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When fldigi runs for a while weirdness in the WF happens.


 

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Dave,

Here is a curiosity question:

I am running the current alpha code (4.2.06.15) now, but have seen this multiple line blurring effect going back a ways in previous versions. If I run fldigi on this Win 11 or my old Win 10? i7 boxen for a while, The display goes like:
running for 34 hours

and the copy become erratic. If I close fldigi and immediately restart the display goes back to normal and copy is nominal:
normal display

This appears to happen in all digital modes I commonly use (most often Thor, Olivia, FSQ - but also others). It also impacts all visible signals on the waterfall together. I notice it on the 7300 because it is my primary "digital" radio, but also have seen it on the 705 and 7610. At first I thought it was a propagation artifact, until I restarted the program and immediately the blurring was gone. Restarting the program always clears things up.

Any clues what this might be? Something with the fourier algorithm associated with WF and decode? I am sure my cat did not walk on the keyboard... :)

Note, those two birdies seem to be generated away from the QTH - they are periodic and don't bother me when there. They were convenient to show what happens to all signals.
--
Jack Spitznagel
KD4IZ
FM19oo
Pakton, MD