[Elecraft] P3 vs SDR-IQ

[Eric Swartz - WA6HHQ, Elecraft]

Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If 
you do, it has to stop averaging when the freq is being changed while tuning, 
temporarily raising the noise floor slightly. It then re-starts multi-pass 
averaging once you stop tuning. This is normal for signal averaging. I run with 
averaging set =2 or 3 passes. When I tune I barely notice a small increase in 
the noise floor.

If you have a lot of local pulse noise, you might want to turn on the P3s NB 
function to help.

If Averaging is turned off, I can't think of a normal scenario where the noise 
floor would go up when tuning the band. It certainly does not here.

Anyone else have any ideas?

73,

Eric
/elecraft.com/

On 7/30/2015 5:43 PM, Joe Word wrote:
> 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.
> I am told the SVGA option does the same thing. Have owned radios from
> Apache Labs and Flex
> and used the SDR-IQ/SpectraVue and LP-Pan panadapters and all of them
> do not have
> this problem. On SDR-IQ/SpectraVue the pattern smears some when
> tuning, but no noise.
>
> Joe  N9VX
>
>
> ------------------------------------------------------------------
> Has anyone compared the SDR-IQ as a panadapter with the P3?
>
>
>
> I am using the SDR-IQ now but would like to be able to use my entire
> computer screen for other displays during contests.
>
>
>
> Dave N1IX
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