TEST REPORT

FCC ID: WC2DS-456

Test Report

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FCCID_959760

Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

2 Contents
Page
1 COVER PAGE..........................................................................................................................................................1
2 CONTENTS ...............................................................................................................................................................2
3 TEST SUMMARY.....................................................................................................................................................4
4 GENERAL INFORMATION ...................................................................................................................................5
4.1 CLIENT INFORMATION ..........................................................................................................................................5
4.2 GENERAL DESCRIPTION OF E.U.T. .......................................................................................................................5
4.3 DETAILS OF E.U.T................................................................................................................................................5
4.4 DESCRIPTION OF SUPPORT UNITS .........................................................................................................................5
4.5 STANDARDS APPLICABLE FOR TESTING ...............................................................................................................5
4.6 TEST FACILITY .....................................................................................................................................................6
4.7 TEST LOCATION ...................................................................................................................................................6
5 EQUIPMENT USED DURING TEST.....................................................................................................................7
6 CONDUCTED EMISSION TEST............................................................................................................................8
6.1 TEST EQUIPMENT .................................................................................................................................................8
6.2 TEST PROCEDURE .................................................................................................................................................8
6.3 CONDUCTED TEST SETUP .....................................................................................................................................9
6.4 EUT OPERATING CONDITION ...............................................................................................................................9
6.5 CONDUCTED EMISSION LIMITS...........................................................................................................................10
6.6 CONDUCTED EMISSION TEST RESULT ................................................................................................................11
6.7 MEASUREMENT DATA ........................................................................................................................................12
7 RADIATION EMISSION TEST ............................................................................................................................13
7.1 TEST EQUIPMENT ...............................................................................................................................................13
7.2 MEASUREMENT UNCERTAINTY ..........................................................................................................................13
7.3 TEST PROCEDURE ...............................................................................................................................................13
7.4 RADIATED TEST SETUP ......................................................................................................................................14
7.5 SPECTRUM ANALYZER SETUP ............................................................................................................................14
7.6 CORRECTED AMPLITUDE & MARGIN CALCULATION..........................................................................................15
7.7 SUMMARY OF TEST RESULTS .............................................................................................................................15
7.8 EUT OPERATING CONDITION .............................................................................................................................16
7.9 RADIATED EMISSIONS LIMIT ..............................................................................................................................16
7.10 RADIATED EMISSIONS TEST RESULT ..................................................................................................................17
8 BAND EDGE............................................................................................................................................................20
8.1 TEST EQUIPMENT ...............................................................................................................................................20
8.2 TEST PROCEDURE ...............................................................................................................................................20
8.3 BAND EDGE........................................................................................................................................................20
8.4 BAND EDGE TEST RESULT .................................................................................................................................21
9 PHOTOGRAPHS OF TESTING ...........................................................................................................................22
9.1 CONDUCTED EMISSION TEST VIEW ....................................................................................................................22
9.2 RADIATION EMISSION TEST VIEW FOR 30MHZ-1000MHZ ................................................................................23
9.3 RADIATION EMISSION TEST VIEW FOR 1GHZ-10GHZ .......................................................................................23
10 PHOTOGRAPHS - CONSTRUCTIONAL DETAILS.........................................................................................24
10.1 EUT - FRONT VIEW ............................................................................................................................................24
10.2 EUT - BACK VIEW .............................................................................................................................................24

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

10.3 PCB1 - FRONT VIEW ..........................................................................................................................................25
10.4 PCB1 - BACK VIEW ...........................................................................................................................................25
10.5 PCB2 - FRONT VIEW ..........................................................................................................................................26
10.6 PCB2 - BACK VIEW ...........................................................................................................................................26
11 FCC ID LABEL .......................................................................................................................................................27

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

3 Test Summary
Test Test Requirement Test Method Class / Severity Result

Radiated Emission
FCC PART 15: 2003 ANSI C63.4: 2003 Class B PASS
(30MHz to 10GHz)

Conducted Emission
FCC PART 15: 2003 ANSI C63.4: 2003 Class B PASS
(150KHz to 30MHz)

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

4 General Information
4.1 Client Information
Applicant: Wonders Industrial Development (Shenzhen) Co., Ltd.
Address of Applicant: DOSS Industrial Zone, Qiping Kengdu Industrial Area, Guihua
Village, Guanlan Town, Baoan District, Shenzhen, China
Manufacturer: Wonders Industrial Development (Shenzhen) Co., Ltd.
Address: DOSS Industrial Zone, Qiping Kengdu Industrial Area, Guihua
Village, Guanlan Town, Baoan District, Shenzhen, China

4.2 General Description of E.U.T.
Product description: IPOD WIRELESS SPEAKER
Model No.: DS-456, DS-482, DS-483, DS-609, DS-495, DS-464, DS-472,
DS-492, 4015111, 4015110

4.3 Details of E.U.T.
Power Supply: Adapter input: 100-240V 50/60Hz 0.6A
Adapter output: 9V 1.5A

4.4 Description of Support Units

The EUT has been tested as an independent unit.

4.5 Standards Applicable for Testing

The customer requested FCC tests for a IPOD WIRELESS SPEAKER. The standards used
were FCC 15 Paragraph 15.249, Paragraph 15.207, Paragraph 15.209, Paragraph 15.31,
Paragraph 15.33, Paragraph 15.35.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

4.6 Test Facility

The test facility is recognized, certified, or accredited by the following organizations:
• FCC – Registration No.: 994117
SEM. Test Compliance Service Co., Ltd. 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 994117, May 11, 2008.

4.7 Test Location

All Emissions tests were performed at:-
SEM Test Compliance Service Co., Ltd. at 3/F., Jinbao Commerce Bldg., Xin’an Fanshen Rd.,
Bao’an District, Shenzhen, 518101, China

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

6 Conducted Emission Test
Product Name: IPOD WIRELESS SPEAKER
Test Requirement: FCC Part15 Paragraph 15.207
Test Method: Based on FCC Part15 Paragraph 15.207
Test Date: June 20, 2008
Frequency Range: 150 kHz to 30MHz
Class: Class B
Detector: Peak for pre-scan (9 kHz Resolution Bandwidth)
Quasi-Peak & Average if maximised peak within 6dB of
Average Limit

6.1 Test Equipment

Please refer to Section 5 this report.

6.2 Test Procedure

1. The EUT was tested according to ANSI C63.4: 2003. The frequency spectrum from 150kHz
to 30MHz was investigated.
2. The maximised peak emissions from the EUT was scanned and measured for both the Live
and Neutral Lines. Quasi-peak & average measurements were performed if peak emissions
were within 6dB of the average limit line.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

6.5 Conducted Emission Limits

66-56 dBμV/m between 0.15MHz & 0.5MHz
56 dBμV/m between 0.5MHz & 5MHz
60 dBμV/m between 5MHz & 30MHz
Note: In the above limits, the tighter limit applies at the band edges.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

6.7 Measurement Data
QP FCC 15 AV FCC 15
Freq. Margin Margin
Line Reading Limit Reading Limit
MHz dB dB
dBuV dBuV dBuV dBuV

0.20 Live 46.0 63.6 17.6 37.1 53.6 16.5
3.80 Live 32.0 56.0 24.0 27.5 46.0 18.5
0.21 Neutral 45.2 63.2 18.0 36.5 53.2 16.7
3.60 Neutral 33.4 56.0 22.6 25.8 46.0 20.2

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

7 Radiation Emission Test
Product Name: IPOD WIRELESS SPEAKER
Test Requirement: FCC Part15 Paragraph 15.249
Test Method: Based on FCC Part15 Paragraph 15.31 and Paragraph 15.33
Test Date: June 20, 2008
Frequency Range: 30MHz to 10GHz
Measurement Distance: 3m
Detector: Peak for pre-scan (120kHz resolution bandwidth)
Quasi-Peak if maximised peak within 6dB of limit

7.1 Test Equipment

Please refer to Section 5 this report.

7.2 Measurement Uncertainty

All measurements involve certain levels of uncertainties, especially in the field of EMC. The
factors contributing to uncertainties are spectrum analyzer, cable loss, antenna factor
calibration, antenna directivity, antenna factor variation with height, antenna phase centre
variation, antenna factor frequency interpolation, measurement distance variation, site
imperfections, mismatch (average), and system repeatability.

Based on ANSI C63.4: 2003, The Treatment of Uncertainty in EMC Measurements, the best
estimate of the uncertainty of a radiation emissions measurement at SEM. EMC Lab is +4.0
dB.

7.3 Test Procedure

1. Maximizing procedure was performed on the six (6) highest emissions to ensure EUT is
compliant with all installation combinations.
2. All data was recorded in the peak and average detection mode.
3. The EUT was under normal mode during the final qualification test and the configuration
was used to represent the worst case results.

4.According to the FCC Part 15 Paragraph 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 to the intentional radiator shall be
considered sufficient to comply with the provisions of this section. This product has a
permanent antenna, fulfill the requirement of this section.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

7.6 Corrected Amplitude & Margin Calculation

The Corrected Amplitude is calculated by adding the Antenna Factor and Cable Factor, and
subtracting the Amplifier Gain from the Amplitude reading. The basic equation is as follows:

Corr. Ampl. = Indicated Reading + Antenna Factor + Cable Factor - Amplifier Gain

The “Margin” column of the following data tables indicates the degree of compliance with the
applicable limit. For example, a margin of -7dBμV means the emission is 7dBμV below the
maximum limit for Class B. The equation for margin calculation is as follows:
Margin = Corr. Ampl. – Class B Limit

7.7 Summary of Test Results

According to the data in section 7.10, the EUT complied with the FCC Part15 Paragraph
15.249 standards.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

7.8 EUT Operating Condition

Same as section 6.4 of this report.

7.9 Radiated Emissions Limit

A. FCC Part 15 subpart C Paragraph 15.249 Limit

Field Strength of Field Strength of
Fundamental Frequency Fundamental Harmonics
mV/m dBuV/m uV/m dBuV/m
902-928MHz 50 94 500 54
2400-2483.5 MHz 50 94 500 54
5725-5875 MHz 50 94 500 54
24.0-24.25GHz 250 108 2500 68

Note: (1) RF Voltage(dBuV)=20 log RF Voltage(uV)
(2) Distance refers to the distance in meters between the measuring instrument
antenna and the closed point of any part of the device or system.
(3)The emission limit in this paragraph is based on measurement instrumentaion
employing an average detector.Measurement using instrumentation with a peak
detector function,corresponding to 20dB above the maximum permitted average limit.
(4) Above 1GHz,do a Peak and average measurements for all emissions,Limit for
peak is 94dBuvV/m,According to Part15.35(b) and average is 54BuvV/m.
B. Frequencies in restricted band are complied to limit on Paragraph 15.209

Frequency(MHZ) Distance(m) Field strength(dBuV/m)
30-88 3 40.0
88-216 3 43.5
216-960 3 46.0
Above 960 3 54.0

Note: (1) RF Voltage(dBuV)=20 log RF Voltage(uV)
(2) In the Above Table,the tighter limit applies at the band edges.
(3) Distance refers to the distance in meters between the measuring instrument
antenna.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

7.10 Radiated Emissions Test Result

Formula of conversion factors: the field strength at 3m was established by adding
The meter reading of the spectrum analyzer (which is set to read in units of dBuV)
To the antenna correction factor supplied by the antenna manufacturer. The antenna
Correction factors are stared in terms of dB. The gain of the pressletor was accounted
For in the spectrum analyser meter reading.
Example:
Freq(MHz) Meter Reading +ACF=FS
33 20dBuV+10.36dB=30.36dBuV/m @3m
Radiated Emission Test Data
Test Voltage: 120VAC
Test Mode: TX On
Temperature: 24 °C
Humidity: 52%RH
Test Result: PASS
Remarks: 30-1000MHz radiation test no significant emissions above the equipment noise floor
were detected.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

1GHz-10GHz Radiated Emission Data
Emission FCC 15 Subpart Antenna Turntable
Frequency Antenna Margin
Detector Level C Limit Height Angle
(MHz) Polarization (dB)
(dBuV/m) (dBuV/m) (m) (°)

915.00 AV Vertical 72.32 94.00 21.68 1.5 90
915.00 AV Horizontal 71.15 94.00 22.85 1.5 120
1830.00 AV Vertical 35.68 54.00 18.32 1.5 45
2745.00 AV Vertical 34.44 54.00 19.56 1.5 90
3660.00 AV Vertical 35.79 54.00 18.21 1.5 90
4575.00 AV Vertical 36.02 54.00 17.98 1.5 120
5490.00 AV Vertical 34.88 54.00 19.12 1.5 45
6405.00 AV Vertical 36.43 54.00 17.57 1.5 120
7320.00 AV Vertical 34.76 54.00 19.24 1.5 180
8235.00 AV Vertical 35.99 54.00 18.01 1.5 90
9150.00 AV Vertical 35.84 54.00 18.16 1.5 60
1830.00 AV Horizontal 35.45 54.00 18.55 1.5 180
2745.00 AV Horizontal 34.05 54.00 19.95 1.5 45
3660.00 AV Horizontal 35.62 54.00 18.38 1.5 45
4575.00 AV Horizontal 35.84 54.00 18.16 1.5 180
5490.00 AV Horizontal 34.75 54.00 19.25 1.5 45
6405.00 AV Horizontal 35.95 54.00 18.05 1.5 60
7320.00 AV Horizontal 34.71 54.00 19.29 1.5 120
8235.00 AV Horizontal 35.92 54.00 18.08 1.5 90
9150.00 AV Horizontal 35.61 54.00 18.39 1.5 90
915.00 PK Vertical 85.32 114.00 28.68 1.5 90
915.00 PK Horizontal 83.15 114.00 30.85 1.5 90
1830.00 PK Vertical 40.25 74.00 33.75 1.5 120
2745.00 PK Vertical 41.17 74.00 32.83 1.5 120
3660.00 PK Vertical 41.58 74.00 32.42 1.5 90
4575.00 PK Vertical 42.66 74.00 31.34 1.5 90
5490.00 PK Vertical 41.34 74.00 32.66 1.5 45
6405.00 PK Vertical 41.62 74.00 32.38 1.5 60
7320.00 PK Vertical 42.47 74.00 31.53 1.5 60
8235.00 PK Vertical 41.60 74.00 32.40 1.5 100
9150.00 PK Vertical 42.59 74.00 31.41 1.5 120
1830.00 PK Horizontal 40.22 74.00 33.78 1.5 45
2745.00 PK Horizontal 41.05 74.00 32.95 1.5 90

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

3660.00 PK Horizontal 41.43 74.00 32.57 1.5 180
4575.00 PK Horizontal 42.56 74.00 31.44 1.5 120
5490.00 PK Horizontal 41.33 74.00 32.67 1.5 45
6405.00 PK Horizontal 41.54 74.00 32.46 1.5 180
7320.00 PK Horizontal 42.36 74.00 31.64 1.5 120
8235.00 PK Horizontal 41.48 74.00 32.52 1.5 90
9150.00 PK Horizontal 42.37 74.00 31.63 1.5 90

Note: Above 1GHz,do a Peak and average measurements for all emissions,Limit for peak is
74dBuvV/m,According to Part15.35(b) and average is 54BuvV/m.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

8 Band Edge
8.1 Test Equipment

Please refer to Section 5 this report.

8.2 Test Procedure

1. The EUT, peripherals were put on the turntable which table size is 1mX1.5m, table high
0.8m. All set up is according to ANSI C63.4: 2003.
2. The bandwidth of the fundamental frequency was measure by spectrum analyser with
120kHz RBW and 300kHz VBW. The 20dB bandwidth is defined as the total spectrum the
power of which is higher than peak power 20dB.

8.3 Band Edge

Requirements: FCC 15.249(d), the emission power at the START and STOP frequencies shall
be at least 50dB below the level of the fundamental or to the general radiated emission limits
in FCC 15.209.

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Wonders Industrial Development (Shenzhen) Co., Ltd. FCC ID: WC2DS-456

8.4 Band Edge Test Result

Product Name: IPOD WIRELESS SPEAKER
Test Item: Band Edge Test
Test Voltage: 120VAC
Test Mode: TX On
Temperature: 24 °C
Humidity: 52%RH

17:17:40 Jun 20, 2008 R T Marker
Mkr2 Δ 292.5 kHz
Ref 107 dBμV Atten 10 dB -0.363 dB
Select Marker
#Avg
1 2 3 4
Log *
10
1
dB/ Marker Trace
Auto 1 2 3
2R 2

Readout
Dl Frequency
53.4
dBμV
Function
Off
Center 914.5 MHz Span 1 MHz
Res BW 120 kHz VBW 300 kHz Sweep 8 ms (401 pts) Marker Table
Marker Trace Type X Axis Amplitude On Off
1 (1) Freq 914.5000 MHz 73.36 dBμV
2R (1) Freq 914.3550 MHz 53.07 dBμV
2Δ (1) Freq 292.5 kHz -0.363 dB Marker All Off

More
2 of 2

Note: (1) The field strength of any emissions which appear outside of this band shall not
exceed the general radiated emission limits in Section 15.209.
(2) This device does meet the FCC requirement.

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Document Created: 2008-06-23 09:31:30
Document Modified: 2008-06-23 09:31:30

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