I lost transmit DAX again

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  • Updated 3 years ago
I was working wsjt, and DAX was obviously working in both receive and transmit.
Got a request to help a neighbor and left the shack with the rig on, and just monitoring.
Came back about an hour later to find the computer had shut down.
(Normally it runs 24/7)
Restarted everything to find that my previous problem of no DAX Transmit had returned.
Nothing I could do would get DAX to transmit (receive as always was fine).
I hate restore points but as a last resort, I reverted to a restore point I had made the very same morning.
Everything restored as normal, all my programs, wsjt worked perfectly IN RECEIVE mode but still no DAX transmit.
All the Blue Dax buttons are enabled
Correct Dax channels are selected
Dax Control Panel is on the screen and correctly deflecting with in accordance with signals in the passband.
But just like the previous event, there is no audio output when attempting to transmit.
Same thing with rtty, psk, rig goes into xmit mode, but it doesn't seem that DAX is sending the audio needed for transmission

CW works properly, but that doesn't employ DAX (as far as I know)

So has anyone have any idea, why receive DAX is working but Transmit DAX does not?
And why does it just stop on it's own?
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Bill-W9OL

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Posted 4 years ago

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Ernest - W4EG

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Bill,

My experience has been that the reason for no transmit is due to no CAT connection. I use HRD v6.2 and that is my sure indication of the problem; since it would not start, although you receive is normal.

Just make sure that you see the IP address slides above the taskbar or click on DAX that will also wake up the DAX and CAT connection. Or delete DAX and restart it from Windows All Programs.

 

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Bob - G3WKW

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I have spent a couple of hours chasing the same problem. The TX audio is visible as "green bar" in both ends in the PC sound control panel , but not a sign of it in the DAX control panel metering. The CAT is fine the Flex is switching to Tx but no modulation is reaching it. Tried different digi apps. It all worked fine 2 days ago. Has Windows updates done something I wonder?
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KY6LA - Howard, Elmer

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Usually it's a windows problem when u restart the computer (like when Microsoft Updates) windows loses the enumeration of the audio chains

Check that WSJT is seeing the right DAX TX audio not some random default.

Check that the TX box is check in DAX control Panel, DAX is lit in the side panel, TX is enabled for the slice

Finally if none of those work, then exit DAX and restart DAX.

One of the above will fix it
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Bill-W9OL

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Well those are the same suggestions you gave me last time.

Unfortunately they didn't work then but I tried them again and the same result.

All the Dax choices in are Blue, and DIGU-3.0K is selected.

I've gone to Control Panel-Sound and all DAX Audio TX # indicate 'Ready'

I even tried making DAX Audio TX1  my 'Default' device

I've deleted the DAX Control panel from the screen, rebooted, and while it started up upon restart, still did not transmit

But thanks for the offers of help...



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KY6LA - Howard, Elmer

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After the restart.

After everything is set up correctly

I sometimes find you need to

EXIT DAX. Do that with task manager to make sure it stopped. DO NOT reboot

Restart DAX.
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Bill-W9OL

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I just noitced one little thing.
Just for grins I moved the windows speaker so that the sound was at max.
When the rig went to xmit mode, the icon went green to the top of the applet.
but still no sound OUT of the speakers nor and signal transmitted.
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Ernest - W4EG

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Bob,

Make sure that the "DIGI" mode  is selected, if it is in any other mode you will not be able to transmit. And of course the obvious "DAX" should be on.

Again, if "DAX" is not handshaking with "CAT" it will  NOT transmit.

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Ernest - W4EG

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Also, on WJST "Configuration" -->Setup and test the CAT Control and your frequency of operation should be indicated plus test the PTT and you should hear a relay latching. If these things don't function ... your Setup needs to be recheck

(Edited)
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Bob - G3WKW

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CAT was fine the audio disappeared after leaving the PC. By the way I find WSJT better when using Split Tx with two slices A for receive and B for transmit. That way you can work the full 4kHz with JT9 and JT65. A bit fiddly to set up but that is what the profiles are for!
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Bill-W9OL

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I've done all the suggestions, more than once.



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Bill-W9OL

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thanks Ernest but mine is identical to yours....except for the Rig Choice, I use DX Lab Suite Commander.

And both Tests are positive

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Bill-W9OL

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Let me ask one more question.
Is there anyway to reinstall just DAX.
I really hate to do a complete reinstall of SSDR.
As far as I can see, Dax is not a separate piece that can be deleted and reinstalled.
I'm primarily CW and Digital, don't do much SSB.
right now all I can do is CW :-(((
(Edited)
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KY6LA - Howard, Elmer

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No

It is not separate
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KY6LA - Howard, Elmer

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Post screen shots
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Bob - G3WKW

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OK after 2 hours of fiddling on my Win8 laptop with no success I fired up the Win7 desktop and had the same issue. So I concluded I had not messed up my software but the issue must lurk inside the radio. I had already shut that down and taken the power off this morning so I did a press and hold shutdown and power off and after restarting normality has returned.
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Bill-W9OL

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Hmmm Bob, I'd never tried that.
So I went even a step farther. Shut down all software normally,
Shut down the rig by the button, when that finished I pulled the power and waited 20 minutes.
Repowered and started radio normally.
I was really holding out hope
but alas...same issue, can receive signals, see the 'red' in Dax Slice A RX Gain but no joy in the TX Gain.
Quiet as a churchmouse.
and obviously the wattmeter showed no output either.
Oh I did want to say, as I had the cabinet open, I could see the 6K button go red, so it did go into xmit mode, just no audio to send.

I've tried other slices, with the same result. Or more correctly more of the same, nothing!
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jim WB5AAA

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have you tried using   DAX stream 2 or 3 ?
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Bill-W9OL

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yes sirs one of the first things I thought of
(Edited)
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Bob - G3WKW

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Not sure if it makes a difference but rather than a short press to get a flashing green for an orderly shutdown I did a press and hold. I have a feeling that this forces a shutdown without saving some parameters and may make for a slower reboot as it starts . Not sure what makes me think that, did I read it or dream it, but it might flush something out. The hardware manual doesn't explain, just prefers the soft shutdown.
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Bob - G3WKW

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Bill-W9OL

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Well I spend the day TRYING to get transmit DAX working to no avail.
It's going into xmit mode but there is no signal out, as there is no audio to drive it.
I've shut down DAX from the TASK MANAGER
It was installed into the default c:Program Files;FlexRadio System/SmartSDR v1.3.0/DAX
and Sure enough the icon and DAX is there Date of 2014-08-18 3:30PM Application 274 KB

Does that agree with your installs?

If someone would be willing to zip it, and email your copy of DAX to me at bill@w9ol.com
It's really the only thing I can think of left.
none of the TX side of any of the choices is working.
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KY6LA - Howard, Elmer

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Did u do a factory hardware reset?
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Bill-W9OL

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Not sure what you mean
Did I shut down the rig completely?
So many times I'm wearing the color off the button.
After one shut down, I pulled the power and left it off for a few hours.
(Edited)
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KY6LA - Howard, Elmer

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When holding the OK button and then powering up the Flex 6X00 there is an option to reset the radio to Factory Defaults after holding the power switch for 5 seconds.
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Bill-W9OL

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Checking my Sound items in the control panel
I find I still have
4 of each type of DAX
4 DAX Audio TX
4 DAX Reserved IQ RX
4 DAX Reserved Audio RX

Way back when DAX first came out, Those of us who used WinWarbler had to delete four of each DAX as WinWarbler could only handle 10 sound devices of each type and we needed VAC back then
I still have 4 VAC which I saved to use on my Flex5K


Need a guru to tell if that is having some deletrious effect on my system.
But the system worked well till v1.3.0 came along.
That's when I started loosing transmit.

Can any of you gurus make sense out of this?
Or is this just not connected?
(Edited)
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Mike Hoing

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Every time I experience a similar issue it was when I left the computer on just monitoring digital modes. I shut down the Dax control panel and the CAT control panel then restart them both. This solved the problem almost every time .

The rest of the time it was a setting that I over looked such as activating the Dax channel, activating the Dax button, wrong cat channel for PTT or even more common not setting an active TX slice

Most every time was something I did I and freaked out and couldn't see the solution. Take a deep breath relax and run through the list. I bet it's there somewhere and not equipment

Mike
N9DFD
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Bill-W9OL

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Thanks for the suggestions Mike
But, I've gone over every setting dozens of time, resorted to 'Restore Points'.
I can receive and decode digital signals but when the rig goes into transmit. I can watch the dax control panel and see that no signal is being transmitted.
There are two places on the screen that Dax must be properly filled
One on the Slice, Another at the bottom of the left side of the screen.
You must have all TX buttons set to Red (transmit)
Dax Control Panel number must be 'Blue' indicating that it's the dax channel selected.
If I go to the WSJT setup page, I can do the 'Test Cat' and that works
I can test PTT, and than works.
Both Audio In and OUt have the proper Dax Channel selected.
As I make it a practice to take screen shots of all my settings of working apps.
I've been able to compare and not find any slip ups.

Some code malfunction is occurring, Neither I or anyone has come up with the clue.
I had the same issue a few weeks ago.
And then all by itself one morning it started working...
It didn't work the previous night.
I went to bed with the system running.
In the morning it started...
As I had turned the transmit sound volume up high, it made me scrambble to turn it down I was so surprised.
When it's working, I will see the in the Dax Control Panel, a red signal which is modulated in agreement to the tones being sent.
And it's not wsjt as I have the same issue with the PSK, RTTY and other digital programs.
All go into transmit mode but no DAX audio is conveyed.

Normally I find that re-installs are unsuccessful but that's the last resort.
But I'm still open to all suggestions...
Anybody have one, please forward them. bill@w9ol.com
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Mike

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Perhaps this will help. Its not a fix, but may save some time getting things working again. This weekend in the RTTY RU, all was working fine. I shut things down, and, on my 6300, when I went to shut it down, the green light did not flash and radio would not shut down unless I forced a shutdown by holding the button in. On restart the next day, there was NO RX Audio and NO TX audio to and from my computer (no audio on DAX control panel either). Checked everything I could. Restarted SSDR, N1MM+ and MMTTY. All came up fine, set up correctly, but still no audio. After about an hour, I decided to shut down the radio. Flashing light.  Turned it back on, and everything was working. I now recall this happening before, as well as profiles not working correctly after a forced shutdown, but shutting down and restarting radio got things back to normal. Can someone offer an explanation as to the difference between regular shutdown and forced shutdown?