page 3 of 4
Typical usage pattern RKE transmitter
30 lock / unlock operations in 24 hours with a typical transmission duration of
270 milliseconds
1.25 lock / unlock operations / hour
Transmitter ON
0.3375
seconds / hour
Transmitter OFF 3,599.6625 seconds / hour
Duty Cycle: T
ON
/ T
(ON+OFF)
x 100% = 0.3375 / 3,600 x 100 % = 0,009 %
The Modulation used is ASK Manchester coded , therefore the radiated energy during
one telegram is ON only a half of the time of the telegram this means and AVG factor of
20Log(1/2)= -6dB
Variants:
Model
Description
A2C81494900
Transmitter 4button ASK 315MHz
Block diagram
