Which operating system?
Most soundcards will default to monitoring on the line input.
If you're using Vista or Windows 7, open the Audigy 2 ZS Speakers.
Select the levels tab and make sure all of the devices below
the line (all of the inputs) are muted. In Windows XP, I think
you need to open the "Advanced" features and turn off "monitor
while recording" (or select "do not monitor while recording")
or something similar.
73,
... Joe, W4TV
On 7/3/2010 7:56 PM, GD0TEP wrote:
> Hi to the group,
>
> I have connected my K3 to my PC so I can use WSJT, my sound card is the
> 'Sound Blaster Audigy 2 ZS Audio'
>
> I seem to have some sort of audio feed back when I get the radio to TX.
>
> The sound card output is directly connected to the K3, and for the moment
> PTT keying is via a USB micro ham unit.
>
> When I use the microham device router to test the system by TXing a test
> signal (standard single tone) all 'appears' to be OK, but, what I hear (from
> the monitor in the K3) is a little distorted, and this distortion gets worse
> the higher the MON is set at (currently at 10) once MON goes higher than 15
> or 16, I can hear distortion.
>
> I thought it was perhaps an issue with the sound card, so I've tried the
> 'built in' card on the PC and there's no difference.
>
> My next thought is that it's a setting I'm missing within the K3, but I
> can't see what...
>
> MON = 10
> LINE = 36 but altering this doesn't affect the signal distortion
>
> There also appears to be a delay in sending tones from WSJT, I'm sure that
> this is a software issue, but in this delay there's about a second of what
> can only be described as hash.
>
> Anyone got any suggestions on what I can check next??
>
> 73,
> Andy
> http://gd0tep.com
>
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