[Elecraft] RX IQ sound card problems KX3

[W9TTW Tabb Adams]

Right I just have the RX IQ plugged into the sound card not both, strange that I don't have problem when I am just using it for digital modes. Just got another email that another ham was having the same problem. 

Sent from my iPad

On Jan 11, 2013, at 7:02 PM, "Peter Eijlander (PA0PJE) [via Elecraft]" <ml-node+s365791n7568568h8 at n2.nabble.com> wrote:

> OK, so I suppose when you move the line-in level to zero the noise from 
> the computer speakers go to zero as well. 
> 
> Check if not by mistake the microphone is used as input for HDSDR. 
> 
> You cannot use the phones output in combination with HDSDR, the program 
> expects the I and Q sigs on the respective left and right channels of 
> the sound card's line input. The output from HDSDR should then in turn 
> be routed to the computer's speakers. In fact the line input also 
> affects the reading on the S-meter in HDSDR. 
> 
> The large "carrier" looks to me as the hum you describe, for that would 
> be seen as a carrier close to the center frequency displayed. 
> 
> If you unplug the I/Q output on the KX3 and touch the tip or ring on the 
> plug you should be able to see and hear that action in HDSDR. 
> 
> 73, 
> Peter - PA0PJE 
> 
> W9TTW Tabb Adams schreef: 
> > Yep it is on in the menu, when I bring up the display on HDSDR there 
> > is a large carrier in the center of the display same noise I am 
> > hearing when I plug the RX IQ into the sound card. Strange thing is 
> > when I just use the phones output from the KX3 I don't get the noise 
> > just when I plug into the RX IQ port. I can work digital modes just 
> > fine with no noise. 
> > 
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Tabb W9TTW
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