Ah Ok. I see there are two sites, Coming from the SW of your location. Tennesse/Kentucky Line?This was A63. I think it was coming in with the SW band opening, just not sure who/where.
BGAD is 1F4. I ran out of time but was picking up what appeared to be a second site for 1F4 (unrelated to A63)
Possibly the Milan Army Ammunition Plant in Milan, TN? Nothing in the DB and it fits the correct band.