QPRST22Transpod

FCC ID. QPRST22 FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. CAUTION: To assure continued FCC compliance: Any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment.

From: leon [[email protected]] Sent: Friday, November 15, 2002 2:00 AM To: Mike Kuo Subject: Re: Jow Tong Technology Co., Ltd., FCC ID:QPRST22, AN02T2344 Importance: High Hello Mike: My reply is below your question. Hope can hear your comment soon. Have a nice weekend. Leon 11/15 ----- Original Message ----- From: "Mike Kuo" <[email protected]> To: <[email protected]> Cc: <[email protected]> Sent: Friday, November 15, 2002 2:25 AM Subject: Jow Tong Technology Co., Ltd., FCC ID:QPRST22, AN02T2344 > Question #1: Appendix ( Radiated Test Data at Semi-Anechoic Chamber ). What > is the RBW, VBW and detector function that were used ? In the future > submission, when you submitted the spectrum plots, please always including > RBW, VBW and Detector function on each plot. 1.Yes,I'll specify the RBW , VBW and Detector to submit spectrum in future. 2.I confirmed above spectrum plot which RBW is 120K 30~1000MHz; VBW is 1M 30~1000MHz, Detector is Peak mode.Sweep time:500ms > Question #2: Page 10 of 25 of test report, only average reading is provided. In accordance with Section 15.239 ( b) of rules, the provisions in 15.35 for limiting peak emissions apply. Please provide the peak reading. After the measurement,I got the level are 44.5dBuv/m(Hor.)and 42.2dBuv/m(Ver.) please see the attached file <F91167-Jow-Tong....> > Question #3: Please provide operational description. In this document, > please address the limitation in the frequency tuning range to prevent this transmitter to transmit the frequency beyond 88-108MHz. Please see the attached file<TCB-Question-answer-letter....> There are aletter of declaration and corrected user manual. > > Question #4: Based upon the tuning range as described in the user manual, > this device can be tuned to below 88 MHz and also above 108MHz. Per 15.205 > restricted band requirement, only spurious emission is allow in the > restricted band. In this case, this transmitter is capable of tune to > 108--121.94MHz restricted band which is not allowed. Please see the attached file<TCB-Question-answer-letter....> There are declaration and corrected user manual. > Best Regards > > Mike Kuo/ TCB Certifier > The items indicated above must be submitted before processing can continue > on the above referenced application. Failure to provide the requested > information within 60 days of the original e-mail date may result in > application dismissal and forfeiture of the filing fee. Also, please note > that partial responses increase processing time and should not be submitted. > Any questions about the content of this correspondence should be directed to > the e-mail address listed below the name of the sender. > > Mike Kuo > Compliance Certification Services > 561F Monterey Road > Morgan Hill, CA 95037 > *Tel:(408)463-0885 x:105 > *Fax:(408)463-0888 > *:[email protected] > http:\\www.ccsemc.com > >

Page 6 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photographs Photos 1 General Appearance (Front View) Photos 2 (Plug #1) Appearance View

Page 4 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Label Drawing z Label Placement Location (Bottom Side of EUT) FCC LABEL Model: TRANSPOD I/P: DC12V/1.5A Frequency: 88MHz~108MHz FCC ID: QPRST22 MADE IN TAIWAN

Page 7 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 3 (Plug #1) Remove Case Cover, Internal View Photos 4 (Plug #1) Remove Case Cover, Internal View Page 8 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 5 (Plug #1) Remove Case Cover, Internal View Photos 6 (Plug #1) Appearance View Page 9 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 7 (Plug #1) Remove Case Cover, Internal View Photos 8 (Plug #2) Appearance View Page 10 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 9 (Plug #2) Appearance View Photos 10 (Plug #2) Remove Case Covers, Internal View Page 11 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 11 (Plug #2) PC Board, Component Side Photos 12 (Plug #2) PC Board, Solder Side Page 12 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 13 (Plug #2) Appearance View Photos 14 (Plug #2) Remove Case Cover, Internal View Page 13 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 15 (Holder Station) Appearance View Photos 16 (Holder Station) Appearance View Page 14 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 17 (Holder Station) Remove Case Covers, Internal View Photos 18 (Holder Station) Main Board, Component Side Page 15 Jow Tong Technology Co., Ltd. Transpod FCC ID. : QPRST22 Photos 19 (Holder Station) Main Board, Solder Side

To: Compliance Certification Services Date: November 15, 2002 Attn: Mr. Mike Kuo Dear Mr. Kuo, I got your question regarding my application “ Transpod ST-22” from Taiwan Tokin EMC Eng. Corp. (Which is my relied lab.) This is the first time to apply FCC ID, so I have little deviation in my specification. To Your Question 3: I can confine the tuning range within 88-108MHz in mass production. Actually, Taiwan Tokin measured for me, the tuning range is truly in 88-108MHz, so I shall correct my user manual on tuning frequency range ...ect, please see the attached file ( User Manual). As to Question 4, I do assure to submit to avoid tuning frequency over 88MHz-108MHz restricted band. Best Regards, _______________________________________ Shang Wen, Huang RD Manager Jow Tong Technology Co., Ltd. FCC ID. QPRST22 FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. CAUTION: To assure continued FCC compliance: Any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment.

JOW TONG Technology Co.,Ltd. FCC ID: QPRST22 Circuit Operation Description 1. Circuit input power is DC 12V+. 2. The power section of circuit is composed by electric inductance, diode, varistor and electric capacitor. This is the a protection for noise filter ,battery reverse and surge from input power. 3. LED1 is a power indicator. When power on, it is RED light. 4. U3 is a 9V voltage regulator. It supplies power to the circuit. 5. U1 is a 3V voltage regulator. It supplies power to radio frequency circuit. 6. D1 and R30 is the charging indicator. LED2 is RED light when charging on. LED2 is GREEN light when charging off. 7. In the audio in of circuit, the input pole for the out-coming signal, this signal can be from CD, MD, MP3 player, walk men and so on instrument for audio output. 7. U2 is a FM transmitter IC, has the modulate function, and oscillate circuit. U2 creates radio frequency modulation signal. Small signal is enlarge by Q2, decreased by the attenuate circuit, then being shoot out by antenna. 8. External control oscillator of circuit is composed by VR1, VL2, VD1, C25 and other capacitor. VR1 is a frequency fine-tuning. Cooperate with switch of SW1, can be used for different frequency range. The usable frequency range is 88MHz~108MHz. NOTE: 1. Input power range DC 10V+~16V+.

FCC ID.QPRST22 Page 1 of 25 APPLICATION FOR CERTIFICATION On Behalf of JowTong Technology Co., Ltd. Transpod Model No.：ST-22 FCC ID：QPRST22 Prepared for : JowTong Technology Co., Ltd. 46, Lane 337, Chung Cheng Rd., Yung Kang, Tainan Hsien 710, Taiwan, R.O.C. Prepared by : Taiwan Tokin EMC Eng. Corp. No. 53-11, Tin-Fu Tsun, Lin-Kou, Taipei Hsien, Taiwan, R.O.C. Tel : (02) 2609-9301, 2609-2133 Fax: (02) 2609-9303 File Number ： ATM-G91998 Report Number ： TTEMC-F91167 Date of Test ： Nov. 02, 2002 Date of Report ： Nov.06, 2002 Taiwan Tokin EMC Eng. Corp. Report No. TTEMC-F91167 FCC ID.QPRST22 Page 2 of 25 TABLE OF CONTENTS Description Page 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 .................................................................................................................... 5 1.4. Measurement Uncertainty....................................................................................................................... 5 2. POWERLINE CONDUCTED TEST.............................................................................................6 3. RADIATED EMISSION TEST ......................................................................................................7 3.1. Test Equipment ....................................................................................................................................... 7 3.2. Test Setup ............................................................................................................................................... 7 3.3. Radiation Limit (§15.239 & §15.209) .................................................................................................... 8 3.4. EUT’s Configuration during Compliance Measurement ........................................................................ 8 3.5. Operating Condition of EUT .................................................................................................................. 8 3.6. Test Procedure ........................................................................................................................................ 9 3.7. Test Results............................................................................................................................................. 9 3.8. Radiated Emission Noise Measurement Results................................................................................... 10 4. BANDWIDTH TEST .....................................................................................................................12 4.1. Test Equipment ..................................................................................................................................... 12 4.2. Block Diagram of Test Setup................................................................................................................ 12 4.3. Specification Limits (§15.239) ............................................................................................................. 12 4.4. EUT’s Configuration during Compliance Measurement ...................................................................... 12 4.5. Bandwidth Measurement Results ......................................................................................................... 12 5. DEVIATION TO TEST SPECIFICATIONS..............................................................................16 6. PHOTOGRAPHS...........................................................................................................................17 6.1. Photos of Radiated Measurement at Semi-Anechoic Chamber ............................................................ 17 6.2. Photos of Bandwidth Measurement ...................................................................................................... 18 6.3. Photos of EUT ...................................................................................................................................... 18 APPENDIX (Radiated Test data At Semi-Anechoic Chamber)...........................................................19 Taiwan Tokin EMC Eng. Corp. Report No. TTEMC-F91167 FCC ID.QPRST22 Page 3 of 25 TEST REPORT CERTIFICATION Applicant ： JowTong Technology Co., Ltd. Manufacturer ： JowTong Technology Co., Ltd. EUT Description ： Transpod FCC ID ： QPRST22 (A) MODEL NO. ： ST-22 (B) SERIAL NO. ： N/A (C) POWER SUPPLY：DC 12V Measurement Procedure Used: FCC RULES AND REGULATIONS PART 15 SUBPART C, MAY 2002 AND ANSI C63.4/1992 (Intentional Radiators Compliance §15.239) The device described above was tested by TAIWAN TOKIN EMC ENG. CORP. 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 TAIWAN TOKIN EMC ENG. CORP. is assumed full responsibility for the accuracy and completeness of these measurements. Also, this report shows that the EUT to be technically compliant with the FCC official limits. This report applies to above tested sample only. This report shall not be reproduced in part without written approval of Taiwan Tokin EMC Eng. corp. Date of Test : Nov. 02, 2002 Prepared by : (Cherry Wang/Assistant Manager) Test Engineer : (Allen Wang/Deputy Manager) Approve & Authorized Signer : (Leon Liu/Manager) Taiwan Tokin EMC Eng. Corp. Report No. TTEMC-F91167 FCC ID.QPRST22 Page 4 of 25 1. GENERAL INF…

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FCC ID.QPRST22 Page 10 of 25 Taiwan Tokin EMC Eng. Corp. Report No. TTEMC-F91167 3.8. Radiated Emission Noise Measurement Results The frequency spectrum from 30 MHz to 1000MHz is investigated. All the emissions not reported below are too low against the FCC Part 15 Subpart C official limits. Date of Test Nov. 02, 2002 Temperature20 EUT Transpod Humidity50 Test Mode Frequency: 107.0MHz (with Plug #1) Antenna Cable Meter Reading Emission Level Frequency Factor Loss Horizontal Horizontal Limits Margin MHz dB/m dB dBμV dBμV/m dBμV/m dB ----------------------------------------------------------------------------------------------------------- Fundamental Freq. (Average Value) 107.000 17.54 2.20 23.47 43.21 48.00 4.79 Fundamental Freq. (Peak Value) 107.000 17.54 2.20 23.47 44.50 68.00 23.50 Spurious Freq. (Quasi-Peak Value) 76.980 12.63 1.80 9.14 23.57 40.00 16.43 214.000 22.63 3.11 4.00 29.74 43.50 13.76 239.790 24.64 3.40 5.66 33.70 46.00 12.30 287.580 26.01 3.80 7.00 36.81 46.00 9.19 301.400 14.78 3.90 16.42 35.10 46.00 10.90 360.900 16.60 4.43 2.16 23.19 46.00 22.81 385.400 16.78 4.70 14.31 35.79 46.00 10.21 409.900 16.60 4.90 14.46 35.96 46.00 10.04 428.000 17.14 5.18 3.16 25.48 46.00 20.52 535.000 18.67 7.00 1.06 26.73 46.00 19.27 642.000 19.80 6.30 - 0.40 25.70 46.00 20.30 749.000 22.20 6.70 - 0.40 28.50 46.00 17.50 856.000 22.80 7.10 - 0.59 29.31 46.00 16.69 963.000 22.98 7.60 - 0.13 30.45 54.00 23.55 ----------------------------------------------------------------------------------------------------------- Remark 1. Emission Level = Antenna Factor + Cable Loss + Meter Reading. 2. The emissions level are too low against the official limit and not report. FCC ID.QPRST22 Page 11 of 25 Taiwan Tokin EMC Eng. Corp. Report No. TTEMC-F91167 Date of Test Nov. 02, 2002 Temperature20 EUT Transpod Humidity50 Test Mode Frequency: 107.0MHz (with Plug #1) Antenna Cable Meter Reading Emission Level Frequency Factor Loss Vertical Vertical Limits Margin MHz dB/m dB dBμV dBμV/m dBμV/m dB ----------------------------------------------------------------------------------------------------------- Fundamental Freq. (Average Value) 107.000 17.40 2.20 22.20 41.80 48.00 6.20 Fundamental Freq. (Peak Value) 107.000 17.40 2.20 22.20 42.20 68.00 25.80 Spurious Freq. (Quasi-Peak Value) 63.400 14.22 1.66 6.10 21.98 40.00 18.02 214.000 22.90 3.11 - 0.45 25.56 43.50 17.94 240.330 25.04 3.40 2.55 30.99 46.00 15.01 321.000 14.59 4.20 5.22 24.01 46.00 21.99 360.900 15.30 4.43 15.23 34.96 46.00 11.04 385.400 16.10 4.70 13.12 33.92 46.00 12.08 409.900 16.40 4.90 13.89 35.19 46.00 10.81 428.000 16.44 5.18 14.36 35.98 46.00 10.02 535.000 18.50 7.00 - 0.05 25.45 46.00 20.55 642.000 19.70 6.30 0.10 26.10 46.00 19.90 749.000 21.10 6.70 1.11 28.91 46.00 17.09 780.900 22.00 6.80 5.88 34.68 46.00 11.32 963.000 23.26 7.60 1.11 31.97 54.00 22.03 ----------------------------------------------------------------------------------------------------------- Remark 1. Emission Level = Antenna Factor + Cable Loss + Meter Reading. 2. The emissions level are too low against the official limit and not report.

FCC ID.QPRST22 Page 17 of 25 6. PHOTOGRAPHS 6.1. Photos of Radiated Measurement at Semi-Anechoic Chamber FRONT VIEW OF RADIATED TEST BACK VIEW OF RADIATED TEST Taiwan Tokin EMC Eng. Corp. Report No. TTEMC-F91167 FCC ID.QPRST22 Page 18 of 25 6.2. Photos of Bandwidth Measurement 6.3. Photos of EUT Plug #1 Plug #2 Taiwan Tokin EMC Eng. Corp. Report No. TTEMC-F91167