There is a product review in May 2007 QST, "Computer Sound Cards for Amateur
Radio". ARRL members can read the article at:
http://www.arrl.org/members-only/prodrev/pdf/pr0705.pdf
Bottom Line
"There are clear performance differences between inexpensive 16-bit sound cards
and the more expensive 24-bit models. For most digital mode users, any of these
cards will perform well. Software defined radios and other high-performance
applications will benefit from a high-end card."
Conclusions
"Most Amateur Radio sound card applications should work perfectly well with the
lower-end models. The 24-bit devices do have better specs, but very few
digital-mode apps are designed to take advantage of the higher precision. On
the other hand, critical applications such as software-defined radios can
definitely benefit from the superior noise, dynamic range, and distortion
characteristics of the high-performance cards."
If you can, I suggest you read the section, "A Real-World Test".
73 - Jim AD1C
--
Jim Reisert AD1C, 7 Charlemont Court, North Chelmsford, MA 01863
USA +978-251-9933, <jjreisert@alum.mit.edu>, http://www.ad1c.us
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