Re: [wsjt-devel] Waterfall stops on Raspberry Pi

Wed, 17 Aug 2022 05:35:57 -0700

Actually I don't even have to transmit. If I click to disable "Monitor" and then click again, this button again lights up in green but the waterfall does not start and there is nothing decoded. But the seconds indication down to the right (0-15/15 in FT8 etc) still updates.
And again, this is not on Raspberry Pi, where I first saw the problem, but on my stationary machine, an amd64 running linux mint, with latest version of WSJT.X.

/Daniel


On 8/15/22 20:40, Daniel Uppström wrote:

I have both tried with an USB soundcard on RBPi and on my stationary machine. On the latter I have the same problem also with motherboard audio.
This autosuspend seems only to apply for USB.
When the waterfall (and any reception) has stopped in WSJT-X I can still see in the system Sound Preferences that audio is coming on the the input/mic. So I don't think it has to do with the sound device itself, but with WSJT-X.

73


On 8/15/22 14:34, Black Michael via wsjt-devel wrote:
What does your audio chain look like?

Have you tried disabling autosuspend?

set autosuspend=-1


Mike W9MDB




On Monday, August 15, 2022 at 07:05:11 AM CDT, Daniel Uppström via wsjt-devel <wsjt-devel@lists.sourceforge.net> wrote:


Hi all,
I still experience this problem, described below. Now tested on WSJT-X v2.5.4 under Linux Mint.
Waterfall stops updating after TX. Without any radio connected at all. So not an RFI issue.
Am I the only one that has seen this problem?

Thanks,
Daniel
SM6VFZ


On 9/25/21 20:43, Daniel Uppström wrote:
Thank you for several suggestions about RFI, but unfortunately it is not. I get the same result without any radio connected whatsoever.

Daniel
SM6VFZ



On 9/25/21 11:27 AM, Alan via wsjt-devel wrote:
Hi, while that may work it's in my view better to find the source of any RFI and get rid of it.  

You never know what else it might be doing!

Try the setup on a dummy load and if it's then OK look at the antenna/feeder arrangement.

Alan G0TLK, sent from my mobile device

On 24 September 2021 23:50:24 Ari Paananen via wsjt-devel <wsjt-devel@lists.sourceforge.net> wrote:

Hi Daniel,

Sounds like RF from your own transmissions is getting through to
the RasPi and disabling the USB-ports. Installing snap-on ferrites
to both ends of the USB-cables, Raspi power-wire and any other
possible connections might help.


On 25.9.2021 1:19, Bill Somerville via wsjt-devel wrote:
On 24/09/2021 23:09, Daniel Uppström via wsjt-devel wrote:
Hi,
On my Raspberry Pi 3 32 bit I get WSJT-X to stop the waterfall in 
FT-8 mode after I initiate a transmission. When the program starts 
the waterfall shows the FFT data as it should so I don't think this 
is a performance issue. But when transmitting, it just stops and 
doesn't start again until I restart the program.
I have asked this question earlier this year but didn't get a reply. 
Now I updated to WSJT-X 2.4.0 but the exact same problem is still 
there.

Any thoughts?

Daniel / SM6VFZ

Hi Daniel,

that may be an RFI issue, is your audio link to the rig using a USB 
interface?

73
Bill
G4WJS.



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