Tonight I had 3 WSJT-X sessions open for 20, 30 and 40 meters. After monitoring for about 2 hours I noticed that decoding was stopping on 30 so I started a video to capture what was going on.
In the video (easier to see with full screen) you will notice the last decoded FT8 signal on 30 meters was at . 040815, on 40 meters was 042545 and on 20 meters signal are still decoding for another minute or two.
Notice that each pan is showing continuing signals and the DB levels on each WSJT-X session is showing activity yet the decoding has stopped completely on 30 and 40 and eventually stops on 20 as well. Each band stopped decoding a few minutes apart from the other bands.
Notice also the DT values all reasonable as I use Meinberg to ensure accurate timing
I also display DDUtil to show the voltage at 13.8 and the temp at 30.4c and the control panel to show the current settings.
So the video shows that whatever is causing the decode to stop is causing it to stop one band at a time until they are all stopped. . This happens with JTDX as well so I know it's not a WSJT-X issue.
After about 15 minutes 20 meters started decoding again but 30 and 40 are still stopped and both bands have lots of activity
If anyone has any suggestions I would like to hear them
I'm adding this info to the current ticket
I hope you are having a good 4th. I just watched your video and have a question but first want to say I have only been running WSJT-X for a few weeks on FT8 and making tons of good contact's with my 6500.
I noticed that your bar graph on the left of each slice is way lower than mine. Mine runs at a minimum of 60db all the time and goes as high as 80db but never below 60db. I saw you DAX level is way lower than mine so maybe you could turn it uo so you get in the 60DB plus range and see what happens.
Give it a try and see. Even if you have tried it before. I would close all the slices but 20 meters for now. They are all low but when I attack a problem I usually try to throw things in the mix 1 at a time.
Let me know if you see anything different. Like I said I am new to FT8 but mine is working and that's the main difference I see.
I also zoomed in on my panadapter like your is and the waterfall looks just like yours. I never looked at it zoomed it that far. I am looking forward to see what the levels do. Your 40 meter level is so low at times I am surprised you are decoding anything at all.
Let us know.
For this example I just happened to have it lower but it was fine for 2 hours then one by one each band failed within a few minutes. .
Can you show a video with the WSJT-X spectrum windows also?
Unless your 6700 is drifting in frequency the other thing that will cause no decodes when you have good signal is the time sync of your PC. I have seen this a few times helping guys get setup. When I set them up with a NTP client then bingo, great decodes.
For me personally I something just lose DAX. I mean it seems to remain running but the data stream either quits completely or something goes wrong with it. When this happens nothing works. WSJT will not decode. CW Skimmers will not work.
Just for grinds, the next time you have a stop in decoding, try quitting the DAX control panel software and restarting it. See if decodes come back.
I am hopeful that DAX is being worked on some in future versions.
I've replaced everything, even the Ethernet cable. The only thing I haven't replaced is the radio.
1) can you get it to stop decoding with just one instance of WSJT-X running rather then 3?
2) how much space (disk and or cache area) and memory are available after all this is running and when the issue occurs?
3) do you have a power or sleep setting on for any disk drives?
4) What hard drive is WSJT-X installed on?
5) do you see any errors in the windows logs?
My thought is this, typical behavior from a PC when a resource is lacking.. it looks to me like WSJT-X queues all incoming decodes, that "space" fills (3 times as fast with 3 instances running) thus causing a decode or decodes to stop.
Have you ever cleared the WSJT-X log? How much space is in the log directory.. typically in c:\users\"username"\appdata\local\WSJT-X directory
Also if you zoom in you can see some evidence of a shifting of the signals.
Not a computer problem. Bought brand new Windows 10 and it does the same thing as on my Windows 8.1
Not an antenna problem. Bought a brand new antenna and it does same thing
Not a WSJT-X problem. When decoding stops it stops for JTDX as well. Also been using the same configuration for 2 years with no problems until the beginning of this year. Also reinstalled WSJT-X at least 5 times.
Not a coax problem. Replaced the entire run
Not a tuner problem. Replaced my LDG 600 Pro II with a new one
Restarting DAX, SSDR and radio itself does not help
Shutting down all other apps and services doesn't help
Shutting down just about everything else in the house doesn't help
Again it's been working fine for 2 years and now this.
WSJT-X should run at maximum 30dB with no antenna attached.
And remember Windows essentially supports EDV, not multiple parallel processes.
Use TaskManager or - better - ProcessHacker https://processhacker.sourceforge.io/
to look at your CPU usage and what Windows does with interrupts etc.
I haven't read all the other messages but you need to get off the hardware thing and work with wsjt-x. Trust me that is your problem.
I am going to make it real easy. Set your radio up like you are going to talk on 20 meters ssb. Then leave SmartSDR alone.
Start up WSJT-x. Adjust DAX to drive teh program as we talked last night and it should work.
Your are trying to make changes on the radio you don't need to be making. If you can talk on the radio then the radio is ok. Period.
Let me know what happens.
This is why I wanted to finish this last night. Now you have a bunch of people telling you what to do and you are going to get way off track. You need to still to one person and go thru until the end. You and me weren't done yet so I hope you haven't changed. Again, if you know how to set the radio up to talk on 20 meters SSB the radio will be set up properly. Leave it alone.
Go to WSJT and make sure the audio is set up to 60DB. Adjust DAX as needed.
You should now be working. It's that easy. Or should be. Please try that.
When I first noticed the problem it was happening only once in a while. Then it started happening more often. Now it happens many times a day.
This gradual increase in failure rate would seem to indicate a failing physical component that's degrading over time as opposed to a software glitch as the software hasn't been changed (except reinstalled) and no new applications have been added to the computer to account for the increase.
Everything points to a failure within the radio which is what I've been saying all along
I am sure we will all be curious about this when solved.
Just a thought. Good luck in figuring this out.
Notice on the video that it stops at 212300 then after 2 minutes starts up again for one more time period then stops completely. Also note near the end of the video I show with the cross hair pointer on the WSJT-X waterfall signals that appear just a little bit zigzag. You have to look real close.
This shows that it's not caused by having more than 1 active WSJT-X session open at the same time
I have read through this post and several other post you have made regarding the issues your having. So I don't want to beat a dead horse and suggest something that has been brought up time after time, I think your correct as it being a hardware issue. esp with the info you provided regarding the resent ship and back from Flex. However a couple things I have not seen listed as a possibility are : and I know you've tried this on two different computers and operating systems, so here you go : If you could look at the below, again I think your probably correct as a hardware issue but if it were me I would check the following below as well.
What antivirus is running on the systems is it the same software?
What is the possibilities that you maybe subject to a BOT-NECK attack?
I can personally tell you , as being in the I?T field for some 27 years that McAfee and Norton, esp with the added web surf apps are total crap when it comes to eating system resources and fail on stopping Bot Neck attacks and other newer malware. Is it possible that your A/V is starting a scan when the issues starts with no decodes?
can you scan your system with another A?V scanner to check for something that your present A?V maybe missing on both systems.
any file transferred between the two systems could carry over an infection, email, a website visited, a picture etc. anything! (cant tell you how many customers I've clean infections from told them to toss USB drives and weeks or moths later there back because they plugged a USB infected drive into there system again)
First please run RKILL-
RKill is a program that was developed at BleepingComputer.com that attempts to terminate known malware processes so that your normal security software can then run and clean your computer of infections. When RKill runs it will kill malware processes and then removes incorrect executable associations and fixes policies that stop us from using certain tools. When finished it will display a log file that shows the processes that were terminated while the program was running.
As RKill only terminates a program's running process, and does not delete any files, after running it you should not reboot your computer as any malware processes that are configured to start automatically will just be started again. Instead, after running RKill you should immediately scan your computer using some sort of anti-malware or anti-virus program so that the infections can be properly removed.
Next if you could scan the system with something like Emsisofts emergency kit:
Then follow up with Junkware removal tool: https://www.bleepingcomputer.com/download/junkware-removal-tool/
And Okay before you guys tell me Junk-ware removal tool is old and outdated, Yes it is, but is also works better at finding at least older things than does the updated replacement called Adware cleaner which is malware bytes and recently that program is very lacking!
Ive included the links to the suggested applications I use here daily, please read the directions for them, Esp. RKILL it is important you do not reboot after it finishes,
Please note any running apps open will be terminated when you run RKILL.
Please report back, or if you'd like feel free to email me directly im good on QRZ or look for links on my personal page: http://n8sdr.com/
I note above you mentioned "plenty of RAM" but not too much about the rest of the machine. I see you started having the problem on your old "windows 8" machine. What changed there? Did you add a new monitor? Perhaps increase the resolution to allow more pan adapters to be visible? Both WSJT-x and SSDR make pretty extensive use of video processing capabilities. That ---could--- be a bottleneck for you.
Have you tried reducing the waterfall rate (lower FPS in SSDR, higher N Avg in WSJT-X)? Turning off AP and deep decoding in WSJT-X? Making the active video windows smaller? Closing any unnecessary DAX channels (especially IQ)?
It would be interesting to know what your video card and monitor configuration is. What is the processor in your PC, and how much is "plenty" or RAM.
Have you looked at the system monitoring tools in Windows (Task Manager)? Could you post a screen shot of the results on launch of your applications, and then after they stop?
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