Stefan wrote:
> I plan to transmit on 8,9700 kHz...

> during the test i make QSY of some Hz if the RXing station
> has a carrier/line on this QRG.

Here's a live spectrum for 8970 +/- 1Hz - resolution is 5mH.
Amplitude calibration is only within a factor of two or so.

 http://abelian.org/vlf/nb.shtml

> do you know other members in the VLF group who live near
> frankfurt?

Ich habe die Frage gestellt.
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Paul Nicholson
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