Thanks
I tried with the new filters and there was no difference.
I also changed the Video Renderer to Generic or Overlay Video Rend, but it made little difference. I got a frozen picture which hung on Overlay Video.
The dish was installed by a novice, and as 4.8E appears to be in a few locations, (4.8/4.9/5.0), am not sure its aligned properly, but its hard to adjust.
I am installing a fixed mount C band dish shortly, which will be easier to play with. With be able to test whether the problem is with DVB etc then.
Best regards