- Feb 3, 2017
I don't do a lot of aviation scanning, but I've lately become interested in UHF RCAG's. From Atlanta, I listen to 317.700 in ZTL sector. I use a BC 125 indoors w/ portable antenna. Does anyone know why this frequency would be active on some days and then go for a week or two with nothing? Is it related to atmospheric conditions or is the transmitter only active part-time? I've noticed similar behavior on another frequency.