[Elecraft] P3 vs SDR-IQ

[Walter Underwood]

It seems like it would be possible to keep the averages for the old part of the spectrum and only start fresh in the new part. It would look odd for a bit, but it would be great for the portion that was not disrupted.

wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)

On Jul 30, 2015, at 5:56 PM, Eric Swartz - WA6HHQ, Elecraft <eric at elecraft.com> wrote:

> 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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