I have been monitoring the Lexington Fire Department on the local EDACS system since "Day One" on the system back in 1999 (or maybe it was 2000). Anyway, I have used a variety of scanners. Overall, the system initally did not get out very well. If you lived outside of New Circle Road like I do, it was very difficult to monitor on most scanners.... There just was not enough signal for them to track properly. Several improvements have taken place over the years which have really helped in the monitoring of this system. One thing that really helped me was getting the Radio Shack 800 MHz rubber duck antennas for the handhelds. The system itself, has been upgraded with multiple sites to fill in all the "holes" in coverage. This has really helped. Also, it should be mentioned that some scanners definitely work better than others. Here is my experience living OUTSIDE New Circle Road (almost in Jessamine County) regarding listening to the Lexington EDACS system and the scanners I OWN.... OR HAVE OWNED:
Radio Shack Pro-92....A real clunker with POOR sensitivity at 800 MHz. I still have this antique because it is good for the other bands.
Radio Shack Pro-94....I have had TWO of these (early and late version) and find them to be THE MOST SENSITIVE FOR 800 MHz trunk tracking. Downside: this model offers little in the way of "features" like Alpha tagging etc., but as a true radio, they work well at 800 MHz and I find them easy to program.
Radio Shack Pro-97....Almost as good at the Pro-94 as far as sensitivity goes, but more difficult to program manually. This scanner has lots of nice features, too.
Radio Shack Pro-2052 (desktop model)....Virtually useless at 800 MHz where I live unless I connect to an outside antenna up about 40 feet on my ham tower.
Again, these comments apply to the Lexington EDACS system only with the scanner models I am familiar with. I program ALL my scanners manually.
Bottom Line: The Pro-94 and 97 models work well for me, even at my location. The only place where I have any luck with the Pro-92 is at my office which is located within eyesight of the UK campus, home of one of the sites for this system.
Programming errors are probably the most common problem I see with people claiming they can't get their scanners to work on the system. LCN order is critical. Check to see if all frequencies are "open" and not locked out.