DDT-R19011102-1E3 IPA111 FCC Part15C wireless charger Report

FCC ID: 2AB3E-IPA111

Test Report

Download: PDF

FCCID_4253627

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

TABLE OF CONTENTS

Test report declares........................................................................................................3
1 Summary of test results ........................................................................................................... 5
2 General test information .......................................................................................................... 6
2.1. Description of EUT ................................................................................................................... 6
2.2. Accessories of EUT .................................................................................................................. 7
2.3. Assistant equipment used for test .......................................................................................... 7
2.4. Block diagram of EUT configuration for test ......................................................................... 7
2.5. Deviations of test standard ...................................................................................................... 7
2.6. Test environment conditions ................................................................................................... 7
2.7. Test laboratory .......................................................................................................................... 7
2.8. Measurement uncertainty ........................................................................................................ 8
3 Equipment used during test .................................................................................................... 9
4 20dB Bandwidth ...................................................................................................................... 10
4.1. Block diagram of test setup ................................................................................................... 10
4.2. Limits ........................................................................................................................................ 10
4.3. Test Procedure........................................................................................................................ 10
4.4. Test Result ............................................................................................................................... 10
4.5. Original test data ..................................................................................................................... 11
5 Radiated emission .................................................................................................................. 12
5.1. Block diagram of test setup ................................................................................................... 12
5.2. Limit .......................................................................................................................................... 13
5.3. Test Procedure........................................................................................................................ 13
5.4. Test result ................................................................................................................................ 14
6 Power Line Conducted Emission ......................................................................................... 17
6.1. Block diagram of test setup ................................................................................................... 17
6.2. Power Line Conducted Emission Limits .............................................................................. 17
6.3. Test Procedure........................................................................................................................ 17
6.4. Test Result ............................................................................................................................... 18
7 Antenna Requirements .......................................................................................................... 21

Page 2 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

Revision history

Rev. Revisions Issue Date Revised By

--- Initial issue Apr. 15, 2019

Page 4 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

1 Summary of test results
Description of Test Item Standard Results

20dB Bandwidth FCC Part 15: 15.215 PASS

Radiated Emission FCC Part 15: 15.209 PASS

Power Line Conducted Emissions FCC Part 15: 15.207 PASS

Antenna requirement FCC Part 15: 15.203 PASS

Page 5 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

2 General test information

2.1. Description of EUT

EUT* Name : High-Power All-Weather Speaker with Wireless Charging
Model Number : EXPLORER EXTREME
EUT function description : Please reference user manual of this device
Power supply : AC 100-240V, 50/60Hz or DC 12V from built-in battery
Wireless charging Operation
: 120kHz-205kHz
frequency
Antenna Type : Inductive loop coil antenna
Sample Type : Series production
Note: EUT is the ab. of equipment under test.

Channel information
Channel Frequency Channel Frequency Channel Frequency Channel Frequency
1 120kHz 23 142kHz 45 164kHz 67 186kHz
2 121kHz 24 143kHz 46 165kHz 68 187kHz
3 122kHz 25 144kHz 47 166kHz 69 188kHz
4 123kHz 26 145kHz 48 167kHz 70 189kHz
5 124kHz 27 146kHz 49 168kHz 71 190kHz
6 125kHz 28 147kHz 50 169kHz 72 191kHz
7 126kHz 29 148kHz 51 170kHz 73 192kHz
8 127kHz 30 149kHz 52 171kHz 74 193kHz
9 128kHz 31 150kHz 53 172kHz 75 194kHz
10 129kHz 32 151kHz 54 173kHz 76 195kHz
11 130kHz 33 152kHz 55 174kHz 77 196kHz
12 131kHz 34 153kHz 56 175kHz 78 197kHz
13 132kHz 35 154kHz 57 176kHz 79 198kHz
14 133kHz 36 155kHz 58 177kHz 80 199kHz
15 134kHz 37 156kHz 59 178kHz 81 200kHz
16 135kHz 38 157kHz 60 179kHz 82 201kHz
17 136kHz 39 158kHz 61 180kHz 83 202kHz
18 137kHz 40 159kHz 62 181kHz 84 203kHz
19 138kHz 41 160kHz 63 182kHz 85 204kHz
20 139kHz 42 161kHz 64 183kHz 86 205kHz
21 140kHz 43 162kHz 65 184kHz
22 141kHz 44 163kHz 66 185kHz

Note:
In section 15.31(m), regards to the operating frequency range less than 1 MHz, only one of
channel was selected to perform the test.
Frequency
Channel
(kHz)
Testing channel 132

Page 6 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

2.2. Accessories of EUT
Description of
Manufacturer Model number Serial No. Other
Accessories
SHENZHEN GREEN Input: 100-240 Vac,
Built-in Power GS10001800
POWER ELECTRONIC 50/60Hz; Output:
Board 550
TECHNOLOGY CO LTD 18.0Vdc, 5.5A
Alternative
Input: 100-240 Vac,
Built-in Power Shenzhen Sunlight
GO180055 50/60Hz; Output:
Board Electronic CO., LTD.
18.0Vdc, 5.5A

2.3. Assistant equipment used for test
Assistant Model number
Manufacturer EMC Compliance Other
equipment or Type
Simulation load / / / /

2.4. Block diagram of EUT configuration for test

Simulation load
EUT Adapter AC Mains

2.5. Deviations of test standard
No Deviation.

2.6. Test environment conditions
During the measurement the environmental conditions were within the listed ranges:
Temperature range: 21-25℃
Humidity range: 40-75%
Pressure range: 86-106kPa

2.7. Test laboratory
Dongguan Dongdian Testing Service Co., Ltd
Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City,
Guangdong Province, China, 523808
Tel: +86-0769-38826678, http://www.dgddt.com, Email: ddt@dgddt.com
CNAS Accreditation No. L6451; A2LA Accreditation No. 3870.01
FCC Designation Number: CN1182; FCC Test Firm Registration Number: 540522
Industry Canada site registration number: 10288A-1

Page 7 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

2.8. Measurement uncertainty

Test Item Uncertainty

3.32dB (150kHz-30MHz)
Uncertainty for Conduction emission test
3.72dB (9kHz-150kHz)

4.70 dB (Antenna Polarize: V)
Uncertainty for Radiation Emission test
(30MHz-1GHz)
4.84 dB (Antenna Polarize: H)

4.10dB(1-6GHz)
Uncertainty for Radiation Emission test
(1GHz to 18GHz)
4.40dB (6GHz-18GHz)

Bandwidth 1.1%
Note: This uncertainty represents an expanded uncertainty expressed at approximately the
95% confidence level using a coverage factor of k=2.

Page 8 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

4.5. Original test data

Graphs
* RBW 30 Hz Marker 3 [T1 ]
* VBW 100 Hz -82.83 dBm
Ref -40 dBm * Att 0 dB SWT 1.15 s 132.380003846 kHz

-40 Offset 11 dB OBW129.750000000 Hz
Marker 1 [T1 ]
-62.08 dBm A
-50
132.301900000 kHz
1 PK Marker 2 [T1 ]
VIEW 1
-60 -83.08 dBm
LVL
132.237375641 kHz
Temp 1 [T1 OBW]
-70 -76.92 dBm
T1 T2 132.244150000 kHz
Temp 2 [T1 OBW]
-80 2 3
D1 -82.08 dBm -77.64 dBm
132.373900000 kHz

-90

3DB
-100

-110

-120

-130

-140

Center 132.3334 kHz 100 Hz/ Span 1 kHz

Date: 3.APR.2019 11:21:22

Page 11 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

5.2. Limit
FREQUENCY DISTANCE FIELD STRENGTHS LIMIT
MHz Meters V/m dB(V)/m
0.009 ~ 0.490 300 2400/F(kHz) 67.6-20log(F)
0.490 ~ 1.705 30 24000/F(kHz) 87.6-20log(F)
1.705 ~ 30.0 30 30 29.54
30 ~ 88 3 100 40.0
88 ~ 216 3 150 43.5
216 ~ 960 3 200 46.0
960 ~ 1000 3 500 54.0

Note: (1)The emission limits shown in the above table are based on measurements employing a
CISPR QP detector except for the frequency bands 9-90kHz, 110-490kHz and above
1000MHz.Radiated emissions limits in these three bands are based on measurements employing
an average detector.
(2) At frequencies below 30MHz, measurement may be performed at a distance closer then that
specified, and the limit at closer measurement distance can be extrapolated by below formula:
Limit3m(dBuV/m)= Limit300m(dBuV/m) + 40Log(300m/3m) = Limit300m(dBuV/m) + 80
Limit3m(dBuV/m)= Limit30m(dBuV/m) + 40Log(30m/3m) = Limit30m(dBuV/m) + 40

5.3. Test Procedure
(1) EUT was placed on a non-metallic table, 150 cm above the ground plane inside a
semi-anechoic chamber.
(2) Test antenna was located 3m from the EUT on an adjustable mast, and the antenna used as
below table.
Test frequency range Test antenna used Test antenna distance
9kHz-30MHz Active Loop antenna 3m
30MHz-1GHz Trilog Broadband Antenna 3m

According ANSI C63.10:2013 clause 6.4.4.2 and 6,5.3, for measurements below 30 MHz, the
loop antenna was positioned with its plane vertical from the EUT and rotated about its vertical
axis for maximum response at each azimuth position around the EUT. And the loop antenna also
be positioned with its plane horizontal at the specified distance from the EUT. The center of the
loop is 1 m above the ground. for measurement above 30MHz, the Trilog Broadband Antenna or
Horn Antenna was located 3m from EUT, Measurements were made with the antenna positioned
in both the horizontal and vertical planes of Polarization, and the measurement antenna was
varied from 1 m to 4 m. in height above the reference ground plane to obtain the maximum signal
strength.
(3) Below pre-scan procedure was first performed in order to find prominent frequency spectrum
radiated emissions from 9kHz to 1GHz:
(a) Scanning the peak frequency spectrum with the antenna specified in step (3), and the EUT
was rotated 360 degree, the antenna height was varied from 1m to 4m(Except loop antenna, it’s

Page 13 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

fixed 1m above ground.)
(b) Change work frequency or channel of device if practicable.
(c) Change modulation type of device if practicable.
(d) Rotated EUT though three orthogonal axes to determine the attitude of EUT arrangement
produces highest emissions. Spectrum frequency from 9kHz to 1GHz (tenth harmonic of
fundamental frequency) was investigated.
(4) For final emissions measurements at each frequency of interest, the EUT was rotated and the
antenna height was varied between 1m and 4m in order to maximize the emission.
Measurements in both horizontal and vertical polarities were made and the data was recorded. In
order to find the maximum emission, the relative positions of equipments and all of the interface
cables were changed according to ANSI C63.10:2013 on Radiated Emission test.
(5) The emissions from 9kHz to 1GHz were measured based on CISPR QP detector except for
the frequency bands 9-90kHz, 110-490kHz, for emissions from 9kHz-90kHz,110kHz-490kHz and
above 1GHz were measured based on average detector, for emissions above 1GHz, peak
emissions also be measured and need comply with Peak limit.
(6) The emissions from 9kHz to 1GHz, QP or average values were measured with EMI receiver
with below RBW.
Frequency band RBW
9kHz-150kHz 200Hz
150kHz-30MHz 9kHz
30MHz-1GHz 120kHz

5.4. Test result
PASS. (See below detailed test result)

Below 30MHz:
Frequency Result@3m Limit @3m Detector Conclusion
(MHz) (dBuV/m) (dBuV/m)
0.05 56.75 133.62 Peak PASS
0.05 49.27 113.62 Average PASS
0.132 85.54 125.32 Peak PASS
0.132 78.46 105.32 Average PASS
0.38 62.87 116.00 Peak PASS
0.38 54.75 96.00 Average PASS
0.64 54.11 71.48 QP PASS
1.16 45.42 66.31 QP PASS
5.92 37.14 69.54 QP PASS

Page 14 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

The EUT configuration and worse cable configuration of the above highest emission levels were
recorded for reference of the final test.

EUT and support equipment were set up on the test bench as per the configuration with highest
emission level in the preliminary test.

A scan was taken on both power lines, Neutral and Line, recording at least the six highest
emissions.

Emission frequency and amplitude were recorded into a computer in which correction factors
were used to calculate the emission level and compare reading to the applicable limit.

The test data of the worst-case condition(s) was recorded.

The bandwidth of test receiver is set at 9 kHz.

6.4. Test Result
PASS. (See below detailed test result)

Note1: All emissions not reported below are too low against the prescribed limits.
Note2: “-----” means Peak detection; “-----” means Average detection.
Note3: Pre-test AC conducted emission at both voltage AC 120V/60Hz and AC 240V/60Hz,
recorded worse case (AC 120V/60Hz).

Page 18 of 21

Dongguan Dongdian Testing Service Co., Ltd Report No.: DDT-R19011102-1E3

7 Antenna Requirements
For intentional device, according to FCC 47 CFR Section 15.203, An intentional radiator shall be
designed to ensure that no antenna other than that furnished by the responsible party shall be
used with the device. The use of a permanently attached antenna or of an antenna that uses a
unique coupling to the intentional radiator shall be considered sufficient to comply with the
provisions of this section. The manufacturer may design the unit so that a broken antenna can be
replaced by the user, but the use of a standard antenna jack or electrical connector is prohibited.

END OF REPORT

Page 21 of 21

Document Created: 2019-04-24 16:04:56
Document Modified: 2019-04-24 16:04:56

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC