Hi Alan, 
 
I'm not an expert of such communication formats but i totally trust the skills of Wolf. Before some years i think most people would have said that it's not possible to use MSK transmitter signal as a "quasi perfect reference signal" and now we have this function included in SpecLab, which allows us to display and generate DFCW-60000 and maybe slower... 
 
Let's see what he will perform magic soon! :-) 
 
73, Stefan/DK7FC 
 
Am 10.05.2011 12:22, schrieb Alan Melia: 
> 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 . 
>>> 
>>> >> >