8628 Models 821LMB-SENSOR and MYQ-G0302 Door Sensor Test Report Chamberlain Group Inc, The

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Page 1 of 8628 Models 821LMB-SENSOR and MYQ-G0302 Door Sensor Test Report  Chamberlain Group Inc, The

Engineering Test Report No. 1701673-01 Rev. A
Measurement of RF Emissions from an
821LMB-SENSOR and MYQ-G0302
Door Sensor Transmitter
For
Chamberlain Group, Inc.
1818 Swift Drive
Oak Brook, IL 60523
P.O. Number
Date Tested
Test Personnel
Test Specification
4900044708
April 27, 2017 and April 28, 2017
Mark E. Longinotti
FCC "Code of Federal Regulations” Title 47
Part15, Subpart C
Innovation, Science, and Economic Development
Canada RSS-Gen
Innovation, Science, and Economic Development
Canada RSS-210
Test Report By:
Mark E. Longinotti
EMC Engineer
Requested By:
Adil S Ahmed
Chamberlain Group, Inc.
Approved By:
Raymond J. Klouda
Registered Professional
Engineer of Illinois - 44894
Engineering Test Report No. 1701673-01 Rev. A
TABLE OF CONTENTS
PARAGRAPH
DESCRIPTION OF CONTENTS
PAGE NO.
1.
Introduction ................................................................................................................................................... 5
1.1.
Scope of Tests ..................................................................................................................................... 5
1.2.
Purpose ............................................................................................................................................... 5
1.3.
Deviations, Additions and Exclusions .................................................................................................. 5
1.4.
EMC Laboratory Identification ............................................................................................................. 5
1.5.
Laboratory Conditions.......................................................................................................................... 5
2.
Applicable Documents.................................................................................................................................. 5
3.
EUT Setup and Operation ............................................................................................................................ 6
3.1.
General Description ............................................................................................................................. 6
3.1.1.
Power Input ................................................................................................................................. 6
3.1.2.
Peripheral Equipment ................................................................................................................. 6
3.1.3.
Signal Input/Output Leads .......................................................................................................... 6
3.1.4.
Grounding ................................................................................................................................... 6
4.
5.
3.2.
Software ............................................................................................................................................... 6
3.3.
Operational Mode ................................................................................................................................ 6
3.4.
EUT Modifications................................................................................................................................ 6
Test Facility and Test Instrumentation ......................................................................................................... 6
4.1.
Shielded Enclosure .............................................................................................................................. 6
4.2.
Test Instrumentation ............................................................................................................................ 7
4.3.
Calibration Traceability ........................................................................................................................ 7
4.4.
Measurement Uncertainty ................................................................................................................... 7
Test Procedures ........................................................................................................................................... 7
5.1.
Automatic Operation Measurements ................................................................................................... 7
5.1.1.
Requirements .............................................................................................................................. 7
5.1.2.
Procedures .................................................................................................................................. 7
5.1.3.
Results ........................................................................................................................................ 7
5.2.
Periodic Operation Measurements ...................................................................................................... 7
5.2.1.
Requirements .............................................................................................................................. 7
5.2.2.
Procedures .................................................................................................................................. 8
5.2.3.
Results ........................................................................................................................................ 8
5.3.
Duty Cycle Factor Measurements ....................................................................................................... 8
5.3.1.
Procedures .................................................................................................................................. 8
5.3.2.
Results ........................................................................................................................................ 8
5.4.
Radiated Measurements ..................................................................................................................... 8
5.4.1.
Requirements .............................................................................................................................. 8
5.4.2.
Procedures .................................................................................................................................. 9
5.4.3.
Results ...................................................................................................................................... 10
5.5.
Occupied Bandwidth Measurements ................................................................................................. 10
5.5.1.
Requirement.............................................................................................................................. 10
5.5.2.
Procedures ................................................................................................................................ 10
5.5.3.
Results ...................................................................................................................................... 10
THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE
WRITTEN APPROVAL OF ELITE ELECTRONIC ENGINEERING INCORPORATED.
Page 2 of 57
Engineering Test Report No. 1701673-01 Rev. A
TABLE OF CONTENTS
PARAGRAPH
DESCRIPTION OF CONTENTS
PAGE NO.
6.
Other Test Conditions ................................................................................................................................ 10
6.1.
Test Personnel and Witnesses .......................................................................................................... 10
6.2.
Disposition of the EUT ....................................................................................................................... 11
7.
Conclusions ................................................................................................................................................ 11
8.
Certification................................................................................................................................................. 11
9.
Equipment List ............................................................................................................................................ 12
THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE
WRITTEN APPROVAL OF ELITE ELECTRONIC ENGINEERING INCORPORATED.
Page 3 of 57
Engineering Test Report No. 1701673-01 Rev. A
REVISION HISTORY
Revision
Date
Description
—
8 May 2017
Initial release
12 May 2017
Added Rev A to the report number in the header of each page.
Per Chamberlain Group, Inc. personnel, model number of the EUT
was changed from: OOK, To: 821LMB-SENSOR and MYQ-G0302
throughout the test report.
Page 4 of 57
Engineering Test Report No. 1701673-01 Rev. A
Measurement of RF Emissions from an 821LMB-SENSOR and MYQ-G0302 Door
Sensor Transmitter
1. INTRODUCTION
1.1. Scope of Tests
This report presents the results of the RF emissions measurements performed on a Door Sensor, Model
Numbers: 821LMB-SENSOR and MYQ-G0302 (hereinafter referred to as the Equipment Under Test (EUT)).
The EUT was designed to transmit at approximately 311.88MHz, 312.5MHz, and 313.12MHz using an internal
antenna. The EUT was manufactured and submitted for testing by Chamberlain Group, Inc. located in Oak
Brook, IL.
1.2. Purpose
The test series was performed to determine if the EUT meets the radiated RF emission requirements of the
FCC "Code of Federal Regulations" Title 47, Part 15, Subpart C, Section 15.231 for Intentional Radiators.
The test series was also performed to determine if the EUT meets the radiated RF emission requirements of
the Innovation, Science, and Economic Development Canada, RSS-210, Annex A for transmitters.
Testing was performed in accordance with ANSI C63.4-2014.
1.3. Deviations, Additions and Exclusions
There were no deviations, additions to, or exclusions from the test specification during this test series.
1.4. EMC Laboratory Identification
This series of tests was performed by Elite Electronic Engineering Incorporated of Downers Grove, Illinois. The
laboratory is accredited by The American Association for Laboratory Accreditation (A2LA). A2LA Certificate
Number: 1786.01.
1.5. Laboratory Conditions
The temperature at the time of the test was 22oC and the relative humidity was 23%.
2. APPLICABLE DOCUMENTS
The following documents of the exact issue designated form part of this document to the extent specified
herein:
Federal Communications Commission "Code of Federal Regulations", Title 47, Part 15, Subpart
C, dated 1 October 2016
ANSI C63.4-2014, "American National Standard for Methods of Measurement of Radio-Noise
Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40
GHz"
Innovation, Science, and Economic Development Canada Radio Standards Specification, RSSGen, “General Requirements for Compliance of Radio Apparatus”, Issue 4, November 2014
Innovation, Science, and Economic Development Canada Radio Standards Specification, RSS210, “License-Exempt Radio Apparatus: Category I Equipment”, Issue 9, August 2016
Page 5 of 57
Engineering Test Report No. 1701673-01 Rev. A
3. EUT SETUP AND OPERATION
3.1. General Description
The EUT is a Chamberlain Group, Inc. Door Sensor, Model Numbers: 821LMB-SENSOR and MYQ-G0302. A
block diagram of the EUT setup is shown as Figure 1. A photograph of the EUT is shown as Figure 2.
3.1.1.Power Input
The EUT received 3VDC from an internal CR2450 battery.
3.1.2.Peripheral Equipment
There was no peripheral equipment submitted with the EUT.
3.1.3.Signal Input/Output Leads
There were no interconnecting cables submitted with the EUT.
3.1.4.Grounding
The EUT was ungrounded during the tests.
3.2. Software
For all tests, the EUT had RF Test Code loaded onto the device to provide correct load characteristics.
3.3. Operational Mode
The EUT can act as both an automatically operated transmitter and a periodic transmitter. When the EUT
detects garage door movement, it acts as an automatically operated transmitter. If the EUT does not detect
motion, it acts as a periodic transmitter.
Three separate samples were submitted for testing. Sample 1 was programmed to transmit continuously at the
power levels for automatically operated transmitters. Sample 2 was programmed to transmit continuously at
the power levels for periodic transmitters. Sample 3 operated in normal operation mode to determine
deactivation time for automatically operated transmitters and periodic rate for periodic transmitters.
For all tests, the EUT was placed on a non-conductive stand. The EUT was energized. The EUT was
programmed to continuously transmit separately in each of the following modes:
- 311.88MHz, mode 73
- 312.5MHz, mode 73
- 313.12MHz, mode 73
- 311.88MHz, mode 41
- 312.5MHz, mode 41
- 313.12MHz, mode 41
3.4. EUT Modifications
No modifications were required for compliance to FCC Title 47, Part 15, Subpart C, Section 15.231 or
Innovation, Science, and Economic Development Canada Radio Standards Specification, RSS-210, Annex A.
4. TEST FACILITY AND TEST INSTRUMENTATION
4.1. Shielded Enclosure
All tests were performed in a 32ft. x 20ft. x 18ft. hybrid ferrite-tile/anechoic absorber lined test chamber. With
the exception of the floor, the reflective surfaces of the shielded chamber are lined with ferrite tiles on the walls
and ceiling. Anechoic absorber material is installed over the ferrite tile. The floor of the chamber is used as
the ground plane. The chamber complies with ANSI C63.4-2014 for site attenuation.
Page 6 of 57
Engineering Test Report No. 1701673-01 Rev. A
4.2. Test Instrumentation
The test instrumentation and auxiliary equipment used during the tests are listed in Table 9-1.
4.3. Calibration Traceability
Test equipment is maintained and calibrated on a regular basis with a calibration interval not greater than two
years. All calibrations are traceable to the National Institute of Standards and Technology (NIST).
4.4. Measurement Uncertainty
All measurements are an estimate of their true value. The measurement uncertainty characterizes, with a
specified confidence level, the spread of values which may be possible for a given measurement system.
The measurement uncertainty for these tests is presented below:
Conducted Emissions Measurements
Combined Standard Uncertainty
1.06
-1.06
Expanded Uncertainty (95% confidence)
2.12
-2.12
Combined Standard Uncertainty
2.09
-2.09
Expanded Uncertainty (95% confidence)
4.19
-4.19
Radiated Emissions Measurements
5. TEST PROCEDURES
5.1. Automatic Operation Measurements
5.1.1.Requirements
A manually operated transmitter shall employ a switch that will automatically deactivate the transmitter within
not more than 5 seconds of being released. Also, a transmitter activated automatically shall cease
transmission within 5 seconds after activation.
5.1.2.Procedures
The spectrum analyzer was set up to display the time domain trace. The EUT was set to transmit normally.
The spectrum analyzer was used to record the amount of time that the EUT remained active following
activation.
5.1.3.Results
The plot of the deactivation time is shown on data page 17. The data shows that the EUT ceases operation
within the allotted time.
5.2. Periodic Operation Measurements
5.2.1.Requirements
Periodic transmitters shall be provided with a means for automatically limiting operation so that the duration of
each transmission shall not be greater than one second and the silent period between transmissions shall be
at least 30 times the duration of the transmission but in no case less than 10 seconds.
Page 7 of 57
Engineering Test Report No. 1701673-01 Rev. A
5.2.2.Procedures
The spectrum analyzer was setup to display the time domain trace. The EUT was set to transmit normally. The
spectrum analyzer was used to record the amount of time that the EUT transmits and the time between
transmissions.
5.2.3.Results
The plot of the periodic operation time is shown on data page 18. The data shows that the EUT meets the
periodic operation requirements.
5.3. Duty Cycle Factor Measurements
5.3.1.Procedures
The duty cycle factor is used to convert peak detected readings to average readings. This factor is computed
from the time domain trace of the pulse modulation signal.
The duty cycle factor was calculated from information supplied by the manufacturer. Since this EUT utilizes a
rolling code modulation, the duty is calculated based on the worst case. The following procedure was used to
measure a representative sample:
a) With the transmitter set up to transmit for maximum pulse density, the time domain trace is displayed
on the spectrum analyzer.
b) The pulse width is measured and a plot of this measurement is recorded.
c) Next the number of pulses in the word period is measured and a plot is recorded.
d) Finally the length of the word period is measured and a third plot is recorded. If the word period
exceeds 100msec, the word period is limited to 100msec.
e) The pulse width and number of pulses for the word period are used to compute the on-time. The duty
cycle is then computed as the (on-time/ word period).
f)
The duty cycle factor is computed from the duty cycle.
5.3.2.Results
The plot of the duty cycles are shown on data pages 19 through 21. The manufacturer provided following
information to calculate the duty cycle for the Rolling Code:
The rolling code consists of the following: 50 short pulses (0.246msec) and 18 long pulses (0.494msec).
A worst case situation is used when computing the rolling code modulation factor.
Worst Case = 21.2msec on-time over 100msec word period
Duty Cycle Factor = 20log (21.2/100) = -13.5dB.
Since the plots were made for the rolling code, the duty cycle factor shown on the plots may not show the
worst case but was found to be no greater than the worst case duty cycle factor.
5.4. Radiated Measurements
5.4.1.Requirements
The EUT, when acting as an automatically operated transmitter, must comply with the requirements of FCC
"Code of Federal Regulations Title 47", Part 15, Subpart C, Section 15.231(b) and Innovation, Science, and
Economic Development Canada Radio Standards Specification, RSS-210, Table A1.
Fundamental Frequency
MHz
Field Intensity
uV/m @ 3 meters
Field Strength Harmonics and
Spurious @ 3 meters
260 to 470
3,750 to 12,500*
375 to 1,250*
Page 8 of 57
Engineering Test Report No. 1701673-01 Rev. A
* - Linear Interpolation
In addition, emissions appearing in the Restricted Bands of Operation listed in paragraph 15.231(b) shall not
exceed the general requirements shown in paragraph 15.231.
The EUT, when acting as a periodic transmitter, must comply with the requirements of FCC "Code of Federal
Regulations Title 47", Part 15, Subpart C, Section 15.231(e) and Innovation, Science, and Economic
Development Canada Radio Standards Specification, RSS-210, Table A2.
Fundamental Frequency
MHz
Field Intensity
uV/m @ 3 meters
Field Strength Harmonics and
Spurious @ 3 meters
260 to 470
1,500 to 5,000*
150 to 500*
* - Linear Interpolation
In addition, emissions appearing in the Restricted Bands of Operation listed in paragraph 15.231(b) shall not
exceed the general requirements shown in paragraph 15.231.
5.4.2.Procedures
All tests were performed in a 32ft. x 20ft. x 18ft. hybrid ferrite-tile/anechoic absorber lined test chamber. The
walls and ceiling of the shielded chamber are lined with ferrite tiles. Anechoic absorber material is installed
over the ferrite tile. The floor of the chamber is used as the ground plane. The chamber complies with ANSI
C63.4-2014 for site attenuation.
The shielded enclosure prevents emissions from other sources, such as radio and TV stations from interfering
with the measurements. All powerlines and signal lines entering the enclosure pass through filters on the
enclosure wall. The powerline filters prevent extraneous signals from entering the enclosure on these leads.
Radiated measurements were performed in a 32ft. x 20ft. x 14ft. high shielded enclosure. The shielded
enclosure prevents emissions from other sources, such as radio and TV stations from interfering with the
measurements. All powerlines and signal lines entering the enclosure pass through filters on the enclosure
wall. The powerline filters prevent extraneous signals from entering the enclosure on these leads.
Preliminary radiated emissions tests were performed to determine the emission characteristics of the EUT. For
the preliminary test, a broadband measuring antenna was positioned at a 3 meter distance from the EUT. The
entire frequency range from 30MHz to 3.5GHz was investigated using a peak detector function.
The final radiated emission tests were then manually performed over the frequency range of 30MHz to
3.5GHz. Between 30MHz and 1000MHz, a bi-log antenna was used as the pick-up device. The bi-log antenna
was positioned at a 3 meter distance from the EUT. The EUT was placed on an 80cm high non-conductive
stand. A resolution bandwidth of 100 kHz was used on the spectrum analyzer. A broadband double ridged
waveguide antenna was used as the pick-up device for all frequencies above 1GHz. The waveguide antenna
was positioned at a 3 meter distance from the EUT. The EUT was placed on a 1.5 meter high non-conductive
stand. A peak detector with a resolution bandwidth of 1 MHz was used on the spectrum analyzer. All
significant broadband and narrowband signals were measured and recorded. The peak detected levels were
converted to average levels using a duty cycle factor which was computed from the pulse train.
To ensure that maximum or worst case, emission levels were measured, the following steps were taken:
1) The EUT was set to transmit at 311.88MHz, mode 73.
2) The EUT was rotated so that all of its sides were exposed to the receiving antenna.
3) Since the measuring antenna is linearly polarized, both horizontal and vertical field components were
measured.
4) The measuring antenna was raised and lowered from 1 to 4 meters for each antenna polarization to
Page 9 of 57
Engineering Test Report No. 1701673-01 Rev. A
5)
6)
7)
8)
9)
maximize the readings.
Steps (1) through (4) were repeated with the EUT set to transmit at 312.5MHz, mode 73.
Steps (1) through (4) were repeated with the EUT set to transmit at 313.12MHz, mode 73.
Steps (1) through (4) were repeated with the EUT set to transmit at 311.88MHz, mode 41.
Steps (1) through (4) were repeated with the EUT set to transmit at 312.5MHz, mode 41.
Steps (1) through (4) were repeated with the EUT set to transmit at 313.12MHz, mode 41.
5.4.3.Results
FCC 15.231(b) and RSS-210, Annex A, Table A1:
The preliminary plots, with the EUT transmitting at 311.88MHz, 312.5MHz, and 313.12MHz, are presented on
data pages 22 through 33. The plots are presented for a reference only, and are not used to determine
compliance.
The final radiated levels, with the EUT transmitting at 311.88MHz, 312.5MHz, and 313.12MHz, are presented
on data pages 34 through 36. As can be seen from the data, all emissions measured from the EUT were within
the specification limits. The emissions level closet to the limit (worst case) occurred at 311.88MHz. The
emissions level at this frequency was -0.8dB within the limit. Photographs of the test configuration which
yielded the highest (or worst case) radiated emission levels are shown as Figures 3 and 4.
FCC 15.231(e) and RSS-210, Annex A, Table A2:
The preliminary plots, with the EUT transmitting at 311.88MHz, 312.5MHz, and 313.12MHz, are presented on
data pages 37 through 48. The plots are presented for a reference only, and are not used to determine
compliance.
The final radiated levels, with the EUT transmitting at 311.88MHz, 312.5MHz, and 313.12MHz, are presented
on data pages 49 through 51. As can be seen from the data, all emissions measured from the EUT were within
the specification limits. The emissions level closet to the limit (worst case) occurred at 311.88MHz. The
emissions level at this frequency was -0.8dB within the limit. Photographs of the test configuration which
yielded the highest (or worst case) radiated emission levels are shown as Figures 3 and 4.
5.5. Occupied Bandwidth Measurements
5.5.1.Requirement
In accordance with paragraph 15.231(c), all emissions within 20dB of the peak amplitude level of the center
frequency are required to be within a band less than 0.25% of the center frequency wide.
5.5.2.Procedures
The EUT was placed on an 80cm high non-conductive stand. The unit was set to transmit continuously. With
an antenna positioned nearby, occupied bandwidth emissions were displayed on the spectrum analyzer. The
resolution bandwidth was set to 30kHz and span was set to 2MHz. The frequency spectrum near the
fundamental was plotted for all frequencies.
5.5.3.Results
The plot of the emissions near the fundamental frequency is presented on data pages 52 through 57. As can
be seen from this data page, the transmitter met the occupied bandwidth requirements. The 99% bandwidth
was measured to be 392.8kHz.
6. OTHER TEST CONDITIONS
6.1. Test Personnel and Witnesses
All tests were performed by qualified personnel from Elite Electronic Engineering Incorporated.
Page 10 of 57
Engineering Test Report No. 1701673-01 Rev. A
6.2. Disposition of the EUT
The EUT and all associated equipment were returned to Chamberlain Group, Inc. upon completion of the
tests.
7. CONCLUSIONS
The Chamberlain Group, Inc. Door Sensor, Model Numbers: 821LMB-SENSOR and MYQ-G0302 did fully
meet the radiated emission requirements of the FCC "Code of Federal Regulations" Title 47, Part 15, Subpart
C, Section 15.231 for both automatically operated intentional radiators and periodic intentional radiators, when
tested per ANSI C63.4-2014.
The Chamberlain Group, Inc. Door Sensor, Model Numbers: 821LMB-SENSOR and MYQ-G0302 did also fully
meet the technical requirements of the Innovation, Science, and Economic Development Canada Radio
Standards Specification, Radio Standards Specification RSS-210 for both automatically operated transmitters
and periodic transmitters, when tested per ANSI C63.4-2014.
8. CERTIFICATION
Elite Electronic Engineering Incorporated certifies that the information contained in this report was obtained
under conditions which meet or exceed those specified in the test specifications.
The data presented in this test report pertains to the EUT at the test date. Any electrical or mechanical
modification made to the EUT subsequent to the specified test date will serve to invalidate the data and void
this certification.
This report must not be used to claim product certification, approval, or endorsement by A2LA, NIST or any
agency of the Federal Government.
Page 11 of 57
Engineering Test Report No. 1701673-01 Rev. A
9. EQUIPMENT LIST
Table 9-1 Equipment List
Eq ID
CDX8
Equipment Description
COMPUTER
Manufacturer
Model No.
Serial No.
Frequency Range
Cal Date
Due Date
ELITE
WORKSTATION
TESEQ
6112D
28040
25-1000MHz
11/27/2016
11/27/2017
ETS-LINDGREN
3117
66655
1GHZ-18GHZ
4/4/2016
4/4/2018
N/A
NTA2
BILOG ANTENNA
NWQ1
DOUBLE RIDGED WAVEGUIDE
ANTENNA
PHA0
MAGNETIC FIELD PROBE
ELECTRO-METRICS
EM-6882
134
22-230MHZ
NOTE 1
RBA0
EMI TEST RECEIVER
ROHDE & SCHWARZ
ESIB26
100145
20HZ-26.5GHZ
03/10/2017
WKA1
SOFTWARE, UNIVERSAL RCV EMI
ELITE
UNIV_RCV_EMI
---
I/O
03/10/2018
I/O: Initial Only
N/A: Not Applicable
Note 1: For the purpose of this test, the equipment was calibrated over the specified frequency range, pulse
rate, or modulation prior to the test or monitored by a calibrated instrument.
Page 12 of 57
Engineering Test Report No. 1701673-01 Rev. A
Anechoic Ferrite Chamber
DUT
er
et eter
3 1m
or
QP Adaptor
Spectrum
Analyzer
Attenuator
Switch
Pre-Amp
Receive Antenna
Pre-Selector
Page 13 of 57
Engineering Test Report No. 1701673-01 Rev. A
Figure 2
Photograph of EUT
Page 14 of 57
Engineering Test Report No. 1701673-01 Rev. A
Figure 3
Test Setup for Radiated Emissions, 30MHz to 1GHz – Horizontal Polarization
Test Setup for Radiated Emissions, 30MHz to 1GHz – Vertical Polarization
Page 15 of 57
Engineering Test Report No. 1701673-01 Rev. A
Figure 4
Test Setup for Radiated Emissions, 1-3.5GHz – Horizontal Polarization
Test Setup for Radiated Emissions, 1-3.5GHz – Vertical Polarization
Page 16 of 57
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
102.62 dB V
Ref Lvl
122 dB V
10.420842 ms
RBW
100 kHz
VBW
100 kHz
SWT
5 s
RF Att
Unit
30 dB
dB V
122
1 [T2]
102.62 dB V
10.420842 ms
1 [T2]
110
0.00 dB
480.961924  s
SGL
TRG
100
IN1
90
2MAX
2MA
80
P0
70
60
50
40
30
22
Center 312.5 MHz
Date:
28.APR.2017
500 ms/
10:54:07
Deactivation Time
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 312.5MHz
4/28/2017 10:36:52 AM
Less than 5 seconds
Page 17 of 57
Engineering Test Report No. 1701673-01 Rev. A
Delta 1 [T2]
Ref Lvl
-0.05 dB
122 dB V
923.847695 s
RBW
100 kHz
VBW
100 kHz
SWT
1000 s
RF Att
30 dB
dB V
Unit
122
1 [T2]
93.95 dB V
0.000000 s
1 [T2]
110
-0.05 dB
923.847695 s
SGL
TRG
100
IN1
90
2MAX
2MA
80
P0
70
60
50
40
30
22
Center 312.5 MHz
Date:
28.APR.2017
100 s/
11:22:21
Periodic Transmission
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 312.5MHz
4/28/2017 11:05:06 AM
At least 10 seconds between transmissions
Page 18 of 57
Engineering Test Report No. 1701673-01 Rev. A
Delta 1 [T2]
Ref Lvl
122 dB V
RBW
100 kHz
1.65 dB
VBW
100 kHz
246.492986  s
SWT
RF Att
1 ms
Unit
30 dB
dB V
122
1 [T2]
90.27 dB V
745.490982  s
1 [T2]
110
1.65 dB
SGL
246.492986  s
TRG
100
IN1
90
2MAX
2MA
80
P0
70
60
50
40
30
22
100  s/
Center 312.5 MHz
Date:
28.APR.2017
10:47:34
Duty Cycle
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 312.5MHz
4/28/2017 10:30:19 AM
narrow pulse is 246.5usec
Page 19 of 57
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
94.89 dB V
Ref Lvl
122 dB V
10.420842 ms
RBW
100 kHz
VBW
100 kHz
SWT
20 ms
RF Att
Unit
30 dB
dB V
122
1 [T2]
94.89 dB V
10.420842 ms
1 [T2]
110
-0.01 dB
480.961924  s
SGL
TRG
100
1 1
IN1
90
2MAX
2MA
80
P0
70
60
50
40
30
22
Center 312.5 MHz
Date:
28.APR.2017
2 ms/
10:50:48
Duty Cycle
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 312.5MHz
4/28/2017 10:33:33 AM
wide pulse is 480usec
Page 20 of 57
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
94.75 dB V
Ref Lvl
122 dB V
5.600000 ms
RBW
100 kHz
VBW
100 kHz
SWT
100 ms
RF Att
Unit
30 dB
dB V
122
1 [T2]
94.75 dB V
5.600000 ms
110
SGL
TRG
100
IN1
90
2MAX
2MA
80
P0
70
60
50
40
30
22
Center 312.5 MHz
Date:
28.APR.2017
10 ms/
10:44:45
Duty Cycle
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 312.5MHz
4/28/2017 10:27:30 AM
Page 21 of 57
Engineering Test Report No. 1701673-01 Rev. A
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Engineering Test Report No. 1701673-01 Rev. A
Page 33 of 57
Engineering Test Report No. 1701673-01 Rev. A
MANUFACTURER
EUT
SPECIFICATION
TEST
MODE
DATE TESTED
Chamberlain Group, Inc.
821LMB-SENSOR and MYQ-G0302 Door Sensor
FCC 15C, Section 15.231(b) and RSS-210 Annex A, Table A1
Radiated Emissions
Transmit at 311.88MHz, mode 73
04/27/2017
Freq.
(MHz)
Ant
Pol
Meter
Reading
(dBuV)
CBL
Fac
(dB)
Ant
Fac
(dB)
Pre
Amp
(dB)
Duty
Cycle
(dB)
Total
(dBuV/m)
Total
(uV/m)
Limit
(uV/m)
Margin
(dB)
311.880
66.9
1.8
19.4
0.0
-13.5
74.6
5398.8
5911.7
-0.8
311.880
49.0
1.8
19.4
0.0
-13.5
56.7
687.5
5911.7
-18.7
623.760
25.0
2.5
24.9
0.0
-13.5
38.9
88.0
591.2
-16.5
623.760
22.8
2.5
24.9
0.0
-13.5
36.7
68.3
591.2
-18.7
935.640
27.8
2.9
27.0
0.0
-13.5
44.2
161.7
591.2
-11.3
935.640
22.3
2.9
27.0
0.0
-13.5
38.7
85.9
591.2
-16.8
1247.520
18.7
3.1
29.1
0.0
-13.5
37.4
73.8
591.2
-18.1
1247.520
17.0
3.1
29.1
0.0
-13.5
35.7
60.7
591.2
-19.8
1559.400
18.3
3.2
28.2
0.0
-13.5
36.2
64.4
500.0
-17.8
1559.400
18.0
3.2
28.2
0.0
-13.5
35.9
62.2
500.0
-18.1
1871.280
16.6
Ambient
3.3
30.8
0.0
-13.5
37.1
71.8
591.2
-18.3
1871.280
16.9
Ambient
3.3
30.8
0.0
-13.5
37.4
74.3
591.2
-18.0
2183.160
19.8
3.3
31.7
0.0
-13.5
41.3
116.0
591.2
-14.1
2183.160
19.1
3.3
31.7
0.0
-13.5
40.6
107.0
591.2
-14.8
2495.040
16.5
Ambient
3.4
32.2
0.0
-13.5
38.6
85.0
500.0
-15.4
2495.040
16.6
Ambient
3.4
32.2
0.0
-13.5
38.7
86.0
500.0
-15.3
2806.920
18.0
Ambient
3.8
32.5
0.0
-13.5
40.9
110.7
500.0
-13.1
2806.920
16.8
Ambient
3.8
32.5
0.0
-13.5
39.7
96.4
500.0
-14.3
3118.800
15.9
Ambient
4.3
32.9
0.0
-13.5
39.6
95.5
591.2
-15.8
3118.800
16.0
Ambient
4.3
32.9
0.0
-13.5
39.7
96.6
591.2
-15.7
Ambient
Tested By:
Mark E. Longinotti
Page 34 of 57
Engineering Test Report No. 1701673-01 Rev. A
MANUFACTURER
EUT
SPECIFICATION
TEST
MODE
DATE TESTED
Chamberlain Group, Inc.
821LMB-SENSOR and MYQ-G0302 Door Sensor
FCC 15C, Section 15.231(b) and RSS-210 Annex A, Table A1
Radiated Emissions
Transmit at 312.5MHz, mode 73
04/27/2017
Freq.
(MHz)
Ant
Pol
Meter
Reading
(dBuV)
CBL
Fac
(dB)
Ant
Fac
(dB)
Pre
Amp
(dB)
Duty
Cycle
(dB)
Total
(dBuV/m)
Total
(uV/m)
Limit
(uV/m)
Margin
(dB)
312.500
66.7
1.8
19.5
0.0
-13.5
74.5
5284.2
5937.5
-1.0
312.500
49.1
1.8
19.5
0.0
-13.5
56.9
696.6
5937.5
-18.6
625.000
25.8
2.5
24.9
0.0
-13.5
39.7
96.6
593.7
-15.8
625.000
23.5
2.5
24.9
0.0
-13.5
37.4
74.2
593.7
-18.1
937.500
27.4
2.9
27.0
0.0
-13.5
43.8
155.0
593.7
-11.7
937.500
22.2
2.9
27.0
0.0
-13.5
38.6
85.2
593.7
-16.9
1250.000
18.3
3.1
29.1
0.0
-13.5
37.0
70.5
593.7
-18.5
1250.000
17.8
3.1
29.1
0.0
-13.5
36.5
66.6
593.7
-19.0
1562.500
17.9
3.2
28.2
0.0
-13.5
35.8
61.7
500.0
-18.2
1562.500
18.5
3.2
28.2
0.0
-13.5
36.4
66.1
500.0
-17.6
1875.000
16.3
Ambient
3.3
30.8
0.0
-13.5
36.9
69.6
593.7
-18.6
1875.000
16.5
Ambient
3.3
30.8
0.0
-13.5
37.1
71.2
593.7
-18.4
2187.500
20.4
3.3
31.6
0.0
-13.5
41.9
124.3
593.7
-13.6
2187.500
19.0
3.3
31.6
0.0
-13.5
40.5
105.8
593.7
-15.0
2500.000
16.5
Ambient
3.4
32.2
0.0
-13.5
38.6
85.1
500.0
-15.4
2500.000
16.7
Ambient
3.4
32.2
0.0
-13.5
38.8
87.1
500.0
-15.2
2812.500
17.9
Ambient
3.8
32.6
0.0
-13.5
40.8
109.6
500.0
-13.2
2812.500
17.8
Ambient
3.8
32.6
0.0
-13.5
40.7
108.4
500.0
-13.3
3125.000
15.4
Ambient
4.3
32.9
0.0
-13.5
39.1
90.4
593.7
-16.4
3125.000
15.5
Ambient
4.3
32.9
0.0
-13.5
39.2
91.4
593.7
-16.3
Ambient
Ambient
Tested By:
Mark E. Longinotti
Page 35 of 57
Engineering Test Report No. 1701673-01 Rev. A
MANUFACTURER
EUT
SPECIFICATION
TEST
MODE
DATE TESTED
Chamberlain Group, Inc.
821LMB-SENSOR and MYQ-G0302 Door Sensor
FCC 15C, Section 15.231(b) and RSS-210 Annex A, Table A1
Radiated Emissions
Transmit at 313.12MHz, mode 73
04/27/2017
Freq.
(MHz)
Ant
Pol
Meter
Reading
(dBuV)
CBL
Fac
(dB)
Ant
Fac
(dB)
Pre
Amp
(dB)
Duty
Cycle
(dB)
Total
(dBuV/m)
Total
(uV/m)
Limit
(uV/m)
Margin
(dB)
313.120
66.9
1.8
19.5
0.0
-13.5
74.7
5415.7
5963.3
-0.8
313.120
48.8
1.8
19.5
0.0
-13.5
56.6
674.0
5963.3
-18.9
626.240
26.6
2.5
24.9
0.0
-13.5
40.5
106.1
596.3
-15.0
626.240
23.5
2.5
24.9
0.0
-13.5
37.4
74.2
596.3
-18.1
939.360
27.4
2.9
27.0
0.0
-13.5
43.8
155.5
596.3
-11.7
939.360
22.7
2.9
27.0
0.0
-13.5
39.1
90.5
596.3
-16.4
1252.480
19.0
3.1
29.1
0.0
-13.5
37.7
76.3
596.3
-17.9
1252.480
17.7
3.1
29.1
0.0
-13.5
36.4
65.7
596.3
-19.2
1565.600
17.7
3.2
28.3
0.0
-13.5
35.6
60.5
500.0
-18.3
1565.600
17.6
3.2
28.3
0.0
-13.5
35.5
59.8
500.0
-18.4
1878.720
17.0
Ambient
3.3
30.8
0.0
-13.5
37.6
75.7
596.3
-17.9
1878.720
16.3
Ambient
3.3
30.8
0.0
-13.5
36.9
69.8
596.3
-18.6
2191.840
19.4
3.3
31.6
0.0
-13.5
40.9
110.7
596.3
-14.6
2191.840
18.7
3.3
31.6
0.0
-13.5
40.2
102.1
596.3
-15.3
2504.960
16.7
Ambient
3.4
32.2
0.0
-13.5
38.8
87.2
596.3
-16.7
2504.960
16.8
Ambient
3.4
32.2
0.0
-13.5
38.9
88.2
596.3
-16.6
2818.080
17.1
Ambient
3.9
32.6
0.0
-13.5
40.0
100.1
500.0
-14.0
2818.080
17.1
Ambient
3.9
32.6
0.0
-13.5
40.0
100.1
500.0
-14.0
3131.200
15.7
Ambient
4.3
32.9
0.0
-13.5
39.4
93.7
596.3
-16.1
3131.200
15.9
Ambient
4.3
32.9
0.0
-13.5
39.6
95.9
596.3
-15.9
Ambient
Tested By:
Mark E. Longinotti
Page 36 of 57
Engineering Test Report No. 1701673-01 Rev. A
Page 37 of 57
Engineering Test Report No. 1701673-01 Rev. A
Page 38 of 57
Engineering Test Report No. 1701673-01 Rev. A
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Engineering Test Report No. 1701673-01 Rev. A
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Engineering Test Report No. 1701673-01 Rev. A
Page 41 of 57
Engineering Test Report No. 1701673-01 Rev. A
Page 42 of 57
Engineering Test Report No. 1701673-01 Rev. A
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Page 45 of 57
Engineering Test Report No. 1701673-01 Rev. A
Page 46 of 57
Engineering Test Report No. 1701673-01 Rev. A
Page 47 of 57
Engineering Test Report No. 1701673-01 Rev. A
Page 48 of 57
Engineering Test Report No. 1701673-01 Rev. A
MANUFACTURER
EUT
SPECIFICATION
TEST
MODE
DATE TESTED
Chamberlain Group, Inc.
821LMB-SENSOR and MYQ-G0302 Door Sensor
FCC 15C, Section 15.231(e) and RSS-210 Annex A, Table A2
Radiated Emissions
Transmit at 311.88MHz, mode 41
04/27/2017 and April 28, 2017
Freq.
(MHz)
Ant
Pol
Meter
Reading
(dBuV)
CBL
Fac
(dB)
Ant
Fac
(dB)
Pre
Amp
(dB)
Duty
Cycle
(dB)
Total
(dBuV/m)
Total
(uV/m)
Limit
(uV/m)
Margin
(dB)
311.800
58.9
1.8
19.4
0.0
-13.5
66.6
2148.9
2363.3
-0.8
311.800
42.0
1.8
19.4
0.0
-13.5
49.7
307.0
2363.3
-17.7
623.600
7.8
2.5
24.9
0.0
-13.5
21.7
12.1
236.3
-25.8
623.600
7.6
2.5
24.9
0.0
-13.5
21.5
11.9
236.3
-26.0
935.400
15.7
2.9
27.0
0.0
-13.5
32.1
40.1
236.3
-15.4
935.400
12.8
2.9
27.0
0.0
-13.5
29.2
28.7
236.3
-18.3
1247.200
15.1
Ambient
3.1
29.1
0.0
-13.5
33.8
48.7
500.0
-20.2
1247.200
16.0
Ambient
3.1
29.1
0.0
-13.5
34.7
54.1
500.0
-19.3
1559.000
17.1
Ambient
3.2
28.2
0.0
-13.5
35.0
56.1
500.0
-19.0
1559.000
16.2
Ambient
3.2
28.2
0.0
-13.5
34.1
50.6
500.0
-19.9
1870.800
16.2
Ambient
3.3
30.7
0.0
-13.5
36.7
68.5
500.0
-17.3
1870.800
16.7
Ambient
3.3
30.7
0.0
-13.5
37.2
72.6
500.0
-16.8
2182.600
16.8
Ambient
3.3
31.7
0.0
-13.5
38.3
82.1
500.0
-15.7
2182.600
17.6
Ambient
3.3
31.7
0.0
-13.5
39.1
90.0
500.0
-14.9
2494.400
16.8
Ambient
3.4
32.2
0.0
-13.5
38.9
88.0
500.0
-15.1
2494.400
16.8
Ambient
3.4
32.2
0.0
-13.5
38.9
88.0
500.0
-15.1
2806.200
17.0
Ambient
3.8
32.5
0.0
-13.5
39.9
98.7
500.0
-14.1
2806.200
17.3
Ambient
3.8
32.5
0.0
-13.5
40.2
102.1
500.0
-13.8
3118.000
15.6
Ambient
4.3
32.9
0.0
-13.5
39.3
92.2
500.0
-14.7
3118.000
15.8
Ambient
4.3
32.9
0.0
-13.5
39.5
94.4
500.0
-14.5
Ambient
Tested By:
Mark E. Longinotti
Page 49 of 57
Engineering Test Report No. 1701673-01 Rev. A
MANUFACTURER
EUT
SPECIFICATION
TEST
MODE
DATE TESTED
Chamberlain Group, Inc.
821LMB-SENSOR and MYQ-G0302 Door Sensor
FCC 15C, Section 15.231(e) and RSS-210 Annex A, Table A2
Radiated Emissions
Transmit at 312.5MHz, mode 41
04/27/2017 and April 28, 2017
Freq.
(MHz)
Ant
Pol
Meter
Reading
(dBuV)
CBL
Fac
(dB)
Ant
Fac
(dB)
Pre
Amp
(dB)
Duty
Cycle
(dB)
Total
(dBuV/m)
Total
(uV/m)
Limit
(uV/m)
Margin
(dB)
312.500
58.9
1.8
19.5
0.0
-13.5
66.7
2152.7
2375.0
-0.9
312.500
42.3
1.8
19.5
0.0
-13.5
50.1
318.4
2375.0
-17.5
625.000
7.8
2.5
24.9
0.0
-13.5
21.7
12.2
237.5
-25.8
625.000
7.8
2.5
24.9
0.0
-13.5
21.7
12.2
237.5
-25.8
937.500
16.2
2.9
27.0
0.0
-13.5
32.6
42.7
237.5
-14.9
937.500
11.5
2.9
27.0
0.0
-13.5
27.9
24.8
237.5
-19.6
1250.000
15.8
Ambient
3.1
29.1
0.0
-13.5
34.5
52.9
500.0
-19.5
1250.000
15.4
Ambient
3.1
29.1
0.0
-13.5
34.1
50.5
500.0
-19.9
1562.500
16.8
Ambient
3.2
28.2
0.0
-13.5
34.7
54.4
500.0
-19.3
1562.500
17.3
Ambient
3.2
28.2
0.0
-13.5
35.2
57.6
500.0
-18.8
1875.000
15.9
Ambient
3.3
30.8
0.0
-13.5
36.5
66.5
500.0
-17.5
1875.000
16.4
Ambient
3.3
30.8
0.0
-13.5
37.0
70.4
500.0
-17.0
2187.500
16.4
Ambient
3.3
31.6
0.0
-13.5
37.9
78.4
500.0
-16.1
2187.500
15.9
Ambient
3.3
31.6
0.0
-13.5
37.4
74.0
500.0
-16.6
2500.000
17.0
Ambient
3.4
32.2
0.0
-13.5
39.1
90.2
500.0
-14.9
2500.000
16.4
Ambient
3.4
32.2
0.0
-13.5
38.5
84.2
500.0
-15.5
2812.500
17.2
Ambient
3.8
32.6
0.0
-13.5
40.1
101.1
500.0
-13.9
2812.500
16.9
Ambient
3.8
32.6
0.0
-13.5
39.8
97.7
500.0
-14.2
3125.000
15.5
Ambient
4.3
32.9
0.0
-13.5
39.2
91.4
500.0
-14.8
3125.000
15.3
Ambient
4.3
32.9
0.0
-13.5
39.0
89.3
500.0
-15.0
Ambient
Tested By:
Mark E. Longinotti
Page 50 of 57
Engineering Test Report No. 1701673-01 Rev. A
MANUFACTURER
EUT
SPECIFICATION
TEST
MODE
DATE TESTED
Chamberlain Group, Inc.
821LMB-SENSOR and MYQ-G0302 Door Sensor
FCC 15C, Section 15.231(e) and RSS-210 Annex A, Table A2
Radiated Emissions
Transmit at 313.12MHz, mode 41
04/27/2017 and April 28, 2017
Freq.
(MHz)
Ant
Pol
Meter
Reading
(dBuV)
CBL
Fac
(dB)
Ant
Fac
(dB)
Pre
Amp
(dB)
Duty
Cycle
(dB)
Total
(dBuV/m)
Total
(uV/m)
Limit
(uV/m)
Margin
(dB)
313.120
59.0
1.8
19.5
0.0
-13.5
66.8
2181.0
2385.3
-0.8
313.120
42.4
1.8
19.5
0.0
-13.5
50.2
322.6
2385.3
-17.4
626.240
8.0
2.5
24.9
0.0
-13.5
21.9
12.5
238.5
-25.6
626.240
7.6
2.5
24.9
0.0
-13.5
21.5
11.9
238.5
-26.0
939.360
15.8
2.9
27.0
0.0
-13.5
32.2
40.9
238.5
-15.3
939.360
12.0
2.9
27.0
0.0
-13.5
28.4
26.4
238.5
-19.1
1252.480
15.3
Ambient
3.1
29.1
0.0
-13.5
34.0
49.8
500.0
-20.0
1252.480
15.6
Ambient
3.1
29.1
0.0
-13.5
34.3
51.6
500.0
-19.7
1565.600
15.7
Ambient
3.2
28.3
0.0
-13.5
33.6
48.1
500.0
-20.3
1565.600
16.3
Ambient
3.2
28.3
0.0
-13.5
34.2
51.5
500.0
-19.7
1878.720
16.2
Ambient
3.3
30.8
0.0
-13.5
36.8
69.0
500.0
-17.2
1878.720
16.5
Ambient
3.3
30.8
0.0
-13.5
37.1
71.5
500.0
-16.9
2191.840
16.5
Ambient
3.3
31.6
0.0
-13.5
38.0
79.3
500.0
-16.0
2191.840
16.0
Ambient
3.3
31.6
0.0
-13.5
37.5
74.9
500.0
-16.5
2504.960
16.0
Ambient
3.4
32.2
0.0
-13.5
38.1
80.4
500.0
-15.9
2504.960
16.1
Ambient
3.4
32.2
0.0
-13.5
38.2
81.4
500.0
-15.8
2818.080
18.0
Ambient
3.9
32.6
0.0
-13.5
40.9
111.1
500.0
-13.1
2818.080
16.6
Ambient
3.9
32.6
0.0
-13.5
39.5
94.5
500.0
-14.5
3131.200
17.0
Ambient
4.3
32.9
0.0
-13.5
40.7
108.9
500.0
-13.2
3131.200
15.7
Ambient
4.3
32.9
0.0
-13.5
39.4
93.7
500.0
-14.5
Ambient
Tested By:
Mark E. Longinotti
Page 51 of 57
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
RBW
30 kHz
104.13 dB V
VBW
100 kHz
311.90280561 MHz
SWT
Ref Lvl
122 dB V
6 ms
RF Att
Unit
30 dB
dB V
122
110
100
IN1
90
2VIEW
D1 84.13
dB V
2MA
80
P0
70
60
50
40
30
F2
F1
22
Center 311.9008016 MHz
Date:
28.APR.2017
200 kHz/
10:23:36
Occupied Bandwidth
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 311.88MHz, Mode 73
4/28/2017 10:06:20 AM
15.231(b)
Page 52 of 57
Span 2 MHz
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
RBW
30 kHz
104.17 dB V
VBW
100 kHz
312.52404810 MHz
SWT
Ref Lvl
122 dB V
6 ms
RF Att
Unit
30 dB
dB V
122
1 [T2]
104.17 dB V
312.52404810 MHz
110
100
IN1
90
2VIEW
D1 84.17
dB V
2MA
80
P0
70
60
50
40
30
F2
F1
22
Center 312.5220441 MHz
Date:
28.APR.2017
200 kHz/
10:31:38
Occupied Bandwidth
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 312.5MHz, Mode 73
4/28/2017 10:14:23 AM
15.231(b)
Page 53 of 57
Span 2 MHz
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
RBW
30 kHz
104.19 dB V
VBW
100 kHz
313.13927856 MHz
SWT
Ref Lvl
122 dB V
6 ms
RF Att
Unit
30 dB
dB V
122
110
100
IN1
90
2VIEW
D1 84.18
dB V
2MA
80
P0
70
60
50
40
30
F2
F1
22
Center 313.1372745 MHz
Date:
28.APR.2017
200 kHz/
10:18:18
Occupied Bandwidth
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 313.1MHz, Mode 73
4/28/2017 10:01:02 AM
15.231(b)
Page 54 of 57
Span 2 MHz
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
RBW
30 kHz
91.88 dB V
VBW
100 kHz
311.89679359 MHz
SWT
Ref Lvl
102 dB V
6 ms
RF Att
Unit
10 dB
dB V
102
90
80
D1 71.88 dB V
70
IN1
2VIEW
2MA
60
P0
50
40
30
20
10
F2
F1
Center 311.8987976 MHz
Date:
28.APR.2017
200 kHz/
09:56:27
321
Occupied Bandwidth
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Span 2 MHz
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 311.88MHz, Mode 41
4/28/2017 9:39:46 AM
15.231(e)
Page 55 of 57
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
RBW
30 kHz
91.67 dB V
VBW
100 kHz
312.52004008 MHz
SWT
Ref Lvl
102 dB V
6 ms
RF Att
Unit
10 dB
dB V
102
90
80
D1 71.67 dB V
70
IN1
2VIEW
2MA
60
P0
50
40
30
20
10
F2
F1
Center 312.5180361 MHz
Date:
28.APR.2017
200 kHz/
10:02:24
Occupied Bandwidth
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 312.5MHz, Mode 41
4/28/2017 9:45:36 AM
15.231(e)
Page 56 of 57
Span 2 MHz
Engineering Test Report No. 1701673-01 Rev. A
Marker 1 [T2]
RBW
30 kHz
91.74 dB V
VBW
100 kHz
313.13927856 MHz
SWT
Ref Lvl
102 dB V
6 ms
RF Att
Unit
10 dB
dB V
102
90
80
D1 71.74 dB V
70
IN1
2VIEW
2MA
60
P0
50
40
30
20
10
F2
F1
Center 313.1372745 MHz
Date:
28.APR.2017
200 kHz/
10:13:15
Occupied Bandwidth
Manufacturer
Model Number
Serial Number
Mode
Date
Notes
Chamberlain
821LMB-SENSOR and MYQ-G0302 Door Sensor
Tx @ 313.1MHz, Mode 41
4/28/2017 9:55:59 AM
15.231(e)
Page 57 of 57
Span 2 MHz
Download: 8628 Models 821LMB-SENSOR and MYQ-G0302 Door Sensor Test Report  Chamberlain Group Inc, The
Mirror Download [FCC.gov]8628 Models 821LMB-SENSOR and MYQ-G0302 Door Sensor Test Report  Chamberlain Group Inc, The
Document ID3393280
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SupercedeNo
Document TypeTest Report
Display FormatAdobe Acrobat PDF - pdf
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Date Submitted2017-05-16 00:00:00
Date Available2017-05-16 00:00:00
Creation Date2017-10-24 18:34:38
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