Locked Re: No decode Waterfall compressed

Jacques Pecourt

Hi Bill,
I certainly respect your comment. You are so far ahead on me about how the program works. It is still something mysterious to me that , in presence of very wide signals on the WF, the decode suddenly decreases or even get to zero. I observed that the decoding or more exactly the number of decodes is significantly affected by the shape of what appear on the screen.
At any rate, my occasional wide washy display is gone and my number of decodes has significantly increase!

73 Jacques W2/F2YS

On Fri, 27 Mar 2020 at 21:26, Bill Somerville <g4wjs@...> wrote:
On 28/03/2020 01:23, Jacques Pecourt wrote:

Hi Lance

Looking at the screenshot attached to the last post of Steve KS3K, I had this problem for weeks and I finally found a solution playing with the bottom left blue arrow (Spectrum gain). I originally had the same position as the one I see in this picture “5 ¾” and I gradually moved it down to 0. Surprisingly all stations became within the 100 Hz wide at the exception of some monstrous signals popping up occasionally.  As the result my number of decodes went from 10 or less (even 0) in presence of wide messy signals to 2 or 3 times more. Today, with the 30m quite active, I have seen the list jumping up the screen (30 or more at time). As mentioned before, bodacious signals will deteriorate the display, but this can be adjusted when needed by turning the receiver RF gain. down a bit. Do not try to move the arrow with your mousse, just click on the arrow then use the <  > keys to adjust, a few clicks at a time.

It is unfortunate that there are no explanations on how to adjust these 4 blue arrows but obviously they just don’t have to remain where they appear on the initial installation of the program. I hope this help your situation.


73’s   Jacques W2/F2YS

Hi Jacques,

the waterfall and 2D spectrum gain and zero offset controls on the WSJT-X Wide Graph have no effect on decoding.


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