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https://oldsite.omegaowners.com/forum/YaBB.pl Chat >> General Discussion Area >> Wanted- Widescreen test card image https://oldsite.omegaowners.com/forum/YaBB.pl?num=1258905472 Message started by JohnM on 22. Nov 2009 at 15:57

Title: Wanted- Widescreen test card image
Post by JohnM on 22. Nov 2009 at 15:57

A (very) long-shot, but you never know!

I'm in need of a widescreen format "test card" to setup my TV. It doesn't seem that such an image is displayed anymore (24hr TV etc).

I've several restrictions and it needs to come from a pattern generator plugged in on analogue or I can record it off freeview and reply via analogue (just the way the telly service menus seem to work).

- Having a bit of bother getting the linearity correct. Any pointers useful.

Title: Re: Wanted- Widescreen test card image
Post by Martin Imber on 22. Nov 2009 at 16:33

Digital Video Essentials is pretty good

Title: Re: Wanted- Widescreen test card image
Post by Chris_H on 22. Nov 2009 at 16:49

I would try to make my own on a PC. All you need is a regular grating that can be made with QBasic or a CAD package. You would need composite video out as well.

I presume you have a CRT TV? 'cos beware some of those have non-linear anamorphic scans that stretch the wings while maintaining square pixels in the centre. That's not true 16:9 mode though but that can catch you out.
In proper anamorphic mode a standard 4:3 testcard/grating should do. You won't get square boxes but the rectangles should be the same width/height right across/down.

I thought I had a 16:9 testcard as a gif somewhere but I can only find a 4:3 at present. It would require a PC anyway so the first suggestion is just as good if you have that.

It depends how resourceful you are I'm afraid.

Title: Re: Wanted- Widescreen test card image
Post by Welung666 on 22. Nov 2009 at 16:55

Title: Re: Wanted- Widescreen test card image
Post by Chris_H on 22. Nov 2009 at 17:06

Title: Re: Wanted- Widescreen test card image
Post by JohnM on 22. Nov 2009 at 19:42

:y

After a known transmission I can record to playback, or a pattern geny to borrow.

Anything similar tx wise to do a better setup than I've got.

Title: Re: Wanted- Widescreen test card image
Post by Martin Imber on 22. Nov 2009 at 20:40

JohnM wrote on 22. Nov 2009 at 19:42:

:y

After a known transmission I can record to playback, or a pattern geny to borrow.

Anything similar tx wise to do a better setup than I've got.

Wait for the BBC HD one or get DVE

Title: Re: Wanted- Widescreen test card image
Post by JohnM on 24. Nov 2009 at 21:41

DVE as in phonebox/kiosk >:( >:(

I saw the card mentioned in HD somewhere - I wonder if my measly setup can muster some bbc hd somehow (doubting ...)

Setup not too bad at the moment - might try fiddling again the the w/end - kinda reminds me of doing convergence.

May have to wait - father in hospital and the phone line is playing up big time (just when you need it most!).

Title: Re: Wanted- Widescreen test card image
Post by Martin Imber on 24. Nov 2009 at 21:50

JohnM wrote on 24. Nov 2009 at 21:41:

No as my first reply, excellent for setting up TVs

Title: Re: Wanted- Widescreen test card image
Post by JohnM on 24. Nov 2009 at 22:08

DVE dvd - can't use.

So far I can only setup on analogue or recorded tv and replay (not reply as original - where's the 'modify' gone?) via it's analogue o/p - seems to work okay.

When I've fathomed out how to show such an image on the telly I'll burn disc off my pc card collections.