You know, I just can't remember if it was multicast/simulcast or what. I was mostly involved in checking out the repeater sites after Moto did their work. I certainly wasn't involved in setting it up. I can tell you, which may not be proper to reveal, but the PI's had repeaters on Hogback (skyline drive), Merrifield, Independent Hill, Suitland (they called it Southern Md), I got to lots of sites around the country including VT (Killington), SC, TN, and lots of other places mostly in the Mid Atlantic area. The PI's had maybe 2000 inspectors, where the FBI has maybe 20000 inspectors. But there was more than enough work for the 5 to 8 of us in the radio section to work across the country including PR, VI, HI and AK. I don't know why, but they sent me to Fairbanks once. I really didn't do anything up there except make sure the base station worked right. I did do a lot of work on the base stations which were desktop Astro Spectras in the Inspector offices and they all linked back via internet to ops center in Dallas and Dulles. I worked at Dulles. I'm sure since 2005 it's changed a lot. But everything on the PI channels was encrypted so there's no use trying to listen to that. I wasn't able to unless I took a portable home just to monitor. I've probably told you more than anyone needs to know.
At this point, I think my best option is the SDR, I'm very good at following instructions and I have ham friends that can help me.
Dave - N3DT
Thanks for all the info. We'll be around. And I'm actually in Hume, which is about equidistant from all those towers.