The county I live in is a Kenwood branded area so all of the fire departments, and police all have kenwood radios. There is one channel that they have thats a mutual aid channel, the dispatchers call it "UHF Common". When units transmit on this channel, there is no hangtime with a repeater - dispite the fact that units can talk from one end of the county to the next- so its definately not simplex- and when units let go of the PTT, there is a distinct double click - like a normal radio closing the squelch but twice instead of once. also the signal is really powerful and clean but the audio sounds really basic and uncompanded compared to the other channels they have. anyone know what kind of system this is?? its pretty weird, the RR database says the channel is csq but its wrong because i can decode a 167.9 tone. pretty sure our county rr is outdated cause the tags are all wrong and there are channels in there that are way way long gone.