[Elecraft] KX3 I/Q output for pandapter

[Mike Heitmann]

Buck, 

I've had results similar to what Tony describes. I'm using a external Griffin 
iMic as the soundcard. It  works well, and I have been able to use a Virtual 
Audio Cable (VAC) to  route the NaP3 audio to a 3rd party digital mode 
application (I use  Fldigi). You still need an external cable to route the audio 
from the soundcard output to the mic input of the KX3, you can't use a VAC for 
that. It works just about like  my Flex radio does configured that way, except 
with full break-in CW!

My Flex-1500 is looking for a new home now.

Mike, N0SO



----- Original Message ----
From: Tony Estep <esteptony at gmail.com>
To: Elecraft <elecraft at mailman.qth.net>
Sent: Thu, August 2, 2012 9:08:08 AM
Subject: Re: [Elecraft] KX3 I/Q output for pandapter

On Wed, Aug 1, 2012 at 9:40 PM, Buck k4ia <k4ia at aol.com> wrote:

> ...the signals are not there - just images....

==========
Buck, I have NaP3 running with my KX3, and it works fine. Set the global
offset to 0. NaP3 will automatically balance images if you give it a strong
signal to work on. I use my XG3 to put in a signal of S9+20 and tune the
KX3 about 20 khz above the XG3 signal. You'll see two spikes, but
eventually the right-hand spike will diminish. You can move the tuning
around a bit, and finally you'll see the image drop to 40db or even more
below the correct signal. When an antenna is connected, the images will be
invisible in the grass.

The cable that carries the I-Q has to be stereo 3/32" on one end and stereo
1/8" on the other end. If something is shorted in the cable, that would
cause the symptoms you describe.

Anyway, I assure you that it does work and that in fact it makes an
excellent SDR. Once you get it going, you'll love it.

73,
Tony KT0NY