Pro-92 should be fine.
Hi Doc, Your Pro-92 should be able to follow the Racom system just fine. I'm not from the area but I do have and use a 92, they do follow EDACS systems like Racom. I just took a look in the database and it looks like most everything listed for Black Hawk County is analog so you should be able to follow your local traffic. You would know much better than I what site to program for your area, be sure to enter all the frequencies for that site (in proper order) and start in channel 001 (or 101,201,301, etc depending on what bank you use). Of course programming is easier using Win92 (it's FREE!) if you have a cable, it unfortunately doesn't support web import from the database like most of the newer programs do but it does make life easier typing on a keyboard as opposed to the scanner keypad. Also be sure to set each of the frequencies and the bank they are in to "ED" mode.
I'm sure there are some locals that may be able to add to this or make some recomendations for some other interesting traffic you may want to hear.
Good luck and let us know how you do.
Tom