ULF: A new band is opened up! 191 km

[DK7FC <selberdenken@posteo.de>]

Hello ULF friends,

I just opened up a new band by starting some activity on 1570 Hz ! It is the 191 km band! :-)

Since 8 UTC a carrier is running at 1570.01 Hz. Soon the first trace will appear on a spectrogram from my tree which is in 3.5 km distance from the transmitter.
See the developing trace at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html
The spectrogram scrolls with 10 minutes/pixel.
The carrier will stay on the air for 2.5 hours. It is just a first test. So far the antenna current is just 27 mA but tonite i'll try to reach the target level of 58 mA which means 12 kV again acros the special iron cored coil. This will mean about 120 nW ERP then.

DL0AO is already watching the band. I hope to be received by Paul and at the reomte site of DL4YHF. I'm not planning to do /p RX experiments on that band, just focusing on these 3 RX stations.

73, Stefan