Hi Stefan What you are seeing is natural. See this paper: http://www.vlf.it/naturalnoisefloor/naturalnoisefloor.htm 73 Scott VE7TIL Scott, i just took a look on your VLF grabber and saw the sferics a
Hi Scott, VLF, Scott, i just took a look on your VLF grabber and saw the sferics are interestingly (clear!) attenuated in the range of 1.3 and 3 Khz. There is a sharp limit where the sferics are not