The Natchez Trace Parkway is using 165.6000 MHz with APCO P25, but I'm not convinced yet that this frequency is on a nearby tower (Mynot, Al. at 8 miles). The old frequencies; 171.6750 MHz was in Tupelo and 171.7750 MHz was at the Mynot tower. I live 60 miles from Tupelo. 165.6000 MHz is mediocre and should be full scale here. I'm still searching. There is activity on 169.6750 with a rather strong digital type signal, but it won't decode. I did hear an APCO P25 signal on 166.2375 rather strong late tonight. I'll continue to monitor for stronger sigs.
I'm using the new Uniden BCD 396T connected to a 10 element 2 meter vertical yagi at 65'. Actually I have two, one beamed east, one beamed west. I used them a couple years ago for my 2 meter ham packet DX Cluster reception. When the weather cools, I'll install an omni-directional scanner antenna on the tower.
If I hear any other Natchez Trace active frequencies, I'll post. Tnx.
Jeff D.