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Shenzhen Caibo Technology Co., Ltd. C5 Wireless charger 2AXTH-C5 2AXTHC5 c5

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FCC Test Report
Report No: FCS202210160W01 Issued for

Applicant: Address: Product Name:

Shenzhen Caibo Technology Co., Ltd.
F4, Building 30, Fifth Industrial Zone,Huaide Cuigang Industrial Park, Fu Yong,Bao'an District, Shenzhen China
Wireless charger

Brand Name:

KOAKUMA

Model Name:

Series Model:

C10

FCC ID:

2AXTH-C5

Issued By: Flux Compliance Service Laboratory Add: Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech
Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com

Page 2 of 23

Report No.:FCS202210160W01

TEST RESULT CERTIFICATION Applicant's Name...................... : Shenzhen Caibo Technology Co., Ltd.

Address...................................... :

F4, Building 30, Fifth Industrial Zone,Huaide Cuigang Industrial Park, Fu Yong,Bao'an District, Shenzhen China

Manufacture's Name................ : Shenzhen Caibo Technology Co., Ltd.

Address...................................... :

F4, Building 30, Fifth Industrial Zone,Huaide Cuigang Industrial Park, Fu Yong,Bao'an District, Shenzhen China

Product Description Product Name........................... : Brand Name .............................: Model Name.............................. : Series Model..............................:

Wireless charger KOAKUMA C5 C10

Test Standards..........................: FCC Rules and Regulations Part 15 Subpart C, Section 209

Test Procedure..........................: ANSI C63.10:2013

This device described above has been tested FCS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of FCS, this document may be altered or revised by FCS, personal only, and shall be noted in the revision of the document..
Date of Test..................................:
Date (s) of performance of tests. : Oct 27. 2022 ~ Nov 8. 2022
Date of Issue.................................: Nov 8. 2022
Test Result.................................... : Pass

Tested by

Reviewed by

Approved by

(Scott Shen) (Duke Qian) (Jack Wang)

Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com

Page 3 of 23

Report No.:FCS202210160W01

Table of Contents

Page

1. SUMMARY OF TEST RESULTS ..............................................................................................5 1.1 TEST FACTORY ................................................................................................................6 1.2 MEASUREMENT UNCERTAINTY .................................................................................... 6
2. GENERAL INFORMATION ...................................................................................................... 7 2.1 GENERAL DESCRIPTION OF THE EUT ......................................................................... 7 2.2 DESCRIPTION OF THE TEST MODES ........................................................................... 8 2.3 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS .................. 9 2.4 EQUIPMENTS LIST .........................................................................................................10
3 CONDUCTED EMISSION MEASUREMENT .......................................................................... 11 3.1 LIMIT ................................................................................................................................ 11 3.2 TEST PROCEDURE ........................................................................................................ 11 3.3 TEST SETUP ................................................................................................................... 12 3.4 TEST RESULTS .............................................................................................................. 13
4. RADIATED EMISSION MEASUREMENT ..............................................................................15 4.1 LIMIT ................................................................................................................................ 15 4.2 TEST PROCEDURE ........................................................................................................ 16 4.3 TEST SETUP ................................................................................................................... 17 4.4 TEST RESULTS .............................................................................................................. 18 (30MHZ-1000MHZ) ................................................................................................................ 19
5. 20 DB BANDWIDTH TEST .....................................................................................................21 5.1 LIMIT ................................................................................................................................ 21 5.2 TEST PROCEDURE ........................................................................................................ 21 5.3 TEST SETUP ................................................................................................................... 21 5.4 TEST RESULTS .............................................................................................................. 22
6. ANTENNA REQUIREMENT ................................................................................................... 23 6.1 STANDARD REQUIREMENT ......................................................................................... 23 6.2 EUT ANTENNA ................................................................................................................23

Rev. 00

Page 4 of 23

Report No.:FCS202210160W01

Revision History

Issue Date Nov 8. 2022

Effect Page N/A

Contents N/A

Page 5 of 23

Report No.:FCS202210160W01

1. SUMMARY OF TEST RESULTS

FCC Rules and Regulations Part 15 Subpart C, Section 209

Standard Section
15.207

Test Item Conducted Emission

Judgment PASS

15.209(a) (f)

Radiated Spurious Emission

PASS

15.215(c)

20dB Bandwidth

PASS

15.203

Antenna Requirement

PASS

Remark -----

NOTE: (1)" N/A" denotes test is not applicable in this Test Report (2) All tests are according to ANSI C63.10-2013

Page 6 of 23

Report No.:FCS202210160W01

1.1 TEST FACTORY

Company Name: Flux Compliance Service Laboratory

Address:

Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan

Telephone:

+86-769-27280901

Fax:

+86-769-27280901

FCC Test Firm Registration Number: 514908 Designation number: CN0127 A2LA accreditation number5545.01

1.2 MEASUREMENT UNCERTAINTY
The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %.

No.

Item

Uncertainty

RF output power, conducted

±0.71dB

Unwanted Emissions, conducted

±2.98 dB

Conducted Emission (9KHz-150KHz)

±4.13 dB

Conducted Emission (150KHz-30MHz)

±4.74 dB

All emissions,radiated (9KHz -30MHz)

±3.1 dB

All emissions,radiated(<1G) 30MHz-1000MHz

±3.2 dB

All emissions,radiated (1GHz -18GHz)

±3.66 dB

All emissions,radiated (18GHz -40GHz)

±4.31 dB

Page 7 of 23

Report No.:FCS202210160W01

2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT

Product Name

Wireless charger

Trade Name

KOAKUMA

Model Name

Series Model Model Difference Channel List

C10
The above product with same circuit, PCB layout, electrical parts, materials and wiring structures, Appearance shape, the materials of decorative accessories is same, only different color.
Please refer to the Note 2.

Operation frequency

115-205KHz

Modulation Type

MSK

Antenna Type Power Supply Rated voltage

Inductive Loop Antenna with 1.0dBi Input5V/2A, 9V/2A Output5W, 7.5W, 10W, 15W
DC 9V

Test voltage

DC 9V

Hardware version number V1.0

Software version number V1.0

Connecting I/O Port(s)

Please refer to the User's Manual

Note: 1. For a more detailed features description, please refer to the manufacturer's specifications or the User's Manual.

2. Operation frequency:0.115KHz~0.205KHz

3. Table for Filed Antenna

Ant.

Brand

Model Name

Antenna Type Connector Gain (dBi)

N/A

FGGH

Inductive Loop Antenna

N/A

1.0dBi

NOTE Antenna

Page 8 of 23

Report No.:FCS202210160W01

2.2 DESCRIPTION OF THE TEST MODES
To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration mode(s) mentioned above was evaluated respectively.

Test software: KCC Use manual test control EUT to operate in continuous TX mode and select the test channel

Tested mode, Description

Mode

Description

Mode 1

Mobile phone wireless charging (5W)

Mode 2

Mobile phone wireless charging (7.5W)

Mode 3

Mobile phone wireless charging (10W)

Mode 4

Mobile phone wireless charging (15W)

Page 9 of 23

Report No.:FCS202210160W01

2.3 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS
The EUT has been tested as an independent unit together with other necessary accessories or support units. The following support units or accessories were used to form a representative test configuration during the tests.
Necessary accessories

Item Equipment

Adapter

Phone

Mfr/Brand XIAOMI Apple

Model/Type No.
MDY-11-EB
iPone 12

Serial No. N/A N/A

Note
This is for testing only in
report. This is for testing only in
report.

Item Equipment

N/A

Support units

Mfr/Brand

Model/Type No.

N/A

Serial No.
N/A

Note N/A

Note:
(1) The support equipment was authorized by Declaration of Confirmation. (2) For detachable type I/O cable should be specified the length in cm inLengthcolumn. (3) "YES" is means "shielded" "with core"; "NO" is means "unshielded" "without core".

Page 10 of 23

Report No.:FCS202210160W01

2.4 EQUIPMENTS LIST

Radiation Test equipment
Kind of Equipment Manufacturer

Type No.

Company No. Last calibration Calibrated until

EMI Test Receiver

R&S

ESRP 3

FCS-E001 2022.01.28 2023.01.27

Signal Analyzer

R&S

FSV40-N

FCS-E012 2022.01.28 2023.01.27

Active loop Antenna

ZHINAN

ZN30900C

FCS-E013 2022.01.28 2023.01.27

Bilog Antenna SCHWARZBECK VULB 9168

FCS-E002 2022.01.28 2023.01.27

Horn Antenna

SCHWARZBECK BBHA 9120D

SHF-EHF Horn Antenna (18G-40GHz)
Pre-Amplifier(0.1M-3G Hz)
Pre-Amplifier (1G-18GHz)
Pre-Amplifier (18G-40GHz)
Temperature & Humidity

A-INFO EMCI N/A TERA-MW HTC-1

LB-180400-KF EM330N
TSAMP-0518SE TRLA-0400 victor

FCS-E003 FCS-E018 FCS-E004 FCS-E014 FCS-E019 FCS-E005

2022.01.28 2022.01.28 2022.01.28 2022.01.28 2022.01.28 2022.01.28

2023.01.27 2023.01.27 2023.01.27 2023.01.27 2023.01.27 2023.01.27

Conduction Test equipment
Kind of Equipment Manufacturer

Type No. Company No. Last calibration Calibrated until

EMI Test Receiver

R&S

ESPI

FCS-E020

2022.01.28

2023.01.27

LISN

R&S

ENV216

FCS-E007

2022.01.28

2023.01.27

LISN Temperature &
Humidity

ETS HTC-1

3810/2NM victor

FCS-E009 FCS-E008

2022.01.28 2022.01.28

2023.01.27 2023.01.27

RF Connected Test
Kind of Equipment Manufacturer

Spectrum Analyzer Keysight

Spectrum Analyzer

Agilent

Spectrum Analyzer

R&S

Type No. N9020A E4447A FSV-40

Company No. Last calibration Calibrated until

FCS-E015

2022.01.28

2023.01.27

MY50180039 2022.01.28

2023.01.27

101499

2022.01.28

2023.01.27

Page 11 of 23

Report No.:FCS202210160W01

3 CONDUCTED EMISSION MEASUREMENT

3.1 LIMIT

Operating frequency band. In case the emission fall within the restricted band specified on Part 207(a) limit in the table below has to be followed.

FREQUENCY (MHz)

Conducted Emissionlimit (dBuV)

Quasi-peak

Average

0.15 -0.5

66 - 56 *

56 - 46 *

0.50 -5.0

56.00

46.00

5.0 -30.0

60.00

50.00

Note: (1) The tighter limit applies at the band edges. (2) The limit of " * " marked band means the limitation decreases linearly with the logarithm of the
frequency in the range.

3.2 TEST PROCEDURE The following table is the setting of the receiver
Receiver Parameters Attenuation
Start Frequency
Stop Frequency
IF Bandwidth

Setting 10 dB 0.15 MHz 30 MHz 9 kHz

a. The EUT was 0.8 meters from the horizontal ground plane and 0.4 meters from the vertical ground plane with EUT being connected to the power mains through a line impedance stabilization network (LISN). All other support equipments powered from additional LISN(s). The LISN provide 50 Ohm/ 50uH of coupling impedance for the measuring instrument.
b. Interconnecting cables that hang closer than 40 cm to the ground plane shall be folded back and forth in the center forming a bundle 30 to 40 cm long.
c. I/O cables that are not connected to a peripheral shall be bundled in the center. The end of the cable may be terminated, if required, using the correct terminating impedance. The overall length shall not exceed 1 m.
d. LISN at least 80 cm from nearest part of EUT chassis. e. For the actual test configuration, please refer to the related Item EUT Test Photos.

Page 12 of 23

Report No.:FCS202210160W01

3.3 TEST SETUP
40cm

Vertical Reference Ground Plane
EUT

Test Receiver

LISN

80cm

Horizontal Reference Ground Plane
Note: 1.Support units were connected to second LISN. 2.Both of LISNs (AMN) are 80 cm from EUT and at least 80
cm from other units and other metal planes
support. units.

Page 13 of 23

Report No.:FCS202210160W01

3.4 TEST RESULTS

Temperature: Test Mode: Result:
L-line

25 Mode 4(Worst) Pass

Relative Humidity: 50%

Test Voltage:

DC 9V

No. Frequency Reading

(MHz)

(dBuV)

1 0. 1860 22.29

2 0. 1860

2.65

3 0.4965 13.53

4 0.4965

0.97

5 1.5000 11. 11

1.5000

-0.21

7 4.2135 10.67

8 4.2135 - 1.31

9 13.2270 10.89

10 13.2270 -0.20

11 28.7385 11.01

12 28.7385 0. 17

Correct Factor(dB)
10. 10 10. 10 10.02 10.02 9.98 9.98 9.90 9.90 9.81 9.81 9.90 9.90

Result (dBuV)
32.39 12.75 23.55 10.99 21.09 9.77 20.57 8.59 20.70 9.61 20.91 10.07

Limit (dBuV)
64.21 54.21 56.06 46.06 56.00 46.00 56.00 46.00 60.00 50.00 60.00 50.00

Margin (dB)
31.82 41.46 32.51 35.07 34.91 36.23 35.43 37.41 39.30 40.39 39.09 39.93

Remark
QP AVG QP AVG QP AVG QP AVG QP AVG QP AVG

N-line

Page 14 of 23

Report No.:FCS202210160W01

No. Frequency Reading

(MHz)

(dBuV)

1 0. 1770 24.01

2 0. 1770

2.29

3 0.3300 12.49

4 0.3300

0.65

5 0.8745 10. 13

0.8745

-0.56

7 2.2020 10.05

2.2020

-0.50

9 7.7055 11.28

10 7.7055

-0.55

11 18.8520 11.62

12 18.8520 -0.35

Correct Factor(dB)
10.06 10.06 10.03 10.03 9.99 9.99 9.96 9.96 9.83 9.83 9.96 9.96

Result (dBuV)
34.07 12.35 22.52 10.68 20. 12 9.43 20.01 9.46 21. 11 9.28 21.58 9.61

Limit (dBuV)
64.63 54.63 59.45 49.45 56.00 46.00 56.00 46.00 60.00 50.00 60.00 50.00

Margin (dB)
30.56 42.28 36.93 38.77 35.88 36.57 35.99 36.54 38.89 40.72 38.42 40.39

Remark
QP AVG QP AVG QP AVG QP AVG QP AVG QP AVG

Page 15 of 23

Report No.:FCS202210160W01

4. RADIATED EMISSION MEASUREMENT

4.1 LIMIT
In any 100 kHz bandwidth outside the operating frequency band. In case the emission fall within the Restricted band specified on Part15.205(a)&209(a) limit in the table and according to ANSI C63.10-2013 below has to be followed LIMITS OF RADIATED EMISSION MEASUREMENT (0.009mhz - 1000mhz)

Frequencies

Field Strength

Measurement Distance

(MHz)

(micorvolts/meter)

(meters)

0.009~0.490

2400/F(KHz)

300

0.490~1.705

24000/F(KHz)

1.705~30.0

30~88

100

88~216

150

216~960

200

Above 960

500

Notes: (1) The limit for radiated test was performed according to FCC PART 15C. (2) The tighter limit applies at the band edges. (3) Emission level (dBuV/m)=20log Emission level (uV/m). (4) Distance refers to the distance in meters between the measuring instrument antenna and the
EUT (5) The emission limits shown in the above table are based on measurements employing a CISPR
quasi-peak detector except for the frequency bands 9-90 kHz, 110-490 kHz. Radiated emission limits inthese three bands are based on measurements employing an average detector.

Page 16 of 23

Report No.:FCS202210160W01

4.2 TEST PROCEDURE

Spectrum Parameter

Setting

Attenuation

Auto

Detector

Peak/AV

Start Frequency

1000 MHz(Peak/AV)

Stop Frequency

10th carrier hamonic(Peak/AV)

RB / VB (emission in restricted band)

PK=1MHz / 1MHz, AV=1 MHz /10 Hz

a. The measuring distance of at 3 m shall be used for measurements at frequency 0.009MHz up to 1GHz,and above 1GHz.
b. The EUT was placed on the top of a rotating table 0.8 meters (above 1GHz is 1.5 m) above the ground at a 3 meter anechoic chamber test site. The table was rotated 360 degrees to determine the position of the highest radiation.
c. The height of the equipment shall be 0.8 m(above 1GHz is 1.5 m); the height of the test antenna shall vary between 1 m to 4 m. horizontal and vertical polarizations of the antenna are set to make the measurement.
d. The initial step in collecting conducted emission data is a spectrum analyzer peak detector mode pre-scanning the measurement frequency range. Significant peaks are then marked and then QuasiPeak detector mode re-measured. e. If the Peak Mode measured value compliance with and lower than Quasi Peak Mode Limit, the EUT shall be deemed to meet QP Limits and then no additional QP Mode measurement performed. f. For the actual test configuration, please refer to the related Item EUT Test Photos.

Note: Both horizontal and vertical antenna polarities were tested. The worst case emissions were reported

Page 17 of 23

Report No.:FCS202210160W01

4.3 TEST SETUP ARadiated Emission Test-Up Frequency Below 30MHz

BRadiated Emission Test-Up Frequency 30MHz~1GHz

CRadiated Emission Test-Up Frequency Above 1GHz

Page 18 of 23

Report No.:FCS202210160W01

4.4 TEST RESULTS For spurious emission

(9KHz-30MHz) Temperature: Test Voltage: Test Mode:

23.7 DC 9V Mode 4(Worst)

Relative Humidity: Phase:

61% Vertical

Frequency

No.

(MHz)

1 2 3 4* 5 6

0. 1457 0. 1785 0.2101 1.6054 4.8130 18.5234

Reading ( dBuV)
53.28 32.24 32.30 27.45 27. 19 29.74

Factor (dB)
20.31 20.33 21.23 22.25 23.56 24.12

Level (dBuV)
53.28 32.24 32.30 27.45 27. 19 29.74

Limit Margin (dBuV) (dB) Detector

104.34 102.58 101. 17 63.52 69.50 69.50

-51.06 -70.34 -68.87 -36.07 -42.31 -39.76

AVG AVG AVG QP QP QP

Remarks: 1. Final Level =Receiver Read level + Factor 2.The emission limits shown in the above table are based on measurements employing a CISPR quasi-peak detector except for the frequency bands 9-90 kHz, 110-490 kHz. Radiated emission limits inthese three bands are based on measurements employing an average detector

Page 19 of 23

Report No.:FCS202210160W01

(30MHZ-1000MHZ)
Temperature: Test Voltage: Test Mode:

23.7 DC 9V Mode 4(Worst)

Relative Humidity: Phase:

61% Horizontal

No. Frequency (MHz)
1 39.2991 2 59.0251 3 108.6470 4 201.3930 5 368.1116 6 848.0563

Reading (dBuV) 44.21 48.72 51.45 45.65 48.97 32.91

Correction (dB/m) -17.78 -17.68 -17.82 -17.12 -14.20 -6.95

Result (dBuV/m)
26.43 31.04 33.63 28.53 34.77 25.96

Limit (dBuV/m)
40.00 40.00 43.50 43.50 46.00 46.00

Margin (dB) -13.57 -8.96 -9.87 -14.97 -11.23 -20.04

Remark
QP QP QP QP QP QP

Remarks: 1. Final Level =Receiver Read level + Factor

Page 20 of 23

Report No.:FCS202210160W01

Temperature: Test Voltage: Test Mode:

22.7 DC 9V Mode 4(Worst)

Relative Humidity: Phase:

61% Vertical

No. Frequency (MHz)
1 30.8535 2 59.2325 3 109.0284 4 186.4404 5 250.3010 6 374.6225

Reading (dBuV)
50.52 53.25 57.52 49.39 45.38 39.29

Correction (dB/m)
-16.82 -17.68 -17.79 -19.55 -16.84 -14.22

Result (dBuV/m)
33.70 35.57 39.73 29.84 28.54 25.07

Limit (dBuV/m)
40.00 40.00 43.50 43.50 46.00 46.00

Margin (dB)
-6.30 -4.43 -3.77 -13.66 -17.46 -20.93

Remark
QP QP QP QP QP QP

Remarks: 1. Final Level =Receiver Read level + Factor

Page 21 of 23

Report No.:FCS202210160W01

5. 20 DB BANDWIDTH TEST
5.1 LIMIT According to 15.215 (c) Intentional radiators operating under the alternative provisions to the general emission limits, as contained in § 15.217 through 15.257 and in Subpart E of this part, must be designed to ensure that the 20 dB bandwidth of the emission, or whatever bandwidth may otherwise be specified in the specific rule section under which the equipment operates, is contained within the frequency band designated in the rule section under which the equipment is operated. The requirement to contain the designated bandwidth of the emission within the specified frequency band includes the effects from frequency sweeping, frequency hopping and other modulation techniques that may be employed as well as the frequency stability of the transmitter over expected variations in temperature and supply voltage. If a frequency stability is not specified in the regulations, it is recommended that the fundamental emission be kept within at least the central 80% of the permitted band in order to minimize the possibility of out-of-band operation

5.2 TEST PROCEDURE Check the calibration of the measuring instrument using either an internal calibrator or a
a. known signal from an external generator b. Position the EUT without connection to measurement instrument. Turn on the EUT and
connect it to measurement instrument. Then set it to any one convenient frequency within its operating range. Set a reference level on the measuring instrument equal to the highest peak value. c. Measure the frequency difference of two frequencies that were attenuated 20 dB from the reference level. Record the frequency difference as the emission bandwidth.
5.3 TEST SETUP

Page 22 of 23

Report No.:FCS202210160W01

5.4 TEST RESULTS

Temperature: Test Mode:

25 Mode 4(Worst)

Relative Humidity: 50%

Test Voltage:

DC 9V

Frequency (KHz)
145.2

20dB Bandwidth (Hz)
1000

Result PASS

Page 23 of 23

Report No.:FCS202210160W01

6. ANTENNA REQUIREMENT
6.1 STANDARD REQUIREMENT 15.203 requirement: For intentional device, according to 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.
6.2 EUT ANTENNA The antennas used for this product is Inductive Loop Antenna and no other than that furnished by the responsible party shall be used with the device, the maximum peak gain of the transmit antenna is 1.0dBi.

END OF THE REPORT

Related FCC IDs:

2AXTH-C5 - Shenzhen Caibo Technology Co., Ltd. Wireless charger [-C5]

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