Hello Tony,
nice to see a message from you after long time. I remember our QSO's on 137kHz in the late 90's.
Big antennas have the reputation of being poor RX antennas, maybe because they overload the RX.
Maybe a 30 to 50dB attenuator between antenna and RX might help.
About a separate RX antenna: if my memory does not fail there was a 137kHz test at big commercial antenna in the UK (maybe 10 years ago) where was reported that even a small RX antenna (loop ?) in the vincinity of the big antenna
failed to work because of unwanted coupling.
Best solution might be a RX antenna at some distance (some km) with a RF link.
73, Rik ON7YD - OR7T
Soon I may use a freestanding and isolated 125m mast with an excellent radial network for LF. Should I use a separate receiving antenna or try to receive also with the mast?
73 de Toni
