REVISED TEST REPORT

FCC ID: UM7-MWFM03

Test Report

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FCCID_832570

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART C and Canadian RSS-210 Issue 6 REQUIREMENT OF Mobile FM Transmitter MODEL No.: 1410221 BRAND NAME: CENTRiOS FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 REPORT NO: E0705070F ISSUE DATE: May 28, 2007 Prepared for Minwa(China) Electronics Co.,Ltd. Minwa(Shenzhen) Industrial Park, Fu Shing Au Village, Ping Hu Town, Long Gang District, Shenzhen 518111, China Prepared by SHENZHEN EMTEK CO., LTD Bldg 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China TEL: 86-755-26954280 FAX: 86-755-26954282 Page 1 of 1

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 VERIFICATION OF COMPLIANCE Applicant: Minwa(China) Electronics Co.,Ltd. Minwa(Shenzhen) Industrial Park, Fu Shing Au Village, Ping Hu Town, Long Gang District, Shenzhen 518111, China Product Description: Mobile FM Transmitter Brand Name: CENTRiOS Model Number: 1410221 Serial Number: N/A File Number: E0705070F Date of Test: May 15, 2007 to May 28, 2007 We hereby certify that: The above equipment was tested by SHENZHEN EMTEK CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.4 (2003) and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.239, also, the model complies with Canadian RSS-210 Issue 6 standard. The test results of this report relate only to the tested sample identified in this report. Approved By David Lee / Q.A. Manager SHENZHEN EMTEK CO., LTD. Page 2 of 2

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Table of Contents 1. GENERAL INFORMATION ................................................................................................. 4 1.1 PRODUCT DESCRIPTION...........................................................................................................................4 1.2 RELATED SUBMITTAL(S) / GRANT (S) .....................................................................................................4 1.3 TEST METHODOLOGY ..............................................................................................................................4 1.4 SPECIAL ACCESSORIES ............................................................................................................................4 1.5 EQUIPMENT MODIFICATIONS ..................................................................................................................4 1.6 TEST FACILITY ........................................................................................................................................5 2. SYSTEM TEST CONFIGURATION .................................................................................... 6 2.1 EUT CONFIGURATION .............................................................................................................................6 2.2 EUT EXERCISE ........................................................................................................................................6 2.3 TEST PROCEDURE ....................................................................................................................................6 2.4 LIMITATION .............................................................................................................................................6 2.5 CONFIGURATION OF TESTED SYSTEM .....................................................................................................8 3. SUMMARY OF TEST RESULTS ......................................................................................... 9 4. DESCRIPTION OF TEST MODES ...................................................................................... 9 5. RADIATED EMISSION TEST ............................................................................................10 5.1 MEASUREMENT PROCEDURE .................................................................................................................10 5.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .......................................................................11 5.3 MEASUREMENT EQUIPMENT USED: ......................................................................................................12 5.4 MEASUREMENT RESULT ........................................................................................................................12 5.5 RADIATION MEASUREMENT PHOTOS .....................................................................................................18 6. OCCUPIED BANDWIDTH..................................................................................................19 6.1 MEASUREMENT PROCEDURE .................................................................................................................19 6.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .......................................................................19 6.3 MEASUREMENT EQUIPMENT USED: ......................................................................................................19 6.4 MEASUREMENT RESULTS:.....................................................................................................................19 6.5 RADIATED EMISSION SETUP PHOTOS.....................................................................................................20 PHOTOGRAPHS OF EUT.................................................................................................................23 Page 3 of 3

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 1. GENERAL INFORMATION 1.1 Product Description The Minwa(China) Electronics Co.,Ltd. Model: 1410221 (referred to as the EUT in this report). The EUT is a car using stereo FM transmitter, with a high quality stereo FM transmitter IC inside, The actual tuning Controls can be manually adjusted to from 88.1 MHz to 107.9MHz with total channel spacing of 200KHz, All 15 channels: 88.1, 88.3, 88.5, 88.7, 88.9, 89.1, 89.3, 98.0, 106.7, 106.9, 107.1, 107.3, 107.5,107.7,107.9MHz examined. A major technical descriptions of EUT is described as following: A). Operation Frequency: 88.1MHz~107.9MHz B). Antenna Designation: Internal C). Power Supply: By Car Charger or 12.0VDC D). Channel Spacing: 200KHz 1.2 Related Submittal(s) / Grant (s) This submittal(s) (test report) is intended for FCC ID: UM7-MWFM03 and IC ID: 7144B-MWFM03 filing to comply with Section 15.239 of the FCC Part 15, Subpart C Rules. 1.3 Test Methodology Both conducted and radiated testing was performed according to the procedures in ANSI C63.4 (2003). Radiated testing was performed at an antenna to EUT distance 3 meters. 1.4 Special Accessories Not available for this EUT intended for grant. 1.5 Equipment Modifications Not available for this EUT intended for grant. Page 4 of 4

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 1.6 Test Facility Site Description EMC Lab. : Accredited by CNAL, 2005.11.02 The certificate is valid until 2010.11 The Laboratory has been assessed and proved to be in compliance with CNAL/AC01:2003(identical to ISO/IEC17025:1999) The Certificate Registration Number is L2291 Accredited by TUV Rheinland Guangzhou, 2005.1 The certificate is valid until 2008.2 The Laboratory has been assessed according to the requirements ISO/IEC 17025:1999 Accredited by FCC, July 07, 2005 The Certificate Registration Number is 709623. Accredited by Industry Canada, August 30, 2005 The Certificate Registration Number is 46405-4480 Name of Firm : SHENZHEN EMTEK CO., LTD Site Location : Bldg 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Page 5 of 5

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 2. System Test Configuration 2.1 EUT Configuration The EUT configuration for testing is installed on RF field strength measurement to meet the Commissions requirement and operating in a manner which intends to maximize its emission characteristics in a continuous normal application. 2.2 EUT Exercise The Transmitter was operated in the normal operating mode. The Tx frequency was 88.1MHz~107.9MHz. 2.3 Test Procedure 2.3.1 Conducted Emissions (Not apply in the report) The EUT is a placed on as turn table which is 0.8 m above ground plane. According to the requirements in Section 13.1.4.1 of ANSI C63.4-2003.Conducted emissions from the EUT measured in the frequency range between 0.15 MHz and 30MHz using CISPR Quasi-Peak and average detector mode. 2.3.2 Radiated Emissions The EUT is a placed on as turn table which is 0.8 m above ground plane. The turn table shall rotate 360 degrees to determine the position of maximum emission level. EUT is set 3m away from the receiving antenna which varied from 1m to 4m to find out the highest emission. And also, each emission was to be maximized by changing the polarization of receiving antenna both horizontal and vertical. In order to find out the max. emission, the relative positions of this hand-held transmitter(EUT) was rotated through three orthogonal axes according to the requirements in Section 13.1.4.1 of ANSI C63.4-2003. 2.4 Limitation (1) Radiated Emission (b) The field strength of any emissions within the permitted 200kHz band shall not exceed 250 microvolts/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. (c) 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. Remark: The limit for average field strength dBuv/m for the fundamental frequency=48.0 dBuv/m. And the limit for peak field strength dBuv/m for the fundamental frequency=68.0 dBuv/m. Page 6 of 6

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Intentional Radiators general limit).as below. Frequency Field strength Distance(m) Field strength at 3m (MHz) μV/m dBμV/m 1.705-30 30 30 69.54 30-88 100 3 40 88-216 150 3 43.5 216-960 200 3 46 Above 960 500 3 54 (2) Occupied Bandwidth (a) Emissions from the intentional radiator shall be confined within a band 200kHz wide centered on the operation frequency, The 200kHz band shall lie wholly within the frequency range of 88.1-107.9MHz. Page 7 of 7

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 2.5 Configuration of Tested System Fig. 2-1 Configuration of Tested System Ipod Player FM Transmitter (EUT) Table 2-1 Equipment Used in Tested System Item Equipment Mfr/Brand Model/Type No. FCC ID Series No. Note Mobile FM 1. CENTRiOS 1410221 UM7-MWFM03 N/A EUT Transmitter 2. Ipod player Ipod A1136 N/A N/A 3. Radio sayin FM21 N/A N/A Note: (1) Unless otherwise denoted as EUT in『Remark』column , device(s) used in tested system is a support equipment. Page 8 of 8

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 3. Summary Of Test Results FCC Rules Description Of Test Result §15.239 Radiated Emission Compliant §15.239 Bandwidth Test Compliant 4. Description of test modes The EUT (Mobile FM Transmitter) has been tested under normal operating condition. Three channels of EUT (the lowest channel, the middle channel and the highest channel) have been chosen for testing under Normal Operating condition. In this report, all the measured datum of the three channels have been reported. No software used to control the EUT for staying in continuous transmitting mode for testing. 1. For lowest channel : 88.1MHz 2. For middle channel : 98.0MHz 3. For highest channel: 107.9MHz Page 9 of 9

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 5. Radiated Emission Test 5.1 Measurement Procedure 1 The EUT was placed on a turn table which is 0.8m above ground plane. 2. Maximum procedure was performed on the six highest emissions to ensure EUT compliance. 3. And also, each emission was to be maximized by changing the polarization of receiving antenna both horizontal and vertical. 4. Repeat above procedures until all frequency measured were complete. Page 10 of 10

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 5.2 Test SET-UP (Block Diagram of Configuration) (A) Radiated Emission Test Set-Up, Frequency Below 30MHz Turntable 3m EUT Test 0.8 m Receiver Ground Plane Coaxial Cable (B) Radiated Emission Test Set-Up, Frequency Below 1000MHz 3m Turntable 1m to 4m EUT Spectrum Analyzer 0.8m Ground Plane Coaxial Cable Page 11 of 11

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 5.3 Measurement Equipment Used: Open Area Test Site # 3 EQUIPMENT MFR MODEL SERIAL LAST CAL DUE. TYPE NUMBER NUMBER CAL. Spectrum Analyzer ANRITSU MS2661C 6200140915 05/29/2006 05/29/2007 EMI Test Receiver Rohde & Schwarz ESCS30 828985/018 05/29/2006 05/29/2007 Pre-Amplifier HP 8447D 2944A07999 05/29/2006 05/29/2007 Bilog Antenna Schwarzbeck VULB9163 142 05/29/2006 05/29/2007 Loop Antenna ARA PLA-1030/B 1029 05/29/2006 05/29/2007 5.4 Measurement Result A. Fundamental Radiated Emission Data Operation Mode: Transmitting Mode Test Date : May 23, 2007 Test Item: Fundamental Radiated Emission Data Temperature : 28 ℃ Fundamental Frequency: Lowest channel Humidity : 65 % Test Result: PASS Test By: Andy Peak Measurement Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 88.10 V 35.76 68.00 -32.24 Peak 88.10 H 36.48 68.00 -31.52 Peak Average Measurement Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 88.10 V 31.49 48.00 -16.51 AV 88.10 H 32.16 48.00 -15.84 AV Note: (1) All Readings are Peak Value. (2) Emission Level= Reading Level+Probe Factor +Cable Loss (3) The average measurement was not performed when the peak measured data under the limit of average detection. Page 12 of 12

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Operation Mode: Transmitting Mode Test Date : May 23, 2007 Test Item: Fundamental Radiated Emission Data Temperature : 28 ℃ Fundamental Frequency: Middle channel Humidity : 65 % Test Result: PASS Test By: Andy Peak Measurement Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 98.0 V 32.158 68.00 -35.84 Peak 98.0 H 33.488 68.00 -34.51 Peak Average Measurement Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 98.0 V 27.780 48.00 -20.22 AV 98.0 H 28.900 48.00 -19.10 AV Note: (1) All Readings are Peak Value. (2) Emission Level= Reading Level+Probe Factor +Cable Loss (3) The average measurement was not performed when the peak measured data under the limit of average detection. Page 13 of 13

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Operation Mode: Transmitting Mode Test Date : May 23, 2007 Test Item: Fundamental Radiated Emission Data Temperature : 28 ℃ Fundamental Frequency: Highest channel Humidity : 65 % Test Result: PASS Test By: Andy Peak Measurement Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 107.90 V 30.48 68.00 -37.52 Peak 107.90 H 32.50 68.00 -35.50 Peak Average Measurement Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 107.90 V 27.91 48.00 -20.09 AV 107.90 H 29.40 48.00 -18.60 AV Note: (1) All Readings are Peak Value. (2) Emission Level= Reading Level+Probe Factor +Cable Loss (3) The average measurement was not performed when the peak measured data under the limit of average detection. Page 14 of 14

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 B. General Radiated Emission Data Operation Mode: Transmitting Mode Test Date : May 23, 2007 Test Item: General Radiated Emission Data Temperature : 28 ℃ Fundamental Frequency: Lowest channel Humidity : 65 % Test Result: PASS Test By: Andy Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 176.200 V 36.78 43.50 -6.72 Peak 264.300 V 34.17 46.00 -11.83 Peak 352.400 V 36.38 46.00 -9.62 Peak 440.400 V 32.14 46.00 -13.86 Peak 528.500 V 32.25 46.00 -13.75 Peak 616.690 V 31.85 46.00 -14.15 Peak 176.200 H 25.75 43.60 -17.85 Peak 264.300 H 28.68 46.00 -17.32 Peak 352.400 H 42.11 46.00 -3.89 Peak 440.400 H 42.63 46.00 -3.37 Peak 528.500 H 36.03 46.00 -9.97 Peak 616.690 H 34.50 46.00 -11.50 Peak Note: Emission Level= Reading Level+ Probe Factor +Cable Loss Page 15 of 15

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Operation Mode: Transmitting Mode Test Date : May 23, 2007 Test Item: General Radiated Emission Data Temperature : 28 ℃ Fundamental Frequency: Middle channel Humidity : 65 % Test Result: PASS Test By: Andy Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 196.20 V 25.14 43.50 -18.36 Peak 294.30 V 33.72 46.00 -12.28 Peak 392.40 V 35.35 46.00 -10.65 Peak 490.50 V 36.95 46.00 -9.05 Peak 588.60 V 29.92 46.00 -16.08 Peak 686.70 V 33.92 46.00 -12.08 Peak 196.20 H 24.36 43.60 -19.24 Peak 294.30 H 31.40 46.00 -14.60 Peak 392.40 H 42.77 46.00 -3.23 Peak 490.50 H 39.72 46.00 -6.28 Peak 588.60 H 35.80 46.00 -10.20 Peak 686.70 H 33.14 46.00 -12.86 Peak Note: Emission Level= Reading Level+ Probe Factor +Cable Loss Page 16 of 16

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Operation Mode: Transmitting Mode Test Date : May 23, 2007 Test Item: General Radiated Emission Data Temperature : 28 ℃ Fundamental Frequency: Highest channel Humidity : 65 % Test Result: PASS Test By: Andy Freq. Ant.Pol. Emission Level Limit 3m Margin Note (MHz) H/V (dBuV) (dBuV/m) (dB) 215.80 V 30.70 43.50 -12.80 Peak 323.70 V 38.63 46.00 -7.37 Peak 431.60 V 32.63 46.00 -13.37 Peak 539.50 V 30.48 46.00 -15.52 Peak 647.40 V 34.99 46.00 -11.01 Peak 755.30 V 32.14 46.00 -13.86 Peak 215.80 H 23.45 43.60 -20.15 Peak 323.70 H 37.51 46.00 -8.49 Peak 431.60 H 42.70 46.00 -3.30 Peak 539.50 H 35.28 46.00 -10.72 Peak 647.40 H 34.10 46.00 -11.90 Peak 755.30 H 32.81 46.00 -13.19 Peak Note: Emission Level= Reading Level+ Probe Factor +Cable Loss Page 17 of 17

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 5.5 Radiation Measurement Photos Page 18 of 18

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 6. Occupied Bandwidth 6.1 Measurement Procedure 1. The EUT was placed on a turn table which is 0.8m above ground plane. 2. Set EUT as normal operation 3. Set SPA Center Frequency = fundamental frequency , RBW = 10KHz, ,VBW= 30KHz 4. Set SPA Max hold. Mark peak. Note: The EUT can be connected to Ipod Player. The input signal of EUT is controlled by Ipod Player. So the volume control of Ipod Player was set to maximum during the test. It means that the test was performed with the maximum audio input. 6.2 Test SET-UP (Block Diagram of Configuration) Same as 4.2 Radiated Emission Measurement. 6.3 Measurement Equipment Used: Same as 4.2 Radiated Emission Measurement. 6.4 Measurement Results: The field strength of any emissions which appear outside of this band shall not exceed the general radiated emission limits in section 15.209. Refer to attached data chart. Page 19 of 19

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 6.5 Radiated Emission Setup Photos Page 20 of 20

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Band Width Test Data Page 21 of 21

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Page 22 of 22

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 APPENDIX 1 PHOTOGRAPHS OF EUT Page 23 of 23

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 UP View of EUT Bottom View of EUT Page 24 of 24

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Side of EUT Internal of EUT Page 25 of 25

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Internal of EUT Internal of EUT Page 26 of 26

SHENZHEN EMTEK CO., LTD. REPORT NO: E0705070F FCC ID: UM7-MWFM03 IC ID: 7144B-MWFM03 DATE: 05/27/2007 Internal of EUT Internal of EUT Page 27 of 27


Document Created: 2007-06-01 08:35:55
Document Modified: 2007-06-01 08:35:55
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