GQ428TTire Pressure Monitor System

Re: Certification for TRW Transmitter Model: 15825475 FCC ID: GQ428T IC: 1470A-8T USER'S MANUAL INFORMATION (PRELIMINARY) The User's Manual is in preparation. The following material will be contained in the manual: FCC ID: GQ428T IC: 1470A-8T This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. WARNING: Changes or modifications not expressively approved by the party responsible for compliance could void the user's authority to operate the equipment. The term “IC:” before the radio certification number only signifies that Industry Canada technical specifications were met.

Re: Certification for TRW Transmitter Model: 15825475 FCC ID: GQ428T IC: 1470A-9T POWER OF ATTORNEY A letter granting Valdis V. Liepa the Power of Attorney is on file and can be provided when so requested. Re: Certification for TRW Transmitter Model: 15825475 FCC ID: GQ428T IC: 1470A-9T REQUEST FOR CONFIDENTIALITY Pursuant to 47 CRF 0.459, TRW requests that a part of the subject application be held confidential. This comprises Exhibits (5) Schematics (10) Parts List (Part of Exhibit only) TRW has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. If there are any questions regarding this request, please contact me at the above address or call 734-483-4211, fax 734-647-2106 or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist University of Michigan June 21, 2005 Re: Certification for TRW Transmitter Model: 15825475 FCC ID: GQ428T IC: 1470A-9T STATEMENT OF MODIFICATIONS There were no modifications made to the DUT by this test laboratory. (Also see Section 3.1 of the attached Test Report). _____________________ Valdis V. Liepa Research Scientist Re: Certification for TRW Transmitter Model: 15825475 FCC ID: GQ428T IC: 1470A-9T GENERAL PRODUCT INFORMATION The device, for which certification is pursued, has been designed by: TRW Inc. 24175 Research Drive Farmington Hills, MI 48335-2642 Michael Young Tel: 248-442-5316 Fax: 248-442-7241 It will be manufactured by: TRW Inc. 24175 Research Drive Farmington Hills, MI 48335-2642 Michael Young Tel: 248-442-5316 Fax: 248-442-7241 Canadian Contact: TRW Canada Limited 16643 Highway 12 Midland, Ontario, Canada L4R4L5 Bob Millet (705) 526-8791 ext 4103 (705) 527-6232

TRW Automotive 24175 Research Drive Farmington Hills, MI 48335 Tel: 248.478.7210 Fax: 248.478.7241 Confidential 6/11/2005 Certification for TRW TPM ’07 Sensor Model # 15825475 FCC ID: GQ428T IC: 1470A-9T TPMS BLOCK DIAGRAM Pressure Senso r Temperature Senso r Battery Voltage Sensor LF Receiver Microcontroller Acceleromete r TPM ASIC TPM RF ASIC ASK-DATA RF- ENABLE XTAL Oscillator Power Amplifier Output Housing / Rim Mount Tire Valve + Lithium - Battery vco Frequency Synthesizer RF Amplifier

June 21, 2005 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 RE: Certification Application FCC ID: GQ428T IC: 1470A-9T Please find enclosed application materials for certification of TRW 15825475 Transmitter. Note: 1) portions of this submittal are filed Confidential 2) a list of the modifications made is provided in Attestations. If there are any questions regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647-2106, or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist

June 21, 2005 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Re: Certification for TRW Transmitter Model: 15825475 FCC ID: GQ428T IC: 1470A-9T Please find enclosed application materials for certification of TRW 15825475 Transmitter. We tested it and found it to comply with FCC Part 15. If there are any questions regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647-2106, or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist June 21, 2005 Certification and Engineering Bureau Industry Canada 3701 Carling Avenue, Bldg. 94 Ottawa, Ontario K2H 8S2 Re: Certification for TRW Transmitter Model: 15825475 FCC ID: GQ428T IC: 1470A-9T Please find enclosed application materials for certification of TRW 15825475 Transmitter. We tested the device and found it to comply with RSS-210. The product is identified by: IC: 1470A-9T If there are any questions, suggestions, etc., regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647- 2106; e-mail: [email protected]. Sincerely, Valdis V. Liepa Research Scientist

TRW Automotive 24175 Research Drive Farmington Hills, MI 48335 Tel: 248.478.7210 Fax: 248.478.7241 Certification for TRW TPM ’07 Sensor Model # 15825475 FCC ID: “FCC ID: GQ428T”: Canadian IC: “IC: 1470A-9T” TPMS HOUSING LABELING (Laser Etch) CANADIAN IC ID: “IC: 1470A-9T” FCC ID: “FCC ID: GQ428T” Confidential 6/24/2005

TRW Automotive 24175 Research Drive Farmington Hills, MI 48335 Tel: 248.478.7210 Fax: 248.478.7241 Confidential 6/11/2005 Certification for TRW TPM ’07 Sensor Model # 15825475 FCC ID: GQ428T IC: 1470A-9T General Description of Operation of TPMS: The TPM SENSOR is an RF transmitting device that contains an integrated tire valve stem that is mounted in the valve hole of each of the wheel rims on the vehicle. The sensor transmits the pressure and temperature inside the tire, as well as the battery voltage status of the transmitter. With each transmission each sensor unique tire identification code (ID) is also sent. The sensor will transmit at 315MHZ periodically when the vehicle speed is ~20mph. The vehicle speed is determined from an accelerometer that is contained within the sensor. The sensor will also transmit data if a change in the air pressure occurs while the vehicle is stationary or in a rolling state. The transmissions from each sensor have a random delay to ensure that RF signals from each tire will not interference due to simultaneous transmissions. The transmitter device also has a Low Frequency (LF) receiver. The receiver supports Low Frequency magnetic field communications for placing the sensor in the Learn mode with a hand held tool. This permits the programming of the sensors to a receiver within the vehicle. The RF transmission format is ASK (Amplitude Shift Keying) Manchester encoded at 315 MHz.

The University of Michigan Radiation Laboratory 3228 EECS Building Ann Arbor, MI 48109-2122 Tel: (734) 764-0500 Measured Radio Frequency Emissions From TRW GMT900 TPMS Transmitter Model(s): 15825475 Report No. 415031-253 June 21, 2005 Copyright © 2005 For: TRW, Inc. 24175 Research Drive Farmington Hills, MI 48335-2642 Contact: Michael Young Tel: 248-442-5316 Fax: 248-442-7241 PO: Verbal Tests supervised by: Measurements made by: Report approved by: _____________________ Valdis V. Liepa Valdis V. Liepa Research Scientist Summary Tests for compliance with FCC Regulations Part 15, Subpart C, and Industry Canada RSS-210, were performed on TRW model(s) 15825475. This device is subject to the Rules and Regulations as a Transmitter. In testing completed on June 6, 2005, the device tested in the worst case met the allowed FCC specifications for radiated emissions by 2.7 dB (see p. 6). Besides harmonics, there were no other significant spurious emissions found; emissions from digital circuitry were negligible. The conducted emission tests do not apply, since the device is powered from a 12 VDC battery. 2 1. Introduction TRW model(s) 15825475 was tested for compliance with FCC Regulations, Part 15, adopted under Docket 87-389, April 18, 1989, and with Industry Canada RSS-210, Issue 5, November, 2001. The tests were performed at the University of Michigan Radiation Laboratory Willow Run Test Range following the procedures described in ANSI C63.4-2003 "Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz". The Site description and attenuation characteristics of the Open Site facility are on file with FCC Laboratory, Columbia, Maryland (FCC Reg. No: 91050) and with Industry Canada, Ottawa, ON (File Ref. No: IC 2057). 2. Test Procedure and Equipment Used The pertinent test equipment commonly used in our facility for measurements is listed in Table 2.1 below. The middle column identifies the specific equipment used in these tests. Table 2.1 Test Equipment. Test Instrument Eqpt. Used Manufacturer/Model Spectrum Analyzer (0.1-1500 MHz) Hewlett-Packard, 182T/8558B Spectrum Analyzer (9kHz-22GHz) X Hewlett-Packard 8593A SN: 3107A01358 Spectrum Analyzer (9kHz-26GHz) X Hewlett-Packard 8593E, SN: 3412A01131 Spectrum Analyzer (9kHz-26GHz) Hewlett-Packard 8563E, SN: 3310A01174 Spectrum Analyzer (9kHz-40GHz) Hewlett-Packard 8564E, SN: 3745A01031 Power Meter Hewlett-Packard, 432A Power Meter Anritsu, ML4803A/MP Harmonic Mixer (26-40 GHz) Hewlett-Packard 11970A, SN: 3003A08327 Harmonic Mixer (40-60 GHz) Hewlett-Packard 11970U, SN: 2332A00500 Harmonic Mixer (75-110 GHz) Hewlett-Packard 11970W, SN: 2521A00179 Harmonic Mixer (140-220 GHz) Pacific Millimeter Prod., GMA, SN: 26 S-Band Std. Gain Horn S/A, Model SGH-2.6 C-Band Std. Gain Horn University of Michigan, NRL design XN-Band Std. Gain Horn University of Michigan, NRL design X-Band Std. Gain Horn S/A, Model 12-8.2 X-band horn (8.2- 12.4 GHz) Narda 640 X-band horn (8.2- 12.4 GHz) Scientific Atlanta , 12-8.2, SN: 730 K-band horn (18-26.5 GHz) FXR, Inc., K638KF Ka-band horn (26.5-40 GHz) FXR, Inc., U638A U-band horn (40-60 GHz) Custom Microwave, HO19 W-band horn(75-110 GHz) Custom Microwave, HO10 G-band horn (140-220 GHz) Custom Microwave, HO5R Bicone Antenna (30-250 MHz) X University of Michigan, RLBC-1 Bicone Antenna (200-1000 MHz) X University of Michigan, RLBC-2 Dipole Antenna Set (30-1000 MHz) X University of Michigan, RLDP-1,-2,-3 Dipole Antenna Set (30-1000 MHz) EMCO 2131C, SN: 992 Active Rod Antenna (30 Hz-50 MHz) EMCO 3301B, SN: 3223 Active Loop Antenna (30 Hz-50 MHz) EMCO 6502, SN:2855 Ridge-horn Antenna (300-5000 MHz) X University of Michigan Amplifier (5-1000 MHz) X Avantak, A11-1, A25-1S Amplifier (5-4500 MHz) X Avantak Amplifier (4.5-13 GHz) Avantek, AFT-12665 Amplifier (6-16 GHz) Trek Amplifier (16-26 GHz) Avantek LISN Box University of Michigan Signal Generator Hewlett-Packard 8657B 3 3. Configuration and Identification of Device Under Test The DUT is a 315 MHz Tire Pressure Monitor Sensor (TPMS) transmitter, 7 x 6 x 1.5 inches in size. When the vehicle is in motion it transmits tire pressure information to a receiver in the vehicle. It can also be activated by exposure to a 125 kHz LF signal; a procedure used in factory/set-up operations. When the vehicle is in motion the transmission consists of four quasi-Manchester encoded words repeated every 60 seconds (typically). The transmitter 315 MHz carrier is generated by a SAW stabilized oscillator. The coding is generated by a micro and is ASK encoded on the carrier. The DUT was designed and manufactured by TRW, 24175 Research Drive, Farmington Hills, MI 48335-2642. It is identified as: TRW TPMS Transmitter Model(s): 15825475 FCC ID: GQ428T IC: 1470A-9T One device (production) was provided. The two models are identical, except for the model number. For testing, the DUT was activated by LF in alert (set-up) mode. Under such., the transmission consisted of 8 word packets and lasted for 4 seconds. 3.1 Modifications Made There were no modifications made to the DUT by this laboratory. 4. Emission Limits The DUT tested falls under the category of an Intentional Radiators and the Digital Devices. For FCC, it is subject to Part 15, Subpart C, (Section 15.231), Subpart B, (Section 15.109), and Subpart A, (Section 15.33). For Industry Canada it is subject to RSS-210, (Sections 6.1 and 6.3). The applicable testing frequencies with corresponding emission limits are given in Tables 4.1 and 4.2 below. As a digital device, the DUT is considered as a Class B device. 4.1 Radiated Emission Limits Table 4.1. Radiated Emission Limits (FCC: 15.33, 15.35, 15.109; IC: RSS-210, 6.2.2(r)). (Digital Class B) Freq. (MHz) E lim (3m) μV/m E lim dB(μV/m) 30-88 100 40.0 88-216 150 43.5 216-960 200 46.0 960-2000 500 54.0 Note: Average readings apply above 1000 MHz (1 MHz BW) Quasi-Peak readings apply to 1000 MHz (120 kHz BW) 4 Table 4.2. Radiated Emission …

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