FCC ID: KR55WK45032 User Manual / Functional Description of the Siemens RF Transmitter 5WK4 5032 315 MHz Language: English File: s:\postzula\vw\kessy\func_5wk45032_e page 1 of 4
FCC ID: KR55WK45032 General description of the RF transmitter The 315 MHz RF remote control system consisting of a RF transmitter and a RF receiver mounted within the control unit. The RF transmitter is mechanically integrated in the head of the key. This transmitter is used to transmit an information for locking or unlocking the vehicle by an unidirectional RF transmission line for normal remote operation by pressing a button.
FCC ID: KR55WK45032 Oscillator The oscillator is of PLL type. The operating frequency is about 315 MHz ± 75 kHz. Mechanical design The mechanical of the transmitter is composed of four parts: the superior shell the inferior shell metal insert battery support (mechanical protection to afford battery inversion) The battery placement is integrated in the inferior shell.
FCC ID: KR55WK45032 Typical usage pattern 27 lock / unlock operations in 24 hours with a typical transmission duration of 500 milliseconds Transmitter ON 13,5 seconds / 24 hours Transmitter OFF 86.386,5 seconds / 24 hours Duty Cycle: TON / T (ON+OFF) x 100% = 13,5 / 86.
