For years, the Lexington FD has had 5 frequencies assigned, but never used. These are 856.4375 thru 860.4375. They did use the 856.9375-860.9375 group when they merged into the existing UK system over 5 years ago. Have you noticed that the frequencies they want to add are UNDER 860 mHz? From my understanding, all frequencies above 860 mHz will have to be dropped in a re-alignment of trunked frequencies to cut interference problems. So, if this is correct, they will have to drop 860.9375 and 860.2625 from their current system and will be adding 856.4375, 857.4375 and 858.4375 to the system to replace the frequencies that will be lost in the re-alignment.
This is all a hunch, but does it make sense?