In BARTG Sprint, I ran the EMU-0202 on one radio and the motherboard
soundcard in a 20-year old 400 MHz PC on the other radio. I couldn't tell
any difference in decoding between the two. I've never found soundcard
"quality" to be an issue with RTTY, but I can believe it would matter for
some of the other digital modes.
Ed - W0YK
> -----Original Message-----
> From: rtty-bounces@contesting.com
> [mailto:rtty-bounces@contesting.com] On Behalf Of Iain
> MacDonnell - N6ML
> Sent: Wednesday, 04 February, 2009 20:37
> To: Robert Chudek - K0RC
> Cc: RTTY@contesting.com
> Subject: Re: [RTTY] Affordable PCI sound card recommendations?
>
>
> Hi Bob,
>
> The problem was that weaker signals were not decoding
> (cleanly). It's difficult to quantify, but judging by ear,
> the signals should have been strong enough to fully copy.
> Changing from the on-board - most likely AC97-based (I'm not
> at the site now) - interface to a couple of different USB
> devices (an EMU-0202 and a Griffin iMic2) cleared the problem
> right up - those weaker signals started decoding just fine.
>
> I think I'm going to go for something in the sound blaster
> line. I'd like to have something that does most of the work
> in hardware, rather than a software codec - it just seems
> like that might be more reliable.
>
> Thanks for the input... and for Qs in a bunch of recent contests :)
>
> ~Iain / N6ML
>
>
>
> Robert Chudek - K0RC wrote:
> > "We've tried the on-board audio with MMTTY, and had major problems
> > decoding."
> >
> > What were the major problems you experienced decoding?
> >
> > To answer you question, virtually any soundcard will provide good
> > results. The SB Live! series work well.
> >
> > 73 de Bob - KØRC in MN
> >
> >
> > ----- Original Message ----- From: "Iain MacDonnell - N6ML"
> > <ar@dseven.org>
> > To: <RTTY@contesting.com>
> > Sent: Wednesday, February 04, 2009 9:38 PM
> > Subject: [RTTY] Affordable PCI sound card recommendations?
> >
> >
> >>
> >> I need to outfit a number of WinXP PCs at a contest
> station for RTTY.
> >> We've tried the on-board audio with MMTTY, and had major problems
> >> decoding. I got around this for the last contest (RU) by using
> >> external USB audio interfaces, but want to install
> something internal
> >> in each PC to make it permanent. I've seen a number of
> Sound Blaster
> >> Live! options on eBay in the order of $10-15 shipped, but
> thought I'd
> >> ask here if there are any particular models that work well, or are
> >> known to not work well for RTTY decoding (and maybe AFSK transmit
> >> too).
> >>
> >> TIA for any recommendations...
> >>
> >> ~Iain / N6ML
> >>
> >>
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> >> RTTY@contesting.com
> >> http://lists.contesting.com/mailman/listinfo/rtty
> >>
> >
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