For the People who are having Interference Problems on 220 , You might
want to Check around the Walgreen Stores that have put up the New
Electronic signs. I Have a Repeater on 224.740 and a few of the Stores
if I am in the Parking lot or get within a block I have a Full scale
reading on the output 224.740
A related story to this Months back a Local FD was using their simplex
Freq of 153.890 at a Fire Near a Walgreen's that had the New Sign,
and the Fireman could not hear their Dispatcher . An Investigation was
done and it was found that the New sign was putting out a carrier on
that freq .
Walgreen's were notified and the Problem was fixed by some filtering ,
I Took some Equipment out about 3 in the Morning to 5 Local Walgreen's
and the 3 that had the New Sign , I had Spurs all over the Place
130-470 Mhz . I Was also informed by another Ham who had helped with
the FD Problem and He gave Me some Walgreen Contact Numbers but I never
did pursue It , I don't have any users who live by a Walgreen's but
they all have the Problem in their Mobiles as they drive By . I don't
know if this is a Widespread problem or not but other users can check it
out too and see.
Happy and Safe New Year to All
Don KA9QJG