I think the reason is that currently only the far east station is operating. See for example the WWLN spectrogram from Yakutsk, showing only one dash on each frequency: http://wwlln.net/yak/vlf.png h
Hi, I do transmitting on ELF occasionally on a frequency of 1.6 Hz using a 'Tesla' antenna, giving a global range (screenshot example from Kiruna, Sweden, attached). It is likely to be a 'QSB' fade o
Hi David, most interesting! - Could you give some more information about QTH, TX and "Tesla" antenna? Tu es 73, Tom, DK1IS Am 09.02.2018 um 21:44 schrieb David Hine: Hi, I do transmitting on ELF occa
Hi Tom, It's good to get your Email. The QTH is London, and the main reason I replied was to explain that VLF signals also go through QSB. It seems the lower the frequency, the longer the QSB. I'm no