Doesn't dps broadcast to some 154mhz frequency and then repeated on the GATRRS system?It really just depends on where they are. I occassionaly pickup DPS in Travis who are affiliated to Wilco. I actually just turned a portable on in Round Rock and it went to County Wide instead of Wilco. There's so much overlapping coverage on the system in makes NA monitoring a little difficult.
Oh yea, Lockhart and Iron Mountain (going off of memory) are also 700 MHz sites.