19-05-2017, 11:31 AM
Yes, I was quite surprised by it but of course a 240 line Baird picture has more lines than a 405 with poor interlace and what represents 3MHz bandwidth on a 405 line set is only 1.8MHz with 240 line.
My set-up is all a bit messy just now but I'll sort out the syncs and there's a series capacitor in the the video path with too small a value at present giving rise to the dark shading at the top of the picture.
The next problem is how to change the aspect ratio of video source material.
Trevor, did you use the PC and graphics card technique too? If so what card and modeline did you use?
Peter
My set-up is all a bit messy just now but I'll sort out the syncs and there's a series capacitor in the the video path with too small a value at present giving rise to the dark shading at the top of the picture.
The next problem is how to change the aspect ratio of video source material.
Trevor, did you use the PC and graphics card technique too? If so what card and modeline did you use?
Peter
