You do not need an exotic soundcard for digital modes, most any will do.
The big thing to pay attention to is the noise level, which may or may not be specified.

The soundcards reviewed at www.telepostinc.com is a good resource, but those listed are for panadapter purposes, and need a wide bandwidth. That wide bandwidth is not required for digital modes, but if you have it, there is no harm done.

Many of the inexpensive USB soundcards will work fine for digital modes. As I indicated, the noise floor will define which card is better, not the bandwidth.

Soundcards for digital use (but not panadapter) can be found in the $25 and up price category.

73,
Don W3FPR

On 6/15/2020 5:47 PM, W6IPA wrote:
The matter is that you will send all the OS sounds to that interface (because 
you have only one)- and at this point you need to chase all the notifications 
what will be sending sound, and you cannot watch youtube anymore :-)

JC/W6IPA.

On Jun 15, 2020, at 2:31 PM, Wes <[email protected]> wrote:

What's the matter with the internal soundcard in your computer?

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