Test Report

FCC ID: TUVDS2233

Test Report

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FCCID_979566

Page 1 of 19

FCC CERTIFICATION
On Behalf of
Eastern Times Technology Co., Ltd.

Wireless Optical Mouse
Model No.: DS-2233(2233-B + 2218-A)

FCC ID: TUVDS2233

Prepared for : Eastern Times Technology Co., Ltd.
Address : Building 5, Penghua Industry Park, Heping Rd.(W),
Longhua, Shenzhen, Guangdong, 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 : ATE20081324
Date of Test : July 16-17, 2008
Date of Report : July 18, 2008

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 2 of 19

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. SUMMARY OF TEST RESULTS...............................................................................................6
4. RADIATED EMISSION FOR FCC PART 15 SECTION 15.227(B).......................................7
4.1. Block Diagram of Test Setup............................................................................................................... 7
4.2. The Field Strength of Radiation Emission Measurement Limits......................................................... 8
4.3. Configuration of EUT on Measurement .............................................................................................. 8
4.4. Operating Condition of EUT ............................................................................................................... 8
4.5. Test Procedure ..................................................................................................................................... 9
4.6. The Field Strength of Radiation Emission Measurement Results ..................................................... 10
5. FUNDAMENTAL RADIATED EMISSION FOR FCC PART 15 SECTION 15.227(A) ....11
5.1. Block Diagram of Test Setup............................................................................................................. 11
5.2. The Emission Limit For Section 15.227(a) ....................................................................................... 11
5.3. EUT Configuration on Measurement ................................................................................................ 12
5.4. Operating Condition of EUT ............................................................................................................. 12
5.5. Test Procedure ................................................................................................................................... 12
5.6. The Emission Measurement Result ................................................................................................... 13
6. BAND EDGES .............................................................................................................................14
6.1. The Requirement ............................................................................................................................... 14
6.2. EUT Configuration on Measurement ................................................................................................ 14
6.3. Operating Condition of EUT ............................................................................................................. 14
6.4. Test Procedure ................................................................................................................................... 14
6.5. The Measurement Result ................................................................................................................... 15

APPENDIX I ( TEST CURVES) (3 pages)

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 4 of 19

1. GENERAL INFORMATION

1.1.Description of Device (EUT)
EUT : Wireless Optical Mouse

Model Number : DS-2233(2233-B + 2218-A)

Power Supply : 3.0V DC (“AAA” batteries 2×)

Applicant : Eastern Times Technology Co., Ltd.
Address : Building 5, Penghua Industry Park, Heping Rd.(W),
Longhua, Shenzhen, Guangdong, China

Manufacturer : Eastern Times Technology Co., Ltd.
Address : Building 5, Penghua Industry Park, Heping Rd.(W),
Longhua, Shenzhen, Guangdong, China

Date of sample received : July 10, 2008
Date of Test : July 16-17, 2008

1.2.Description of Test Facility
EMC Lab : Accredited by TUV Rheinland Shenzhen

Listed by FCC
The Registration Number is 752051

Listed by Industry Canada
The Registration Number is 5077A-2

Accredited by China National Accreditation Committee
for Laboratories
The Certificate Registration Number is L3193

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: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 5 of 19

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 03.29.2009
EMI Test Receiver Rohde&Schwarz ESPI3 101526/003 03.29.2009
Spectrum Analyzer Agilent E7405A MY45115511 03.29.2009
Pre-Amplifier Rohde&Schwarz CBLU118354 3791 03.31.2009
0-01
Loop Antenna Schwarzbeck FMZB1516 1516131 03.28.2009
Bilog Antenna Schwarzbeck VULB9163 9163-323 03.29.2009
Horn Antenna Schwarzbeck BBHA9120D 9120D-655 12.20.2008
Horn Antenna Schwarzbeck BBHA9170 9170-359 10.10.2008
LISN Rohde&Schwarz ESH3-Z5 100305 03.29.2009
LISN Schwarzbeck NLSK8126 8126431 03.29.2009

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 6 of 19

3. SUMMARY OF TEST RESULTS

FCC Rules Description of Test Result
Section 15.207 Conducted Emission N/A
Section 15.209 Radiated Emission Compliant
Section 15.227(b)
Section 15.227(a) Fundamental Compliant
Radiated Emission
Section 15.227 Band Edge Compliant

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 7 of 19

4. RADIATED EMISSION FOR FCC PART 15 SECTION 15.227(B)

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

EUT

(EUT: Wireless Optical Mouse)

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 Optical Mouse)

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 8 of 19

4.2.The Field Strength of Radiation Emission Measurement Limits
4.2.1. The field strength of any emissions which appear outside of this band shall not
exceed the general radiated emission limits in section 15.209
Radiation Emission Measurement Limits According to Section 15.209(a)
Limit,
Frequency Field Strength of Field Strength of
Quasi-peak Value Quasi-peak Value The final measurement
(MHz)
(microvolts/m) (dBμV/m) in band 9-90kHz,
110-490kHz and
30 - 88 100 40 above 1000MHz is
performed with
88 - 216 150 43.5 Average detector.
Except those
216 - 960 200 46
frequency bands
mention above, the
final measurement for
frequencies below
Above 960 500 54 1000MHz is
performed with Quasi
Peak detector.

4.3.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.
4.3.1. Wireless Optical Mouse (EUT)
Model Number : DS-2233(2233-B + 2218-A)
Serial Number : N/A
Manufacturer : Eastern Times Technology 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.

4.4.3. Let the EUT work in TX modes and measure it.

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 9 of 19

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 C 63.4: 2003 on radiated
emission measurement.

The bandwidth of test receiver (R&S ESCS30) is set at 120kHz in 30-1000MHz.
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: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 10 of 19

4.6.The Field Strength of Radiation Emission Measurement Results
PASS.

The frequency range 30MHz to 1000MHz is investigated.

Date of Test: July 16, 2008 Temperature: 25oC
EUT: Wireless Optical Mouse Humidity: 52%
3.0V DC (“AAA” battery
Model No.: DS-2233(2233-B + 2218-A) Power Supply: 2×)
Test Mode: TX Test Engineer: Feng

Frequency Reading(dBμV/m) Factor Result(dBμV/m) Limits(dBμV/m) Margin(dB)
Polarization Corr.(dB)
(MHz) QP QP
QP QP
Horizontal 81.1335 20.83 11.87 32.70 40.00 -7.30
Horizontal 135.2130 18.63 14.67 33.30 43.50 -10.20
Horizontal 270.4714 17.20 18.20 35.40 46.00 -10.60
Horizontal 405.6671 13.88 22.62 36.50 46.00 -9.50
Horizontal 649.0259 12.10 26.00 38.10 46.00 -7.90
Vertical 54.0850 13.90 11.60 25.50 40.00 -14.50
Vertical 81.1365 22.23 11.87 34.10 40.00 -5.90
Vertical 135.2194 18.43 14.67 33.10 43.50 -10.40
Vertical 270.4835 12.80 18.20 31.00 46.00 -15.00
Vertical 405.6981 14.08 22.62 36.70 46.00 -9.30

Note:
1. The spectral diagrams in appendix 1 display the measurement of peak values with corrected factors counted.
2. 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: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 11 of 19

5. FUNDAMENTAL RADIATED EMISSION FOR FCC PART 15

SECTION 15.227(A)

5.1.Block Diagram of Test Setup
5.1.1.Block diagram of connection between the EUT and simulators

EUT

(EUT: Wireless Optical Mouse)

5.1.2.Anechoic Chamber Test Setup Diagram

3 METERS

Loop
Antenna EUT

Cable 1.0 METER
0.8 METER

GROUND PLANE

(EUT: Wireless Optical Mouse)

5.2.The Emission Limit For Section 15.227(a)
5.2.1.The field strength of any emission within this band shall not exceed
10,000microvolts/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 emission apply.

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 12 of 19

5.3.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.
5.3.1.Wireless Optical Mouse (EUT)
Model Number : DS-2233(2233-B + 2218-A)
Serial Number : N/A
Manufacturer : Eastern Times Technology Co., Ltd.

5.4.Operating Condition of EUT
5.4.1.Setup the EUT and simulator as shown as Section 5.1.

5.4.2.Turn on the power of all equipment.

5.4.3.Let the EUT work in TX mode and measure it.

5.5.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. A calibrated Loop antenna is used as receiving antenna. In order to
find the maximum emission levels, all of the interface cables must be manipulated
according to ANSI C 63.4: 2003 on radiated emission measurement.

The bandwidth of test receiver (R&S ESCS30) is set at 9kHz in 9kHz-30MHz.

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 13 of 19

5.6.The Emission Measurement Result

PASS.

Date of Test: July 17, 2008 Temperature: 25oC
EUT: Wireless Optical Mouse Humidity: 52%
3.0V DC (“AAA” battery
Model No.: DS-2233(2233-B + 2218-A) Power Supply: 2×)
Test Mode: TX Test Engineer: Feng

Fundamental Radiated Emissions

Test conditions Fundamental Frequency
27.045MHz
(dBμV/m)/(μV/m) (dBμV/m)/( μV/m)
Tnom(25°C) Vnom (3.0V DC) PEAK AV
45.40/186.21 42.80/138.04
Limit 100/100,000 80/10,000
Note: Measurement was performed with modulated signal with average detector and peak detector.

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 15 of 19

6.5.The Measurement Result

The EUT does meet the requirement.

The spectral diagrams attached in appendix 1.

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 16 of 19

APPENDIX I
(Test Curves)

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Page 19 of 19

* RBW 3 kHz
* VBW 10 kHz
Ref 70 dBµV * Att 0 dB * SWT 50 ms

70

A
60

1 PK
MAXH
50

TDF
40

30

20

3DB
10

0

-10

-20

-30

Start 26.96 MHz 32 kHz/ Stop 27.28 MHz

Date: 17.JUL.2008 09:04:55

FCC ID: TUVDS2233 ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20081324

Document Created: 2008-07-30 17:59:36
Document Modified: 2008-07-30 17:59:36

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