Car Alarms Checking in on 447.700 MHz?

You also have to think about the ignorant car alarm owners themselves. They have no idea whats going on (and probably don't care), nor should they be at fault for using a car alarm. The alarm manufacturer should be the one to take the heat, and they should get heat for being ingnorant.

 

After reading your posts I did some investigation.. 50 watts from a GP-6 @ 38 feet will set off Mercedes, BMW, & Volvo alarms for 3 blocks
Just thought you would like to know.. Thinking about driving by the MB dealership

 

In a recent exchange with the ARRL. One of these
434.790 car alarms was tested an was putting out
30 mw when the limit is 30 microwatts. Add an ant.
(also not legal for part 15) and you have QRM for
many miles. A complaint has been sent to the FCC.
Bob W1CTC