I have all of that checked as in clearing the cq field after each call already. The only issue I see is when I just cut the software on and/or change bands sometimes that's when a lot of these false codes come up even before I transmit anything. Sometimes the software is just sitting there and these codes just appear. Again I just wanted to make sure I didn't have something set incorrectly or maybe my software was corrupted somehow.
You say these are rare but I see these almost daily and some days multiple false decodes in one day. Again that's why I am asking this question. Thanks for the input and replies. Mike KE4BKL On Fri, Apr 26, 2019, 12:02 PM Bill Somerville <g4...@classdesign.com> wrote: > Hi Mike, > > as others have suggested, AP decoding will raise the probability of false > decodes a little. One thing you can do to reduce the false decode > probability is to ensure the DX Call filed is cleared when you are not > working or attempting to work another station. You can check the option in > "Settings->Reporting" to clear it automatically after logging a QSO, for > abandoned QSOs you can use the F4 or ESC shortcut keys to clear the DX > Call, DX Grid and generated messages. The reason that clearing the DX Call > filed helps is that AP decoding is context sensitive and with a DX Call > field populated the decoder will hypothesis that messages that cannot be > decoded with FEC alone contain that DX Call. When the DX Call field is > cleared only CQ is hypothesised which will reduce he probability of false > decodes. > > False decodes are rare but always possible because of the stochastic > nature of the decoders and the requirement to decode the weakest signals > possible. You also have the option to disable AP decoding, and reducing the > decoding depth which will also reduce the false decode probability with > some lose of sensitivity. > > 73 > Bill > G4WJS. > > On 26/04/2019 16:46, Mike Oakley wrote: > > FT8 and all bands. It just pops up. > > On Fri, Apr 26, 2019 at 11:28 AM Bill Somerville <g4...@classdesign.com> > wrote: > >> On 26/04/2019 16:04, Mike Oakley wrote: >> > I continue to get false decodes everyday even when I am not >> > transmitting, for example today I cut my rig on and loaded the >> > software and then I got a false decode before anything even popped on >> > my screen. Can someone tell me why I am getting these and how do I >> > stop them? >> >> Mike, >> >> which mode are you monitoring and on which band? >> >> 73 >> Bill >> G4WJS. > > > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel >
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