I see them too! Whatever it is, it's a big gun. http://people.physics.anu.edu.au/~dxt103/grabber/ 73, Dimitris VK1SV 2011/10/28 pws <[email protected]> Hi Stefan, Thanks for hint! You wrote: What
What are these lines arround 21.5 kHz, visible on several VLF grabbers ?? Has anybody seen that before and knows its origin? 73, Stefan/DK7FC http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_G