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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