That can be removed with a high pass filter especially if you don't mind for the 160meters band. It can be done with three small toroids and high voltage ceramic capacitors. Just put externally. You might also try a notch filter that eliminates the offending frequency. Of course all this assumes that the MW broadcast does not emit spurs on the HF, in this case you could not do much
Il 05/giu/2018 07:26, "vu3jyt" <
vu3jyt@...> ha scritto:
The signals from MW broadcast.
