Description

FCC ID: GQ4-64T

Operational Description

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FCCID_1972190

TRW Automotive March 14, 2013 GEE 24175 Research Dr. Farmington Hills, MI 48335-2642 Tel 248.478.7210 Fax 248.699.4241 RE: Certification for HKMC MY2013 315 MHz YD LM/SL FL TPM Sensor Part Number: 225816-125, 225816-129 Model# : 64T FCC ID: GQ4-64T Canada IC: 1470A-45T GENERAL DESCRIPTION This device is a transmitter/sensor with tire valve, which is mounted in the valve hole of the rim and measures the pressure inside the tire, as well as if the vehicle is in motion. These measurements are then transmitted over Radio Frequency (RF) to a receiver also located in the vehicle. The device also has a Low Frequency (LF) receiver. This receiver supports Low Frequency (LF) magnetic field communications allowing the changing of measurement/monitoring states of the transmitter by commands sent via the TPM diagnostic tool. The RF signal operates at 315MHz and uses FSK Manchester code modulation. Description of Operation Sensor Description Frequency of Transmission State/Mode Storage Measures pressure / temperature. Single 8-Frame TPS Message upon LF request. Sleep Measures pressure / temperature Single 8-Frame TPS Message upon LF request. and motion. Motion Measures pressure / temperature Single 8-Frame TPS Message at 16 second intervals for and motion. Transmits 1st minute after exiting Sleep State and then at 1 minute periodically. intervals or upon LF request. Motion Alert Measures pressure / temperature 1 minute period of 4 second interval 8-Frame TPS and motion. Transmits when: Messages a) significant pressure delta detected Rest Measures pressure / temperature Single 8-Frame TPS Message upon LF request. and motion. TRW Automotive US LLC


Document Created: 2013-05-15 12:09:12
Document Modified: 2013-05-15 12:09:12
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