Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>
At 09:32 PM 3/18/2007, Tesla list wrote:
Original poster: "earl rhodes" <earl_1975@xxxxxxxxxxxxx>
hi all
isnt it possible the report is correct ?? cheap radios suffer
serious bleedover from other radio sources !! im not ham i was
citizen band ! surely police radio isnt very high quality mor just
summat that works !!
Nope.. commercial land mobile radio is required to meet certain
performance standards, just to be legally sold. And, then, while
the local gendarmes aren't wealthy, they aren't that cost sensitive,
that they would cheap out on the radios.
crap!! so does anybody know the frequencys were talking about !!
In the U.S., the police generally use low VHF (30-88 MHz, highway
patrol, forest service), high VHF (150-174 MHz), or UHF (400+ MHz)
and some 800 MHz trunking stuff these days.
A TC will put out some VHF power (as Terry Fritz measured a decade
ago or so), but not all that much. It's also spread over a very
wide bandwidth, so even if the total power is high, the power in any
one channel is very low.