Since 23 UTC a 700 mA carrier is running on 17.4701 kHz
It is a little surprise to the VLF community i think ;-)
Legal? Yes: http://www.iup.uni-heidelberg.de/schaefer_vlf/VLF/17,47kHz_Sonderlizenz.jpg
Actually the document has 3 pages but the other ones are
My ERP is limited to 5 mW. I did not request more because
possible anyway with this antenna.
I wound a big single layer coil with 0.5 mm enameled wire
on a PVC tube
with 315 mm outher diameter.
0.7 A is just a first careful step. The coil is designed
to hold 1.5 A
The carrier will run the whole night and even tomorrow at
Worldwide reports are welcome ;-)
It is not sub-9-kHz but still VLF, the 17 km band!! So
give it chance
The tree has still some solar power to stream the signal
from the EW
loop down to the city, so there is a feedback spectrogram
PS: I still can hear that tone of the coil. It is
terrible! Be happy
when you are older than me!