[Lf] WAV files ?

[Andre' Kesteloot]

Thanks Geri, for your efforts,
I am passing your reply to the local fellows here, and they may decide
to deal directly with you, rather than me being the "switch"  :-)
73
Andre' N4ICK
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"'Geri' Kinzel, DK8KW" wrote:

> Hello André
>
> >Attached (in two separate messages) two  files for your inspection !
> >(I feel as if I were sending one of my oriental carpets to Sotheby for
> >appraisal  :-)
>
> It's difficult to judge, but for me it looks like a stabil carrier, maybe
> the slighty highlighted areas of that signal show the data bursts of DCF39,
> however, that is just speculation. The other carriers look like
> Loran-lines.
>
> Is there any possibility to have someone record a WAV file so that I could
> analyze the signal myself with Spectran or Spectrogram? It might be helpful
> to get a WAV file of the carrier frequency (138.830 kHz) and the mark
> frequency (139.300) so that we can see if there are any data busts that can
> be identified. Or, it might be nice to have a file with slightly large
> bandwidt (500 Hz) and have both freqencies recorded in one single file. If
> the signal is really close to audible detection, it should be possible to
> filter these two frequencies from the original file.
>
> We should ask the guys running that transmitter to switch to Slow-CW ...
>
> btw: there is some information about that transmitter and what it does on
> http://www.efr.de, unfortunately only in German.
>
> Best regards
>
> Geri, DK8KW (W1KW)