I am located in Barren, county, Kentucky. The audio is breaking at various intervals, I haven't checked how many seconds. My antenna is mounted on a metal pole which is 15 ft tall and secured to my wooden deck and is just above the gutter line on the house. I used cable tv coax for the wiring.
Pictures are worth a 1000 words. If you can post one, that might help.
Where I'd start would be looking at the coaxial cable and any/all connections. If it's old cable, suspect issues. Damaged jacket can let water in and will cause corrosion and poor performance.
Check all connections for corrosion. Make sure they are properly weather sealed with sealant/tape designed for the purpose.
Next, try a known good signal. See if you can hear one of the NOAA national weather service channels (162.400, 162.425, 162.450, 162.475, 162.500, 162.525 or 162.550) Is it clear and steady without dropping out?
Try taking your scanner outside and using the stock antenna, or connecting directly to the antenna using a new short piece of cable, see if it improves.
If this is a cable/antenna issue, you'll need to isolate sections of the system one at a time until you find the issue.
I suspect you could have damaged coax, corroded connections, damaged antenna, too much coaxial cable, or there's the possibility you are just too far out of the coverage area of the system you are trying to listen to.
