Test Report

FCC ID: UYFMF210T

Test Report

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FCCID_761523

Page 1 of 21

FCC CERTIFICATION
On Behalf of
Shenzhen Kingsun Enterprises Co., Ltd.

Wireless Headphone
Model No.: MF-210

FCC ID: UYFMF210T

Prepared for : Shenzhen Kingsun Enterprises Co., Ltd.
Address : 25F, CEC Information Building, Xinwen Rd., Shenzhen
Guangdong, P.R.China
Prepared by : ACCURATE TECHNOLOGY CO. LTD
Address : F1, Bldg. A, Changyuan New Material Port, Keyuan Rd.
Science & Industry Park, Nanshan, Shenzhen, Guangdong
P.R. China

Tel: (0755) 26503290
Fax: (0755) 26503396

Report Number : ATE20070164
Date of Test : January 15, 2007
Date of Report : January 19, 2007

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 2 of 21

TABLE OF CONTENTS
Description Page
Test Report Certification
1. GENERAL INFORMATION .......................................................................................................... 4
1.1. Description of Device (EUT)....................................................................................................................4
1.2. Description of Test Facility ......................................................................................................................4
1.3. Measurement Uncertainty.........................................................................................................................4
2. MEASURING DEVICE AND TEST EQUIPMENT ..................................................................... 5
3. RADIATED EMISSION FOR FCC PART 15 SECTION 15.239(C)........................................... 6
3.1. Block Diagram of Test Setup....................................................................................................................6
3.2. The Emission Limit for section 15.239(c) ................................................................................................6
3.3. Configuration of EUT on Measurement ...................................................................................................7
3.4. Operating Condition of EUT ....................................................................................................................7
3.5. Test Procedure ..........................................................................................................................................7
3.6. The Field Strength of Radiation Emission Measurement Results ............................................................8
4. FUNDAMENTAL RADIATED EMISSION FOR FCC PART 15 SECTION 15.239(B) .......... 9
4.1. Block Diagram of Test Setup....................................................................................................................9
4.2. The Emission Limit For Section 15.239(b) ..............................................................................................9
4.3. EUT Configuration on Measurement .....................................................................................................10
4.4. Operating Condition of EUT ..................................................................................................................10
4.5. Test Procedure ........................................................................................................................................10
4.6. The Emission Measurement Result ........................................................................................................11
5. OCCUPIED BANDWIDTH FOR FCC PART 15 SECTION 15.239(A) ................................... 14
5.1. The Requirement For Section 15.239(a).................................................................................................14
5.2. EUT Configuration on Measurement .....................................................................................................14
5.3. Operating Condition of EUT ..................................................................................................................14
5.4. Test Procedure ........................................................................................................................................14
5.5. Test Result ..............................................................................................................................................15
6. TUNING RANGE ........................................................................................................................... 16
6.1. The Requirement For Section 15.239 .....................................................................................................16
6.2. EUT Configuration on Measurement .....................................................................................................16
6.3. Operating Condition of EUT ..................................................................................................................16
6.4. Test Procedure ........................................................................................................................................16
6.5. Test Result ..............................................................................................................................................17
APPENDIX I ( TEST CURVES) (3pages)

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 4 of 21

1. GENERAL INFORMATION

1.1.Description of Device (EUT)
EUT : Wireless Headphone
Model Number : MF-210
Power Supply : DC 3.0V (AAA Battery ¯2)
Operate Frequency : 88.4MHz
Channel : 1
iPod : Manufacturer: Apple
M/N: A1136
S/N: JQ543GF9SZA
Applicant : Shenzhen Kingsun Enterprises Co., Ltd.
Address : 25F, CEC Information Building, Xinwen Rd., Shenzhen
Guangdong, P.R.China
Manufacturer : Shenzhen Kingsun Enterprises Co., Ltd.
Address : 25F, CEC Information Building, Xinwen Rd., Shenzhen
Guangdong, P.R.China
Date of sample received : January 09, 2007
Date of Test : January 15, 2007

1.2.Description of Test Facility
EMC Lab : Accredited by TUV Rheinland Shenzhen, May 10, 2004

Accredited by FCC, May 10, 2004
The Certificate Registration Number is 253065

Accredited by Industry Canada, May 18, 2004
The Certificate Registration Number is IC 5077

Name of Firm : ACCURATE TECHNOLOGY CO. LTD
Site Location : F1, Bldg. A, Changyuan New Material Port, Keyuan Rd.
Science & Industry Park, Nanshan, Shenzhen, Guangdong
P.R. China

1.3.Measurement Uncertainty
Conducted emission expanded uncertainty = 2.23dB, k=2

Radiated emission expanded uncertainty = 4.12dB, k=2

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 5 of 21

2. MEASURING DEVICE AND TEST EQUIPMENT
Table 1: List of Test and Measurement Equipment
Kind of equipment Manufacturer Type S/N Calibrated until
EMI Test Receiver Rohde&Schwarz ESCS30 100307 03.31.2007
EMI Test Receiver Rohde&Schwarz ESI26 838786/013 01.24.2008
Bilog Antenna Schwarzbeck VULB9163 9163-194 03.31.2007
Bilog Antenna Chase CBL6112B 2591 03.31.2007
Horn Antenna Rohde&Schwarz HF906 100013 01.24.2008
Spectrum Analyzer Anritsu MS2651B 6200238856 03.31.2007
Pre-Amplifier Agilent 8447D 2944A10619 03.31.2007
L.I.S.N. Rohde&Schwarz ESH3-Z5 100305 03.31.2007
L.I.S.N. Rohde&Schwarz ESH3-Z5 100310 03.31.2007

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

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3. RADIATED EMISSION FOR FCC PART 15 SECTION 15.239(C)

3.1.Block Diagram of Test Setup
3.1.1.Block diagram of connection between the EUT and simulators

iPod EUT

(EUT: Wireless Headphone)

3.1.2.Anechoic Chamber Test Setup Diagram

ANTENNA ELEVATION VARIES FROM 1 TO 4 METERS
3 METERS

EUT

Cable
0.8 METER

GROUND PLANE
(EUT: Wireless Headphone)

3.2.The Emission Limit for section 15.239(c)
3.2.1 The field strength of any emissions radiated on any frequency outside of the
specified 200kHz band shall not exceed the general radiated emission limits in
section 15.209
Radiation Emission Measurement Limits According to Section 15.209
Limit,
Frequency Field Strength of Field Strength of The final measurement
Quasi-peak Value Quasi-peak Value in band 9-90kHz,
(MHz)
(microvolts/m) (dBμV/m) 110-490kHz and
above 1000MHz is
30 - 88 100 40 performed with
Average detector.
88 - 216 150 43.5 Except those
frequency bands

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 7 of 21

mention above, the
216 - 960 200 46
final measurement for
frequencies below
1000MHz is
Above 960 500 54
performed with Quasi
Peak detector.

3.3.Configuration of EUT on Measurement
The following equipment are installed on Radiated Emission Measurement to meet the
commission requirements and operating regulations in a manner which tends to maximize
its emission characteristics in normal application.
3.3.1.Wireless Headphone (EUT)
Model Number : MF-210
Serial Number : N/A
Manufacturer : Shenzhen Kingsun Enterprises Co., Ltd.

3.4.Operating Condition of EUT
3.4.1.Setup the EUT and simulator as shown as Section 3.1.

3.4.2.Turn on the power of all equipment.
Let the EUT work in TX modes [Connect EUT audio cable to iPod headphone
jack and iPod playing typical audio signal(music song) with maximum audio
level] measure it.
Note: The EUT is connected to iPod by the base interface of iPod. The input signal of EUT is
controlled by iPod. so the volume control of iPod was set to maximum during the test. It means
that the test was performed with the maximum audio input.

3.5.Test Procedure
The EUT and its simulators are placed on a turntable, which is 0.8 meter high above
ground. The turntable can rotate 360 degrees to determine the position of the maximum
emission level. EUT is set 3.0 meters away from the receiving antenna, which is mounted
on an antenna tower. The antenna can be moved up and down between 1.0 meter and 4
meters to find out the maximum emission level. Broadband antenna (calibrated bilog
antenna) is used as receiving antenna. Both horizontal and vertical polarizations of the
antenna are set on measurement. In order to find the maximum emission levels, all of the
interface cables must be manipulated according to ANSI C63.4: 2003 on radiated
emission measurement.
The bandwidth of test receiver (R&S ESCS30) is set at 120KHz in 30-1000MHz; Set at
1MHz in above 1000MHz.
The frequency range from 30MHz to 1000MHz is checked.
The final measurement in band 9-90kHz, 110-490kHz and above 1000MHz is performed
with Average detector. Except those frequency bands mention above, the final
measurement for frequencies below 1000MHz is performed with Quasi Peak detector.

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 9 of 21

4. FUNDAMENTAL RADIATED EMISSION FOR FCC PART 15

SECTION 15.239(B)

4.1.Block Diagram of Test Setup
4.1.1.Block diagram of connection between the EUT and simulators

iPod EUT

(EUT: Wireless Headphone)

4.1.2.Anechoic Chamber Test Setup Diagram

ANTENNA ELEVATION VARIES FROM 1 TO 4 METERS

3 METERS

EUT

Cable
0.8 METER

GROUND PLANE

(EUT: Wireless Headphone)

4.2.The Emission Limit For Section 15.239(b)
4.2.1 The field strength of any emission within the permitted 200kHz band shall not
exceed 250microvolts/meter at 3 meters. The emission limit in this paragraph is based on
measurement instrumentation employing an average detector. The provisions in section
15.35 for limiting peak emissions apply.

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 10 of 21

4.3.EUT Configuration on Measurement
The following equipment are installed on the emission Measurement to meet the
commission requirements and operating regulations in a manner which tends to maximize
its emission characteristics in normal application.
4.3.1.Wireless Headphone (EUT)
Model Number : MF-210
Serial Number : N/A
Manufacturer : Shenzhen Kingsun Enterprises Co., Ltd.

4.4.Operating Condition of EUT
4.4.1.Setup the EUT and simulator as shown as Section 4.1.

4.4.2.Turn on the power of all equipment.
Let the EUT work in TX modes [Connect EUT audio cable to iPod headphone
jack and iPod playing typical audio signal(music song) with maximum audio
level] measure it.
Note: The EUT is connected to iPod by the base interface of iPod. The input signal of
EUT is controlled by iPod. so the volume control of iPod was set to maximum
during the test. It means that the test was performed with the maximum audio
input.

4.5.Test Procedure
The EUT and its simulators are placed on a turntable, which is 0.8 meter high above
ground. The turntable can rotate 360 degrees to determine the position of the maximum
emission level. EUT is set 3.0 meters away from the receiving antenna, which is mounted
on an antenna tower. The antenna can be moved up and down between 1.0 meter and 4
meters to find out the maximum emission level. Broadband antenna (calibrated bilog
antenna) is used as receiving antenna. Both horizontal and vertical polarizations of the
antenna are set on measurement. In order to find the maximum emission levels, all of the
interface cables must be manipulated according to ANSI C63.4: 2003 on radiated
emission measurement.

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 11 of 21

4.6.The Emission Measurement Result

PASS.

Date of Test: February 7, 2007 Temperature: 25oC
EUT: Wireless Headphone Humidity: 55%
Model No.: MF-210 Power Supply: DC 3.0V (AAA Battery ¯2)
Test Mode: TX Test Engineer: Andy

Fundamental Radiated Emissions

Frequency Reading(dBμV/m) Factor(dB) Result(dBμV/m) Limit(dBμV/m) Margin(dBμV/m) Polarizati
on
(MHz) AV PEAK Corr. AV PEAK AV PEAK AV PEAK
88.4 40.6 44.3 6.3 46.8 50.6 48 68 1.2 17.4 Vertical
88.4 35.8 39.4 8.3 44.1 47.7 48 68 3.9 20.3 Horizontal

The Average measurement plots are attached as below.
The data of Average measurement in plots are with corrected factors.
The field strength is calculated by adding the antenna factor, high pass filter loss (if used) and cable loss, and
subtracting the amplifier gain(if any)from the measured reading. The basic equation calculation is as follows:
Result = Reading + Corrected Factor
Where Corrected Factor = Antenna Factor + Cable Loss + High Pass Filter Loss – Amplifier Gain

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 14 of 21

5. OCCUPIED BANDWIDTH FOR FCC PART 15 SECTION

15.239(A)

5.1.The Requirement For Section 15.239(a)
5.1.1. Emission from the device shall be confined within a band 200kHz wide centered on
the operating frequency. The 200kHz band shall lie wholly within the frequency
range of 88-108MHz.

5.2.EUT Configuration on Measurement
The following equipment are installed on the emission Measurement to meet the
commission requirements and operating regulations in a manner which tends to maximize
its emission characteristics in normal application.
5.2.1.Wireless Headphone (EUT)
Model Number : MF-210
Serial Number : N/A
Manufacturer : Shenzhen Kingsun Enterprises Co., Ltd.

5.3.Operating Condition of EUT
5.3.1.Setup the EUT and simulator as shown as Section 4.1.

5.3.2.Turn on the power of all equipment.
Let the EUT work in TX modes [Connect EUT audio cable to iPod headphone
jack and iPod playing typical audio signal(music song) with maximum audio
level] measure it.
Note: The EUT is connected to iPod by the base interface of iPod. The input signal of EUT is
controlled by iPod. so the volume control of iPod was set to maximum during the test. It means
that the test was performed with the maximum audio input.

5.4.Test Procedure
5.4.1. The EUT was placed on a turn table which is 0.8m above ground plane.
5.4.2. Set EUT as normal operation. Playing MP3.(the volume control of iPod was set to
maximum.)
5.4.3. Set EMI test r e c e i v e r Center Frequency = fundamental frequency, RBW,
VBW= 10kHz, Span=300kHz.
5.4.4. Set EMI test r e c e i v e r Max hold. Mark peak, -26dB.

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 16 of 21

6. TUNING RANGE

6.1.The Requirement For Section 15.239
88-108MHz

6.2.EUT Configuration on Measurement
The following equipment are installed on the emission Measurement to meet the
commission requirements and operating regulations in a manner which tends to maximize
its emission characteristics in normal application.
6.2.1.Wireless Headphone (EUT)
Model Number : MF-210
Serial Number : N/A
Manufacturer : Shenzhen Kingsun Enterprises Co., Ltd.

6.3.Operating Condition of EUT
6.3.1.Setup the EUT and simulator as shown as Section 4.1.

6.3.2.Turn on the power of all equipment.
Let the EUT work in TX modes

6.4.Test Procedure
6.4.1. The EUT was placed on a turn table which is 0.8m above ground plane.
6.4.2. Set the EUT working on the working frequency.
6.4.3. Set EMI test receiver center frequency = working frequency, RBW, VBW=
10kHz, Span=300kHz.
6.4.4. Measuring the working frequency.
6.4.5. The working frequency should be inside 88-108MHz.

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Page 18 of 21

APPENDIX I
(Test Curves)

FCC ID: UYFMF210T ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20070164

Document Created: 2007-02-13 11:06:08
Document Modified: 2007-02-13 11:06:08

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