[Elecraft] Suggestions for good 192kHz external sound card fordigital modes

[dmoes at nexicom.net]

 Im just curious

I can see the bit depth making a difference   16 bit will have poor 
dynamic range compared to 24 or 32 bit  and this is important for some 
modes like wspr or JTXX,   but is there any advantage to high bit 
rates in digital modes    even a 44khz card has a bandwidth way beond 
what any digital mode on HF needs.        or is it that to get a 32bit 
adapter just by default it will have high bit rates.

David Moes
VE3DVY


On Tuesday 11/11/2014 at 7:08 pm, David Orman  wrote:
> Hi,
>
> Splitting off from the Signalink thread, since it's actually a 
> different
> question, what are the current external sound cards that people 
> suggest
> (that are supported in Linux if known - if not - that's ok)?
>
> I see the Tascam mentioned in the PDF in the other thread, so I'm 
> looking
> into those (the ones that support 192kHz now, that is) - are there any
> other suggestions to look into? I operate on a lot of digital modes, 
> but my
> Lenovo Thinkpad T400's built in sound card adds a lot of noise to the
> signal I'm receiving. I have a Native Instruments Audio Kontrol 1 
> which
> works much better, but it is USB powered (it seemed to be indicated 
> this
> was a no-no for best decoding in digital modes in the other thread).
>
> There are a lot of options out there now, so it's hard to sift through 
> them
> all, and make a guess as to which are best for HF radio digital
> communication, so I thought a thread would be helpful in getting some 
> ideas
> on what is tested/true. If Linux support is unknown, that's ok - I can 
> do
> that research - but it would be great to have a list to start looking 
> at
> that are known good performers with low noise.
>
> Thanks!
> David/K5DJO
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