Test Report

FCC ID: DWNBR

Test Report

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FCCID_2364311

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

TABLE OF CONTENTS

1. TEST RESULT CERTIFICATION ........................................................................................ 3
2. EUT DESCRIPTION.............................................................................................................. 4
3. TEST METHODOLOGY ....................................................................................................... 5
4. FACILITIES AND ACCREDITATION ................................................................................. 5
5. CALIBRATION AND UNCERTAINTY................................................................................ 6
5.1. MEASURING INSTRUMENT CALIBRATION ........................................................... 6
5.2. MEASUREMENT UNCERTAINTY ............................................................................. 6
5.3. TEST AND MEASUREMENT EQUIPMENT............................................................... 7
6. SETUP OF EQUIPMENT UNDER TEST .............................................................................. 8
7. APPLICABLE LIMITS AND TEST RESULTS ..................................................................... 9
7.1 6dB &99% BANDWIDTH ............................................................................................ 9
7.2 PEAK OUTPUT POWER ............................................................................................. 12
7.3 MAXIMUM PERMISSIBLE EXPOSURE ................................................................... 16
7.4 AVERAGE POWER ..................................................................................................... 19
7.5 PEAK POWER SPECTRAL DENSITY ....................................................................... 20
7.6 CONDUCTED SPURIOUS EMISSIONS ..................................................................... 23
7.7 RADIATED EMISSIONS............................................................................................. 24
7.7.1. TRANSMITTER RADIATED SPURIOUS EMISSIONS ...................................... 24
7.7.2. TRANSMITTER RADIATED EMISSIONS DATA .............................................. 26
8. SETUP PHOTOS ................................................................................................................. 28
9. APENDIX ............................................................................................................................ 30

Page 2 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

2. EUT DESCRIPTION
The EUT for this certification is a low power transmitter, using digital modulation & operating in the
2400-2483.5 MHz band.

The transmitter has a maximum peak conducted output power as follows:

Frequency Rated Power Tested Average Tested Peak
Range Selection Power Power
(MHz) (dBm/W)* (dBm/W)*

2400-2483.5 0.33 / 0.001 7.13 / 0.005

*Calculated from measured E field intensity
EIRP (dBm) = E (dBuV/m) – 95.2

Page 4 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

5. CALIBRATION AND UNCERTAINTY

5.1. MEASURING INSTRUMENT CALIBRATION

The measuring equipment utilized to perform the tests documented in this report has been calibrated in
accordance with the manufacturer's recommendations, and is traceable to recognized national standards.

5.2. MEASUREMENT UNCERTAINTY

The estimated uncertainty of the test result is given as following. The method of uncertainty calculation is
provided in Advanced Compliance Lab. Doc. No. 0048-01-01.

Prob. Dist. Uncertainty(dB) Uncertainty(dB) Uncertainty(dB)
30-1000MHz 1-6.5GHz Conducted
Combined Std. Uncertainty uc norm. ±2.36 ±2.99 ±1.83

Page 6 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

6. SETUP OF EQUIPMENT UNDER TEST

SUPPORT EQUIPMENT

None Required.
TEST SETUP

Testing Frequency/Channel/Port Selection:

L(owest), M(iddle), H(ighest) Channels of 2.4 GHz Band.
Radiated method was chosen for this EUT which has integrated on-board antenna (using
EIRP=E-95.2 relation) instead of common approach (measured at EUT’s antenna connector on
PCB for conducted measurements).
Channel Selection: Low Channel=2425 MHz; Middle Channel=2450 MHz;
High Channel=2475 MHz
For intentional radiator measurements, only 2.4 GHz Band transmitter was activated. Based on
pre-scan results, the reported configuration of the EUT was chosen as the worst case for final data
collection.

Page 8 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

If a radiated test configuration is used, then the measured power or field strength levels shall be converted
to equivalent conducted power levels for comparison to the applicable output power limit. This may be
accomplished by first measuring the radiated field strength or power levels using a methodology for
maximum peak conducted power or maximum conducted (average) power as applicable and peak or
average power spectral density as applicable. The radiated field strength or power level can then be
converted to EIRP (see ANSI C63.10 for guidance).
Therefore, the applicable output power limit shall be calculated as follows:
EIRP (dBm) = E (dBuV/m) – 95.2
No non-compliance noted.

OUTPUT PEAK POWER

Summary of Peak Power Testing Data:

Channel Frequency Peak Power* Limit Margin
(MHz) (dBm) (dBm) (dB)
Low 2425 5.9 30 -24.10
Middle 2450 6.9 30 -23.10
High 2475 7.13 30 -22.87
* Calculated from measured E field intensity.
EIRP (dBm) = E (dBuV/m) – 95.2

Page 13 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

CALCULATIONS

Given
E = (30 * P * G) / d
and
S = E ^ 2 / 3770
where
E = Field Strength in Volts/meter
P = Power in Watts
G = Numeric antenna gain
d = Distance in meters
S = Power Density in milliwatts/square centimeter
Combining equations and rearranging the terms to express the distance as a function of the remaining
variables yields:
d = ((30 * P * G) / (3770 * S))

Changing to units of Power to mW and Distance to cm, using:
P(mW) = P (W) / 1000 and
d (cm) =100 * d (m)
yields
d = 100 * ((30 * (P / 1000) * G) / (3770 * S))
d = 0.282 * (P * G / S)
where
d = distance in cm
P = Power in mW
G = Numeric antenna gain
S = Power Density in mW/cm^2
Substituting the logarithmic form of power and gain using: P
(mW) = 10 ^ (P (dBm) / 10) and
G (numeric) = 10 ^ (G (dBi) / 10)
yields
d = 0.282 * 10 ^ ((P + G) / 20) / S Equation (1)
S = 0.0795 * 10 ^ ((P + G)/10)/ d^2 Equation (2)
where
d = MPE distance in cm
P = Power in dBm
G = Antenna Gain in dBi
S = Power Density Limit in mW/cm^2

Equation (1) and the measured peak power is used to calculate the MPE distance.
Equation (2) and the measured peak power is used to calculate the Power density.

Page 17 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

LIMITS

From §1.1310 Table 1 (B),
for Public S = 1.0 mW/cm2
for Professional, S = 5.0 mW/cm2

RESULTS

No non-compliance noted:

For this EUT, P= 7.13 dBm, Max G= 1 dBi, and d=20cm

Plug all three items into equation (2), yielding,

Power Density Output Antenna] Power
Limit Power Gain Density
(mV/cm2) (dBm) (dBi) (mW/ cm2)
1.0/5.0 7.13 1 0.0798

NOTE: For mobile or fixed location transmitters, the minimum separation distance is 20 cm, even if
calculations indicate that the MPE distance would be less.

Page 18 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

7.4 AVERAGE POWER

AVERAGE POWER LIMIT

None; for reporting purposes only.

TEST PROCEDURE per FCC KDB 558074D01v01r03

Measurement Procedure for Fundamental Emission Output Applicable to this EUT
Power
9.2.2 Maximum Conducted (average) Output Power Level *
Measurement Procedure Option 1 (Measurement using a
spectrum analyzer (SA))
9.2.3 Maximum Conducted (average) Output Power Level *
Measurement Procedure Option 2 (using a power meter(PM))
* Alternative method. EUT shall be configured to transmit continuously (min. 98% duty cycle at full power). The
spectrum analyzer shall be set for bin-to-bin spacing RBW/2.

The transmitter output is connected to a RF broadband power meter.
Note: No RF Output Connector on EUT. Radiated Emission Measurement performed.

RESULTS

No non-compliance noted:
Channel Frequency Average Power*
(MHz) (dBm)
Low 2425 -12.80
Middle 2450 -11.70
High 2475 -11.47

*Derived from average Field Strength, then converted to dBm.

Page 19 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

§15.209 (a) Except as provided elsewhere in this Subpart, the emissions from an intentional radiator shall not
exceed the field strength levels specified in the following table:

Frequency Field Strength Measurement Distance
(MHz) (microvolts /meter (meters)
30 – 88 100 3
88 – 216 150 3
216 – 960 200 3
Above 960 500 3
§15.209 (b) In the emission table above, the tighter limit applies at the band edges.

TEST PROCEDURE

The EUT is placed on a non-conducting table 80 cm above the ground plane. The antenna to EUT distance is
3 meters. The EUT is configured in accordance with ANSI C63.4. The EUT is set to transmit in a continuous
mode. Established procedures in C63.10 for performing radiated measurements shall be used. For cabinet
emission measurements, the EUT transmit antenna may be replaced with a termination matching the
nominal impedance of the antenna. For portable devices, the EUT was tested in three orthogonal planes.

For measurements below 1 GHz the resolution bandwidth is set to 100 kHz for peak detection
measurements or 120 kHz for quasi-peak detection measurements. Peak detection is used unless otherwise
noted as quasi-peak. For measurements above 1 GHz the resolution bandwidth is set to 1 MHz, and then the
video bandwidth is set to 1 MHz for peak measurements and 10 Hz for average measurements.

The radio spectrum was investigated from the lowest frequency generated within the device (without going
below 9 kHz) up to the 10th harmonic of the rated transmitted emission. The emissions are investigated with
the transmitter set to the lowest, middle, and highest channels.

The emissions are investigated with the transmitter set to the lowest, middle, and highest channels, if
applicable. The frequency range of interest is monitored at a fixed antenna height and EUT azimuth. The
EUT is rotated through 360 degrees to maximize emissions received. The antenna is scanned from 1 to 4
meters above the ground plane to further maximize the emission. Measurements are made with the antenna
polarized in both the vertical and the horizontal positions.

RESULTS

No non-compliance noted.

Page 25 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

EUT: SWF Basic Remote Control Report No: 0048-140708-01
Model: BR-01 FCC ID:DWNBR IC:12049A-BR

7.7.2. TRANSMITTER RADIATED EMISSIONS DATA
(HARMONICS & SPURIOUS falling in restricted bands listed in Sec.15.205 and non-restricted bands *)

EUT with Internal Ant.: Low Channel(2425MHz) Harmonics/Spurious
QP/Avg QP /Avg. QP
Freq. Worst Dist. D Corr Peak@3m PK Lim PK Mar
@3m Lim /Avg.Mar.
(MHz) H/V (m) (dB) (dBuV/m) (dBuV/m) (dBuV/m)
(dBuV/m) (dBuV/m) (dBuV/m)
4849 V 3 - 48.69 74 54 -25.31 -5.31
4849 H 3 - 48.39 74 54 -25.61 -5.61
Noise
7273.5 74 54
Level
Noise 74 54
7273.5
Level

EUT with Internal Ant: Middle Channel(2450MHz) Harmonics/Spurious
QP/Avg QP /Avg. QP
Freq. Worst Dist. D Corr Peak@3m PK Lim PK Mar
@3m Lim /Avg.Mar.
(MHz) H/V (m) (dB) (dBuV/m) (dBuV/m) (dBuV/m)
(dBuV/m) (dBuV/m) (dBuV/m)
4899 V 3 - 48.25 74 54 -25.75 -5.75
4899 H 3 - 48.37 74 54 -25.63 -5.63
Noise
7348.5 74 54
Level
Noise
7348.5 74 54
Level

EUT with Internal Ant: High Channel(2475MHz) Harmonics/Spurious
QP/Avg QP /Avg. QP
Freq. Worst Dist. D Corr Peak@3m PK Lim PK Mar
@3m Lim /Avg.Mar.
(MHz) H/V (m) (dB) (dBuV/m) (dBuV/m) (dBuV/m)
(dBuV/m) (dBuV/m) (dBuV/m)
4949 V 3 - 48.15 74 54 -25.85 -5.85
4949 H 3 - 48.45 74 54 -25.55 -5.55
Noise 74 54
7423.5
Level
Noise
7423.5 74 54
Level

* Data shown above represents the worst case in all EUT orientations. No other significant emissions were found in
the rest frequency range. For spurious in restricted band, the limit is per 15.209. For the others, by measuring the
field strength of fundamental (peak) with 100KHz RBW, the limit is 20dB below that level.

In this case, all non-fundamental emission points are below 15.209 limit, so there is NO additional concern for
non-restriction band limit compliance.

This scenario was also applied for banddege measurement (2390-2400MHz and 2483.5-2500MHz), please see the
following plots.

Page 26 of 33
Advanced Compliance Laboratory, Inc. 6 Randolph Way, Hillsborough, NJ 08844, tel:(908) 927 9288

Document Created: 2019-06-07 17:13:38
Document Modified: 2019-06-07 17:13:38

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