>> It seem like the ducting or whatever is worse this year than last year.
Bob,
If your ems ever had to reprogram the VHF radios, consider suggesting they change the input PL tone.
When short-range tropo is present, Conover PD (Catawba Co, NC) dispatchers will make it into your input. They also use 151.010 / 131.8 as a repeater input.
A little more enhancement will bring in Hardee County (Florida) sheriffs, who run their primary repeater channel out on 151.010 / 131.8.
And, from the west, I have also heard your repeater on 155.175 / 131.8 rebroadcasting Arkansas State Police motor carrier enforcement communications between patrol units and their dispatch center in Little Rock. Atleast one of their repeater channels is on 151.010 / 131.8 .