> ...On FM and AM when I trigger the VOX I get the "ERR TXF" message. > I have a K3 with 12, 2.7, 500, 200 filters beginning at slot 1. The FM filter in slot 1 must be set to 13.0. I am uncertain if AM Tx is supported with any filter other than 6 kHz at the moment. 73, Lyle kK7P