[Elecraft] USB Sound Card for digital modes.

[David Woolley (E.L)]

Kenneth A. Christiansen wrote:
> 
> I put Windows7 on my computer and for the most part everything is 
> working well but now I got around to using PSK31 and have a problem. The 
> waterfall will show a signal for just a couple of seconds but then the 
> signal goes away. I thought I had it fixed by turning off the noise 
> reduction feature in Windows7 but now as I try to use it I notice that 
> the signal input drops off just as though there is an auto gain feature 

The purpose of cheap USB sound adaptors is to support voice over IP from 
naive users, so AGC is very likely.  However, have you tried using the 
mixer control, as you may find that there is a tick box to disable the AGC.

> that holds the audio too low for the digital programs to work properly. 
> I can increase the gain in either the computer or the K3 but after about 
> 2 seconds the gain drops off.
> 

-- 
David Woolley
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