Test report

FCC ID: PH29949

Test Report

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FCCID_4202612

                                                    Certification Report
                                                             FCC ID: PH29949
                                                             IC: 9290A-24078

                                 FCC Rule Part: 15.247
                   ISED Canada Radio Standards Specification: RSS-247


                                          Report Number: AT72141742-1P2

                                         Manufacturer: Dexcom, Inc
                                 Model: G6 Receiver (MT24078 / MT24078-X)
                                          ISED HVIN: MT24078-3

                                         Test Begin Date: December 27, 2018
                                          Test End Date: December 28, 2018

                                           Report Issue Date: March 14, 2019




                                           For Scope of Accreditation Under Certificate Number: 2955.09

This report must not be used by the client to claim product certification, approval, or endorsement by A2LA, NIST, or any agency of the
                                                         Federal Government.

              Prepared By:                                                                   Reviewed by:




              Jeremy Pickens                                                                 Ryan McGann
              Senior Wireless Engineer                                                       Team Leader
              TÜV SÜD America Inc.                                                           TÜV SÜD America Inc.
This test report shall not be reproduced except in full. This report may be reproduced in part with prior written consent of TUV SUD America. The results contained in
                                                this report are representative of the sample(s) submitted for evaluation.
                                                          This report contains 15 pages

                                5945 Cabot Parkway Suite 100 Alpharetta, GA 30005 USA Voice: 678-341-5900


                                                         TABLE OF CONTENTS
1      GENERAL ............................................................................................................................................ 3
    1.1       PURPOSE.......................................................................................................................................... 3
    1.2       PRODUCT DESCRIPTION ................................................................................................................... 3
    1.3       TEST METHODOLOGY AND CONSIDERATIONS ................................................................................. 4
2      TEST FACILITIES .............................................................................................................................. 5
    2.1     LOCATION ....................................................................................................................................... 5
    2.2     LABORATORY ACCREDITATIONS/RECOGNITIONS/CERTIFICATIONS ................................................ 5
    2.3     RADIATED EMISSIONS TEST SITE DESCRIPTION .............................................................................. 6
       2.3.1    Semi-Anechoic Chamber Test Site – Chamber A .................................................................... 6
       2.3.2    Semi-Anechoic Chamber Test Site – Chamber B .................................................................... 7
    2.4     CONDUCTED EMISSIONS TEST SITE DESCRIPTION ........................................................................... 8
       2.4.1    Conducted Emissions Test Site ............................................................................................... 8
3      APPLICABLE STANDARD REFERENCES.................................................................................... 9

4      LIST OF TEST EQUIPMENT ............................................................................................................ 9

5      SUPPORT EQUIPMENT ...................................................................................................................10

6      EQUIPMENT UNDER TEST SETUP BLOCK DIAGRAM ..........................................................10

7      SUMMARY OF TESTS ......................................................................................................................11
    7.1     ANTENNA REQUIREMENT – FCC: PART 15.203 ..............................................................................11
    7.2     POWER LINE CONDUCTED EMISSIONS – FCC 15.207, ISED CANADA: RSS-GEN 8.8.....................11
       7.2.1    Measurement Procedure ........................................................................................................11
       7.2.2    Measurement Results .............................................................................................................11
    7.3     EMISSION LEVELS ..........................................................................................................................13
       7.3.1    Emissions into Restricted Frequency Bands – FCC: Sections 15.205, 15.209, 15.247(d);
       ISED Canada: RSS-Gen 8.9 / 8.10 ........................................................................................................13
           7.3.1.1       Measurement Procedure ................................................................................................................... 13
       7.3.2          Test Results ............................................................................................................................14
       7.3.3          Sample Calculation: ..............................................................................................................14
8      ESTIMATION OF MEASUREMENT UNCERTAINTY ...............................................................15

9      CONCLUSION ....................................................................................................................................15




                                        5945 Cabot Parkway Suite 100 Alpharetta, GA 30005 USA


Model(s): G6 Receiver (MT24078)                 FCC ID: PH29949                 IC: 9290A-24078

1     GENERAL

1.1      Purpose

The purpose of this report is to demonstrate compliance with Part 15 Subpart C of the FCC’s
Code of Federal Regulations and Innovation, Science and Economic Development Canada’s
Radio Standards Specification RSS-247 for a Class II Permissive Change.

The purpose of this Class II Permissive Change is to address alternate parts due to obsolescence
in the digital device portion of the circuitry, PCB improvements to support these alternate
components and yield improvements, ESD protection improvements, and assembly
improvements.

1.2      Product description

Product Name: G6 Receiver (MT24078 / MT24078-X)

The Equipment Under Test (EUT) was a Dexcom, Inc. G6 Continuous Glucose Monitoring System (G6
Receiver). The EUT is a small hand-held device that is part of the G6 Continuous Glucose Monitoring
(GCM) System. The G6 Receiver communicates with a G6 Transmitter every 5 minutes over a Bluetooth
Low Energy wireless link. The display screen on the G6 Receiver shows sensor glucose readings, trend
graphs and trend arrows. The G6 Receiver also provides audible and vibratory alerts. The G6 receiver
contains a touch screen that is used to navigate menus and control the device. The G6 Receiver is
powered by a rechargeable lithium-polymer battery; also, it can be powered by an external power supply.

Note: The report applies to all localized versions of the receiver whose model number is either
MT24078 or MT24078-X, where the X is a single- or double-digit alphanumerical identifier used to
identify the localized / translated version of the user interface. All versions of the MT24078 and
MT24078-X devices have identical hardware configuration and wireless radio performance.

Technical Information (BLE):
Detail                         Description
Transmit Frequency /
                               2402 MHz – 2480 MHz
Alignment Range
Receiver Frequency /
                               2402 MHz – 2480 MHz
Alignment Range
Modulation Format              GFSK
Rated RF Output Power          +4dBm (Conducted)
Channel Spacing                2 MHz
Operating Voltage              5 VDC internal battery
Adaptive                       Yes
Antenna Type / Gain:           Ceramic Chip (Johnson Tech, P/N: 2450AT18A100E) / 0.5 dBi
Type of equipment:             Mobile

Manufacturer Information:
Dexcom, Inc.
6340 Sequence Dr.
San Diego, CA 92121

Test Sample Serial Number(s): PL83401367

Test Sample Condition: The test sample was provided in working order with no visible defects.

Report No: AT72141742-1P2            TÜV SÜD America, Inc.                                Page 3


Model(s): G6 Receiver (MT24078)                   FCC ID: PH29949                 IC: 9290A-24078

1.3   Test Methodology and Considerations

All modes of operation, including all available data rates, were evaluated during the original certification.
The data presented in this report represents the worst case where applicable. This evaluation for a Class
II Permissive Change is limited to Radiated Spurious Emissions and AC Power Line Conducted
Emissions only.

For Radiated Emissions, the EUT was programmed to generate a continuously modulated signal.
The EUT was evaluated in multiple orientations; the worst-case has been reported (X-Axis). See
test setup photos for more information.

For power line conducted emissions, the EUT was powered by a representative wall wart power supply.

Software power setting during test:      +4dBm




Report No: AT72141742-1P2             TÜV SÜD America, Inc.                                  Page 4


Model(s): G6 Receiver (MT24078)                 FCC ID: PH29949                 IC: 9290A-24078

2     TEST FACILITIES

2.1    Location

The radiated and conducted emissions test sites are located at the following addresses:

        TÜV SÜD America, Inc.
        5945 Cabot Pkwy, Suite 100
        Alpharetta, GA 30005
        Phone: (678) 341-5900


2.2    Laboratory Accreditations/Recognitions/Certifications

TÜV SÜD America, Inc. is accredited to ISO/IEC 17025 by the American Association for Laboratory
Accreditation/A2LA accreditation program and has been issued certificate number 2955.09 in recognition
of this accreditation.

Unless otherwise specified, all tests methods described within this report are covered under the ISO/IEC
17025 scopes of accreditation.

The Semi-Anechoic Chamber Test Sites and Conducted Emissions Sites have been fully described,
submitted to, and accepted by the FCC, ISED Canada and the Japanese Voluntary Control Council for
Interference by information technology equipment.

FCC Registration Number:               967699
ISED Canada Lab Code:                  23932
VCCI Member Number:                    1831
   VCCI Registration Number           A-0295




Report No: AT72141742-1P2           TÜV SÜD America, Inc.                                 Page 5


Model(s): G6 Receiver (MT24078)                   FCC ID: PH29949                  IC: 9290A-24078

2.3     Radiated Emissions Test Site Description

2.3.1    Semi-Anechoic Chamber Test Site – Chamber A

The Semi-Anechoic Chamber Test Site consists of a 20’ x 30’ x 18’ shielded enclosure. The chamber is
lined with Toyo Ferrite Grid Absorber, model number FFG-1000. The ferrite tile grid is 101 x 101 x 19mm
thick and weighs approximately 550 grams. These tiles are mounted on steel panels and installed
directly on the inner walls of the chamber.

The turntable is 5’ in diameter and is located 5’6” from the back wall of the chamber. The chamber is
grounded via 1 - 8’ copper ground rod, installed at the center of the back wall, it is bound to the ground
plane using 3/4" stainless steel braided cable.

The turntable is all steel, flush mounted EMCO Model 1060 installed in an all steel frame. The table is
remotely operated from inside the control room located 25’ from the range. The turntable is electrically
bonded to the surrounding ground plane via steel fingers installed on the edge of the turn table. The steel
fingers make constant contact with the ground plane during operation.

Behind the turntable is a 3’ x 6’ x 4’ deep shielded pit used for support equipment if necessary. The pit is
equipped with 1 - 4” PVC chase from the turntable to the pit that allows for cabling to the EUT if
necessary. The underside of the turntable can be accessed from the pit so cables can be supplied to the
EUT from the pit.

The chamber rear wall is covered with a mixture of Siepel pyramidal absorber. The side walls of the
chamber are partially covered with Siepel pyramidal absorber.

                                               30’




                                 Dimensions Not to Scale                          5’6”
                                                                                              20’

                   9’8”

                                                  3 Meters


                      4’3”




                   Figure 2.3.1-1: Semi-Anechoic Chamber Test Site – Chamber A


Report No: AT72141742-1P2            TÜV SÜD America, Inc.                                   Page 6


Model(s): G6 Receiver (MT24078)                 FCC ID: PH29949                 IC: 9290A-24078

2.3.2   Semi-Anechoic Chamber Test Site – Chamber B

The Semi-Anechoic Chamber Test Site consists of a 20’W x 30’L x 20’H shielded enclosure. The
chamber is lined with ETS-Lindgren Ferrite Absorber, model number FT-1500. The ferrite tile 600 mm x
600 mm (2.62 in x 23.62 in) panels and are mounted directly on the inner walls of the chamber shield.

The specular regions of the chamber are lined with additional ETS-Lindgren PS-600 hybrid absorber to
extend its frequency range up to 18GHz and beyond.

The turntable is a 2m ETS-Lindgren Model 2170 and installed off the center axis is located 5’6” from the
back wall of the chamber. The chamber is grounded via 1 - 8’ copper ground rod, installed at the center
of the back wall, it is bound to the shield using #8 solid copper wire.

The antenna mast is an EMCO 1060 and is remotely controlled from the control room for both antenna
height and polarization.




                  Figure 2.3.2-1: Semi-Anechoic Chamber Test Site – Chamber B




Report No: AT72141742-1P2           TÜV SÜD America, Inc.                                 Page 7


Model(s): G6 Receiver (MT24078)                   FCC ID: PH29949                  IC: 9290A-24078

2.4     Conducted Emissions Test Site Description

2.4.1    Conducted Emissions Test Site

The AC mains conducted EMI site is located in the main EMC lab. It consists of a 12’ x 10’ horizontal
coupling plane (HCP) as well as a 12’x8’ vertical coupling plane(VCP). The HGP is constructed of 4’ x 10’
sheets of particle board sandwiched by galvanized steel sheets. These panels are bonded using 11AWG
1/8” x 2” by 10’ galvanized sheet steel secured to the panels via by screws. The VCP is constructed of
three 4’x8’ sheets of 11AWG solid aluminum.

The HCP and VCP are electrically bonded together using 1”x1” angled aluminum secured with screws.

The site is of sufficient size to test table top and floor standing equipment in accordance with section 6.1.4
of ANSI C63.10.




                     Vertical Ground Plane
                     (12’ x 8’)




                                                         Non-Conductive EUT Table
                                                             (1m x 1.5m x .8m)


                 .4 Meters




                   .8 Meters

                                                           Horizontal Ground Plane
                                                           (12’ x 10’)
                  LISN

                               Figure 2.4.1-1: AC Mains Conducted EMI Site




Report No: AT72141742-1P2             TÜV SÜD America, Inc.                                  Page 8


  Model(s): G6 Receiver (MT24078)                                      FCC ID: PH29949                                 IC: 9290A-24078


  3        APPLICABLE STANDARD REFERENCES

  The following standards were used:

               ANSI C63.10-2013: American National Standard of Procedures for Compliance Testing of Unlicensed
                Wireless Devices
               US Code of Federal Regulations (CFR): Title 47, Part 2, Subpart J: Equipment Authorization Procedures,
                2018
               US Code of Federal Regulations (CFR): Title 47, Part 15, Subpart C: Radio Frequency Devices, Intentional
                Radiators, 2018
               ISED Canada Radio Standards Specification: RSS-247 – Digital Transmission Systems (DTSs), Frequency
                Hopping Systems (FHSs) and Licence-Exempt Local Area Network (LE-LAN) Devices, Issue 2, February
                2017.
               Innovation, Science and Economic Development Canada Radio Standards Specification: RSS-GEN            –
                General Requirements for Compliance of Radio Apparatus, Issue 5, April 2018.

  4        LIST OF TEST EQUIPMENT

  The calibration interval of test equipment is annually or the manufacturer’s recommendations. Where the
  calibration interval deviates from the annual cycle based on the instrument manufacturer’s
  recommendations, it shall be stated below.

                                                     Table 4-1: Test Equipment
                                                                                                                        Last Calibration   Calibration Due
Asset ID           Manufacturer             Model                     Equipment Type                   Serial Number
                                                                                                                              Date               Date
   30          Spectrum Technologies      DRH-0118                 1-18GHz Horn Antenna                   970102          05/09/2017         05/09/2019
  144                 Omega                 RH411                  Temp / Humidity Meter                 H0103373         10/24/2018         10/24/2020
  321             Hewlett Packard         HPC 8447D                  Low Freq. Pre-Amp                  1937A02809        09/12/2018         09/12/2019
  324                   ACS                Belden                   Conducted EMI Cable                    8214           04/05/2018         04/05/2019
  335                 Suhner               SF-102A                     Cable (40GHZ)                      882/2A          07/10/2018         07/10/2019
  338             Hewlett Packard           8449B                 High Frequency Pre-Amp                3008A01111        07/11/2017         07/11/2019
  628                  EMCO                  6502            Active Loop Antenna 10kHz-30MHz             9407-2877        02/11/2016         02/11/2019
  651             Rohde & Schwarz          TS-PR26            18GHz to 26.5GHz Pre-Amplifier              100023          07/10/2018         07/10/2019
                                                             High Frequency Antenna 18GHz to
  652            Rohde & Schwarz           3160-09                                                     060922-21894          NCR                NCR
                                                                           26.5GHz
                                                            EMI Receiver; RF Input 50ohm; 10Hz-
  813                  PMM                   9010                                                      697WW30606         02/12/2018         02/12/2019
                                                                     50MHz; 10Hz-30MHz
  819            Rohde & Schwarz            ESR26                     EMI Test Receiver                   101345          11/06/2018         11/06/2019
                                                          ASAC Cable Set Consisting of 566, 619, and
  851              TUV ATLANTA         FMC0101951-100CM                                                    N/A            09/26/2018         09/26/2019
                                                                             643
 852                 Teseq                CBL 6112D              Bilog Antenna; Attenuator                51617           10/15/2018         10/15/2019
 3010            Rohde & Schwarz           ENV216                   Two-Line V-Network                     3010           07/11/2018         07/11/2019




  Report No: AT72141742-1P2                           TÜV SÜD America, Inc.                                                         Page 9


Model(s): G6 Receiver (MT24078)                 FCC ID: PH29949                 IC: 9290A-24078

5   SUPPORT EQUIPMENT
                                     Table 5-1: Support Equipment
     Item #     Type Device          Manufacturer               Model/Part #               Serial #
                                   Dongguan Shilong
       1       AC/DC Adapter                               UES06WNCPU-050100SPA                NA
                                   Fuhua Elec Co LTD

                                     Table 5-2: Cable Description
     Cable #           Cable Type               Length            Shield              Termination
        A              Micro USB                    1m              Yes                 EUT-1

6   EQUIPMENT UNDER TEST SETUP BLOCK DIAGRAM




                                                    EUT




                                                                 AC Conducted Emissions Only
                                                         (A)
                                                                           AC/DC
                                                                           Adapter
                                                                             (1)


                                                                           AC Mains


                               Figure 6-1: EUT System Block Diagram




Report No: AT72141742-1P2            TÜV SÜD America, Inc.                                Page 10


Model(s): G6 Receiver (MT24078)                       FCC ID: PH29949                IC: 9290A-24078

7      SUMMARY OF TESTS

Along with the tabular data shown below, plots were taken of all signals deemed important
enough to document.

7.1      Antenna Requirement – FCC: Part 15.203

The antenna is a Ceramic Chip (Johnson Tech, P/N: 2450AT18A100E) and is non-detachable
without compromising the device, therefore satisfying Part 15.203. The antenna gain is 0.5 dBi.

7.2      Power Line Conducted Emissions – FCC 15.207, ISED Canada: RSS-Gen 8.8

7.2.1        Measurement Procedure

ANSI C63.10 section 6 was the guiding documents for this evaluation. Conducted emissions were
performed from 150kHz to 30MHz with the spectrum analyzer’s resolution bandwidth set to 9kHz and the
video bandwidth set to 30kHz. The calculation for the conducted emissions is as follows:

Corrected Reading = Analyzer Reading + LISN Loss + Cable Loss
Margin = Corrected Reading - Applicable Limit

7.2.2        Measurement Results
Performed by: Jeremy Pickens

                                Table 7.2.2-1: Conducted EMI Results Line 1

                    Corrected Reading                 Limit                            Margin
Frequency
  (MHz)
                 Quasi-Peak    Average      Quasi-Peak        Average   Quasi-Peak     Average        Correction
                  (dBuV)       (dBuV)         (dBuV)           (dBuV)      (dB)         (dB)             (dB)
      0.15         44.55        26.65          66               56        -21.45        -29.35             9.59
    0.154          47.37        30.15         65.78            55.78      -18.41        -25.63             9.58
      0.17         47.08        28.34         65.16            55.16      -18.08        -26.82             9.58
      0.18         46.06        28.24         64.58            54.58      -18.52        -26.34             9.58
      0.19         44.61        25.37         64.04            54.04      -19.43        -28.67             9.58
      0.20         44.56        27.41         63.53            53.53      -18.97        -26.12             9.58
      0.23         44.12        25.67          62.6            52.6       -18.48        -26.93             9.58
      0.24         42.59        22.41         62.03            52.03      -19.44        -29.62             9.58
      0.26         40.87         22.4          61.5            51.5       -20.63         -29.1             9.58
      0.40         39.75         22.4          57.9            47.9       -18.15         -25.5             9.59




Report No: AT72141742-1P2                TÜV SÜD America, Inc.                                   Page 11


Model(s): G6 Receiver (MT24078)                  FCC ID: PH29949                IC: 9290A-24078

                           Table 7.2.2-2: Conducted EMI Results Line 2

               Corrected Reading                 Limit                            Margin
Frequency
  (MHz)
            Quasi-Peak    Average      Quasi-Peak        Average   Quasi-Peak     Average       Correction
             (dBuV)       (dBuV)         (dBuV)           (dBuV)      (dB)         (dB)            (dB)
   0.15       19.29        13.17          66               56        -46.71        -42.83            9.59
  0.154       39.76        29.01         65.78            55.78      -26.02        -26.77            9.58
   0.17       31.37        16.22         65.16            55.16      -33.79        -38.94            9.58
   0.18       25.28         11.6         64.58            54.58      -39.3         -42.98            9.58
   0.20       36.25        28.95         63.69            53.69      -27.44        -24.74            9.58
   0.21       35.22        29.73         63.21            53.21      -27.99        -23.48            9.58
   0.23        31          10.84          62.6            52.6       -31.6         -41.76            9.58
   0.24       30.92        12.86         62.17            52.17      -31.25        -39.31            9.58
   0.25        29.2        24.68         61.76            51.76      -32.56        -27.08            9.58
   0.27       27.22        23.83         61.12            51.12      -33.9         -27.29            9.59




Report No: AT72141742-1P2           TÜV SÜD America, Inc.                                  Page 12


Model(s): G6 Receiver (MT24078)                 FCC ID: PH29949                 IC: 9290A-24078

7.3     Emission Levels

7.3.1    Emissions into Restricted Frequency Bands – FCC: Sections 15.205, 15.209,
         15.247(d); ISED Canada: RSS-Gen 8.9 / 8.10

7.3.1.1 Measurement Procedure

Radiated emissions tests were made over the frequency range of 9 kHz to 25 GHz, 10 times the
highest fundamental frequency.

Measurements below 30 MHz were performed with a 3 meter separation distance between the
EUT and measurement antenna. The EUT was rotated 360° to maximize each emission. The
magnetic loop receiving antenna was positioned with its lowest point 1 meter above the ground.
The loop antenna was aligned along the site axis, orthogonal to the site axis, and ground-parallel
to the site axis.

The spectrum analyzer’s resolution and video bandwidths were set to 200 Hz and 1000 Hz
respectively for frequencies below 150 kHz and 9 kHz and 30 kHz respectively for frequencies
above 150 kHz and below 30 MHz.

For measurements above 30 MHz, the EUT was rotated through 360° and the receive antenna
height was varied from 1 meter to 4 meters so that the maximum radiated emissions level would
be detected. For frequencies below 1000 MHz, measurements were made using a resolution
bandwidth (RBW) of 120 kHz and a video bandwidth (VBW) of 300 kHz. For frequencies above
1000 MHz, measurements were made with RBW of 1 MHz and a VBW of 3 MHz.

Each emission found to be in a restricted band as defined by section 15.205, was compared to the
radiated emission limits as defined in section 15.209.




Report No: AT72141742-1P2           TÜV SÜD America, Inc.                                Page 13


Model(s): G6 Receiver (MT24078)                           FCC ID: PH29949                    IC: 9290A-24078

7.3.2    Test Results
Performed by: Jeremy Pickens

Radiated spurious emissions are reported in Table 7.3.2-1. Emissions not reported were below
the noise floor of the measurement system. There were emissions detected between 30 and
1000MHz, but these were determined by comparison scans to not be related to the radio module
and fall under the Subpart B Section 15.109 unintentional emissions requirements.

                   Table 7.3.2-1: Radiated Emissions – Bluetooth Low Energy
                         Level       Antenna    Correction    Corrected Level       Limit               Margin
  Frequency             (dBuV)       Polarity    Factors         (dBuV/m)         (dBuV/m)               (dB)
    (MHz)
                 pk        Qpk/Avg    (H/V)        (dB)        pk     Qpk/Avg   pk     Qpk/Avg    pk      Qpk/Avg
                                        Spurious Emissions - Low Channel
     2390       53.20       33.80       H         -3.90       49.30    29.90    74.0    54.0     24.7       24.1
     2390       52.10       33.90       V         -3.90       48.20    30.00    74.0    54.0     25.8       24.0
     4804       46.10       32.50       H          4.13       50.23    36.27    74.0    54.0     23.8       17.7
     4804       47.1        34.1        V          4.13       51.23    37.87    74.0    54.0     22.8       16.1
                                        Spurious Emissions - Mid Channel
     4880        46.6        32.3       H          4.47       51.07    36.77    74.0    54.0     22.9       17.2
     4880         47         33.3       V          4.47       51.47    37.77    74.0    54.0     22.5       16.2
     7320        47.7        33.7       H         10.14       57.84    43.84    74.0    54.0     16.2       10.2
     7320         47         33.3       V         10.14       57.14    43.44    74.0    54.0     16.9       10.6
                                        Spurious Emissions - High Channel
    2483.5      59.9        36.1        H         -3.46       56.44    32.64    74.0    54.0     17.6       21.4
    2483.5      60.2        36.2        V         -3.46       56.74    32.74    74.0    54.0     17.3       21.3
     4960       46.90       33.00       H          4.83       51.73    37.83    74.0    54.0     22.3       16.2
     4960       47.80       35.70       V          4.83       52.63    40.53    74.0    54.0     21.4       13.5
     7440       47.70       33.70       V         10.23       57.93    43.93    74.0    54.0     16.1       10.1




7.3.3    Sample Calculation:

RC = RU + CFT

Where:
CFT      =        Total Correction Factor (AF+CA+AG)-DC (Average Measurements Only)
RU       =        Uncorrected Reading
RC       =        Corrected Level
AF       =        Antenna Factor
CA       =        Cable Attenuation
AG       =        Amplifier Gain
DC       =        Duty Cycle Correction Factor

Example Calculation: Peak – High Channel – 7440MHz– Vertical polarity
Corrected Level: 47.70 + 10.23 = 57.93dBuV
Margin: 74dBuV – 57.93dBuV = 16.1dB

Example Calculation: Average – High Channel – 7440MHz– Vertical polarity
Corrected Level: 33.70 + 10.23 = 43.93dBuV
Margin: 54dBuV – 43.93dBuV = 10.1dB




Report No: AT72141742-1P2                   TÜV SÜD America, Inc.                                        Page 14


Model(s): G6 Receiver (MT24078)               FCC ID: PH29949               IC: 9290A-24078

8   ESTIMATION OF MEASUREMENT UNCERTAINTY

The expanded laboratory measurement uncertainty figures (ULab) provided below correspond to an
expansion factor (coverage factor) k = 1.96 which provide confidence levels of 95%.

                        Table 8-1: Estimation of Measurement Uncertainty
                                   Parameter                            Ulab
               Occupied Channel Bandwidth                                ± 0.009 %
               RF Conducted Output Power                                ± 0.349 dB
               Power Spectral Density                                   ± 0.372 dB
               Antenna Port Conducted Emissions                         ± 1.264 dB
               Radiated Emissions ≤ 1 GHz                               ± 5.814 dB
               Radiated Emissions > 1 GHz                               ± 4.318 dB
               Temperature                                              ± 0.860 °C
               Radio Frequency                                         ± 2.832 x 10-8
               AC Power Line Conducted Emissions                        ± 3.360 dB

9   CONCLUSION

In the opinion of TÜV SÜD America Inc. the G6 Receiver (MT24078) manufactured by Dexcom,
Inc met the requirements of FCC Part 15 subpart C and Innovation, Science and Economic
Development Canada’s Radio Standards Specification RSS-247 for the tests documented herein.




                                   END REPORT



Report No: AT72141742-1P2         TÜV SÜD America, Inc.                                 Page 15



Document Created: 2019-03-14 07:44:02
Document Modified: 2019-03-14 07:44:02

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