Message-ID: <38064879.EAA25B4@virgin.net>
Date: Thu, 14 Oct 1999 22:17:46 +0100
From: "Stewart Bryant" <stewart.bryant@virgin.net>
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To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Des and slow cw test
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Actually you don't need full blown specrogram to start up on a timer
you just need a program that starts up on a timer and captures a  .wav
file, which you can then feed into spectrogram at your leasure.

I need a utility that does this for the reverse beacon work that I
spoke about at the HF convention. If anyone knows of a utility
I would be grateful for the pointer, otherwise I will have to write
it myself.

73

Stewart G3YSX

Alan Melia wrote:

> Hi Des, I left FFTDSP waterfall monitoring 136 for me whilst I had my beauty
> sleep (at my age I need all I can get!). Your morse was just a little too
> fast for my settings, which were set for a 3 second dot regime (I think that
> approximates to about 0.4 wpm, I seem to remember that there are 47
> dot-equivalent elements in a standard word) Nevertheless your call was
> readable here with some 'foresight'  applied. and a locator of IO93OJ was
> copied (without cheating). The crashes were quite low but were carving you
> up a little such that I initially read your call as M0ALF. Spectrogram would
> be much better under these circumstances but it is a lot more profligate
> with the disc space (I'm running an old machine with a fairly small disc). I
> must find a way of getting it to start up on a timer schedule without the
> menu coming up. (Any ideas?? you computer whizzes)
> I noticed your call started at 0520z on 137.450kHz, and drifted up to
> 137.535 during the course of the transmission. I think I recognised a hand
> speed call later further down the band with the same drift noticable. It was
> not a problem to me as I was viewing a 1.2kHz slice of the band. I think you
> would have been readable in a 500kHz filter here on hand keyed morse. Hope
> you got a result from Peter
> 73 de Alan G3NYK  in JO02PB
> Alan.Melia@btinternet.com