Test Report

FCC ID: PQN44615RX2G4

Test Report

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FCCID_3381915

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SUMMARY OF TEST RESULT

TEST SPECIFICATION REFERENCE RESULTS
Radiated Emission
15.249, 15.209 Pass
Radiated Emission on the Bandedge
Radiated Emission in Restricted Bands 15.205 Pass

The equipment under test is found to be complying with the following standards:
FCC Part 15, October 1, 2015 Edition

Note: 1. The EUT uses a permanently attached antenna which, in accordance to section 15.203, is
considered sufficient to comply with the pervisions of this section.
2. Pursuant to FCC part 15 Section 15.215(c), the 20 dB bandwidth of the emission was contained
within the frequency band designated (mentioned as above) which the EUT operated. The
effects, if any, from frequency sweeping, frequency hopping, other modulation techniques and
frequency stability over excepted variations in temperature and supply voltage were considered.

Report No.: 17020969HKG-003 ii
FCC ID: PQN44615RX2G4

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Table of Contents

1.0 General Description .............................................................................................. 1
1.1 Product Description ............................................................................................. 1
1.2 Related Submittal(s) Grants................................................................................. 1
1.3 Test Methodology ................................................................................................ 1
1.4 Test Facility ......................................................................................................... 1

2.0 System Test Configuration................................................................................... 2
2.1 Justification .......................................................................................................... 2
2.2 EUT Exercising Software ..................................................................................... 2
2.3 Special Accessories ............................................................................................ 2
2.4 Measurement Uncertainty.................................................................................... 2
2.5 Support Equipment List and Description .............................................................. 2

3.0 Emission Results .................................................................................................. 3
3.1 Field Strength Calculation .................................................................................... 3
3.2 Radiated Emission Configuration Photograph ..................................................... 4
3.3 Radiated Emission Data ...................................................................................... 4

4.0 Equipment Photographs....................................................................................... 9

5.0 Product Labelling .................................................................................................. 9

6.0 Technical Specifications ...................................................................................... 9

7.0 Instruction Manual ................................................................................................ 9

8.0 Miscellaneous Information ................................................................................. 10
8.1 Radiated Emission on the Bandedge................................................................. 10
8.2 Discussion of Pulse Desensitization .................................................................. 11
8.3 Calculation of Average Factor............................................................................ 11
8.4 Emissions Test Procedures ............................................................................... 13

9.0 Equipment List .................................................................................................... 16

Report No.: 17020969HKG-003 iii
FCC ID: PQN44615RX2G4

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1.0 General Description

1.1 Product Description

The Equipment Under Test (EUT) is a portable 2.4GHz Transceiver (Drone Unit)
for a RC drone operating at the frequency range of 2408-2472MHz with 1 MHz
channel spacing.
The EUT is powered by 3.7V rechargeable battery. After switching on the EUT
and being paired with drone, the drone can be controlled to fly
forward/backward, upward/downward and left/ right by the controller.

Antenna Type: Internal, Integral

For electronic filing, the brief circuit description is saved with filename: descri.pdf.

1.2 Related Submittal(s) Grants

The Certification procedure of transceiver for this transceiver (with FCC ID:
PQN44615TX2G4) is being processed as the same time of this application.

1.3 Test Methodology

Radiated emission measurements was performed according to the
procedures in ANSI C63.10 (2013). All radiated measurements were
performed in an 3m Chamber. Preliminary scans were performed in the
3m Chamber only to determine worst case modes. All radiated tests were
performed at an antenna to EUT distance of 3 meters, unless stated
otherwise in the “Justification Section” of this Application.

1.4 Test Facility

The 3m Chamber facility used to collect the radiated data is located at
Workshop No. 3, G/F., World-Wide Industrial Centre, 43-47 Shan Mei Street, Fo
Tan, Sha Tin, N.T., Hong Kong. This test facility and site measurement data
have been placed on file with the FCC.

Report No.: 17020969HKG-003 1 of 16
FCC ID: PQN44615RX2G4

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2.0 System Test Configuration

2.1 Justification

The system was configured for testing in a typical fashion (as a customer would
normally use it), and in the confines as outlined in ANSI C63.10 (2013).

The device was powered by new 3.7v rechargeable battery.

For maximizing emissions, the EUT was rotated through 360°, the antenna
height was varied from 1 meter to 4 meters above the ground plane, and the
antenna polarization was changed. This step by step procedure for maximizing
emissions led to the data reported in Exhibit 3.0.

The unit was operated standalone and placed in the center of the turntable.

The equipment under test (EUT) was configured for testing in a typical fashion
(as a customer would normally use it). The EUT was mounted to a plastic stand
if necessary and placed on the wooden turntable, which enabled the engineer to
maximize emissions through its placement in the three orthogonal axes.

2.2 EUT Exercising Software

There was no special software to exercise the device. Once the unit is
powered up, it transmits the RF signal continuously.

2.3 Special Accessories

There are no special accessories necessary for compliance of this product.

2.4 Measurement Uncertainty

When determining of the test conclusion, the Measurement Uncertainty of test
has been considered.

2.5 Support Equipment List and Description

N/A.

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FCC ID: PQN44615RX2G4

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3.0 Emission Results

Data is included of the worst case configuration (the configuration which resulted
in the highest emission levels). A sample calculation, configuration photographs
and data tables of the emissions are included.

3.1 Field Strength Calculation

The field strength is calculated by adding the Antenna Factor and Cable Factor,
and subtracting the Amplifier Gain (if any), Average Factor (optional) from the
measured reading. The basic equation with a sample calculation is as follows:
FS = RA + AF + CF - AG - AV
where FS = Field Strength in dBµV/m
RA = Receiver Amplitude (including preamplifier) in dBµV
CF = Cable Attenuation Factor in dB
AF = Antenna Factor in dB
AG = Amplifier Gain in dB
AV = Average Factor in dB

In the following table(s), the reading shown on the data table reflects the preamplifier
gain. An example for the calculations in the following table is as follows:
FS = RR + LF
where FS = Field Strength in dBµV/m
RR = RA - AG - AV in dBµV
LF = CF + AF in dB

Assume a receiver reading of 52.0 dBµV is obtained. The antenna factor of
7.4 dB and cable factor of 1.6 dB are added. The amplifier gain of 29 dB and
average factor of 5 dB are subtracted, giving a field strength of 32 dBµV/m.
This value in dBµV/m was converted to its corresponding level in µV/m.

RA = 52.0 dBµV/m
AF = 7.4 dB RR = 18.0 dBµV
CF = 1.6 dB LF = 9.0 dB
AG = 29.0 dB
AV = 5.0 dB
FS = RR + LF
FS = 18 + 9 = 27 dBµV/m

Level in µV/m = Common Antilogarithm [(27 dBµV/m)/20] = 22.4 µV/m

Report No.: 17020969HKG-003 3 of 16
FCC ID: PQN44615RX2G4

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3.2 Radiated Emission Configuration Photograph

The worst case in radiated emission was found at 4816.000 MHz

For electronic filing, the worst case radiated emission configuration photographs
are saved with filename: radiated photos.pdf.

3.3 Radiated Emission Data

The data on the following page lists the significant emission frequencies, the
limit and the margin of compliance. Numbers with a minus sign are below the
limit.

Judgment: Passed by 12.9 dB

Report No.: 17020969HKG-003 4 of 16
FCC ID: PQN44615RX2G4

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Applicant: Spin Master Toys Far East Ltd. Date of Test: March 23, 2017
Model: 44615RX
Worst-Case Operating Mode: Transmitting
Table 1
Radiated Emissions
Pursuant to FCC Part 15 Section 15.249 Requirement
Lowest Channel
Pre-Amp Antenna Net at Average Calculated Average Limit
Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB)
V 2400.000 49.1 33 29.4 45.5 29 16.5 54.0 -37.5
V 2408.000 86.3 33 29.4 82.7 29 53.7 94.0 -40.3
V 4816.000 59.2 33 34.9 61.1 29 32.1 54.0 -21.9
V 7224.000 47.7 33 37.9 52.6 29 23.6 54.0 -30.4
V 9632.000 38.1 33 40.4 45.5 29 16.5 54.0 -37.5
V 12040.000 37.9 33 40.5 45.4 29 16.4 54.0 -37.6
V 14448.000 37.3 33 40.0 44.3 29 15.3 54.0 -38.7

Pre-Amp Antenna Net at Peak Limit
Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB)
V 2400.000 49.1 33 29.4 45.5 74.0 -28.5
V 2408.000 86.3 33 29.4 82.7 114.0 -31.3
V 4816.000 59.2 33 34.9 61.1 74.0 -12.9
V 7224.000 47.7 33 37.9 52.6 74.0 -21.4
V 9632.000 38.1 33 40.4 45.5 74.0 -28.5
V 12040.000 37.9 33 40.5 45.4 74.0 -28.6
V 14448.000 37.3 33 40.0 44.3 74.0 -29.7

NOTES: 1. Peak Detector Data unless otherwise stated.

2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.

3. Negative sign in the column shows value below limit.

4. Horn antenna is used for the emission over 1000MHz.

5. Emission (the row indicated by bold italic) within the restricted band meets
the requirement of FCC Part 15 Section 15.205.

6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%.

Report No.: 17020969HKG-003 5 of 16
FCC ID: PQN44615RX2G4

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Applicant: Spin Master Toys Far East Ltd. Date of Test: March 23, 2017
Model: 44615RX
Worst-Case Operating Mode: Transmitting
Table 2
Radiated Emissions
Pursuant to FCC Part 15 Section 15.249 Requirement
Middle Channel
Pre-Amp Antenna Net at Average Calculated Average Limit
Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB)
V 2440.000 85.6 33 29.4 82.0 29 53.0 94.0 -41.0
V 4880.000 58.8 33 34.9 60.7 29 31.7 54.0 -22.3
V 7320.000 47.7 33 37.9 52.6 29 23.6 54.0 -30.4
V 9760.000 38.1 33 40.4 45.5 29 16.5 54.0 -37.5
V 12200.000 37.9 33 40.5 45.4 29 16.4 54.0 -37.6
V 14640.000 38.9 33 38.4 44.3 29 15.3 54.0 -38.7

Pre-Amp Antenna Net at Peak Limit
Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB)
V 2440.000 85.6 33 29.4 82.0 114.0 -32.0
V 4880.000 58.8 33 34.9 60.7 74.0 -13.3
V 7320.000 47.7 33 37.9 52.6 74.0 -21.4
V 9760.000 38.1 33 40.4 45.5 74.0 -28.5
V 12200.000 37.9 33 40.5 45.4 74.0 -28.6
V 14640.000 38.9 33 38.4 44.3 74.0 -29.7

NOTES: 1. Peak Detector Data unless otherwise stated.

2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.

3. Negative sign in the column shows value below limit.

4. Horn antenna is used for the emission over 1000MHz.

5. Emission (the row indicated by bold italic) within the restricted band meets
the requirement of FCC Part 15 Section 15.205.

6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%.

Report No.: 17020969HKG-003 6 of 16
FCC ID: PQN44615RX2G4

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Applicant: Spin Master Toys Far East Ltd. Date of Test: March 23, 2017
Model: 44615RX
Worst-Case Operating Mode: Transmitting
Table 3
Radiated Emissions
Pursuant to FCC Part 15 Section 15.249 Requirement
Highest Channel
Pre-Amp Antenna Net at Average Calculated Average Limit
Polari- Frequency Reading Gain Factor 3m - Peak Factor at 3m at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dB) (dBμV/m) (dBμV/m) (dB)
V 2472.000 84.7 33 29.4 81.1 29 52.1 94.0 -41.9
V 2483.500 49.5 33 29.4 45.9 29 16.9 54.0 -37.1
V 4944.000 54.9 33 34.9 56.8 29 27.8 54.0 -26.2
V 7416.000 47.7 33 37.9 52.6 29 23.6 54.0 -30.4
V 9888.000 36.0 33 40.4 43.4 29 14.4 54.0 -39.6
V 12360.000 39.0 33 40.5 46.5 29 17.5 54.0 -36.5
V 14832.000 10.9 33 38.4 45.3 29 16.3 54.0 -37.7

Pre-Amp Antenna Net at Peak Limit
Polari- Frequency Reading Gain Factor 3m - Peak at 3m Margin
zation (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB)
V 2472.000 84.7 33 29.4 81.1 114.0 -32.9
V 2483.500 49.5 33 29.4 45.9 74.0 -28.1
V 4944.000 54.9 33 34.9 56.8 74.0 -17.2
V 7416.000 47.7 33 37.9 52.6 74.0 -21.4
V 9888.000 36.0 33 40.4 43.4 74.0 -30.6
V 12360.000 39.0 33 40.5 46.5 74.0 -27.5
V 14832.000 39.9 33 38.4 45.3 74.0 -28.7

NOTES: 1. Peak Detector Data unless otherwise stated.

2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.

3. Negative sign in the column shows value below limit.

4. Horn antenna is used for the emission over 1000MHz.

5. Emission (the row indicated by bold italic) within the restricted band meets
the requirement of FCC Part 15 Section 15.205.

6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%.

Report No.: 17020969HKG-003 7 of 16
FCC ID: PQN44615RX2G4

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Applicant: Spin Master Toys Far East Ltd. Date of Test: March 23, 2017
Model: 44615RX
Worst-Case Operating Mode: Transmitting
Table 4
Radiated Emissions
Pursuant to FCC Part 15 Section 15.209 Requirement

Pre- Antenna Net Limit
Frequency Reading amp Factor at 3m at 3m Margin
Polarization (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB)
V 45.345 27.4 16 10.0 21.4 40.0 -18.6
V 134.675 25.5 16 14.0 23.5 43.5 -20.0
V 192.734 24.6 16 16.0 24.6 43.5 -18.9
V 235.544 22.7 16 19.0 25.7 46.0 -20.3
H 345.345 18.8 16 24.0 26.8 46.0 -19.2
H 565.545 13.6 16 28.0 25.6 46.0 -20.4

NOTES: 1. Peak Detector Data unless otherwise stated.

2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.

3. Negative sign in the column shows value below limit.

4. Horn antenna is used for the emission over 1000MHz.

5. Emission (the row indicated by bold italic) within the restricted band meets
the requirement of FCC Part 15 Section 15.205.

6. Measurement Uncertainty is ±5.3dB at a level of confidence of 95%.

Report No.: 17020969HKG-003 8 of 16
FCC ID: PQN44615RX2G4

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4.0 Equipment Photographs

For electronic filing, the photographs are saved with filename: external photos.pdf
and internal photos.pdf.

5.0 Product Labelling

For electronics filing, the FCC ID label artwork and the label location are saved
with filename: label.pdf.

6.0 Technical Specifications

For electronic filing, the block diagram and schematic of the tested EUT are
saved with filename: block.pdf and circuit.pdf respectively.

7.0 Instruction Manual

For electronic filing, a preliminary copy of the Instruction Manual is saved with
filename: manual.pdf.

This manual will be provided to the end-user with each unit sold/leased in the
United States.

Report No.: 17020969HKG-003 9 of 16
FCC ID: PQN44615RX2G4

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8.0 Miscellaneous Information

The miscellaneous information includes details of the test procedure and
measured bandwidth / calculation of factor such as pulse desensitization and
averaging factor (calculation and timing diagram).

8.1 Radiated Emission on the Bandedge

The test data of bandedge emissions were shown on the above radiated
emissions table 1 & table 3 respectively.

Emissions radiated outside of the specified frequency bands, except harmonics,
are attenuated by 50dB below the level of the fundamental or to the general
radiated emissions limits in Section 15.209, whichever is the lesser attenuation,
which meet the requirement of part 15.249(d).

The resultant field strength meets the general radiated emission limit in
Section 15.209, which does not exceed 74 dBµV/m (Peak Limit) and 54 dBµV/m
(Average Limit).

Report No.: 17020969HKG-003 10 of 16
FCC ID: PQN44615RX2G4

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8.2 Discussion of Pulse Desensitization

Pulse desensitivity is not applicable for this device. The effective period (Teff)
is approximately 710 µs for a digital “1” bit which illustrated on technical
specification, with a resolution bandwidth (3dB) of 1MHz, so the pulse
desensitivity factor is 0dB.

8.3 Calculation of Average Factor

The duty cycle is simply the on-time divided by the period:

The duration of one cycle = 100ms

Effective period of the cycle = 5*0.71 = 3.55ms

DC = 3.55/100 = 0.0355ms

Therefore, the averaging factor is found by 20log 0.0355 = -29.0dB.

Report No.: 17020969HKG-003 11 of 16
FCC ID: PQN44615RX2G4

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8.4 Emissions Test Procedures (cont’d)

The EUT is warmed up for 15 minutes prior to the test.

AC power to the unit is varied from 85% to 115% nominal and variation in the
fundamental emission field strength is recorded. If battery powered, a new,
fully charged battery is used.

Conducted measurements were made as described in ANSI C63.10 (2013).

The IF bandwidth used for measurement of radiated signal strength was 100 kHz
or greater when frequency is below 1000 MHz. Where pulsed transmissions of
short enough pulse duration warrant, a greater bandwidth is selected according
to the recommendations of Hewlett Packard Application Note 150-2. A discussion
of whether pulse desensitivity is applicable to this unit is included in this report
(See Exhibit 8.1). Above 1000 MHz, a resolution bandwidth of 3 MHz is used.

Transmitter measurements are normally conducted at a measurement distance
of three meters. However, to assure low enough noise floor in the forbidden
bands and above 1 GHz, signals are acquired at a distance of one meter or less. All
measurements are extrapolated to three meters using inverse scaling, unless
otherwise reported. Measurements taken at a closer distance are so marked.

Report No.: 17020969HKG-003 14 of 16
FCC ID: PQN44615RX2G4

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8.4.1 Radiated Emission Test Setup

The figure below shows the test setup, which is utilized to make these
measurements.

Antenna
1.0~4.0m Tower

3m Receiver
Antenna
E
U
T

0.8m

Ground Plane
3m Chamber □

RF Test
Receiver

Test setup of radiated emissions up to 1GHz

Antenna
1.0~4.0m Tower

3m Receiver
E
Antenna
U
T

1.5m

Ground Plane
□

RF Test Spectrum
Analyzer

Test setup of radiated emissions above 1GHz

Report No.: 17020969HKG-003 15 of 16
FCC ID: PQN44615RX2G4

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9.0 Equipment List

1) Radiated Emissions Test

Equipment EMI Test Receiver Spectrum Analyzer
Registration No. EW-2666 EW-2188
Manufacturer R&S AGILENTTECH
Model No. ESCI7 E4407B
Calibration Date Jun. 17, 2016 Apr. 25, 2016
Calibration Due Date Jun. 17, 2017 Apr. 25, 2017

Equipment Log Periodic Antenna Biconical Antenna Double Ridged
Guide Antenna
Registration No. EW-0447 EW-0571 EW-1133
Manufacturer EMCO EMCO EMCO
Model No. 3146 3104C 3115
Calibration Date May. 18, 2016 May. 18, 2016 Nov. 05, 2015
Calibration Due Date Nov. 18, 2017 Nov. 18, 2017 May 05, 2017

END OF TEST REPORT

Report No.: 17020969HKG-003 16 of 16
FCC ID: PQN44615RX2G4

Document Created: 2017-05-02 12:21:42
Document Modified: 2017-05-02 12:21:42

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