I took a tour of that facility back in the early 80's and unless something has changed, I would have to say that they dispatch via landline from the tower. It's almost a given that there is a dedicated line from the sheriff. Just an aside, did anyone ever go to the airport with the scanner, park nearby and watch and listen to the snow removal ops? I couldn't yesterday but many times on snowstorm weekends yours truly has done that. Obviously, in the days before 9-11, you could walk up to the gates inside and have a "front row seat" inside and watch and monitor the show.
Do you know if they are dispatched by the sheriff and do they tone out? Also, I still have not heard anything on 33136. I know it's slow there but how often do they use their radios?
The ARFF as of ~2000 was dispatched via landline...voice, klaxon and all. If a unit was out of the station, they were alerted via radio. Their VHF gear was mostly Syntor X9000's which are not narrow-band capable, so as A1EMT said they will be gone sooner rather than later.
They'll probably move to the Milwaukee County TRS system at some point.This has been covered but I still find it amazing that 2 private shopping malls are on it but only the Sheriff at Mitchell is on there. Oh well. You are right though, 155.865 and 154.875 come in pretty good all over the county. I put the PL tones on them and turn the squelch up and I can pick it up (even the mobiles) with only the rubber duck and I live in the west central part of Milwaukee.