I didn´t get the point yet.
The manual says to try change the THR from Auto to 5.
The speed is right but even strong sigs it´s hard to find the point and decode it.
Also the manual says to move the WIDTH from.50 to 100-200hz but....
Any trick ???
The most important thing is to make sure that the CWT is lineing up in the EXACT center. In other words, make sure the little black bar that indicates when your CW is in the Center of the IF is lined up in the CENTER of the graph on the display. The next more important thing is to make sure that if you're NOT going to use the Auto mode that you try the LOWEST setting first. Think of it as noise gate, if you set the gate too high than NO signal will pass in and be decoded. Once you have the signal set right, and the Threshold is set okay, than you should try to keep your filter set somewhere around 100 or 150Hz.
Also, try reducing your RF gain so that you don't have as much noise along with the signal. You can try runing your at NR 1-4. That seems to work very well for this too.. The less the amount of noise you have on top of the signal the better the chances are it will decode. If YOU can't understand the code, don't expect the K3 to be able to.
You may be trying to decode someone who is sending with their right foot
(sending bad CW ). When using decoders the characters must be formed correctly.
That is, the Dahs, Dits and spacing must be in the correct proportion or very
close to it for the decoder to work.
There is no replacement for the brain when decoding CW.