[Elecraft] Elecraft KX3 IQ out and spectral display pograms

Phil Wheeler w7ox at socal.rr.com
Sun Dec 21 21:14:30 EST 2014


I've used my KX3 with the Tiny Python Panadapter I 
built per the April QST, using an iMic USB audio 
card on the I/Q outputs, and it worked fine -- 
within the limits of the design and the Raspberry 
Pi I used.  Nowhere near as nice as the PX3 I'm 
using now when I operate the KX3:-)

73, Phil W7OX

On 12/21/14 5:41 PM, Edward R Cole wrote:
> When I first got my LP-Pan and read the manual 
> (doesn't everyone do this?), I found it strange 
> that the audio outputs had  the ability to lift 
> grounds (apparently to reduce noise/ground-loop 
> issues).  I guess I must be doing something 
> right as I did not encounter any hum or noise 
> issues with audio shields grounded.
>
> In the early years of building radio-computer 
> I/F boxes (HB) it became quickly evident that 
> isolation transformers solved a lot of these 
> "grounding issues".
>
> I read your presentation, Jim, and gives me a 
> laundry list of things to check.
>
> 73, Ed - KL7UW
> http://www.kl7uw.com
>     "Kits made by KL7UW"
> Dubus Mag business:
>     dubususa at gmail.com



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