[SADXA] Is thic true or false?

[D Andersen]

Hi Wes,  Very interesting.   DA 
 
> To: sadxa at mailman.qth.net
> From: wes at triconet.org
> Date: Mon, 7 Sep 2015 13:36:22 -0700
> Subject: Re: [SADXA] Is thic true or false?
> 
> On 9/7/2015 12:42 PM, Gail N7BXX wrote:
> > This post is giving us something to do during the lousy band conditions.
> >
> >
> I've got plenty to do.  I'm comparing transmitter IMD between my Elecraft K3 and 
> the new K3S.  IMD v. power v. Frequency.
> 
> Originally, I thought they were hugely different in favor of the "old" radio and 
> pointed this out to Elecraft.  I got a lot of info in return including the fact 
> that IMD is highly frequency dependent.  I had been testing at one frequency.  
> When I started looking at other frequencies, I learned that I had 
> serendipitously found the "sweet spot" on the old radio.  Now I see that they 
> both vary all over the map, depending on power, frequency, temperature and 
> probably the phase of the moon.
> 
> A swept frequency spectrum analyzer would sure speed this up; I'm using an 
> SDR-IQ, one frequency at a time.
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