Test Report

FCC ID: Q9SAWRDRP9050

Test Report

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Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

TABLE OF CONTENTS

GENERAL INFORMATION .......................................................................................................................................4
PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .....................................................................................4
OBJECTIVE ...................................................................................................................................................................4
RELATED SUBMITTAL(S)/GRANT(S) .............................................................................................................................4
TEST METHODOLOGY ..................................................................................................................................................4
MEASUREMENT UNCERTAINTY ....................................................................................................................................5
TEST FACILITY .............................................................................................................................................................5
SYSTEM TEST CONFIGURATION ..........................................................................................................................6
DESCRIPTION OF TEST CONFIGURATION ......................................................................................................................6
EUT EXERCISE SOFTWARE ..........................................................................................................................................6
EQUIPMENT MODIFICATIONS .......................................................................................................................................6
LOCAL SUPPORT EQUIPMENT LIST AND DETAILS ........................................................................................................6
BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................6
SUMMARY OF TEST RESULTS ...............................................................................................................................7
TEST EQUIPMENT LIST ...........................................................................................................................................8
FCC §1.1310 & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) .........................................................9
APPLICABLE STANDARD ..............................................................................................................................................9
FCC §2.1046 & §90.205 - RF OUTPUT POWER ....................................................................................................10
APPLICABLE STANDARD ............................................................................................................................................10
TEST PROCEDURE ......................................................................................................................................................10
TEST DATA ................................................................................................................................................................10
FCC §2.1047 - MODULATION CHARACTERISTIC ............................................................................................11
APPLICABLE STANDARD ............................................................................................................................................11
TEST PROCEDURE ......................................................................................................................................................11
TEST DATA ................................................................................................................................................................11
FCC §2.1049 & §90.209 & §90.210 – OCCUPIED BANDWIDTH & EMISSION MASK ..................................15
APPLICABLE STANDARD ............................................................................................................................................15
TEST PROCEDURE ......................................................................................................................................................15
TEST DATA ................................................................................................................................................................15
FCC §2.1051 & §90.210 - SPURIOUS EMISSIONS AT ANTENNA TERMINALS ............................................21
APPLICABLE STANDARD ............................................................................................................................................21
TEST PROCEDURE ......................................................................................................................................................21
TEST DATA ................................................................................................................................................................21
FCC §2.1053 §90.210 - RADIATED SPURIOUS EMISSIONS .............................................................................24
APPLICABLE STANDARD ............................................................................................................................................24
TEST PROCEDURE ......................................................................................................................................................24
TEST DATA ................................................................................................................................................................24
FCC §2.1055 & §90.213 - FREQUENCY STABILITY ............................................................................................26
APPLICABLE STANDARD ............................................................................................................................................26
TEST PROCEDURE ......................................................................................................................................................26
TEST DATA ................................................................................................................................................................26

Page 2 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FCC §90.214 - TRANSIENT FREQUENCY BEHAVIOR ......................................................................................28
APPLICABLE STANDARD ............................................................................................................................................28
TEST PROCEDURE ......................................................................................................................................................28
TEST DATA ................................................................................................................................................................29

Page 3 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

GENERAL INFORMATION
Product Description for Equipment under Test (EUT)

EUT Name: Digital Repeater
EUT Model: AWR-DRP9050
Modulation Type: FM, 4FSK
Channel Spacing: 12.5 kHz
Frequency Range: 400-470 MHz
Rated Output Power: High Power Level: 50W
(Conducted) Low Power Level: 5W
Rated Input Voltage: 110-240V AC
External Dimension: 482mm(L)*440mm(W)*89mm(H)
Serial Number: 190320009
EUT Received Date: 2019.3.20

Objective
This test report is prepared on behalf of Northfield Telecommunications, Inc. d/b/a Advanced Wireless
Communications in accordance with Part 2, and Part 90 of the Federal Communication Commissions rules.

Related Submittal(s)/Grant(s)
No related submittal(s)/grant(s).

Test Methodology
All tests and measurements indicated in this document were performed in accordance with the Code of
federal Regulations Title 47 Part 2, Sub-part J as well as the following individual parts:

Part 90 – Private Land Mobile Radio Service

Applicable Standards: TIA 603-D.

All emissions measurement was performed at Bay Area Compliance Laboratories Corp. (Dongguan). The
radiated testing was performed at an antenna-to-EUT distance of 3 meters.

Page 4 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

Measurement Uncertainty
Parameter Measurement Uncertainty
Occupied Channel Bandwidth ±5 %
RF output power, conducted ±0.61dB
30MHz～1GHz:5.85 dB
Unwanted Emissions, radiated
1G~26.5GHz: 5.23 dB
Unwanted Emissions, conducted ±1.5 dB
Temperature ±1℃
Humidity ±5%
DC and low frequency voltages ±0.4%
Duty Cycle 1%

Test Facility
The Test site used by Bay Area Compliance Laboratories Corp. (Dongguan) to collect test data is located
on the No.69 Pulongcun, Puxinhu Industry Area, Tangxia, Dongguan, Guangdong, China.

The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the
FCC Public Access Link (PAL) database, FCC Registration No. : 897218, the FCC Designation No. :
CN1220.

The lab has been recognized by Innovation, Science and Economic Development Canada to test to
Canadian radio equipment requirements, the CAB identifier: CN0022.

Page 5 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

SUMMARY OF TEST RESULTS

FCC Rules Description of Test Results

§1.1310&§2.1091 Maximum Permissible Exposure (MPE) Compliance

§2.104;§90.205 RF Output Power Compliance

§2.1047 Modulation Characteristic Compliance
§2.1049;
Occupied Bandwidth & Emission Mask Compliance
§90.209; §90.210
§2.1051; §90.210 Spurious Emission at Antenna Terminal Compliance

§2.1053; §90.210 Spurious Radiated Emissions Compliance

§2.1055; §90.213 Frequency Stability Compliance

§90.214 Transient Frequency Behavior Compliance

Page 7 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

TEST EQUIPMENT LIST
Calibration Calibration
Manufacturer Description Model Serial Number
Date Due Date
Radiated Emission Test
R&S EMI Test Receiver ESPI 100120 2018-12-10 2019-12-10
Sunol Sciences Antenna JB3 A060611-1 2017-11-10 2020-11-10
Adjustable Dipole
EMCO 3121C 9109-753 N/A N/A
Antenna
Unknown Coaxial Cable C-NJNJ-50 C-0400-01 2018-09-05 2019-09-05
Unknown Coaxial Cable C-NJNJ-50 C-0075-01 2018-09-05 2019-09-05
Unknown Coaxial Cable C-NJNJ-50 C-1400-01 2018-05-06 2019-05-06
Unknown Coaxial Cable C-NJNJ-50 C-0200-02 2018-09-05 2019-09-05
HP Amplifier 8447D 2727A05902 2018-09-05 2019-09-05
Agilent Signal Generator E8247C MY43321350 2018-12-10 2019-12-10
Agilent Spectrum Analyzer E4440A SG43360054 2019-01-04 2020-01-04
TDK RF Horn Antenna HRN-0118 130 084 2018-10-12 2021-10-12
ETS-Lindgren Horn Antenna 3115 000 527 35 2018-10-12 2021-10-12
Unknown Coaxial Cable C-SJSJ-50 C-0800-01 2018-09-05 2019-09-05
Unknown Coaxial Cable C-NJNJ-50 C-0200-02 2018-09-05 2019-09-05
AFS42-
MITEQ Amplifier 00101800-25-S- 2001271 2018-09-05 2019-09-05
42
Agilent Signal Generator E8247C MY43321350 2018-12-10 2019-12-10
RF Conducted Test
Rohde & Schwarz Signal Analyzer FSIQ26 831929/005 2018-08-03 2019-08-03
Unknown Coaxial Cable C-SJ00-0010 C0011/05 Each time N/A
E-Microwave Blocking Control EMDCB-00036 0E01201047 Each time N/A
Weinschel Coaxial Attenuators 53-20-34 LN749 Each time N/A
OuLi Band Rejector Filter 400-470 003 Each time N/A
RF Communications
HP 8920A 3438A05201 2019-01-04 2020-01-04
Test Set
Constant temperature
ESPEC ESX-4CA 018 463 2019-03-26 2020-03-26
and humidity Tester
UNI-T Multimeter UT39A M130199938 2018-07-24 2019-07-24
LEADER Millivoltmeter LMV-181A 601788 2018-08-11 2019-08-10

* Statement of Traceability: Bay Area Compliance Laboratories Corp. (Dongguan) attests that all calibrations have
been performed, traceable to National Primary Standards and International System of Units (SI).

Page 8 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FCC §1.1310 & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE)
Applicable Standard
According to 1.1310, 2.1091 systems operating under the provisions of this section shall be operated in a
manner that ensures the public is not exposed to RF energy level in excess of the communication
guidelines.

Limits for Maximum Permissible Exposure (MPE)

Limits for Occupational/Controlled Exposure
Electric Field Averaging Time
Frequency Magnetic Field Power Density (S)
Strength (E) |E|, |H| or S
Range (MHz) Strength (H) (A/m) (mW/cm2)
(V/m) (minutes)
0.3- 3.0 614 1.63 (100)* 6
2
3.0 - 30 1842/f 4.89/f (900/f )* 6
30-300 61.4 0.163 1.0 6
300-1500 / / f/300 6
1500-100,000 / / 5 6

f = frequency in MHz;
* = Plane-wave equivalent power density;

MPE Calculation
Prediction of power density at the distance of the applicable MPE limit

S = PG/4R2
Where: S = power density (in appropriate units, e.g. mW/cm2);
P = power input to the antenna (in appropriate units, e.g., mW);
G = power gain of the antenna in the direction of interest relative to an isotropic radiator
R = distance to the center of radiation of the antenna (appropriate units, e.g., cm);

MPE Results

Antenna Gain Maximum
Operation Power
Average output Evaluation Power
Frequency Duty Density
power including Distance Density
(MHz) (dBi) (numeric) Cycle Limit
Tune-up Tolerance (cm) (mW/cm2)
(%) (mW/cm2)
(mW)
400-470 0 1.0 50000 50 70 0.41 1.33

Note: the maximum power including Tune-up Tolerance is 50 W.

Result: The device meet FCC MPE at 70 cm distance

Page 9 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FCC §2.1046 & §90.205 - RF OUTPUT POWER
Applicable Standard
FCC §2.1046, §90.205

Test Procedure
Conducted RF Output Power:

The RF output of the transmitter was connected to the input of the spectrum analyzer through sufficient
attenuation.

Spectrum Analyzer Setting:

R B/W Video B/W
100 kHz 300 kHz

Test Data
Environmental Conditions

Temperature: 26.4 ℃
Relative Humidity: 56 %
ATM Pressure: 100.9 kPa

The testing was performed by Blake Yang on 2019-05-10

Test Mode: Transmitting
Test Result: Compliance. Please refer to following table.

Channel Reading
Modulation fc (W)
Separation
Mode (MHz)
(kHz) High Power Level Low Power Level
400.0125 49.091 5.309
FM 12.5kHz 453.2125 49.993 4.875
469.9875 45.290 5.023
400.0125 48.417 5.470
4FSK 12.5kHz 453.2125 49.204 5.023
469.9875 45.361 5.572

Note: The rated high power level is 50W, and rated low power level is 5W.

Page 10 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FCC §2.1047 - MODULATION CHARACTERISTIC
Applicable Standard
FCC §2.1047

(a) Equipment which utilizes voice modulated communication shall show the frequency response of the
audio modulating circuit over a range of 100 to 5000 Hz. for equipment which is required to have a
low pass filter, the frequency response of the filter, or all of the circuitry installed between the
modulation limited and the modulated stage shall be supplied.
(b) Equipment which employs modulation limiting, a curve showing the percentage of modulation versus
the modulation input voltage shall be supplied.

Test Procedure
Test Method: TIA/EIA-603 2.2.3

Test Data
Environmental Conditions

Temperature: 26.4 ℃
Relative Humidity: 56 %
ATM Pressure: 100.9 kPa

The testing was performed by Blake Yang on 2019-05-10

Test Mode: Transmitting

Result: Compliance.

Page 11 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FCC §2.1049 & §90.209 & §90.210 – OCCUPIED BANDWIDTH &
EMISSION MASK
Applicable Standard
FCC §2.1049, §90.209 and §90.210

Test Procedure
The RF output of the transmitter was connected to the input of the spectrum analyzer through sufficient
attenuation.

The resolution bandwidth of the spectrum analyzer was set at 100 Hz or 300 Hz and the spectrum was
recorded in the frequency band.

Test Data
Environmental Conditions

Temperature: 26.4 ℃
Relative Humidity: 56 %
ATM Pressure: 100.9 kPa

The testing was performed by Blake Yang on 2019-05-10

Page 15 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

Test mode: transimitting

Test 99% Occupied 26 dB
Modulation Channel Power
Frequency Bandwidth Bandwidth
Mode Separation Level
(MHz) (kHz) (kHz)
High 5.912 6.313
FM 12.5kHz
Low 5.912 6.513
453.2125
High 7.916 10.420
4FSK 12.5kHz
Low 7.816 10.922

Note: Emission bandwidth was based on calculation method instead of measurement.
Emission Designator
Per CFR 47 §2.201& §2.202, BW = 2M + 2D

For FM Mode (Channel Spacing: 12.5 kHz)
Emission Designator 11K0F3E
In this case, the maximum modulating frequency is 3.0 kHz with a 2.5 kHz deviation.
BW = 2(M+D) = 2*(3.0 kHz + 2.5 kHz) = 11 kHz = 11K0
F3E portion of the designator represents an FM voice transmission
Therefore, the entire designator for 12.5 kHz channel spacing FM mode is 11K0F3E.

For Digital Mode (Channel Spacing: 12.5 kHz)
Emission Designator 7K60F1D and 7K60F1E
The 99% energy rule (title 47CFR 2.1049) was used for digital mode. It basically states that 99% of the
modulation energy falls within X kHz, in this case, 7.60 kHz. The emission mask was obtained from
47CFR 90.210(d).
F1D and F1E portion of the designator indicates digital information.
Therefore, the entire designator for 12.5 kHz channel spacing digital mode is 7K60F1D and 7K60F1E.

Page 16 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FCC §2.1051 & §90.210 - SPURIOUS EMISSIONS AT ANTENNA
TERMINALS
Applicable Standard
FCC §2.1051, §90.210

Test Procedure
The RF output of the EUT was connected to a spectrum analyzer through appropriate attenuation. The
resolution bandwidth of the spectrum analyzer was set at 100 kHz for below 1GHz, and 1MHz for above
1GHz. Sufficient scans were taken to show any out of band emissions up to 10th harmonic.

Test Data
Environmental Conditions

Temperature: 26.4 ℃
Relative Humidity: 56 %
ATM Pressure: 100.9 kPa

The testing was performed by Blake Yang on 2019-05-10

Test Mode: Transmitting, please refer to the following plots.

Page 21 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FCC §2.1053 §90.210 - RADIATED SPURIOUS EMISSIONS
Applicable Standard
FCC §2.1053, §90.210

Test Procedure
The transmitter was placed on a wooden turntable, and it was transmitting into a non-radiating load, which
was also placed on the turntable.
The measurement antenna was placed at a distance of 3 meters from the EUT. During the tests, the antenna
height and polarization as well as EUT azimuth were varied in order to identify the maximum level of
emissions from the EUT .The test was performed by placing the EUT on 3-orthogonal axis.
The frequency range up to teeth harmonic of the fundamental frequency was investigated.
Remove the EUT and replace it with substitution antenna. A signal generator was connected to the
substitution antenna by a non-radiating cable. The absolute levels of the spurious emissions were measured
by the substitution.
Spurious emissions in dB =10 1g (TXpwr in Watts/0.001)-the absolute level

Test Data
Environmental Conditions

Temperature: 22.9~26.1 oC
Relative Humidity: 52~61%
ATM Pressure: 100.4~101.1kPa

* The testing was performed by Vern Shen &Lucy Lu from 2019-05-09&2019-05-14

Test Mode: Transmitting

Page 24 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

30MHz - 5GHz:
Substituted Method
Receiver Absolute
Frequency Polar Substituted Antenna Cable Limit Margin
Reading Level
(MHz) (H/V) Level Gain Loss (dBm) (dB)
(dBµV) (dBm)
(dBm) (dBd/dBi) (dB)
FM,Frequency: 453.2125MHz-12.5 kHz
906.4250 H 33.71 -63.16 0.00 1.03 -64.19 -20.00 44.19
906.4250 V 37.40 -61.44 0.00 1.03 -62.47 -20.00 42.47
88.20 H 50.00 -61.47 0.00 0.36 -61.83 -20.00 41.83
88.20 V 55.00 -58.82 0.00 0.36 -59.18 -20.00 39.18
1359.64 H 68.99 -44.37 8.72 1.20 -36.85 -20.00 16.85
1359.64 V 65.67 -48.41 8.72 1.20 -40.89 -20.00 20.89
1812.85 H 51.03 -63.15 11.19 0.72 -52.68 -20.00 32.68
1812.85 V 49.86 -64.88 11.19 0.72 -54.41 -20.00 34.41
4FSK,Frequency: 453.2125MHz-12.5 kHz
906.4250 H 35.80 -61.07 0.00 1.03 -62.10 -20.00 42.10
906.4250 V 36.79 -62.05 0.00 1.03 -63.08 -20.00 43.08
88.20 H 51.20 -60.27 0.00 0.36 -60.63 -20.00 40.63
88.20 V 54.52 -59.30 0.00 0.36 -59.66 -20.00 39.66
1359.64 H 66.94 -46.42 8.72 1.20 -38.90 -20.00 18.90
1359.64 V 69.23 -44.85 8.72 1.20 -37.33 -20.00 17.33

Note:
Absolute Level = Substituted Level - Cable loss + Antenna Gain
Margin = Limit- Absolute Level

Page 25 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FM,12.5kHz, Reference Frequency: 453.2125 MHz, Limit: ±1.5 ppm
Measured
Temperature Voltage Supplied Frequency Error
Frequency
(℃) (VAC) (ppm)
(MHz)
-30 453.21256 -0.33
-20 453.21251 0.61
-10 453.21256 -0.17
0 453.21253 0.23
10 120 453.21249 0.26
20 453.21250 0.24
30 453.21254 -0.92
40 453.21252 -0.03
50 453.21253 -0.12
20 138 453.21253 0.45
20 102 453.21256 -1.11

4FSK, 12.5kHz, Reference Frequency:453.2125 MHz, Limit: ±1.5 ppm
Measured
Temperature Voltage Supplied Frequency Error
Frequency
(℃) (VAC) (ppm)
(MHz)
-30 453.21249 0.23
-20 453.21249 -1.38
-10 453.21257 0.70
0 453.21253 -0.47
10 120 453.21255 -1.18
20 453.21257 0.19
30 453.21254 0.76
40 453.21251 -0.28
50 453.21249 -0.29
20 138 453.21251 0.21
20 102 453.21257 -1.24

Page 27 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

FCC §90.214 - TRANSIENT FREQUENCY BEHAVIOR
Applicable Standard
Regulations: FCC §90.214
Test method: ANSI/TIA-603-D 2010, section 2.2.19.3

Test Procedure
a) Connect the EUT and test equipment as shown on the following block diagram.
b) Set the Spectrum Analyzer to measure FM deviation, and tune the RF frequency to the transmitter
assigned frequency.
c) Set the signal generator to the assigned transmitter frequency and modulate it with a 1 kHz tone at
±12.5 kHz deviation and set its output level to -100dBm.
d) Turn on the transmitter.
e) Supply sufficient attenuation via the RF attenuator to provide an input level to the Spectrum Analyzer
that is 40 dB below the maximum allowed input power when the transmitter is operating at its rated
power level. Note this power level on the Spectrum Analyzer as P0.
f) Turn off the transmitter.
g) Adjust the RF level of the signal generator to provide RF power equal to P0. This signal generator RF
level shall be maintained throughout the rest of the measurement.
h) Remove the attenuation 1, so the input power to the Spectrum Analyzer is increased by 30 dB when the
transmitter is turned on.
i) Adjust the vertical amplitude control of the spectrum analyzer to display the 1000 Hz at ±4 divisions
vertically centered on the display. Set trigger mode of the Spectrum Analyzer to “Video”, and tune the
“trigger level” on suitable level. Then set the “tiger offset” to -10ms for turn on and -15ms for turn off.
j) Turn on the transmitter and the transient wave will be captured on the screen of Spectrum Analyzer.
Observe the stored display. The instant when the 1 kHz test signal is completely suppressed is
considered to be ton. The trace should be maintained within the allowed divisions during the period t1
and t2.
k) Then turn off the transmitter, and another transient wave will be captured on the screen of Spectrum
Analyzer. The trace should be maintained within the allowed divisions during the period t3.

EUT Attenuator 1 Attenuator 2
Combiner

Spectrum Analyzer
Spectrum Analyzer
Signal
Generator

Page 28 of 30

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG190320009-00A

Test Data
Environmental Conditions

Temperature: 26.4 ℃
Relative Humidity: 56 %
ATM Pressure: 100.9 kPa

The testing was performed by Blake Yang on 2019-05-10

Channel Spacing Transient Period
Transient Frequency Result
(kHz) (ms)
<10(t1) ±12.5 kHz
12.5 <25(t2) ±6.25 kHz Pass
<10(t3) ±12.5 kHz

Please refer to the following plots.

Page 29 of 30

Document Created: 2019-07-26 10:12:06
Document Modified: 2019-07-26 10:12:06

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