Let's just say that there are alot of different agencies around here using 'unlicensed' frequencies....lolN1BHH said:Must be an extender on 465.5625, which would be normal, but they aren't licensed for the frequency.
N1BHH said:That is what is known as either a simulcast or a cross-patch. When multiple jurisdictions are crossed, interoperability may be necessary. Other times, when a department is migrating from one band to another they may need to use both systems simultaneously. Then again, some departments utilize mobile repeaters, which can be set up in a vehicle to extend the range of the officer who is portable radio equipped, while he is away from the car. Thus the term "extender" has been used. I tend to use that term, while others use PACRAT or mobile repeater. If you are close enough to a car with one activated, you can hear both frequencies at the same time.
N4UYV_Al said:Let's just say that there are alot of different agencies around here using 'unlicensed' frequencies....lol
No so; they need a license for any "regular" "operational" use. The only time PDs can use low power 460 channels w/o a license is for specialized surveillance and radiolocation. See 47 C.F.R. sec. 90.20(e)(5).zerg901 said:Great find Ranchboy! The police officer must have a portable radio that receives on 465.5625. That portable radio might transmit on 460.5625 or 465.5625. The repeater in the car probably takes the UHF traffic to VHF, and the VHF traffic to UHF. Or maybe the portable radio listens on VHF, and transmits on UHF. (rare)
Maybe 460.5625 is used to patch to the fire channel or County Police freq. Maybe there are other freqs near 465.5625 that are also used.
The possibilities are infinite
PS - come to think of it - I dont think that a PD needs a license if they are using less than 2 watts in a non interferring manner like this.