|
Stefan,
my impression was that ELF levels were slightly
stronger in daylight; for the 60 Hz "TA slot" this seemed to be during our
evening. But the diurnal differences were not large, maybe 2 or 4
dB.
73, Markus
Sent: Sunday, October 26, 2014 3:02 AM
Subject: LF: 60 Hz
Hi Markus, ELF,
Oh, maybe
you're right. The spectrogram is in 45 mHz and 5 s/pix scroll rate. Attached is
the recording in 11 mHz and 30 s/pix, see the long-term average graph, red. No
noise blanking was used in all spectrograms.
60 Hz, or Lambda= 5000 km. So
the distance is just about 1 Lambda! :-) I call it DX :-) What may be the best
time for that band on that path?
73, Stefan
|
|
