I carried my HT-220 until we switched over to an 800 MHz analog Spectra-Tac repeater system. We had two separate channels; One was dispatch, the other tactical. We started testing it after installation in 1986, then it went into full-service in 1987. We had a main and standby transmitter for each channel, and five satellite receivers for both channels.
About 3-4 years ago, the PD I worked for went to DU-COMM for dispatch. DU-COMM put them on a UHF 470 channel with Lisle and Darien PD's. Then, they switched over to Starcom21 where they've been ever since. There are only two municipal dispatch centers in DuPage County. One is DU-COMM, the other is Addison Consolidated Dispatch Center (also known as ACDC). Naperville is with Aurora currently on an Open Sky system, but word is that they will be going P25 encrypted full-time on all police, fire, EMS, and public services.
One final note which is probably WAY off-topic for this forum is that the municipality I worked for is now using only one of the 800 MHz. repeaters, with no satellite receivers (as we had in the police service, with a JPS comparator).