[hpsdr] Panadapter scrolling in PowerSDR...

[n3evl]

Hmmm, no response...am I the only one noticing this behavior?

Pete



On 3/21/2012 6:44 PM, n3evl wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
>
> Re: PowerSDR v 2.2.3 (W5WC - 2/10/12) RX2 versus 2.2.3 (B) (W5WC - 
> 9/25/11)
>
> I've noticed an apparent change in the behavior of the Panadapter when 
> scrolling left or right when tuning.
>
> I typically run the Panadapter with some amount of averaging (750mS) 
> and typically use a 1KHz or 500Hz step size when using SSB.
>
> I've noticed when tuning/scrolling e.g. using the mouse wheel, that 
> the signal levels across the display area momentarily drop making it 
> hard to estimate if you've moved the mouse wheel enough clicks to 
> bring the signal of interest into the passband - so I find myself 
> overshooting or doing click-stop-click-stop to determine where the 
> signal now is relative to the passband.  If I turn averaging off, the 
> real-time response to tuning adjustments is better.
>
> I've experimented with different amounts of averaging time but cannot 
> find a suitable value.
>
> I've compared behavior with the older version of PowerSDR mentioned 
> above and the behavior is quite different.
>
> I'm wondering if something changed in how the display is refreshed to 
> accommodate the 2nd RX window (although this behavior is apparent  
> even when RX2 is not activated.
>
> I'm using WinXP SP3, single Mercury, Penelope, Metis,  Excalibur - 
> usual suspects.
>
> 73, Pete, N3EVL
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