ANL15102515 F Report

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FCC TEST REPORT
Report Number: ANL15102515-F

Equipment under test(EUT):
AC adapter

Model No.:
DK-090M

Applicant:
DAKAI ELECTRONIC TECHNOLOGY(HK) CO., LIMITED
FLAT/RM B 8/F CHONG MING BLDG 72 CHEUNG SHA WAN ROAD
KOWLOON HONG KONG

Date of Test:
October 29, 2015

Date of Issue:
November 5, 2015

Test Standards
FCC CFR47 Part15 Subpart B
The device described above is tested by Ankel Testing (DongGuan) Co., Ltd.
to determine the maximum emission levels emanating from the device, the severe levels which the
device can endure and performance criterion. The sample detailed above has been tested to the
requirements of Council Directives ANSI C63.4:2009. The test results have been reviewed against
the Directives above and found to meet their essential requirements
Without written approval of Ankel Testing (DongGuan) Co., Ltd., the test report shall not be
reproduced except in full.

Approved By:

Tested By:

Manager

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 1 of 14

1
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2 

3 
4 

5 

6 

7 

Contents
Contents ........................................................................................................................................................ 2 
EUT(Equipment Under Test) Information ................................................................................................ 3 
2.1 
Client Information ................................................................................................................................. 3 
2.2 
Description of E.U.T. ............................................................................................................................. 3 
2.3 
Power Supply of E.U.T. ......................................................................................................................... 3 
2.4 
Description of Support Units ................................................................................................................. 3 
2.5 
Test Facility ........................................................................................................................................... 3 
2.6 
Test Uncertainty ..................................................................................................................................... 4 
Test Results Summary ................................................................................................................................. 4 
Test Instrument During Test ....................................................................................................................... 5 
4.1 
Radiated Emission ................................................................................................................................. 5 
4.2 
Conducted Emission&Disturbance Power ............................................................................................. 5 
Conducted Disturbance at the Mains Ports............................................................................................... 6 
5.1 
Test Standard.......................................................................................................................................... 6 
5.2 
Limits for Conducted Disturbance ......................................................................................................... 6 
5.3 
Test Set-up ............................................................................................................................................. 6 
5.4 
Test Procedure ....................................................................................................................................... 7 
5.5 
Operating Condition of EUT ................................................................................................................. 7 
5.6 
Test Results and Data............................................................................................................................. 7 
Radiated Emission Test ............................................................................................................................. 10 
6.1 
Test Standard........................................................................................................................................ 10 
6.2 
Limits of Radiated Emission(3m) ........................................................................................................ 10 
6.3 
Test Set-up ........................................................................................................................................... 10 
6.4 
Test Procedure ......................................................................................................................................11 
6.5 
Operating Condition of EUT ................................................................................................................11 
6.6 
Test Results and Data............................................................................................................................11 
Photographs - Constructional Details ...................................................................................................... 13 
7.1 
EUT - Front View ................................................................................................................................ 13 
7.2 
EUT - Back View ................................................................................................................................. 13 
7.3 
PCB - Front View ................................................................................................................................ 14 
7.4 
PCB - Back View ................................................................................................................................. 14

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 2 of 14

2

EUT(Equipment Under Test) Information

2.1 Client Information
Applicant :

DAKAI ELECTRONIC TECHNOLOGY(HK) CO., LIMITED

Address of Applicant:

FLAT/RM B 8/F CHONG MING BLDG 72 CHEUNG SHA
WAN ROAD KOWLOON HONG KONG

Manufacturer:
Address of Manufacturer:

DAKAI ELECTRONIC TECHNOLOGY(HK) CO., LIMITED
Liheng Industrial Park, QingXi Town, DongGuan City,
GuangDong Province, China

2.2 Description of E.U.T.
Product Name:

AC adapter

Model No.:

DK-090M

2.3 Power Supply of E.U.T.
Input:

220-240V~, 50/60Hz

2.4 Description of Support Units
The EUT has been tested as an independent unit.

2.5 Test Facility
The test facility is recognized, certified, or accredited by the following organizations:
Name of Facility : Solid Industrial (Shenzhen) Co., Ltd. EMC Laboratory
Location
Site Description

: Solid Industrial (Shenzhen) Co., Ltd. at 333 Bulong Highway Buji
Longgang, Shenzhen, Guangdong, China.
:April 06. 2004 accredited by Voluntary Control Council for Interference
by information Technology Equipment for Laboratories Registration
Number:2153
Solid Industrial (Shenzhen) Co., Ltd. EMC Laboratory has been
registered and fully described in a report filed with the (FCC) Federal
Communications Commission. The acceptance letter from the FCC is
maintained in our files. Registration 759397, December 28, 2006.

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 3 of 14

2.6 Test Uncertainty
Conducted Emission Uncertainty : ± 2.66dB
Radiated Emission Uncertainty : ± 3.56dB

3

Test Results Summary
Test Items

Test Requirement

Test Method

Results

Conducted Emission

FCC Part 15,
Subpart B

ANSI C63.4: 2009

PASS

FCC Part 15,
Subpart B

ANSI C63.4: 2009

PASS

(150kHz to 30MHz)
Radiated Emission
(30MHz to 1GHz)

Note: Above test marking “N/A” is not applicable.

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 4 of 14

4

Test Instrument During Test

4.1 Radiated Emission
Equipment

Brand Name

Model

Cal. Int Months Last Cal. Date

EMC Analyzer

Agilent

E7402A

12

2015-08

EMI Test Receiver

R&S

ESS

12

2015-08

Pre Amplifier

Anritsu

MH648A

12

2015-08

Bilog Antenna

SCHAFFNER

CBL6111C

12

2015-08

Panasonic

VP-8122A

12

Signal Generator

R&S

SMG

12

2015-08

RF Selector

TOYO

NS4901A

-

-

Turn Disc

HD

DS4150S

-

-

Antenna Mast

HD

MA2400

-

-

AM/FM Stereo Signal
Generator

2015-08

4.2 Conducted Emission&Disturbance Power
Equipment

Brand Name

Model

Cal. Int Months Last Cal. Date

Spectrum analyzer

ADVANTEST

R3261C

12

2015-08

EMI Test Receiver

R&S

ESS

12

2015-08

Pre Amplifier

Anritsu

MH648A

12

2015-08

LISN

Kyoritsu

KNW-403D

12

2015-08

LISN

Kyoritsu

KNW-407

12

2015-08

LISN

Kyoritsu

KNW-242C

12

2015-08

Absorbing Clamp

R&S

MDS-21

12

2015-08

Absorbing Clamp

R&S

MDS-21

12

2015-08

KT-20

12

-

MAK-6578A

12

2015-08

VP-8122A

12

2015-08

Absorbing Clamp
Distortion Meter

Kyoritsu
MEGURO

AM/FM Stereo Signal Panasonic
Generator
Oscilloscope

LEADER

LS1020

12

2015-08

Function Generator

National

VP-7422A

12

2015-08

Signal Generator

R&S

SMG

12

2015-08

RF Selector

TOYO

NS4000

-

-

RF Selector

TOYO

NS4900

-

-

Remote Controller

TOYO

MAC

-

-

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 5 of 14

5

Conducted Disturbance at the Mains Ports

5.1 Test Standard
FCC CFR47 Part15 Subpart B

5.2 Limits for Conducted Disturbance
Frequency range
MHz
0.15 to 0.50
0.50 to 5
5 to 30

Limits
dB(μV)
Quasi-peak
66 to 56
56
60

Average
56 to 46
46
50

NOTE 1 At the transition frequency, the lower limit applies.
NOTE 2 The limit decreasing linearly with the logarithm of the frequency in range 0.15MHz to
0.50MHz.

5.3 Test Set-up

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 6 of 14

5.4 Test Procedure
a. The EUT was placed on a desk 0.8 meter height from the metal ground plane and 0.4 meter
from the conducting wall of the shielding room and it was kept at least 0.8 meter from any other
grounded conducting surface.
b. Connect EUT to the power mains through a line impedance stabilization network(LISN).
c. All the support units are connect to the other LISN.
d. The LISN provides 50 ohm coupling impedance for the measuring instrument.
e. The CISPR states that a 50ohm, 50 microhenry LISN should be used.
f. Both sides of AC line were checked for maximum conducted interference.
g. The frequency range from 150kHz to 30MHz was searched.
h. Set the test-receiver system to Peak Detect Function and Specified Bandwidth with Maxium
Hold Mode.

5.5 Operating Condition of EUT
Operating Environment:
Temperature:
24.0°C
Humidity:
52 % RH
Barometric Pressure:
1012 mbar
EUT Operation:
Compliance test was performed in ON mode connected with the full load.
1:Setup the EUT and simulators as shown in Section 5.3.
2:Turn on the power of all equipments.
3:Let the EUT work in test modes and test it.

5.6 Test Results and Data
Test Date: October 29, 2015

PASS.
The frequency spectrum from 150 kHz to 30 MHz is investigated.
Corrected Reading(dBμV) = Insertion Loss + Cable Loss + Read Level = Level

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 7 of 14

L Line:

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 8 of 14

N Line:

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 9 of 14

6

Radiated Emission Test

6.1 Test Standard
FCC Part 15.109 Class B

6.2 Limits of Radiated Emission(3m)
Frequency
MHz
30~88
88~216
216~960
960~1000

Limits dB(μV/m)
QP Level
40
43.5
46
54

6.3 Test Set-up

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 10 of 14

6.4 Test Procedure
a. The EUT was placed on a rotatable table top 0.8 meter above ground.
b. The EUT was set 3 meters from the interference-receiving antenna which was mounted on the
top of a variable height antenna tower.
c. The table was rotated 360 degrees to determine the position the highest radiation.
d. The antenna height is varied between one meter and four meters above ground to find the
maximum value of the field strength both horizontal polarization and vertical polarization of the
antenna are set to make the measurement.
e. For each suspected emission the EUT was arranged to its worst case and then tune the antenna
tower(from 1M to 4M) and turn table (from 0 degress to 360 degrees) to find the maximum
reading.
f. Set the test-receiver system to peak Detect Function and specified bandwidth with Maximum
Hold Mode.
g. If the emission level of the EUT in peak mode was 3 dB lower than the limit specified, then
testing will be stopped and peak values of EUT will be reported, otherwise, the emissions which
do not have 3dB margin will be repeated one by one using the quasi-peak method and reported.

6.5 Operating Condition of EUT
Operating Environment:
Temperature:
24.0°C
Humidity:
52 % RH
Barometric Pressure:
1012 mbar
EUT Operation:
Compliance test was performed in charging and lighting mode.
1:Setup the EUT and simulators as shown in Section 6.3.
2:Turn on the power of all equipments.
3:Let the EUT work in test modes and test it.

6.6 Test Results and Data
Test Date: October 29, 2015

PASS.
The frequency range 30MHz to1000MHz is investigated.
Corrected Reading: Antenna Factor + Cable Loss + Read Level – Preamp Factor = Level

EUT:

AC adapter

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 11 of 14

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 12 of 14

7

Photographs - Constructional Details

7.1 EUT - Front View

7.2 EUT - Back View

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

Report No.: ANL15102515-F

Page 13 of 14

7.3 PCB - Front View

7.4 PCB - Back View

---------------------------

END

Ankel Testing (DongGuan) Co., Ltd
KaiGao South Plaza, XinXiBian GuanChang Road,
DongCheng District, DongGuan, GuangDong, China

-------------------------Report No.: ANL15102515-F

Page 14 of 14



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