[Elecraft] P3 vs SDR-IQ

[Hank P]

Joe - I use  "Fixed Tune" mode because I just like that display the best - 
BUT I just checked "Tracking Mode" and I see about a half S unit noise when 
I tune - I do not see any in "Fixed Tune" . UNLESS I look with the K3 on a 
dummy load so no external antenna noise at all.  Its visible there but 
never with an antenna connected.

I will say that it got worse when I put in the KAT3 so I had two front panel 
selectable antenna ports - I originally started with no antenna tuner in the 
K3. I suspect if I went in and played with TMP cable dress some more or 
double checked grounding I might be able to improve that - but its no 
problem.

Also , there is a thing to do that sometimes reduces tuning noise (although 
tuning noise form the synths may not be the issue here ) but FWIW

Here is a paste of what Elecraft suggested  (did not make much difference 
for me)

>>>Hank - Please try this for the "noise"
>>>Locate the CONFIG:VCO MD menu entry, and tap the 1 keypad switch until 
>>>you
>>>see SPI 2; this selects the new bus clock rate. (The default setting is
>>>SPI 1.)


73 Hank K7HP

>I have been using a P3 with my K3 for the last two weeks and not happy with 
>it's
> operation. I set the parameters to what I like, the patterns look
>good, but when I tune the screen fills with noise and you can not see the 
>signals up
>and down the band.