Andy,
Patrick is way ahead of all of us.
I forgot to mention that when I first installed the E2180 dual core
cpu/motherboard it only had 500GB of memory. The digital mode and SDR
applications actually ran OK and the cpu usage was quite low but the memory
shortage was very obvious when starting applications and changing the windows
on the screen such as when browsing the web.
The SDR-14 receiver is very interesting. I am curious what can actually be
done when scanning a 30MHz spectrum. It seems like scanning a 30MHz spectrum
fast enough to decode RSIDs would be beyond the capabilities of current PCs.
The next step in software that I would like to see is opening up the digital
mode panoramic decoding display to 5KHz or more. This would help to spread the
signals out a bit on 20 meters and/or open it up for more digital mode QSOs.
MixW actually does have dual receive capability in addition to the simultaneous
multiple mode capability. It is unfortunate that it does not have a panoramic
display or RSID decoding.
I am amazed at what some of the programmers like Simon and Patrick have been
able to do by themselves. It seems like these programs and and especially the
capabilities that SDR opens up can't possibly be one-person projects.
Ed
WB6YTE
--- In digitalradio@yahoogroups.com, Andy obrien <k3uka...@...> wrote:
>
> On Sat, Jan 30, 2010 at 9:08 PM, ed_hekman <ehek...@...> wrote:
> >
> >
> >
> > Interesting comments, Andy.
> >
> > My goal is also to be able to monitor all the digital portions of the band
> > and to be able to spot all call signs in any mode across the band. CW
> > Skimmer is a good model for that. In addition, it would nice to be able to
> > select a few segments of the band (~5 KHz span in each segment) and to be
> > able to select a few specific signals in each segment for continuous
> > decoding in various modes. As far as I know MixW is the only package that
> > can decode multiple modes simultaneously. PSDR and SDR-Radio allow the
> > selection of multiple segments (2 for PSDR, 3 for SDR-Radio) but the
> > integration with digital mode decoding is not built-in with the SDR
> > software.
> >
> >
>
> Ed, thanks. You are way ahead of me on this stuff. I have not tried
> "multiple segments" yet, that will be interesting to try. My maximum
> is 192 Khz at the moment. I expect that I will move to something like
> an SDR-14 in the future and have 30 Mhz capability at some point. I
> am glad I did not plonk down a hard earned thousand bucks to find out
> that the software isn't;really 'ready" yet, and that my PC's will
> need a major upgrade. So, I am happy with the learning curve at the
> moment and will be better prepared when ready to move up in a serious
> way.
>
> PSK "skimmers" are essentially already within FLdigi, Multipsk,
> Winwarbler, and DM780. Broadening PSK callsign mining to four of 5
> Khz segments should eventually be possible , and not very taxing.
> RTTY skimming during a contest might require several 100 kHz segments,
> that might be tougher than skimming the same bandwidth for CW signals.
> I suppose the serious digital mode skimmer would want to continually
> keep an eye on all PSK31 and RTTY signals just like the CW enthusiasts
> want all CW segments. If there were eventually PSK31 and RTTY
> skimmers, the remaining Olivia, Hell, MFSK16, and THOR signals would
> be something most would happily manually watch/listen for.
>
>
> Thanks for sharing your benchmarks.
>
> Andy K3UK
>
