User's Manual

1. Constitution of the Radio Frequency Keyless Entry
System for vehicle
The radio frequency keyless entry is a system that it controls locking and unlocking the door and
the
trunk by wireless remote controller. This system consists of three components. The TRANSMITTER is a device
that transmits the signal when the button is pressed. The transmission signal consists of several synchronous
codes , unique identification code , security code and function code. The RECEIVER is fixed inside the
vehicle. It works intermittently to prevent the battery exhaustion. When the receiver detects
the
synchronous code, it runs continuously to receive the signals completely. After receiving the signal, the receiver
decides which operation will be performed. The user can select the following operations by pressing the
button of the remote transmitter.
OPERATION ACTION
LOCK lock the door
UNLOCK unlock the door
PANIC alarm the horn
Transmitter
f = 307.9MHz
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