[Elecraft] P3 Feature Request - Transmit sampling

[Brian Alsop]

What if one defined the IF of the P3 to be at some PSK frequency and 
connect a loop of wire to it's RF input?  Put the loop on the desk.

There might not be enough resolution to clearly see anything but gross 
PSK signal infidelities.

73 de Brian/K3KO





On 9/24/2013 16:40, Edward R Cole wrote:
>
> I don't have a P3, so my curiosity is only academic.
>
> The "sampling function" being referred to, would bring a low power
> sample of transmit power to the P3?  This does not seem very difficult
> to "roll your own" sampler.  I gather the P3 has the needed RF ckts to
> receive RF and demod it, or is that also needed?
>
> I use LP-Pan with my K3. The LP-Pan only works in Rx so not really
> usable for analyzing the K3's own transmissions.  It will work to look
> at the KX3, of course.  AFAIK the K3 will not work in duplex mode.
>
> I also have a SDR-IQ, which makes a superb spectrum analyzer for freq.
> up to 30-MHz. The SDR-IQ only needs a small antenna to "sniff" enough RF
> to display the spectrum as wide as 190-KHz or down to <KHz if looking
> for IMD.  The SDR-IQ can be used as IF Rx for transverters to extend
> usable frequency higher.  I recently used it to analyze Sun noise
> performance of my dish on 1296-MHz and to measure insertion loss for
> some coax relays.
>
> Not usual for most ham stations, I also have a surplus HP141T with
> plug-ins for 0-1250 MHz and up to 26 GHz.
>
>
>
> 73, Ed - KL7UW
> http://www.kl7uw.com
> dubususa at gmail.com
> "Kits made by KL7UW"
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Checked by AVG - www.avg.com
Version: 2012.0.2242 / Virus Database: 3222/6194 - Release Date: 09/24/13