I have seen the “desensitized” as well, BUT, only for my older Win7 + 2GHz 
1.5GB Pentium Mobile laptop (ca 2005). It is only when many signals are present 
AND the program was running for +4hr.  Sometimes the decode takes 4-5 seconds. 

I only run WSJT-X, Dimension4, Chrome (3 tabs), no antivirus. When the program 
restarts, it is fast again. I’m thinking it is a Win7 memory or processor 
allocation issue. 

No problem for the Win10 i7 8GB laptop. 

73 de W8NET Gene
3905 Century Club Master #47
Portage County Amateur Radio Service (PCARS) since 2008
ARRL A-1 Op

> On Apr 26, 2018, at 11:57 PM, harold deitz via wsjt-devel 
> <wsjt-devel@lists.sourceforge.net> wrote:
> 
> Ray,
> 
> I have seen the same thing as N0AN mentioned.  Letting Win10 update solves 
> the problem (if you can call it a problem).  I call it housekeeping.
> 
> Hal - W5GHZ
> 
> 
> 
> Sent from Yahoo Mail. Get the app
> 
> 
> On ‎Thursday‎, ‎April‎ ‎26‎, ‎2018‎ ‎11‎:‎28‎:‎36‎ ‎PM‎ ‎GMT, Hasan al-Basri 
> <hbasri.schie...@gmail.com> wrote:
> 
> 
> I have observed this issue when win10 is waiting to update, but I haven't 
> been notified that an update is pending. 
> 
> I discovered this when I noticed My 2nd wsjt-x machine was only decoding 
> about one half the stations that my other machine was. When I told the 2nd ma 
> Hine to restart, it immediately notified me that it was updating during the 
> reboot and not to turn the machine off.
> 
> I have seen this scenario present itself 3 times now, over a three month 
> period. 
> 
> In each case the 2nd computer began decoding exactly as the first.
> 
> Typically I have wsjt-x running on both computers 24/7
> 
> 73, N0AN 
> 
> 
> Hasan
> 
> On Wed, Apr 25, 2018, 5:53 PM Ray Jacobs <rjacobs...@verizon.net> wrote:
> I left WSJT running on my computer for several hours, (not on purpose) but 
> found out the program lost sensitivy during that time. 
> My question is after a couple hours should you shut down the program and 
> reboot your Computer?
> Ray KA3PCX
> 
> 
> Sent from AOL Mobile Mail
> 
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