[QUOTE=follow40;137558]Thanks for the reply, you sound like an expert.[/QUOTE]
Far from it and I wish an expert would chime in. The lower frequencies can do strange things at twilight.(grey line propagation) Atmospheric noise also increases in the summer and lower latitudes. At MF, I’ve heard reverberation in signals caused from receiving them short and long path skywave simultaneously.
A few of us can still remember manually locking on to a loran A or C signal on a CRT. The skywave trails were visible on the CRT.