Rocky Mountain Radar RMR-C430 User Manual
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CONTROLS: There are 3 buttons on top of the 
RMR-C430, Dim, Mute and City. 
 
Dim: Press the Dim button for one second to dim 
the alarm lights. There are 3 levels of brightness. To 
brighten the alarm lights press the dim button again.
Mute: Press the Mute button for one second to 
disable the alarm speaker for quiet operation. To 
reactivate the alarm speaker press the Mute button 
again for one second. 
City: Press the City button for one second to reduce 
false alarms in high RF noise areas. The yellow City 
light will illuminate to show activation. 
 
Reminder! The RMR-C430 will memorize the 
settings of the features above when the unit is 
powered off. Be sure to readjust the settings to 
your normal preferences. 
 
Power and Volume: Power is provided through the 
thumb wheel switch on the left side of the unit. 
Rotate the wheel forward to turn on and increase the 
volume for the alarm. 
Rocky Mountain Radar does not condone the use 
of excessive speed on the highways, nor does it 
endorse breaking the speed limit laws of the 
United States of America. Please drive safely 
when using this or any other electronic product 
in your car. 
 
 
 
 
 
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