[Skimmertalk] WSJT-X/FT8 skimming: high PC CPU utilization limiting count of spots

[Andy KU7T]

Back to the original issue, the throttling of spots on high CPU utilization with multiple WSJT-X instances on a Windows PC.

I converted my RP16 to do all the FT8 work (SM7IUN’s software) and it is amazing. All bands skimming FT8, the RP is at 50 C and my spot count is about double. That RP is quite a little work horse.

On the negative side, I had to get my CW spots with different means.

Wouldn’t it be nice to run on RP and skim for FT8, CW, RTTY all in one box?  My dream…

73
Andy
KU7T



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________________________________
From: Skimmertalk <skimmertalk-bounces at contesting.com> on behalf of Bob Wilson, N6TV <n6tv at arrl.net>
Sent: Sunday, July 28, 2019 10:31:09 PM
To: Jorge Diez - CX6VM <cx6vm.jorge at gmail.com>; SkimmerTalk Reflector <skimmertalk at contesting.com>
Subject: Re: [Skimmertalk] WSJT-X/FT8 skimming: high PC CPU utilization limiting count of spots

I see far too many decoders, indicating that there are multiple carriers, perhaps from unshielded Ethernet cables or nearby power supplies or computers or Routers or perhaps front end overload.  The problem is not the CPU, it is the local digital noise or intermod.

Please press the Band Scope button in RTTYSkimmer and cycle through the bands using the button in the upper left corner of the band scope display.  Every yellow dot is a decoder on a carrier, probably far more than you should have, especially on 40 and 20m.  Maybe they are all on the FT8 signals, so these frequencies should be excluded by editing RTTYSkimServ.ini.

You may also use HDSDR to see all the steady carriers which will create a decoder in both CW Skimmer Server and RTTY Skimmer Server.

Yes you can have 8 bands of CW and 3 or 4 bands of RTTY by eliminating RTTYSegments (but not center frequencies) on some bands, but that is not the problem here.

73,
Bob, N6TV

On Sun, Jul 28, 2019 at 3:19 PM Jorge Diez - CX6VM <cx6vm.jorge at gmail.com<mailto:cx6vm.jorge at gmail.com>> wrote:
I did some test this afternoon with my  Core i7 -4790 CPU @ 3.60 GHz with 8GB of RAM

CW and RTTY on 160, 80, 40, 20, 17, 15, 12 and 10



CW and RTTY on 160, 80, 20, 17, 15, 12 and 10



CW and RTTY on 6 bandas: 160, 20, 17, 15, 12 y 10


Is there a way to have 8 bands on CW and 3 or 4 bands on RTTY?

thanks!








El dom., 28 jul. 2019 a las 14:18, Wes Cosand (<wes.cosand at gmail.com<mailto:wes.cosand at gmail.com>>) escribió:
I have found that limiting the RTTY skimming bandwidth on 40 meters can make a big difference in CPU utilization

Wes WZ7I



--
73,
Jorge
CX6VM/CW5W
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