[Elecraft] [QRP-L] RIGblaster Advantage for Serious Digital Modes with KX3?

Don Wilhelm w3fpr at embarqmail.com
Tue Sep 17 10:17:50 EDT 2013


Craig,

The easy way is to obtain the KX3-PCKT cable set from Elecraft. That 
will allow connection between the KX3 and a soundcard.  For computer 
control and frequency readout from the digital application, you can use 
the KX3USB cable that was supplied with your KX3.
Yes, the Elecraft cable set has a cable for the RX I/Q and the ACC2 
cable that are excess for your purposes, but the audio cables have right 
angle plugs on the K3 end which keeps the cables out of the way.  You 
could just use a couple of regular audio cables with 3.5mm stereo plugs 
instead.

If you find excessive noise on the audio between the soundcard and KX3, 
you might have to add isolation transformers - that would be your 
"interface unit".  You can obtain suitable transformers from Radio Shack 
and many other places.  I have used the transformers salvaged from old 
computer modem cards with success (see my website www.w3fpr.com).

I don't know the provisions you have on that computer for soundcard and 
USB, but you will need line level input and output on the left channel 
(tip) as a minimum.  The right channel is not used for digital modes.

73,
Don W3FPR

On 9/17/2013 9:40 AM, CRAIG W BEHRENS wrote:
> I'm looking at different approaches for a compact interface unit to use with my KX3 and MicroSoft Surface Pro Tablet PC.
> The KX3 has some neat built in features for light field use, but I need to be set-up for serious DXpedition use with the digital (and other) modes.
> Anyone have any experience in this area that could help me pull such a system (or similar approach) together?
>
>



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