Q65 mode guide for DXers

[VK5PJ]

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Okay major update to how you should set up your Q65 in WSJT-X, please set your 'Ftol' value to a really LOW value like 20 Hz and you will find the ability to get decodes from multiple signals in one period is magically back to where it should be.

My original document had a recommendation to set Ftol to be a large number (1,000Hz) and that is I now understand the WRONG thing to do..

I have spent the last three days on this and bugged lots of people for ideas and have to give credit to Charlie Suckling G3WDG for engaging with me in an exchange of ideas where he made reference to a narrow Ftol value.

if you want a TEST file to decode, please feel free to download this file: Q65-30A test file

if successful you will see these three decodes:

224100  -7  0.3 1173 :  CQ OC W4TAA EL87  q0
224100 -11  0.2 1520 :  CQ AC4TO EM70      q0
224100 -17  0.2 2510 :  CQ KD5M EM60      q0

If you stretch you Ftol to cover more than one signal you will break the multi signal decodes... its sort of the opposite of what we did for setting up JT65..  you live and learn.

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Hi Peter,

Have you tried MSHV ?

Hey, yes tried MSHV today to see if I could do better with it but sadly it did not seem as sensitive BUT I need to spend more time tweaking to give it a fair test...  will report back what I can achieve.