Originally Posted by abqscan
They are simplex 800MHz, not part of the EDACS.
852.86250 DFD FG-1 Fireground (used where TRS does not work well)
853.32500 DFD FG-2 Fireground (used where TRS does not work well)
These frequencies are what I thought they were refering to when I first heard the "repeater" term. I can tell you that I have had to opportunity to closely monitor tactical radio traffic on some recent calls when units were told to use "Repeater (whatever)" and these simplex fireground frequencies were not in use. (and why would you refer to a simplex frequency as a "repeater" anyway?)
Additionally, there was a three-alarm high-rise fire a few Sundays ago downtown where I monitored these simplex firegrounds, refered to by firefighters as "radio to radio," in use in and around the building, so I believe two distinct systems or methods of tactical comms are now deployed by the Department.
A repeater in Chiefs' vehicles makes the most sense to me. Although if it's not reporting to the EDACS, (and as far as I can tell it's not) where is the repeated traffic going? I still wonder if an IP-based (Internet Protocol) system is now in use...
...which would render monitoring them with current gear impossible... unless you get their IP address... and encryption key... without breaking any laws... sigh.
Thanks again everyone! I have faith we'll know what's up sooner rather than later.