[DaveNF2G]

The end users (fire crews) have no reason to know the frequencies, just which channels to select for what purposes. The only mobile radios you are likely to see accompanied by frequency lists would be ham radios, because a ham is required to know on what frequency he/she is transmitting.

Base stations should have a license posted nearby that will have frequency information. The catch is that, if they are operating under authority granted under a countywide or regional license, then they don't have to have a license of their own.

I can anticipate the next question: How do I find out what frequencies they are using?

There are several ways:

- search the "public safety" bands with your scanner

- use the Close Call, Signal Stalker, or Sweeper function if your scanner has one - for this you need to be close to the unit that is transmitting

- check the RRDB (I presume you have already done this)

- check any locally maintained scanner websites or listings

I think your original question was more concerned with the type of radios they are using, and the only ways to discover that are either to ask someone who uses them or to view the radios yourself directly.