03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc

Garmin International Inc Wireless Heart Rate Monitor

Page 1 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 2 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 3 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 4 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 5 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 6 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 7 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 8 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 9 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 10 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 11 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 12 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 13 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 14 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 15 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 16 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 17 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 18 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 19 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 20 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 21 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 22 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 23 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 24 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 25 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 26 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 27 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 28 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 29 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 30 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 31 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 32 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 33 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 34 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 35 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 36 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 37 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 38 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 39 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 40 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 41 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 42 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 43 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 44 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 45 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 46 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 47 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 48 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 49 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 50 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 51 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 52 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 53 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Page 54 of 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc

FCC/ISED Test Report
Prepared for:
Garmin International Inc.
Address:
1200 E. 151st Street
Olathe, Kansas, 66062, USA
Product:
A03711
Test Report No:
R20181004-20-03B
Approved by:
__________________
Nic S. Johnson, NCE
Technical Manager
iNARTE Certified EMC Engineer #EMC-003337-NE
DATE:
28 December 2018
Total Pages:
54
The Nebraska Center for Excellence in Electronics (NCEE) authorizes the above named company to
reproduce this report provided it is reproduced in its entirety for use by the company’s employees only. Any
use that a third party makes of this report, or any reliance on or decisions made based on it, are the
responsibility of such third parties. NCEE accepts no responsibility for damages, if any, suffered by any third
party as a result of decisions made or actions based on this report. This report applies only to the items tested.
Report Number: R201810004-20-03B
Rev
Prepared for: Garmin
REVISION PAGE
Rev. No.
Date
18 December 2018
20 December 2018
28 December 2018
Description
Original – NJohnson
Prepared by NJohnson
Changed modulation description -NJ
Removed any reference to a USB connection. The device has no
USB connection and powers only off of a disposable coin cell. -NJ
Includes NCEE Labs report R20181010-20-03A and its amendment
in full.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 2 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
CONTENTS
Revision Page ............................................................................................................................................................................... 2
Tables of Figures .......................................................................................................................................................................... 4
1.0
Summary of test results ................................................................................................................................................. 5
2.0
EUT Description ............................................................................................................................................................. 6
2.1
Equipment under test ........................................................................................................................................... 6
2.2
Description of test modes .................................................................................................................................... 7
2.3
Description of support units ................................................................................................................................. 7
3.0
Laboratory description ................................................................................................................................................... 8
3.1
Laboratory description .......................................................................................................................................... 8
3.2
Test personnel ....................................................................................................................................................... 8
3.3
Test equipment...................................................................................................................................................... 9
4.0
Detailed results ............................................................................................................................................................. 10
4.1
Duty Cycle ............................................................................................................................................................ 10
4.2
Radiated emissions ............................................................................................................................................ 11
4.3
Peak Output Power ............................................................................................................................................ 30
4.4
Bandwidth ............................................................................................................................................................ 37
4.5
Band edges .......................................................................................................................................................... 45
Appendix A: Sample Calculation .............................................................................................................................................. 51
Appendix B – Measurement Uncertainty................................................................................................................................. 53
REPORT END ............................................................................................................................................................................. 54
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 3 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
TABLES OF FIGURES
Figure Number
Page
Figure 1 - Radiated Emissions Test Setup ................................................................................................................. 13
Figure 2 - Radiated Emissions Plot, Receive, GFSK ................................................................................................. 14
Figure 3 - Radiated Emissions Plot, Receive, GMSK ................................................................................................. 16
Figure 4 - Radiated Emissions Plot, Low Channel, GFSK ......................................................................................... 18
Figure 5 - Radiated Emissions Plot, Mid Channel, GFSK .......................................................................................... 20
Figure 6 - Radiated Emissions Plot, High Channel .................................................................................................... 22
Figure 7 - Radiated Emissions Plot, Low Channel, GMSK ......................................................................................... 24
Figure 8 - Radiated Emissions Plot, Mid Channel, GMSK ......................................................................................... 26
Figure 9 - Radiated Emissions Plot, High Channel, GMSK ........................................................................................ 28
Figure 10 – Output Power, Low Channel, GMSK ....................................................................................................... 31
Figure 11 – Output Power, Mid Channel, GMSK ........................................................................................................ 32
Figure 12 – Output Power, High Channel, GMSK ...................................................................................................... 33
Figure 13 - Output Power, Low Channel, GFSK ........................................................................................................ 34
Figure 14 - Output Power, Mid Channel, GFSK ......................................................................................................... 35
Figure 15 - Output Power, High Channel, GFSK ........................................................................................................ 36
Figure 16 - Bandwidth Measurements Test Setup ..................................................................................................... 38
Figure 17 – Occupied Bandwidth, Low Channel, GMSK ............................................................................................ 39
Figure 18 - Occupied Bandwidth, Mid Channel, GMSK ............................................................................................. 40
Figure 19 - Occupied Bandwidth, High Channel, GMSK ............................................................................................ 41
Figure 20 – Occupied Bandwidth, Low Channel, GFSK............................................................................................. 42
Figure 21 - Occupied Bandwidth, Mid Channel, GFSK .............................................................................................. 43
Figure 22 - Occupied Bandwidth, High Channel, GFSK ............................................................................................. 44
Figure 24 - Band Edge, Low Channel, GMSK ............................................................................................................ 47
Figure 25 – Restricted Band Edge, High Channel, GMSK ......................................................................................... 48
Figure 28 –Band Edge, Low Channel, GFSK ............................................................................................................. 49
Figure 29 – Band Edge Measurement, High Channel, GFSK .................................................................................... 50
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 4 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
1.0
SUMM ARY OF TEST RESULTS
The EUT has been tested according to the following specifications:
(1) US Code of Federal Regulations, Title 47, Part 15
(2) ISED RSS-Gen, Issue 5
(3) ISED RSS-210, Issue 9
SUMMARY
Requirement
Test Type and Limit
Result
Remark
FCC 15.203
Unique Antenna Requirement
Pass
PCB antenna
FCC 15.35
RSS-Gen, 6.10
Duty cycle of pulsed emissions
N/A
Informational Purpose Only
FCC 15.209
RSS-Gen, 7.1
Receiver Radiated Emissions
Pass
Meets the requirement of
the limit.
NA
Minimum Bandwidth
N/A
Informational Purpose Only
Maximum Peak Output Power
N/A
Informational Purpose Only
Transmitter Radiated Emissions
Pass
Meets the requirement of
the limit.
Band Edge Measurement
Pass
Meets the requirement of
the limit.
Conducted AC Emissions
NA
No provisions for connection
to AC mains
NA
FCC 15.209
RSS-Gen, 8.9
RSS-210 A1.2
FCC 15.249(a)
FCC 15.209, 15.205
RSS-Gen, 8.9
RSS-249, 5.5
FCC 15.207
RSS-Gen. 8.8
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 5 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
2.0
EUT DESCRIPTION
2.1
EQUIPMENT UNDER TEST
Summary
The Equipment Under Test (EUT) was a battery powered GMSK and GFSK transceiver manufactured by
GARMIN inc.
EUT
EUT Received
EUT Tested
Serial No.
A03711
2018 October 20
2018 December 14 (conducted measurement sample)
2018 Nov 6 – 11
2018 Dec 17 (conducted measurements only)
16825 (integrated antenna)
61899 (SMA connector in place of antenna)
Operating Band
2400 – 2483.5 MHz
Device Type
GMSK, GFSK
Power Supply
CR2032 3V battery, disposable. There are no provisions for recharging
or connecting an external power source.
NOTE: For more detailed features description, please refer to the manufacturer's specifications or user's
manual.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 6 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
2.2
DESCRIPTION OF TEST MODES
The EUT operates on, and was tested at the frequencies below:
Channel
Low
Mid
High
Frequency
2402 MHz
2440 MHz
2480 MHz
These are the only three representative channels tested in the frequency range according to FCC Part
15.31 and RSS-Gen Table A1. See the operational description for a list of all channel frequency and
designations.
This EUT was set to transmit in a worse-case scenario with modulation on. The manufacturer modified the
unit to transmit continuously on the lowest, middle and highest frequency channels.
2.3
DESCRIPTION OF SUPPORT UNITS
None
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 7 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
3.0
LABORATORY DESCRIPTION
3.1
LABORATORY DESCR IPTION
All testing was performed at the following Facility:
The Nebraska Center for Excellence in Electronics (NCEE Labs)
4740 Discovery Drive
Lincoln, NE 68521
A2LA Certificate Number:
FCC Accredited Test Site Designation No:
Industry Canada Test Site Registration No:
NCC CAB Identification No:
1953.01
US1060
4294A-1
US0177
Environmental conditions varied slightly throughout the tests:
Relative humidity of 35  4%
Temperature of 22  3 Celsius
3.2
No.
TEST PERSONNEL
PERSONNEL
TITLE
ROLE
Nic Johnson
Technical Manager
All testing
Notes:
All personnel are permanent staff members of NCEE Labs. No testing or review was sub-contracted or
performed by sub-contracted personnel.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 8 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
3.3
TEST EQUIPMENT
DESCRIPTION AND
MANUFACTURER
MODEL NO.
SERIAL NO.
LAST
CALIBRATION
DATE
CALIBRATION
DUE DATE
Rohde & Schwarz Test Receiver
ES126
100037
30 Jan 2018
30 Jan 2019
EMCO Biconilog Antenna
3142B
1647
02 Aug 2017
02 Aug 2019
EMCO Horn Antenna
3115
6416
26 Jan 2018
26 Jan 2020
EMCO Horn Antenna
3116
2576
31 Jan 2018
31 Jan 2020
Rohde & Schwarz Preamplifier
TS-PR18
3545700803
09 Mar 2018*
09 Mar 2019*
Trilithic High Pass Filter
6HC330
23042
09 Mar 2018*
09 Mar 2019*
Rohde & Schwarz LISN
ESH3-Z5
836679/010
25 Jul 2017
25 Jul 2018
RF Cable (preamplifier to antenna)
MFR-57500
01-07-002
09 Mar 2018*
09 Mar 2019*
FSCM 64639
01E3872
09 Mar 2018*
09 Mar 2019*
FSCM 64639
01E3874
09 Mar 2018*
09 Mar 2019*
FSCM 64639
01E3871
09 Mar 2018*
09 Mar 2019*
FSCM 64639
01F1206
09 Mar 2018*
09 Mar 2019*
TS-RSP
1113.5503.14
09 Mar 2018*
09 Mar 2019*
PE9128
NCEEBH1
09 Mar 2018*
09 Mar 2019*
PE9128
NCEEBH2
09 Mar 2018*
09 Mar 2019*
RF Cable (antenna to 10m
chamber bulkhead)
RF Cable (10m chamber bulkhead
to control room bulkhead)
RF Cable (Control room bulkhead
to RF switch)
RF Cable (RF switch to test
receiver)
RF switch – Rohde and Schwarz
N connector bulkhead (10m
chamber)
N connector bulkhead (control
room)
*Internal Characterization
Notes:
All equipment is owned by NCEE Labs and stored permanently at NCEE Labs facilities.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 9 of 54
Report Number: R20180514-24-01B
Prepared for: Garmin
4.0
DET AILED RESULT S
4.1
DUTY CYCLE
Test Method:
ANSI C63.10-2013, Section 7.5
Not required.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 10 of 54
Rev
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
4.2
RADIATED EMISSIONS
Test Method:
ANSI C63.10-2013, Section 6.5, 6.6
Limits for radiated emissions measurements:
Emissions radiated outside of the specified bands shall be applied to the limits in 15.209 as
followed:
FREQUENCIES
(MHz)
0.009-0.490
0.490-1.705
1.705-30.0
30-88
88-216
216-960
Above 960
FIELD
STRENGTH
(µV/m)
2400/F(kHz)
24000/F(kHz)
30
100
150
200
500
MEASUREMENT
DISTANCE (m)
300
30
NOTE:
1. The lower limit shall apply at the transition frequencies.
2. Emission level (dBuV/m) = 20 * log * Emission level (μV/m).
3. As shown in 15.35(b), for frequencies above 1000MHz, the field strength limits are based on
average detector, however, the peak field strength of any emission shall not exceed the maximum
permitted average limits by more than 20dB under any condition of modulation.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 11 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Test procedures:
a. The EUT was placed on the top of a rotating Table above the ground plane in a 10 meter semianechoic chamber. The Table was rotated 360 degrees to determine the position of the highest
radiation. The Table was 0.8m high for measurements form 30MHz-1Ghz and 1.5m for
measurements from 1GHz and higher.
b. The EUT was set 3 meters away from the interference-receiving antenna, which was mounted on
the top of a variaGMSK-height antenna tower.
c. The antenna was a broadband antenna, and its height is varied from one meter to four meters
above the ground to determine the maximum value of the field strength. Both horizontal and vertical
polarizations of the antenna are used to make the measurement.
d. For each suspected emission, the EUT was arranged to maximize its emissions and then the
antenna height was varied from 1 meter to 4 meters and the rotating Table was turned from 0
degrees to 360 degrees to find the maximum emission reading.
e. The test-receiver system was set to use a peak detector with a specified resolution bandwidth.
For spectrum analyzer measurements, the composite maximum of several analyzer sweeps was
used for final measurements.
f. If the emission level of the EUT in peak mode was 10dB lower than the limit specified, then
testing could be stopped and the peak values of the EUT would be reported. Otherwise the
emissions that did not have 10 dB margin would be re-tested one by one using peak, quasi-peak or
average method as specified and then reported in a data sheet.
g. The EUT was maximized in all 3 orthogonal positions. The results are presented for the axis that
had the highest emissions.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 12 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
NOTE:
1. The resolution bandwidth and video bandwidth of test receiver/spectrum analyzer is 120kHz for
Peak detection (PK) and Quasi-peak detection (QP) at frequencies below 1GHz.
2. The resolution bandwidth 1 MHz for all measurements and at frequencies above 1GHz, A peak
detector was used for all measurements above 1GHz. Measurements were made with an EMI
Receiver.
Deviations from test standard:
No deviation.
Test setup:
Figure 1 - Radiated Emissions Test Setup
EUT operating conditions
The EUT was powered by 5 VDC unless specified and set to transmit continuously on the lowest
and highest frequency channels.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 13 of 54
Report Number: R20180514-24-01B
Prepared for: Garmin
Test results:
Figure 2 - Radiated Emissions Plot, Receive, GFSK
REMARKS:
1. Emission level (dBuV/m) = Raw Value (dBuV) + Correction Factor (dB)
2. Correction Factor (dB/m) = Antenna Factor (dB/m) + Cable Factor (dB)
3. The other emission levels were very low against the limit.
4. Margin value = Emission level – Limit value
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 14 of 54
Rev
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Table 1 - Radiated Emissions Quasi-peak Measurements, Receive, GFSK
Frequency Level
Limit
Margin
MHz
dBµV/m dBµV/m dB
75.660000
-5.73
29.5
35.3
Height
cm.
249.0
Angle
deg.
96
Axis
Pol
Table 2 - Radiated Emissions Peak Measurement vs Average Limits, Receive, GFSK
Frequency
MHz
1003.500000
Level
Limit
Margin
dBµV/m dBµV/m dB
43.86
54.00
10.14
Height
cm.
130.0
Angle
deg.
229
Pol
Axis
Peak measurements were compared to average limit and found to be compliant so average measurements were
not performed
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 15 of 54
Report Number: R20180514-24-01B
Prepared for: Garmin
Figure 3 - Radiated Emissions Plot, Receive, GMSK
REMARKS:
1. Emission level (dBuV/m) = Raw Value (dBuV) + Correction Factor (dB)
2. Correction Factor (dB/m) = Antenna Factor (dB/m) + Cable Factor (dB)
3. The other emission levels were very low against the limit.
4. Margin value = Emission level – Limit value
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 16 of 54
Rev
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Table 3 - Radiated Emissions Quasi-peak Measurements, Receive, GMSK
Frequency Level
Limit
Margin
MHz
dBµV/m dBµV/m dB
Height
cm.
Angle
deg.
Axis
Pol
All measured values at least 10 dB below limit
Table 4 - Radiated Emissions Peak Measurement vs Average Limits, Receive, GMSK
Frequency
MHz
1000.500000
Level
Limit
Margin
dBµV/m dBµV/m dB
47.96
54.0
6.04
Height
cm.
100.0
Angle
deg.
277
Pol
Axis
Peak measurements were compared to average limit and found to be compliant so average measurements were
not performed
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 17 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Figure 4 - Radiated Emissions Plot, Low Channel, GFSK
REMARKS:
1. Emission level (dBuV/m) = Raw Value (dBuV) + Correction Factor (dB)
2. Correction Factor (dB/m) = Antenna Factor (dB/m) + Cable Factor (dB)
3. The other emission levels were very low against the limit.
4. Margin value = Emission level – Limit value
Table 5 - Radiated Emissions Quasi-peak Measurements, Low Channel
Frequency Level
Limit
Margin
MHz
dBµV/m dBµV/m dB
95.16000
-6.23
33.0
39.3
862.240000
12.87
35.5
22.7
Height
cm.
250.0
101.0
Angle
deg.
333
348
Pol
Axis
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 18 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Table 6 - Radiated Emissions Peak Measurements, Low Channel, GFSK
Axis
Frequency
Level
Limit
Margin Height Angle
Pol
MHz
dBµV/m dBµV/m dB
cm.
deg.
2402.000000
92.04
93.98
1.94
170
114
All peak measurements were at least 10 dB below the average limit
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 19 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Figure 5 - Radiated Emissions Plot, Mid Channel, GFSK
REMARKS:
1. Emission level (dBuV/m) = Raw Value (dBuV) + Correction Factor (dB)
2. Correction Factor (dB/m) = Antenna Factor (dB/m) + Cable Factor (dB)
3. The other emission levels were very low against the limit.
4. Margin value = Emission level – Limit value
Table 6 - Radiated Emissions Quasi-peak Measurements, Mid Channel
Frequency Level
Limit
Margin
MHz
dBµV/m dBµV/m dB
130.620000
-2.79
33.0
35.8
519.520000
8.89
35.5
26.7
Height
cm.
99.0
136.0
Angle
deg.
63
134
Pol
Axis
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 20 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Table 7 - Radiated Emissions Peak Measurements, Mid Channel, GFSK
Axis
Frequency
Level
Limit
Margin Height Angle
Pol
MHz
dBµV/m dBµV/m dB
cm.
deg.
2440.000000
93.35
93.98
0.63
153.0
107
All peak measurements were at least 10 dB below the average limit
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 21 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Figure 6 - Radiated Emissions Plot, High Channel
REMARKS:
1. Emission level (dBuV/m) = Raw Value (dBuV) + Correction Factor (dB)
2. Correction Factor (dB/m) = Antenna Factor (dB/m) + Cable Factor (dB)
3. The other emission levels were very low against the limit.
4. Margin value = Emission level – Limit value.
Table 8 - Radiated Emissions Quasi-peak Measurements, High Channel, GFSK
Frequency Level
Limit
Margin
MHz
dBµV/m dBµV/m dB
34.080000
0.12
29.5
29.4
709.180000
12.18
35.5
23.4
Height
cm.
286.0
250.0
Angle
deg.
54
243
Pol
Axis
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 22 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Table 9 - Radiated Emissions Peak Measurements, High Channel, GFSK
Frequency
Level
Limit
Margin Height Angle
Pol
Axis
MHz
dBµV/m dBµV/m dB
cm.
deg.
2480.000000 93.83
93.98
0.15
150.0
132
All peak measurements were at least 10 dB below the average limit
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 23 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Figure 7 - Radiated Emissions Plot, Low Channel, GMSK
REMARKS:
1. Emission level (dBuV/m) = Raw Value (dBuV) + Correction Factor (dB)
2. Correction Factor (dB/m) = Antenna Factor (dB/m) + Cable Factor (dB)
3. The other emission levels were very low against the limit.
4. Margin value = Emission level – Limit value
Table 10 - Radiated Emissions Quasi-peak Measurements, Low Channel, GMSK
Frequency Level
Limit
Margin
MHz
dBµV/m dBµV/m dB
30.840000
2.50
29.5
27.0
708.040000
12.17
25.1
23.4
Height
cm.
272.0
350.0
Angle
deg.
174
28
Pol
Axis
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 24 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Table 11 - Radiated Emissions Peak Measurements, Low Channel, GMSK
Axis
Frequency
Level
Limit
Margin Height Angle
Pol
MHz
dBµV/m dBµV/m dB
cm.
deg.
2402.000000
92.30
93.98
1.68
234.0
122
All peak measurements were at least 10 dB below the average limit
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 25 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Figure 8 - Radiated Emissions Plot, Mid Channel, GMSK
REMARKS:
1. Emission level (dBuV/m) = Raw Value (dBuV) + Correction Factor (dB)
2. Correction Factor (dB/m) = Antenna Factor (dB/m) + Cable Factor (dB)
3. The other emission levels were very low against the limit.
4. Margin value = Emission level – Limit value
Table 12 - Radiated Emissions Quasi-peak Measurements, Low Channel
Frequency
MHz
90.720000
709.06000
Level
Limit
Margin
dBµV/m dBµV/m dB
-5.27
33.0
38.3
12.15
35.5
23.4
Height
cm.
349.0
142.0
Angle
deg.
248
34
Pol
Axis
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 26 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Table 13 - Radiated Emissions Peak Measurements, Low Channel, GMSK
Axis
Frequency
Level
Limit
Margin Height Angle
Pol
MHz
dBµV/m dBµV/m dB
cm.
deg.
2440.000000
92.83
93.98
1.15
100
113
All peak measurements were at least 10 dB below the average limit
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 27 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Figure 9 - Radiated Emissions Plot, High Channel, GMSK
REMARKS:
1. Emission level (dBuV/m) = Raw Value (dBuV) + Correction Factor (dB)
2. Correction Factor (dB/m) = Antenna Factor (dB/m) + Cable Factor (dB)
3. The other emission levels were very low against the limit.
4. Margin value = Emission level – Limit value
Table 14 - Radiated Emissions Quasi-peak Measurements, Low Channel
Frequency Level
Limit
Margin
MHz
dBµV/m dBµV/m dB
113.400000
-7.19
33.0
40.2
613.960000
10.78
35.5
24.8
Height
cm.
101.0
306.0
Angle
deg.
354
157
Pol
Axis
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 28 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Table 15 - Radiated Emissions Peak Measurements, Low Channel, GMSK
Axis
Frequency
Level
Limit
Margin Height Angle
Pol
MHz
dBµV/m dBµV/m dB
cm.
deg.
2480.000000
84.98
93.98
9.00
105.0
107
All peak measurements were at least 10 dB below the average limit
The EUT was maximized in all 3 orthogonal axis. The worst-case is shown in the Table above.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 29 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
4.3
PEAK OUTPUT POWER
Test Method: N/A
EIRP was calculated from field strength measurements using ANSI C63.10-2013, Annex G,
Equation G.1. The field strength was measured at a 3m distance and maximized. Test from ANSI
C63.10-2013, Section 11.9.1.1 was used as a reference.
For Informational Purposes only
Test procedures:
All measurements were taken at a distance of 3m from the EUT.
The EUT was maximized in all 3 orthogonal positions in a similar manner as described in Section
4.2. The power was measured using a 10 MHz RBW.
Deviations from test standard:
No deviation.
Test setup:
See Section 4.2.
EUT operating conditions:
The EUT was powered by 5 VDC unless specified and set to transmit continuously on the lowest
and highest frequency channel.
Test results:
Peak Output Power
PEAK
PEAK
OUTPUT
OUTPUT
POWER
POWER
(dBm)
(mW)
CHANNEL
CHANNEL
FREQUENCY
(MHz)
2402
-3.31
0.467
Conducted
PASS
GMSK
2441
-2.81
0.524
Conducted
PASS
GMSK
2480
-3.20
0.479
Conducted
PASS
GMSK
2402
-3.05
0.495
Conducted
PASS
GFSK
2441
-2.81
0.524
Conducted
PASS
GFSK
2480
-3.07
0.493
Conducted
PASS
GFSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 30 of 54
Method
RESULT
Transmsitter
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
3 MHz
Ref Lvl
-3.31 dBm
VBW
10 MHz
10 dBm
2.40152405 GHz
SWT
5 ms
RF Att
Unit
20 dB
dBm
10
1 [T1]
-3.31 dBm
2.40152405 GHz
-10
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.402 GHz
Date:
2.5 MHz/
17.DEC.2018
14:41:58
Figure 10 – Output Power, Low Channel, GMSK
Output power -3.31 dBm
Cable loss was less than 0.1 dB and not included
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 31 of 54
Span 25 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
1 MHz
Ref Lvl
-2.81 dBm
VBW
3 MHz
10 dBm
2.43988978 GHz
SWT
5 ms
RF Att
Unit
30 dB
dBm
10
1 [T1]
-2.81 dBm
2.43988978 GHz
-10
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.44 GHz
Date:
1 MHz/
17.DEC.2018
13:07:01
Figure 11 – Output Power, Mid Channel, GMSK
Output power = -2.81 dBm
Cable loss was less than 0.1 dB and not included
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 32 of 54
Span 10 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
3 MHz
Ref Lvl
-3.20 dBm
VBW
10 MHz
10 dBm
2.47977956 GHz
SWT
5 ms
RF Att
Unit
20 dB
dBm
10
1 [T1]
-3.20 dBm
2.47977956 GHz
-10
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.48 GHz
Date:
2 MHz/
17.DEC.2018
14:00:06
Figure 12 – Output Power, High Channel, GMSK
Output power = -3.20 dBm
Cable loss was less than 0.1 dB and not included
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 33 of 54
Span 20 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
1 MHz
Ref Lvl
-3.05 dBm
VBW
3 MHz
10 dBm
2.40207014 GHz
SWT
5 ms
RF Att
Unit
30 dB
dBm
10
1 [T1]
-3.05 dBm
2.40207014 GHz
-10
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.402 GHz
Date:
1 MHz/
17.DEC.2018
13:00:47
Figure 13 - Output Power, Low Channel, GFSK
Output power = -3.05 dBm
Cable loss was less than 0.1 dB and not included
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 34 of 54
Span 10 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
1 MHz
Ref Lvl
-2.81 dBm
VBW
3 MHz
10 dBm
2.43988978 GHz
SWT
5 ms
RF Att
Unit
30 dB
dBm
10
1 [T1]
-2.81 dBm
2.43988978 GHz
-10
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.44 GHz
Date:
1 MHz/
17.DEC.2018
13:07:01
Figure 14 - Output Power, Mid Channel, GFSK
Output power = -2.81 dBm
Cable loss was less than 0.1 dB and not included
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 35 of 54
Span 10 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
1 MHz
Ref Lvl
-3.07 dBm
VBW
3 MHz
10 dBm
2.47984970 GHz
SWT
5 ms
RF Att
Unit
30 dB
dBm
10
1 [T1]
-3.07 dBm
2.47984970 GHz
-10
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.48 GHz
Date:
1 MHz/
17.DEC.2018
13:12:37
Figure 15 - Output Power, High Channel, GFSK
Output power = -3.07 dBm
Cable loss was less than 0.1 dB and not included
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 36 of 54
Span 10 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
4.4
BANDWIDTH
Test Method: ANSI C63.10-2013, Section(s) 6.9.2
Limits of bandwidth measurements:
For Informational Purposes only
Test procedures:
Bandwidth measurement was taken at a distance of 3m from the EUT. The bandwidth of the
fundamental frequency was measured by spectrum analyzer with 3 kHz RBW and 10 kHz VBW.
The Occupied Bandwidth is defined as the bandwidth of which is higher than peak power minus
20dB.
Test setup:
All the measurements were done at 3m test distance while an operator was trying to activate the
hopping sequence manually. See Section 4.3 for more details.
Deviations from test standard:
No deviation.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 37 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Test setup:
Figure 16 - Bandwidth Measurements Test Setup
EUT operating conditions:
The EUT was powered by 5 VDC unless specified and set to transmit continuously on the lowest
and highest frequency channel.
Test results:
Occupied Bandwidth
CHANNEL
FREQUENCY
OBW (MHz)
(MHz)
CHANNEL
Mode
Low
GMSK
2402
1.09
PASS
Mid
GMSK
2441
1.08
PASS
High
GMSK
2480
1.09
PASS
Low
GFSK
2402
0.992
PASS
Mid
GFSK
2441
0.992
PASS
High
GFSK
2480
0.998
PASS
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 38 of 54
RESULT
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
100 kHz
300 kHz
Ref Lvl
-3.21 dBm
VBW
10 dBm
2.40203908 GHz
SWT
5 ms
RF Att
Unit
20 dB
dBm
10
1 [T1]
-3.21 dBm
2.40203908 GHz
OPB
T1 [T1]
1.08817635 MHz
-17.34 dBm
2.40149198 GHz
-10
T2 [T1]
T2
T1
-16.99 dBm
2.40258016 GHz
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.402 GHz
Date:
17.DEC.2018
300 kHz/
14:31:50
Figure 17 – Occupied Bandwidth, Low Channel, GMSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 39 of 54
Span 3 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
RBW
100 kHz
Ref Lvl
Marker 1 [T1]
-2.90 dBm
VBW
300 kHz
10 dBm
2.44003908 GHz
SWT
5 ms
RF Att
Unit
20 dB
dBm
10
1 [T1]
-2.90 dBm
2.44003908 GHz
OPB
T1 [T1]
1.08216433 MHz
-16.87 dBm
2.43949800 GHz
-10
T2 [T1]
T2
T1
-17.09 dBm
2.44058016 GHz
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.44 GHz
Date:
300 kHz/
17.DEC.2018
14:03:36
Figure 18 - Occupied Bandwidth, Mid Channel, GMSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 40 of 54
Span 3 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
100 kHz
300 kHz
Ref Lvl
-3.19 dBm
VBW
10 dBm
2.48004058 GHz
SWT
5 ms
RF Att
Unit
20 dB
dBm
10
1 [T1]
-3.19 dBm
2.48004058 GHz
OPB
T1 [T1]
1.09118236 MHz
-16.85 dBm
2.47949950 GHz
-10
T1
T2
T2 [T1]
-17.58 dBm
2.48059068 GHz
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.48 GHz
Date:
450 kHz/
17.DEC.2018
13:57:57
Figure 19 - Occupied Bandwidth, High Channel, GMSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 41 of 54
Span 4.5 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
100 kHz
-3.51 dBm
VBW
300 kHz
2.40205110 GHz
SWT
Ref Lvl
4 dBm
RF Att
5 ms
Unit
30 dB
dBm
1 [T1]
-3.51 dBm
2.40205110 GHz
OPB
-10
991.98396794 kHz
T1 [T1]
T2
T2 [T1]
T1
-20
-19.19 dBm
2.40154008 GHz
-18.91 dBm
2.40253206 GHz
IN1
-30 1MAX
1MA
-40
-50
-60
-70
-80
-90
-96
Center 2.402 GHz
Date:
17.DEC.2018
300 kHz/
15:31:23
Figure 20 – Occupied Bandwidth, Low Channel, GFSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 42 of 54
Span 3 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
100 kHz
-3.01 dBm
VBW
300 kHz
2.44003908 GHz
SWT
Ref Lvl
4 dBm
RF Att
5 ms
Unit
30 dB
dBm
1 [T1]
-3.01 dBm
2.44003908 GHz
OPB
-10
991.98396794 kHz
T1 [T1]
T2
T2 [T1]
T1
-20
-19.04 dBm
2.43954008 GHz
-18.92 dBm
2.44053206 GHz
IN1
-30 1MAX
1MA
-40
-50
-60
-70
-80
-90
-96
Center 2.44 GHz
Date:
300 kHz/
17.DEC.2018
15:29:29
Figure 21 - Occupied Bandwidth, Mid Channel, GFSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 43 of 54
Span 3 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
100 kHz
300 kHz
Ref Lvl
-3.44 dBm
VBW
10 dBm
2.48005010 GHz
SWT
RF Att
5 ms
Unit
30 dB
dBm
10
1 [T1]
-3.44 dBm
2.48005010 GHz
OPB
997.99599198 kHz
T1 [T1]
-19.39 dBm
2.47954008 GHz
-10
T2 [T1]
T2
T1
-18.93 dBm
2.48053808 GHz
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Center 2.48 GHz
Date:
300 kHz/
17.DEC.2018
13:37:09
Figure 22 - Occupied Bandwidth, High Channel, GFSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 44 of 54
Span 3 MHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
4.5
BAND EDGES
Test Method:
ANSI C63.10-2013, Section(s) 6.10.6
Limits of bandedge measurements:
For emissions outside of the allowed band of operation, the emission level needs to be 50dB under
the maximum fundamental field strength. However, if the emissions fall within one of the restricted
bands from 15.205 the field strength levels need to be under that of the limits in 15.209.
Test procedures:
The EUT was tested in the same method as described in section 4.4 - Bandwidth. The EUT was
oriented as to produce the maximum emission levels. The resolution bandwidth was set to 30kHz
and the EMI receiver was used to scan from the bandedge to the fundamental frequency with a
quasi-peak detector. The highest emissions level beyond the bandedge was measured and
recorded. All band edge measurements were evaluated to the general limits in Part 15.209.
Deviations from test standard:
No deviation.
Test setup:
All the measurements were done at 3m test distance while an operator was trying to activate the
hopping sequence manually.
EUT operating conditions:
The EUT was powered by 5 VDC unless specified and set to transmit continuously on the lowest
frequency channel, and the highest frequency channel.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 45 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Test results:
CHANNEL
Mode
Band edge
/Measurement
Frequency
(MHz)
Relative
Highest out
of band
level dBm
Relative
Fundamental
dBm
Delta
(dB)
Min
Delta
(dB)
Result
Low, Continuous
GMSK
2400
-49.68
-3.97
45.71
30.13
PASS
Low, Continuous
GFSK
2400
-55.01
-2.94
52.07
30.98
PASS
High, Continuous
GMSK
2483.5
-53.22
-3.24
49.98
35.98
PASS
High, Continuous
GFSK
2483.5
-54.85
-3.16
51.69
37.85
PASS
*Minimum delta = [highest fundamental peak field strength from Section 4.2 ] – [ Part 15.209 radiated emissions
limit. ]
From Section 4.2
Fundamental peak field strength at Low Channel GMSK = 92.30 dBµV/m
Fundamental peak field strength at High Channel GMSK = 92.19 dBµV/m
Fundamental peak field strength at Low Channel GFSK = 92.04 dBµV/m
Fundamental peak field strength at High Channel GFSK = 93.82 dBµV/m
Low Channel minimum delta GMSK = 92.30 – 54.0 dBµV/m = 30.13 dBc
High Channel minimum delta GMSK = 92.19 – 54.0 dBµV/m = 30.98 dBc
Low Channel minimum delta GFSK = 92.04 – 54.0 dBµV/m = 35.98 dBc
High Channel minimum delta GFSK = 93.82 – 54.0 dBµV/m = 37.85 dBc
Measurements do not include correction factors and are intended to be relative measurements only.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 46 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
100 kHz
Ref Lvl
-3.97 dBm
VBW
300 kHz
10 dBm
2.40183267 GHz
SWT
6.5 ms
RF Att
Unit
20 dB
dBm
10
1 [T1]
-3.97 dBm
2.40183267 GHz
2 [T1]
-49.68 dBm
2.40000000 GHz
1 [T1]
-10
-45.71 dB
-1.81663327 MHz
2 [T1]
-20
-58.47 dB
-11.83266533 MHz IN1
1MAX
3 [T1]
-62.44 dBm 1MA
2.39000000 GHz
-30
-40
-50
-602
-70
-80
-90
Start 2.39 GHz
Date:
17.DEC.2018
2.45 MHz/
14:48:14
Figure 23 - Band Edge, Low Channel, GMSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 47 of 54
Stop 2.4145 GHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
100 kHz
300 kHz
Ref Lvl
-2.94 dBm
VBW
10 dBm
2.48003707 GHz
SWT
5 ms
RF Att
Unit
20 dB
dBm
10
1 [T1]
-2.94 dBm
2.48003707 GHz
2 [T1]
-55.01 dBm
2.48350000 GHz
1 [T1]
-10
-52.07 dB
3.46292585 MHz
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Start 2.479 GHz
Date:
17.DEC.2018
450 kHz/
13:50:01
Figure 24 – Restricted Band Edge, High Channel, GMSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 48 of 54
Stop 2.4835 GHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
Marker 1 [T1]
RBW
100 kHz
300 kHz
Ref Lvl
-3.24 dBm
VBW
10 dBm
2.40206613 GHz
SWT
RF Att
5 ms
Unit
20 dB
dBm
10
1 [T1]
-3.24 dBm
2.40206613 GHz
2 [T1]
1 [T1]
-53.22 dBm
2.40000000 GHz
-49.98 dB
-2.05611222 MHz
-10
2 [T1]
-56.56 dB
-12.06613226 MHz IN1
1MAX
3 [T1]
-20
-59.80 dBm 1MA
2.39000000 GHz
-30
-40
-50
-60
-70
Start 2.39 GHz
Date:
17.DEC.2018
1.35 MHz/
15:34:08
Figure 25 –Band Edge, Low Channel, GFSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 49 of 54
Stop 2.4035 GHz
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
RBW
100 kHz
Ref Lvl
Marker 1 [T1]
-3.16 dBm
VBW
300 kHz
10 dBm
2.48003307 GHz
SWT
5 ms
RF Att
Unit
20 dB
dBm
10
1 [T1]
-3.16 dBm
2.48003307 GHz
2 [T1]
-54.85 dBm
2.48350000 GHz
1 [T1]
-10
-51.69 dB
3.46693387 MHz
-20
IN1
1MAX
1MA
-30
-40
-50
-60
-70
-80
-90
Start 2.4785 GHz
Date:
17.DEC.2018
500 kHz/
Stop 2.4835 GHz
13:40:49
Figure 26 – Band Edge Measurement, High Channel, GFSK
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 50 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
APPENDIX A: SAMPLE CALCULATION
Field Strength Calculation
The field strength is calculated by adding the Antenna Factor and Cable Factor, and subtracting the Amplifier Gain
(if any) from the measured reading. The basic equation with a sample calculation is as follows:
FS = RA + AF – (-CF + AG) + AV
where FS = Field Strength
RA = Receiver Amplitude
AF = Antenna Factor
CF = Cable Attenuation Factor
AG = Amplifier Gain
AV = Averaging Factor (if applicable)
Assume a receiver reading of 55 dBV is obtained. The Antenna Factor of 12 and a Cable Factor of 1.1 is added.
The Amplifier Gain of 20 dB is subtracted, giving a field strength of 48.1 dBV/m.
FS = 55 + 12 – (-1.1 + 20) + 0 = 48.1 dBV/m
The 48.1 dBV/m value can be mathematically converted to its corresponding level in V/m.
Level in V/m = Common Antilogarithm [(48.1 dBV/m)/20]= 254.1 V/m
AV is calculated by the taking the 20*log(T on/100) where Ton is the maximum transmission time in any 100ms
window.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 51 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
EIRP Calculations
In cases where direct antenna port measurement is not possible or would be inaccurate, output power is measured
in EIRP. The maximum field strength is measured at a specified distance and the EIRP is calculated using the
following equation;
EIRP (Watts) = [Field Strength (V/m) x antenna distance (m)]2 / 30
Power (watts) = 10^[Power (dBm)/10] / 1000
Voltage (dBµV) = Power (dBm) + 107 (for 50Ω measurement systems)
Field Strength (V/m) = 10^[Field Strength (dBµV/m) / 20] / 10^6
Gain = 1 (numeric gain for isotropic radiator)
Conversion from 3m field strength to EIRP (d=3):
EIRP = [FS(V/m) x d^2]/30 = FS [0.3]
for d = 3
EIRP(dBm) = FS(dBµV/m) – 10(log 10^9)+ 10log[0.3] = FS(dBµV/m) - 95.23
10log( 10^9) is the conversion from micro to milli
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 52 of 54
Report Number: R20180514-24-01B
Rev
Prepared for: Garmin
APPENDIX B – MEASUREMENT UNCERT AINTY
Where relevant, the following measurement uncertainty levels have been for tests performed in this test report:
Test
Frequency Range
Uncertainty Value (dB)
Radiated Emissions, 3m
30MHz - 1GHz
3.82
Radiated Emissions, 3m
1GHz - 18GHz
4.44
30MHz – 18GHz
±3.30 dB
Emissions limits, conducted
Expanded uncertainty values are calculated to a confidence level of 95%.
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 53 of 54
Report Number: R20180514-24-01B
Prepared for: Garmin
REPORT END
The Nebraska Center for Excellence in Electronics
4740 Discovery Drive
Lincoln, NE 68521
Page 54 of 54
Rev
Download: 03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Mirror Download [FCC.gov]03711 Wireless Heart Rate Monitor Test Report R20181004-20-03B Garmin International Inc
Document ID4127182
Application IDbV/mgAzbkJ3ggTupPbvDpg==
Document DescriptionR20181004-20-03B FCC ISED
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
Filesize114.33kB (1429110 bits)
Date Submitted2019-01-02 00:00:00
Date Available2019-01-02 00:00:00
Creation Date2018-12-28 17:54:04
Producing SoftwareMicrosoft® Word 2016
Document Lastmod2018-12-28 17:54:21
Document TitleR20181004-20-03B
Document CreatorMicrosoft® Word 2016
Document Author: NJohnson

Source Exif Data [exif.tools]:
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.7
Linearized                      : No
Has XFA                         : No
Page Count                      : 54
Tagged PDF                      : Yes
Language                        : en-US
XMP Toolkit                     : 3.1-701
Producer                        : Microsoft® Word 2016
Title                           : R20181004-20-03B
Creator                         : NJohnson
Creator Tool                    : Microsoft® Word 2016
Create Date                     : 2018:12:28 17:54:04-06:00
Modify Date                     : 2018:12:28 17:54:21-06:00
Document ID                     : uuid:94D480B4-B409-48AF-A347-7E9D7D06605E
Instance ID                     : uuid:94D480B4-B409-48AF-A347-7E9D7D06605E
Author                          : NJohnson