LF: MF propagation...

[Stefan Schäfer <Stefan.Schaefer@iup.uni-heidelberg.de>]

Jan, MF,

Am 16.06.2012 22:23, schrieb pa3abk:
> FYI I have H24 solid CW QSO with g3xiz  mostly S-7/8 about same 
> distance both using about 100W.
I can hear G3XIZ very well on the Delft web sdr. It looks to me like the 
ground wave reaches much much wider above sea water. The effect seems to 
be extreme on MF, even more than on LF or VLF. Is this possible, i mean 
can you confirm it?
Oh, that would explain why all the vessels used 500 kHz for such a long 
time :-)
That would explain why you can hear G3XIZ H24, since you are much closer 
to the sea than me.
Here on the land the situation looks to be quite different during the 
daytime...
73, Stefan/DK7FC