QPRST30Universal Digital FM Transmitter

Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 1 Universal Digital FM Transmitter AC Adapter Audio Cable and USB Cable Photo 2 Appearance View (Universal Digital FM Transmitter Power-Supply Holder for Car) Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 3 (Universal Digital FM Transmitter) Appearance View Photo 4 (Universal Digital FM Transmitter) Appearance View Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photos 5 (Power-Supply Holder for Car) Appearance View Photo 6 (Power-Supply Holder for Car) Appearance View Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 7 (AC Adapter) Appearance View Photo 8 (AC Adapter) Appearance View/Label Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 9 (AC Adapter) Appearance View Photo 10 (Universal Digital FM Transmitter) Remove Case Covers, Internal View

Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 ID Label Format and Location l Label Format Model: ST-30 I/P: DC5V/40mA(Max.) Frequency: 88.1MHz~106.7MHz FCC ID: QPRST30 MADE IN TAIWAN l Label Placement Location (Bottom Side of EUT) FCC Label Placement Location

Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 9 (AC Adapter) Appearance View Photo 10 (Universal Digital FM Transmitter) Remove Case Covers, Internal View Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 11 (Universal Digital FM Transmitter) Main Board, Front Side Photo 12 (Universal Digital FM Transmitter) Main Board, Back Side Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 13 (Power-Supply Holder for Car) Remove Cover, Internal View Photo 14 (Power-Supply Holder for Car) PCB View, Component Side Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 15 (Power-Supply Holder for Car) PCB View, Solder Side Photo 16 (AC Adapter) Remove Case Covers, Internal View Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter FCC ID. : QPRST30 Photo 17 (AC Adapter) Transformer & PCB View, Front Side Photo 18 (AC Adapter) Transformer & PCB View, Back Side

FCC ID.QPRST30Page 1 of 53 Audix Corporation Report No. EM-F930073 TEST REPORT FOR CERTIFICATION On Behalf of Jow Tong Technology Co., Ltd. Universal Digital FM Transmitter Model No. ST-30 FCC ID QPRST30 Prepared for :Jow Tong Technology Co., Ltd. 46, Lane 337, Chung Cheng Rd., Yung Kang, Tainan Hsien 710, Taiwan, R.O.C. Prepared by : Audix Corporation Technical Division EMC Department No. 53-11, Tin-Fu Tsun, Lin-Kou, TaipeiCounty, Taiwan, R.O.C. Tel : (02) 2609-9301, 2609-2133 Fax: (02) 2609-9303 File Number EM930106R2 Report Number EM-F930073 Date of Test Apr. 07 ~ 13, 2004 Date of Report Apr. 23, 2004 FCC ID.QPRST30Page 2 of 53 Audix Corporation Report No. EM-F930073 TABLE OF CONTENTS DescriptionPage TEST REPORT CERTIFICATION........................................................................................................3 1. GENERAL INFORMATION.........................................................................................................4 1.1.Description of Device (EUT).........................................................................................................4 1.2.Tested Supporting System Details..................................................................................................5 1.3.Description of Test Facility...........................................................................................................6 1.4.Measurement Uncertainty..............................................................................................................6 2. POWERLINE CONDUCTED EMISSION MEASUREMENT..................................................7 2.1. Test Equipment............................................................................................................................7 2.2.Block Diagram of Test Setup.........................................................................................................7 2.3.Conducted Limits (Comply with §15.207)......................................................................................8 2.4.EUT’ s Configuration during Compliance Measurement...................................................................8 2.5.ting Condition of EUT...................................................................................................................8 2.6. Test Procedure..............................................................................................................................9 2.7.Conducted Emission Measurement Results................................................................................... 10 3. RADIATED EMISSION MEASUREMENT..............................................................................20 3.1. Test Equipment.......................................................................................................................... 20 3.2. Test Setup.................................................................................................................................. 20 3.3. Radiation Limit (Comply with §15.239 & §15.209)...................................................................... 22 3.4.EUT’ s Configuration during Compliance Measurement................................................................. 22 3.5. Operating Condition of EUT........................................................................................................ 23 3.6. Test Procedure............................................................................................................................ 23 3.7.Radiated Emission Measurement Results...................................................................................... 24 4. 26dB BANDWIDTH MEASUREMENT .....................................................................................28 4.1. Test Equipment.......................................................................................................................... 28 4.2.Block Diagram of Test Setup....................................................................................................... 28 4.3.Specification Limits (§15.239)..................................................................................................... 28 4.4.EUT’ s Configuration during Compliance Measurement................................................................. 28 4.5. 26dB Bandwidth Measurement Results........................................................................................ 28 5. DEVIATION TO TEST SPECIFICATIONS ..............................................................................31 6. PHOTOGRAPHS...........................................................................................................................32 6.1.Photos of Conducted Measurement.............................................................................................. 32 6.2. Photos of Radiated Measurement at Semi-Anechoic Chamber....................................................... 34 6.3.Photos of Bandwidth Measurement.............................................................................................. 42 APPENDIX (Radiated Test data At Semi-Anechoic Chamber) ...........................................................43 FCC ID.QPRST30Page 3 of 53 Audix Corporation Report No. EM-F930073 TEST REPORT CERTIFICATION Applicant Jow Tong Technology Co., Ltd. Manufacturer Jow Tong Technology Co., Ltd. EUT Description Universal Digital FM Transmitter FCC ID QPRST30 (A) MODEL NO. ST-30 (B) SERIAL NO. N/A (C) POWER SUPPLY DC +5V or Battery DC +3V Measurement Procedure Used: FCC RULES AND REGULATIONS PART 15 SUBPART C, DEC. 2003 AND ANSI C63.4-2001 (FCC CFR 47 Part 15C, §15.203,§15.207, §15.209 and§15.239) The device described above was tested by AUDIX COPORATION to determine the maximum emission levels emanating from the device. The maximum emission levels were compared to the FCC Part 15 subpart C limits both radiated and conducted emissions. The measurement results are contained in this test report and AUDIX CORP…

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FCC ID.QPRST30 Page 32 of 53 Audix Corporation Report No. EM-F930073 6. PHOTOGRAPHS 6.1. Photos of Conducted Measurement Test Mode: EUT’s Power with AC Adapter (AC 120V/60Hz) FRONT VIEW OF CONDUCTED MEASUREMENT BACK VIEW OF CONDUCTED MEASUREMENT FCC ID.QPRST30 Page 33 of 53 Audix Corporation Report No. EM-F930073 Test Mode: EUT’s Power with Notebook PC-- USB +5V (AC 120V/60Hz) FRONT VIEW OF CONDUCTED MEASUREMENT BACK VIEW OF CONDUCTED MEASUREMENT FCC ID.QPRST30 Page 34 of 53 Audix Corporation Report No. EM-F930073 6.2. Photos of Radiated Measurement at Semi-Anechoic Chamber 6.2.1. Frequency range 30MHz to 1000MHz Test Mode: EUT’ s Power with AC Adapter (AC 120V/60Hz) FRONT VIEW OF RADIATED MEASUREMENT BACK VIEW OF RADIATED MEASUREMENT FCC ID.QPRST30 Page 35 of 53 Audix Corporation Report No. EM-F930073 EUT’ s Power with Power-Supply Holder for Car (DC 12V) FRONT VIEW OF RADIATED MEASUREMENT BACK VIEW OF RADIATED MEASUREMENT FCC ID.QPRST30 Page 36 of 53 Audix Corporation Report No. EM-F930073 EUT’ s Power with Battery (DC 3V) FRONT VIEW OF RADIATED MEASUREMENT BACK VIEW OF RADIATED MEASUREMENT FCC ID.QPRST30 Page 37 of 53 Audix Corporation Report No. EM-F930073 Test Mode: EUT’s Power with Notebook PC-- USB +5V (AC 120V/60Hz) FRONT VIEW OF RADIATED MEASUREMENT BACK VIEW OF RADIATED MEASUREMENT FCC ID.QPRST30 Page 38 of 53 Audix Corporation Report No. EM-F930073 6.2.2. Frequency range above 1GHz Test Mode: EUT’ s Power with AC Adapter (AC 120V/60Hz) FRONT VIEW OF RADIATED MEASUREMENT BACK VIEW OF RADIATED MEASUREMENT FCC ID.QPRST30 Page 39 of 53 Audix Corporation Report No. EM-F930073 EUT’ s Power with Power-Supply Holder for Car (DC 12V) FRONT VIEW OF RADIATED MEASUREMENT BACK VIEW OF RADIATED MEASUREMENT FCC ID.QPRST30 Page 40 of 53 Audix Corporation Report No. EM-F930073 EUT’ s Power with Battery (DC 3V) FRONT VIEW OF RADIATED MEASUREMENT BACK VIEW OF RADIATED MEASUREMENT FCC ID.QPRST30 Page 41 of 53 Audix Corporation Report No. EM-F930073 Test Mode: EUT’s Power with Notebook PC-- USB +5V (AC 120V/60Hz) FRONT VIEW OF RADIATED MEASUREMENT BACK VIEW OF RADIATED MEASUREMENT FCC ID.QPRST30 Page 42 of 53 Audix Corporation Report No. EM-F930073 6.3. Photos of Bandwidth Measurement