Hi Stefan if you are thinking of NMEA for timing I think you will find it
inadequate Andy did some work on this many years back and I believe he found
there was an inconsistent delay in the NMEA strings ...... differences of up
to a second I believe. One the Oncore boards from Motorola he found the
Motorola proprietry comms was much better. NMEA is only intended for
transmission of data between instruments in relatively slow moving vessels,
so that sort of uncertainty is not really an issue.

Alan
G3NYK

----- Original Message ----- 
From: "Stefan Schäfer" <[email protected]>
To: <[email protected]>
Sent: Tuesday, May 10, 2011 10:27 AM
Subject: Re: LF: Spectrum Lab Filtering...


> Wolf,
>
> Thanks for the excellent service, once again!
> I just downloaded the new version on the LF PC and will install it
> separately. I'll test it with Markus in CW and will give you a feedback
> here.
>
> BTW what about the NMEA GPS communication? Does it already work
> sufficiently? I would have problems to run my grabber PC at 10 SL
> instances in stereo mode but when beeing /p TXing, it would be a great
> improvement!!!
>
> 73, Stefan/DK7FC
>
>
> Am 09.05.2011 22:39, schrieb wolf_dl4yhf:
> > Hello Scott and Stefan,
> >
> > I have just uploaded yet another 'beta' of spectrum lab (V2.76 b24) to
> > this site:
> >
> > http://dl4yhf.ssl7.com/speclab/install_speclab_beta.zip
> >
> > The automatic multi-notch filter now has up to three adjustable
> > frequency ranges. If none of the ranges is selected, it operates on
> > the entire spectrum (in the passband). The active ranges, if any, are
> > displayed by red horizontal lines in the filter control window (the
> > graphic part).
> >
> > BEWARE: Keep a copy of your old version ! I made so many changes in
> > the code (mostly for the GPS-sync) that there is the risk that older,
> > less frequently used (and rarely tested) functions don't work with
> > this version. If so, please let me know.
> >
> > All the best,
> >   Wolf .
> >
>