FT8 has been working fine then on occasion the RX screen would be blank and then start to populate.  Now it is blank all the time.  The waterfall in WSJTX shows heavy activity and I can hear it in the radio.  The decode button flashes but still nothing in the RX window.  I have downloaded the latest version, followed the YouTube videos for setup with the IC-7300 again and even checked all the security/firewall settings to ensure WSJTX is authorized through.

I am lost.  Any help out there?

Thank you,
Mike
KI5EGH

Make sure you see the signals on waterfall line up with the green lines.  If not the signals are not in the middle between green line your timing is off. Check your clock.

FT8 has been working fine then on occasion the RX screen would be blank and then start to populate.  Now it is blank all the time.  The waterfall in WSJTX shows heavy activity and I can hear it in the radio.  The decode button flashes but still nothing in the RX window.  I have downloaded the latest version, followed the YouTube videos for setup with the IC-7300 again and even checked all the security/firewall settings to ensure WSJTX is authorized through.

I am lost.  Any help out there?

You may have "Start new period decodes at top" selected in "File" => "Settings" "General" -tab.

Try disabling that.

73's de Kari, oh2gqc

Thank you all.  Have checked the items you recommended ( I use dimension 4 for clock sync) and am still having the issue.

73, KI5EGH Mike

If your signal is in the middle between the green lines then issue may be somewhere else like other have suggested.

Check your pc clock

Mike - interesting that you posted this. Last night I turned on my rig to let my 12 year old son hear the difference between CW and digital/FT8 signals - he is studying for his ticket. I’ve been using a different radio (K1SWL’s Phaser) on a different computer for a month or so - this was the first time in many weeks that I had fired up my “big rig”.

I had the same issue as you - lots of stuff in the waterfall but instead of lots of decodes, I only got one or two every decode session. Computer clock was spot on. I made sure nothing else was running on the computer. No change. Upgraded to the current version of WSJT-X, as I was a couple behind. No change. So then I did the low tech approach - I re-booted my computer. Bingo - all working fine now. Who knows what got screwed up in the depths of those micro chips, but a re-boot cured it.

Give that a shot - couldn’t hurt....

Jim Bennett / W6JHB
Folsom, CA

On 25.10.2020 14.29, KI5EGH via groups.io wrote:

Thank you all.  Have checked the items you recommended ( I use dimension 4 for clock sync) and am still having the issue.
73, KI5EGH Mike

Mike, make sure your 7300 is in USB-D -mode and that
you have Data/Pkt selected in WSJT-X radio settings.

73's de Kari, oh2gqc

On Oct 25, 2020, at 06:29, KI5EGH via groups.io <KI5EGH@...> wrote:

Thank you all. Have checked the items you recommended ( I use dimension 4 for clock sync) and am still having the issue.

I haven’t used it in years, but have been told that D4 does NOT sync your clock. It merely tells you how far off it is. Meinberg or BkTimeSync are good. Not saying this has a thing to do with the reported problem, but since you brought up the clock ……….

73, Gary - AG0N

under settings, general, behavior you don't have single decode checked do you?