Re: VLF: DK7FC, DF6NM

[Wolfgang Büscher <dl4yhf@freenet.de>]

Nice signal here from the begin of Stefan's transmission. Later, strong 
QRN, and it takes a lot of imagination to see something like a "K" in 
DFCW around 13:30 UTC (15:30 local time on the screenshot) which may be 
from Markus DF6NM .
In the screenshot, one can see the effect of the 'hard limiter': Before 
14:30 it was off (-> screen almost 'whitened' by QRN), and after that 
all pulses exceeding the average level by 3 dB were limited (clipped, 
not blanked) to that level. Not sure if the noiseblanker (instead of the 
limiter) would have been better.
73,
 Wolf DL4YHF .