BATC Forum

Hi all,
I have updated TCAnim to have a personal slide show by replacing imz-10.jpg....etc...... by personnel pictures (format 640x489), and I have change duration time (10 > 15), change "CQ" by "" in the a.sh file.
My slide show run very well, but when I transmit on QO100 at SR250 , my signal drop down sometime . I have problem only with TCAnim, no problem with my camera.
What is the problem?
Best 73
Franck F1SSF

Franck, what is your transmission system (Portsdown?) and which model of RPi?

There can be some jumps in the video with Portsdown, because tcanim and Portsdown software both access the RPi screen buffer, but I don't think that it stops the transmission.

I don't have a Portsdown, so G8GKQ and F5OEO will know better.

Brian

Hi Brian,
Yes I have porstdown, I try to contact them.
Best 73
Franck F1SSF

Hi Franck

I know that tcanim with the Lime is not perfect. So that I can check the problem, please answer these questions:

What FEC are you using?

What modulation? DVBS, S2QPSK, 8PSK?

And what software version - 201903250?

Does the carrier power drop, or just the modulation?

Dave, G8GKQ

Hi Dave,

.What FEC are you using?

1/2

.What modulation? DVBS, S2QPSK, 8PSK?

S2QPSK

.And what software version - 201903250?

Yes last version

.Does the carrier power drop, or just the modulation

No only modulation drop down, and I can see carrier
73 Franck F1SSF

Hi Franck

Thanks. That is exactly the problem that I have here, and have been unable to improve. I was worried that it was a new bug.

I am sorry, but that is the best that Portsdown can do with LimeSDR at the moment (it is OK with the filter-modulator board). I think that Evariste is working on some improvements and I will incorporate them as soon as they are ready and I have the time.

73

Dave, G8GKQ

No problem Dave, sometime, it is difficult to integrate alls problems.
See video problem on my QO100 TX.
https://vimeo.com/328037027
73FRanck