R: Re: LF: RE: RE: Almost touching the ground... | 12.47 Hz

["marcocadeddu@tin.it" <marcocadeddu@tin.it>]

... amazing
I fear what can arrive on April 1st :-D if somebody had told to me some years ago about amateur communications on 137 kHz probably my opinion had to be somewhere between lot of doubts or lot of humour..
in the last few months, almost every week or couple of weeks comes an announcement of new tests on lower frequencies..

keep on Stefan! ;-)

Marco, IK1HSS

P.S. I know that someone in the Pentagon and in Kremlin can now breath better.. Stefan is now an octave below :-))

----Messaggio originale----
Da: selberdenken@posteo.de
Data: 13-mar-2019 14.54
A: <rsgb_lf_group@blacksheep.org>
Ogg: Re: LF: RE: RE: Almost touching the ground... | 12.47 Hz





Am 06.03.2019 22:11, schrieb DK7FC:
>   
> Currently i'm generating a spectrogram in SpecLab, running on a wav
> file (mono, resampled to 240 S/s) that covers 8 days of the carrier
> transmission on 12.47 Hz. It is set to 22 uHz FFT bin width and 3
> hours/pixel scroll rate :-) Since SpecLab can do it in real-time only
> it will take 8 days to complete the spectrogram, but never mind, we
> have so much time, don't we?! I will show the result in a week then ;-)

Spectrogram completed, attached. Despite some QRN, i would call it O
copy and it looks like a higher distance would have been possible.

73, Stefan