I programmed all 12 frequencies (3 sites x 4 freq each) listed in the FCC data base for the "Y" systems in conventional mode, along with 460.125 and 460.65.
I hear PD just fine on 460.125 and FD just fine on 460.65 (plain old conventional mode)
Occassionaly, I would get a "hit", like someone momentarily keying a mic on one of the 12 trunked channels, never any audio, and never any "data" or "digital" noise.
When I would hear audio on the PD or FD channel, if I hit scan, I NEVER hear audio on one of the other 12 channels. My experience on LTR is that you should hear audio, though you might not "hop" to the proper channel, but this was in conentional mode and I heard nothing.
So I am done trying to figure out any sort of LTR set up! Just staying with the basic channels