AlphaFive
Member
I'm putting this here instead of the Federal Forum due to the fact that this particular signal I located, is at full strength here in Asheville, easily received. 150.0750 is indicated as P 25, received conventionally with an NAC of 293. It is encrypted full time. The nearest candidate for the frequency is a repeater for the D.O.D. 14(C) system out of the Navy Weapons Center in Crane Indiana, unlikely.
I have run the following tests using an I.F. spread for the BCD536, a likely suspect arose at 415.625. It is a conventional BM for the Coast Guard Nationwide UHF system, does have an NAC of 293. Using an I.F. spread for the Pro 197, I find 171.475, there are multiple listings for the National Park Service, no NAC 293 is listed for any, they consist of PL's. If I accept that the I.F. could be off a few decimal points, I locate 171.775, also National Park listings, and an NAC of 293.
I have run 150.0750, the actual hit, as a P25 trunked system, inputting the channel. I have run 415.6250 as a P25 system, inputting the channel.
After several hours, running all frequencies as conventional, and the trunked systems, the only results are consistent activity on 150.0750. Since nothing else shows up, I can only conclude that there is an undocumented use of 150.0750 in the Buncombe County area. Maybe others have some more knowledge about this.. let me know, take care.
I have run the following tests using an I.F. spread for the BCD536, a likely suspect arose at 415.625. It is a conventional BM for the Coast Guard Nationwide UHF system, does have an NAC of 293. Using an I.F. spread for the Pro 197, I find 171.475, there are multiple listings for the National Park Service, no NAC 293 is listed for any, they consist of PL's. If I accept that the I.F. could be off a few decimal points, I locate 171.775, also National Park listings, and an NAC of 293.
I have run 150.0750, the actual hit, as a P25 trunked system, inputting the channel. I have run 415.6250 as a P25 system, inputting the channel.
After several hours, running all frequencies as conventional, and the trunked systems, the only results are consistent activity on 150.0750. Since nothing else shows up, I can only conclude that there is an undocumented use of 150.0750 in the Buncombe County area. Maybe others have some more knowledge about this.. let me know, take care.