Directed Electronics Car Alarm Automobile Alarm User Manual


 
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© 2001 directed electronics, inc.
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This unit features Anti-Code Grabbing (ACG) with Random
Code Encryption. This means the receiver and transmitters each
use a mathematical formula called an algorithm to change their
code each time the transmitter is used. This technology has been
developed to increase the security of the unit. The control unit
knows what the next codes should be. This helps to keep the
transmitter "in sync" with the control unit even if you use the
remote control out of range of the vehicle. However, if a trans-
mitter button has been pressed many times out of range of the
vehicle, or the battery has been removed, it may get out of sync
with the control unit and fail to operate the system. To re-sync
the remote control simply press of the transmitter several
times within range of the vehicle. The alarm will automatically
re-sync and respond to the transmitters normally.
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Your system transmits and receives at 433 MHz. This provides a
cleaner spectrum with less interference and a more stable signal.
Enjoy a phenomenal increase in range – even in areas with high
radio interference.