User's Manual

Logic Block Diagram
Transmitter
antenna
High frequency local
oscillator signal modulate
Voltage-stabilizing and filter
Status
direction
Radio-frequency carrier
shift signal output
Spansion
signal processing unit
A/D coded conversion
output
Function
button circuit
12V battery
Coded
signal
433.92MHZ
quartz crystal
local oscillator
Sound control
chip
Microphone
Filter enlarge