[hpsdr] Difference in levels in cuSDR?

[Hermann]

Hi John,

yes, your observation is correct. I have a version where you can adjust
Panadapter dBm readings (Panadapter and wideband spectrum). Do not take the
values shown for granted yet!
What I will do for short is to make the dBm readings adjustable 'by hand'
(the so-called 'poor-man's-adaptation'..).

Hope I can publish this soon.

73, Hermann
DL3HVH


On Mon, Nov 12, 2012 at 11:01 AM, John Marvin <jm-hpsdr at themarvins.org>wrote:

>  Hermann,
>
> I've noticed that the peak for various spurs have a 20 db difference in
> level between the wideband window and the receiver window (The level in the
> receiver window is 20 db higher than the level in the wideband window). Is
> that a bug, or am I missing something? In particular if you have a
> terminator on the receiver input I believe most people will see a spur at
> 50 Mhz that is visible in the wideband window. I'm using that for comparing
> the levels.
>
> Note that since the spur is at a fairly consistent level this 20 db
> difference isn't really affected by the averaging filter setting, or the
> panadapter averaging, etc.
>
> Thanks,
>
> John
> AC0ZG
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20121112/3b7b3624/attachment-0004.htm>