Test Report

FCC ID: RNKDS-2101

Test Report

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FCCID_536486

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

TABLE OF CONTENTS
GENERAL INFORMATION.......................................................................................................................................3
PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................................................3
OBJECTIVE ...................................................................................................................................................................3
RELATED SUBMITTAL(S)/GRANT(S).............................................................................................................................3
TEST METHODOLOGY ..................................................................................................................................................3
TEST FACILITY .............................................................................................................................................................3
SYSTEM TEST CONFIGURATION..........................................................................................................................4
JUSTIFICATION .............................................................................................................................................................4
BLOCK DIAGRAM/SCHEMATICS ...................................................................................................................................4
EQUIPMENT MODIFICATIONS .......................................................................................................................................4
CONFIGURATION OF TEST SETUP .................................................................................................................................5
BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................5
SUMMARY OF TEST RESULTS ...............................................................................................................................6
§15.203 - ANTENNA REQUIREMENT......................................................................................................................7
STANDARD APPLICABLE ..............................................................................................................................................7
§15.205, §15.209, §15.227(A) - RADIATED EMISSIONS TEST ..............................................................................8
MEASUREMENT UNCERTAINTY ....................................................................................................................................8
EUT SETUP ..................................................................................................................................................................8
TEST RECEIVER SETUP .................................................................................................................................................8
TEST EQUIPMENT LIST AND DETAILS ...........................................................................................................................9
CORRECTED AMPLITUDE & MARGIN CALCULATION ...................................................................................................9
TEST RESULTS SUMMARY ............................................................................................................................................9
TEST DATA ................................................................................................................................................................10
DUTY CYCLE .............................................................................................................................................................11
§15.227(B) - OUT OF BAND EMISSION .................................................................................................................12

Report # RSZ04123103 Page 2 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

GENERAL INFORMATION
Product Description for Equipment Under Test (EUT)
The EASTERN TIMES TECHNOLOGY CO., LTD’s product, model number: DS-2101 or the "EUT" as
referred to in this report is a Transmitter of Mini RF Wireless Optical Mouse Transmitter. The EUT is
measured approximately 9.1cm L x 4.6cm W x 3.0cm H. rated input voltage: DC 3V battery.

* The test data gathered are from production sample, serial number: 2009050000001, provided by the manufacturer.

Objective
This Type approval report is prepared on behalf of EASTERN TIMES TECHNOLOGY CO., LTD in
accordance with Part 2, Subpart J, and Part 15, Subparts A , B and C of the Federal Communication
Commissions rules.

The objective is to determine compliance with FCC rules, sec 15.203, 15.205, 15.209 and sec 15.227.

Related Submittal(s)/Grant(s)
No Related Submittals.

Test Methodology
All measurements contained in this report were conducted with ANSI C63.4-2003, American National
Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and
Electronic Equipment in the range of 9 kHz to 40 GHz. All radiated and conducted emissions
measurement was performed at Bay Area Compliance Laboratory Corp. The radiated testing was
performed at an antenna-to-EUT distance of 3 meters.

Test Facility
The Test site used by Bay Area Compliance Lab Corp. (ShenZhen) to collect radiated and conducted
emission measurement data is located in the 6/F, the 3rd Phase of WanLi Industrial Building, ShiHua
Road, FuTian Free Trade Zone, ShenZhen, Guangdong 518038, P.R.China.

Test site at Bay Area Compliance Lab Corp. (ShenZhen) has been fully described in reports submitted to
the Federal Communication Commission (FCC). The details of these reports have been found to be in
compliance with the requirements of Section 2.948 of the FCC Rules on November 04, 2004. The facility
also complies with the radiated and AC line conducted test site criteria set forth in ANSI C63.4-2003.

The Federal Communications Commission has the reports on file and is listed under FCC Registration No.:
382179. The test site has been approved by the FCC for public use and is listed in the FCC Public Access
Link (PAL) database.

Report # RSZ04123103 Page 3 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

SYSTEM TEST CONFIGURATION
Justification
The system was configured for testing in a typical fashion (as normally used by a typical user).

Block Diagram/Schematics
N/A.

Equipment Modifications
BACL has not done any modification on the EUT.

Report # RSZ04123103 Page 4 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

Configuration of Test Setup

Mini RF Wireless Optical Mouse Transmitter

Block Diagram of Test Setup

1.0 Meter
EUT

1.5 Meter
Non-conduction table
80 cm above Ground Plane
1.5 Meter

Report # RSZ04123103 Page 5 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

SUMMARY OF TEST RESULTS
Results reported relate only to the product tested, serial number: 2009050000001.

FCC RULES DESCRIPTION OF TEST RESULT
§15.203 Antenna requirement Pass
§15.205 Restricted Band of operation Pass
§15.209 Radiated Emission Limit Pass
§15.227(a) Field Strength Pass
§15.227(b) Out of Band Emission Pass

Report # RSZ04123103 Page 6 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

§15.203 - ANTENNA REQUIREMENT
Standard Applicable
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 or of an
antenna that uses a unique coupling 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.

Test Result: Pass

Report # RSZ04123103 Page 7 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

§15.205, §15.209, §15.227(a) - RADIATED EMISSIONS TEST
Measurement Uncertainty
All measurements involve certain levels of uncertainties, especially in 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 center variation, antenna factor frequency
interpolation, measurement distance variation, site imperfections, mismatch (average), and system
repeatability.

Based on NIS 81, The Treatment of Uncertainty in EMC Measurements, the best estimate of the
uncertainty of a radiation emissions measurement at BACL is +4.0 dB.
The fundamental data was recorded in average detection mode: set the VBW AVE on, then record the
data.

EUT Setup
The radiated emission tests were performed in the open area 3-meter chamber, using the setup accordance
with the ANSI C63.4-2003. The specification used was the FCC Part 15 Subpart C section 15.227 limits.

Test Receiver Setup
According to FCC Rules, 47 CFR 15.33, the EUT emissions were investigated from 27 to 1000 MHz.

During the radiated emission test, the test Receiver was set with the following configurations:

Frequency Range RBW Video B/W
Below 30 MHz 10 kHz 10 kHz
30 – 1000 MHz 100 kHz 100 kHz
Above 1000 MHz 1 MHz 1 MHz

Report # RSZ04123103 Page 8 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

Test Equipment List and Details

Calibration Calibration
Manufacturer Description Model Serial Number Due Date
Date
Rohde & Schwarz Test Receiver ESCI 100035 2004-9-15 2005-9-14
HP Amplifier 8447E 1937A01046 2004-9-1 2005-8-31
Sunol Sciences Bilog Antenna JB1 A040904-2 2004-4-19 2005-4-18

* Statement of Traceability: BACL attests that all calibrations have been performed per the NVLAP
requirements, traceable to NIST.

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 -7dB means the emission is 7dB below the maximum limit. The equation
for margin calculation is as follows:

Margin = Corr. Ampl. - Limit

Test Results Summary
According to the data in the following table, the EUT complied with the FCC PART 15.227, with the
worst margin reading of:

-12.6 dB at 270.450 MHz in the Horizontal polarization.

Report # RSZ04123103 Page 9 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

Test Data
Environmental Conditions

Temperature: 22° C
Relative Humidity: 58%
ATM Pressure: 1016mbar

Testing was performed by Lisa Zhu on 2005-01-11.

Test Mode: Transmitting

CORRECTED
INDICATED TABLE ANTENNA CORRECTION FACTOR FCC PART 15.227&15.209
AMPLITUDE
Frequency Ampl. Angle Height Polar Antenna Cable Amp. Corr. Ampl. Limit Margin
dBµV/ Remark
MHz dBµV/m Degree Meter H/ V dB/m dB dB dBµV/m dB
m
270.450 47.32 154 3.1 H 12.3 1.4 27.6 33.4 46.0 -12.6 HARMONICS
243.405 45.53 61 3.1 H 12.3 1.3 27.7 31.4 46.0 -14.6 HARMONICS
270.450 44.71 180 1.0 V 12.3 1.4 27.6 30.8 46.0 -15.2 HARMONICS
297.495 42.41 45 1.0 H 13.8 1.6 27.6 30.2 46.0 -15.8 HARMONICS
189.315 41.75 60 3.0 H 11.7 1.3 28.1 26.7 43.5 -16.9 HARMONICS
243.405 42.69 45 1.2 V 12.3 1.3 27.7 28.6 46.0 -17.4 HARMONICS
81.135 41.56 90 1.2 V 8.4 0.9 28.7 22.1 40.0 -17.9 HARMONICS
324.540 39.27 60 1.2 H 14.3 1.7 27.7 27.6 46.0 -18.4 HARMONICS
54.090 38.90 45 1.2 V 8.5 0.7 28.7 19.4 40.0 -20.6 HARMONICS
27.045 54.94 270 1.0 V 24.1 0.6 28.8 50.8 100.0 -49.2 FUND(PK)
27.045 50.78 60 3.0 H 24.1 0.6 28.8 46.6 100.0 -53.4 FUND(PK)
27.045 AVE=PEAK*DUTY CYCLE=345.94µV/m *0.461=159.48µV/m 44.1 80.0 -35.9 FUND(AV)
27.045 AVE=PEAK*DUTY CYCLE=557.19µV/m *0.461=256.86µV/m 48.2 80.0 -31.8 FUND(AV)

Test Result: Pass

Report # RSZ04123103 Page 10 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

Duty Cycle
The result has been complied with the 15.227, see the following plot:

RBW 10 kHz Delta 1 [T1 ]
* VBW 10 kHz 0.09 dB
Ref 97 dBµV * Att 10 dB SWT 300 ms 73.800000 ms

Marker 1 [T1 ]
90 43.99 dBµV
46.800000 ms A

1 PK
80
VIEW

70

60
PS

50
1 1

40

30

20

10

0

Center 27.045 MHz 30 ms/

A
Date: 25.MAR.2005 11:17:42

RBW 10 kHz Delta 1 [T1 ]
* VBW 10 kHz -0.20 dB
Ref 97 dBµV * Att 10 dB SWT 300 ms 160.200000 ms

Marker 1 [T1 ]
90 43.99 dBµV
46.800000 ms A

1 PK
80
VIEW

70

60
PS

50
1 1

40

30

20

10

0

Center 27.045 MHz 30 ms/

A
Date: 25.MAR.2005 11:14:33

Duty cycle = TX On/(TX Off+TX On)
= 73.8/160.2
= 46.1%
Report # RSZ04123103 Page 11 of 12 FCC PART 15.227 Report

EASTERN TIMES TECHNOLOGY CO., LTD FCC ID: RNKDS-2101

§15.227(b) - Out of Band Emission
The result has been complied with the 15.227(b), see the following plot:

Frequency Emission Limit
MHz dBµV/m dBµV/m
26.96 15.10 40
27.28 13.88 40

Test Result: Pass

* RBW 9 kHz Marker 1 [T1 ]
* VBW 10 kHz 13.88 dBµV
Ref 97 dBµV * Att 10 dB * SWT 300 ms 27.280000000 MHz

90
A

1 PK
80
VIEW

70

60
PS

50

40

30

20
1

10

0

Start 26.9 MHz 40 kHz/ Stop 27.3 MHz

Date: 19.APR.2005 11:23:46

* RBW 9 kHz Marker 1 [T1 ]
* VBW 10 kHz 15.10 dBµV
Ref 97 dBµV * Att 10 dB * SWT 300 ms 26.960000000 MHz

90
A

1 PK
80
VIEW

70

60
PS

50

40

30

20
1

10

0

Start 26.9 MHz 40 kHz/ Stop 27.3 MHz

Date: 19.APR.2005 11:23:11

Report # RSZ04123103 Page 12 of 12 FCC PART 15.227 Report

Document Created: 2005-04-27 10:27:48
Document Modified: 2005-04-27 10:27:48

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