Revision

1.0             June 19, 2018   Kenneth Lee   Original Document

2.0             June 25, 2018   Kenneth Lee   Updated the term BLE to GFSK in additional Information




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                                                             Table of Contents

Description                                                                                                                                     Page

 Standard Test Conditions Engineering Practices ............................................................................... 6
 Output Power ...................................................................................................................................... 8
 Radiated Spurious Emissions ............................................................................................................. 9
 Conducted Spurious Emissions ........................................................................................................ 13
 Emissions at Band Edges ................................................................................................................. 15
 DTS Bandwidth ................................................................................................................................. 19
 Transmitter Power Spectral Density (PSD) ....................................................................................... 22
 Test Equipment Utilized .................................................................................................................... 25




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                                                         ILAC / A2LA


Compliance Testing, LLC, has been accredited in accordance with the recognized International Standard ISO/IEC
17025:2005. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory
quality management system (refer to the joint ISO-ILAC-IAF Communiqué dated January 2009).

The tests results contained within this test report all fall within our scope of accreditation, unless noted below.

Please refer to http://www.compliancetesting.com/labscope.html for current scope of accreditation.

Testing Certificate Number: 2152.01




FCC Site Reg. #349717

IC Site Reg. #2044A-2


       Non-accredited tests contained in this report:

       N/A




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The applicant has been cautioned as to the following


15.21 - Information to User

The user’s manual or instruction manual for an intentional radiator shall caution the user that changes or modifications not
expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

15.27(a) - Special Accessories

Equipment marked to a consumer must be capable of complying with the necessary regulations in the configuration in
which the equipment is marketed. Where special accessories, such as shielded cables and/or special connectors are
required to enable an unintentional or intentional radiator to comply with the emission limits in this part, the equipment
must be marketed with, i.e. shipped and sold with, those special accessories. However, in lieu of shipping or packaging
the special accessories with the unintentional or intentional radiator, the responsible party may employ other methods of
ensuring that the special accessories are provided to the consumer without an additional charge.

Information detailing any alternative method used to supply the special accessories for a grant of equipment authorization
or retained in the verification records, as appropriate. The party responsible for the equipment, as detailed in § 2.909 of
this chapter, shall ensure that these special accessories are provided with the equipment. The instruction manual for such
devices shall include appropriate instructions on the first page of text concerned with the installation of the device that
these special accessories must be used with the device. It is the responsibility of the user to use the needed special
accessories supplied with the equipment.




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Standard Test Conditions Engineering Practices

Except as noted herein, the following conditions and procedures were observed during the testing:

In accordance with ANSI C63.10-2013 and unless otherwise indicated in the specific measurement results, the ambient
temperature of the actual EUT was maintained within the range of 10° to 40°C (50° to 104°F) unless the particular
equipment requirements specified testing over a different temperature range. Also, unless otherwise indicated, the
humidity levels were in the range of 10% to 90% relative humidity.

Measurement results, unless otherwise noted, are worst-case measurements.

                                                 Environmental Conditions
                               Temperature              Humidity                Pressure
                                  (ºC)                    (%)                    (mbar)
                                   20-27                 26-37                  942-989

EUT Description
Model: TAG-006
Description: Body Worn Location Device
Firmware: N/A
Software: N/A
Serial Number: N/A
Antenna Gain: -1.6 dBi
Additional Information: The EUT implements GFSK.

EUT Operation during Tests
The EUT was set to transmit at 100% duty cycle on the low, middle and highest channel of operation at the maximum
available power level.


             Accessories: None

             Cables: None

             Modifications: None


15.203: Antenna Requirement:

                                             X      The antenna is permanently attached to the EUT

                                                    The antenna uses a unique coupling

                                                    The EUT must be professionally installed

                                                    The antenna requirement does not apply




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Test Results Summary

   FCC 15.247             RSS-247                                                   Pass,
                                                         Test Name                                   Comments
  Specification         Specification                                              Fail, N/A
15.247(b)           Section 5.4(d)          Peak Output Power                        Pass

15.247(d)           Section 5.5             Conducted Spurious Emissions             Pass
15.247(d),
                    Section 5.5             Radiated Spurious Emissions              Pass
15.209(a), 15.205
15.247(d),
                    Section 5.5             Emissions At Band Edges                  Pass
15.209(a), 15.205
15.247(a)(2)        Sections 5.2(a)         Occupied Bandwidth                       Pass

15.247(e)           Section 5.2(b)          Transmitter Power Spectral Density       Pass
                    RSS-GEN
15.207                                      A/C Powerline Conducted Emissions         N/A      EUT is Battery Powered
                    Section 8.8




     References                         Description

     CFR47, Part 15, Subpart B          Unintentional Radiators

     CFR47, Part 15, Subpart C          Intentional Radiators

     ANSI C63.10-2013                   American National standard for testing Unlicensed Wireless Devices
                                        Method and Measurements of Radio-Noise Emissions from low-Voltage
     ANSI C63.4-2014
                                        Electrical and Electronic Equipment in the range 9kHz to 40GHz.
                                        General requirements for the Competence of Testing and Calibrations
     ISO/IEC 17025:2005
                                        Laboratories
                                        Guidance for Performing Compliance Measurements on Digital Transmission
     KDB 558074 D01 v04
                                        Systems (DTS) Operating under §15.247




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Output Power
Engineer: Kenneth Lee
Test Date: 6/19/2018

                                                  Test Procedure

The EUT was connected directly to a spectrum analyzer. The Spectrum Analyzer was set to the following:

RBW ≥ DTS Bandwidth
VBW ≥ 3 x RBW
Span ≥ 3 x RBW
Sweep time = auto couple
Detector = peak
Trace Mode = max hold


The EUT was set to transmit on the lowest, middle and highest frequencies at the maximum power level. The RF output
power was measured using the spectrum analyzer’s marker peak function

                                                     Test Setup



                                                                   Spectrum
                                           EUT
                                                                   Analyzer




                                             Transmitter Output Power


                 Tuned Frequency          Measured Value
                                                                  Specification Limit      Result
                      (MHz)                   (dBm)
                        2402                    3.327                1 W (30 dBm)          Pass

                        2426                    3.549                1 W (30 dBm)          Pass

                        2480                    2.433                1 W (30 dBm)          Pass




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Radiated Spurious Emissions
Engineer: Kenneth Lee
Test Date: 6/19/2018

                                                     Test Procedure
                                       Radiated Spurious Emissions: 30 – 1000 MHz

The EUT was setup in a semi-anechoic test chamber set 3m from the receiving antenna. The EUT was set to transmit on the
lowest, middle and highest frequency of operation at the maximum power level. The EUT was tested, in 3 orthogonal axis, by
rotating it 360 with the receive antenna in both the vertical and horizontal orientation while raised from 1 to 4 meters to ensure
the TX signal levels were maximized. A spectrum analyzer was used to verify that the EUT met the requirements for
Radiated Spurious Emissions.

All emissions from 30 MHz to 1 GHz were examined.
Measured Level includes antenna and receiver cable correction factors.
Correction factors were input into the spectrum analyzer before recording “Measured Level”.

RBW = 100 KHz
VBW = 300 KHz
Detector – Quasi Peak

                                                           Test Setup


                               EUT                           Antenna                     Spectrum
                                                                                         Analyzer




                                                   Test Procedure for
                                        Radiated Spurious Emissions above 1 GHz

The EUT was setup in a semi-anechoic test chamber set 3m from the receiving antenna. The EUT was set to transmit on the
lowest, middle and highest frequency of operation at the maximum power level. The EUT was tested, in 3 orthogonal axis, by
rotating it 360 with the receive antenna in both the vertical and horizontal orientation while raised from 1 to 4 meters to ensure
the TX signal levels were maximized. A spectrum analyzer was used to verify that the EUT met the requirements for
Radiated Spurious Emissions.

RBW = 1 MHz
VBW = 3 MHz
Detector – Peak


                                                           Test Setup

                                                            Band Reject
               EUT                     Antenna                 Filter                Amplifier             Spectrum
                                                                                                           Analyzer
                                                            (if necessary




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Radiated Spurious Emissions Plots

   Low Channel – 30-1000 MHz




   Mid Channel – 30-1000 MHz




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High Channel – 30-1000 MHz




 Low Channel – 1-18 GHz




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                                      Mid Channel – 1-18 GHz




                                      High Channel – 1-18 GHz




Testing was performed to the 10th harmonic of the device, only noise floor was discovered above 18 GHz.




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Conducted Spurious Emissions
Engineer: Kenneth Lee
Test Date: 6/19/2018

                                                    Test Procedure

The EUT was connected directly to a spectrum analyzer. The Spectrum Analyzer was set to the following:

RBW = 100 kHz
VBW ≥ 3 x RBW
Peak Detector
Trace mode = max hold
Sweep = auto couple
Frequency Range = 30MHz – 10th Harmonic of the fundamental

The EUT was set to transmit on the lowest, middle and highest frequencies at the maximum power level. The trace was
allowed to stabilize. All emissions were investigated to insure they were attenuated from the peak fundamental by at least
20dB. If the average power levels were measured then the out-of-band emissions needed to be attenuated by 30dB. In
addition, emissions were investigated at the band edges to insure all out-of-band emissions were attenuated 20 or 30dB
as necessary.


                                                       Test Setup


                                            EUT                     Spectrum
                                                                    Analyzer



                                        Conducted Spurious Emissions Plots

                                                      Low Channel




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Mid Channel




High Channel




               p1850027_FCC_Part 15.247_Rev 2.0
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Emissions at Band Edges
Engineer: Kenneth Lee
Test Date: 6/19/2018

                                                       Test Procedure

The EUT was connected directly to a spectrum analyzer. The spectrum analyzer was used to verify that the EUT met the
requirements for band edges.


                                                         Test Setup



                                                                        Spectrum
                                                 EUT
                                                                        Analyzer



                                             Band Edge Emissions Summary

     Tuned Frequency             Emission Frequency
                                                                Monitored Level         Detector        Limit       Result
          (MHz)                        (MHz)
            2402                          2400                        -52.49              Peak         -20 dBc       Pass

            2480                         2483.5                       -48.27              Peak         -20 dBc       Pass




                                          Restricted Band Edge Test Procedure

The EUT was tested in a semi-anechoic test chamber set 3m from the receiving antenna. A spectrum analyzer was used to
verify that the EUT met the requirements for Restricted Band Edges. The EUT was tested in 3 orthogonal axis by rotating it
360 with the antenna in both the vertical and horizontal orientation and was raised from 1 to 4 meters to ensure the TX signal
levels were maximized.


                                                         Test Setup


                              EUT                           Antenna                   Spectrum
                                                                                      Analyzer




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Band Edge Plots

 Low Channel




 High Channel




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Restricted Band Edge Plots

      Low Channel




   High Channel – Peak




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High Channel – Average




                         p1850027_FCC_Part 15.247_Rev 2.0
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DTS Bandwidth
Engineer: Kenneth Lee
Test Date: 6/19/2018

                                                    Test Procedure

The EUT was connected directly to a spectrum analyzer. The Spectrum Analyzer was set to the following:

RBW = 100 kHz
VBW ≥ 3 x RBW
Peak Detector
Trace mode = max hold
Sweep = auto couple
Span = 1.5 x EBW

The EUT was set to transmit at the lowest, middle and highest channels of the band at the maximum power levels. The
maximum width of the emission that was determined by the frequencies associated with the two outermost amplitude
points (upper and lower frequencies) that were attenuated by 6db and this value was used to determine the width of the
carrier. Alternatively, the spectrum analyzer’s automatic bandwidth capability was used.


                                                        Test Setup


                                             EUT                     Spectrum
                                                                     Analyzer


                                         6 dB Occupied Bandwidth Summary

             Frequency                 Measured Bandwidth                 Specification Limit
                                                                                                    Result
               (MHz)                          (kHz)                              (kHz)
                2402                          731.947                            ≥ 500               Pass

                2426                          716.654                            ≥ 500               Pass

                2480                          735.127                            ≥ 500               Pass

                                              99% Bandwidth Summary

                             Frequency             Measured Bandwidth
                                                                                    Result
                               (MHz)                     (MHz)
                                2402                        1.0763                   Pass

                                2426                        1.0826                   Pass

                                2480                        1.0905                   Pass




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Occupied Bandwidth Plots

      Low Channel




      Mid Channel




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High Channel




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Transmitter Power Spectral Density (PSD)
Engineer: Kenneth Lee
Test Date: 6/19/2018

                                                  Test Procedure

The EUT was connected directly to a spectrum analyzer. The Spectrum Analyzer was set to the following:

DTS channel center frequency
Span 1.5 x DTS bandwidth
RBW =3 kHz ≤ RBW ≤ 100 kHz
VBW ≥ 3 x RBW
Peak Detector
Sweep time = auto couple
Trace mode = max hold

The EUT was set to transmit at the lowest, middle and highest channels of the band at the maximum power levels. Once
the trace has stabilized the peak marker was used to determine the peak power spectral density.

                                                      Test Setup

                                                           10 dB
                          EUT                                                            Spectrum
                                                        Attenuator
                                                                                         Analyzer
                                                      (if necessary)




                                                   PSD Summary

                Frequency               Measured Data                  Specification Limit
                                                                                                Result
                  (MHz)                    (dBm)                             (dBm)
                   2402                      -11.46                            8                    Pass

                   2426                      -10.44                            8                    Pass

                   2480                      -10.27                            8                    Pass




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 PSD Plots

Low Channel




Mid Channel




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High Channel




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Test Equipment Utilized

                                                                                                  Last Cal       Cal Due
      Description               Manufacturer                  Model #             CT Asset #
                                                                                                   Date           Date
EMI Receiver               HP                        8546A                       i00033          3/26/18       3/26/19

Horn Antenna               EMCO                      3115                        i00103          2/3/17        2/3/19

Bi-Log antenna             Chase                     CBL6111C                    i00267          3/8/18        3/8/20

Humidity / Temp Meter      Newport                   IBTHX-W-5                   i00282          6/9/17        6/9/18

Bi-Log Antenna             Schaffner                 CBL 6111D                   i00349          8/3/16        8/3/18

EMI Analyzer               Agilent                   E7405A                      i00379          2/13/18       2/13/19
3 Meter Semi-Anechoic                                3 Meter Semi-Anechoic
                           Panashield                                            i00428          8/15/16       8/15/19
Chamber                                              Chamber
Spectrum Analyzer          Agilent                   E4407B                      i00331          11/21/17      11/21/18
Preamplifier for 1-18GHz                             AFS44 00101 400 23-
                           Miteq                                                 i00509          N/A           N/A
horn antenna                                         10P-44

In addition to the above listed equipment standard RF connectors and cables were utilized in the testing of the described
equipment. Prior to testing these components were tested to verify proper operation.




END OF TEST REPORT




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Document Created: 2018-06-25 16:06:00
Document Modified: 2018-06-25 16:06:00

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