[opendtv] Re: PAL

  • From: ALAN ROBERTS <roberts.mugswell@xxxxxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Mon, 18 Dec 2006 14:08:23 +0000 (GMT)

6MHz sound was spec'd in ordwer to get 5.5MHz luma,
and more symmetrical chroma.

--- peter wilson <peter.wilson@xxxxxxxxxx> wrote:

> I once had in my charge a Vacuum tube TV which could
> do PAL and NTSC 625 +
> 405 monochrome. This was apparently built for an
> early 60's BBC trial where
> 625 NTSC was an option. This trial is apparently the
> reason that the UK has
> 6Mhz sound carrier spacing whereas the rest of
> Europe has 5.5. Cant now
> remember the technical reason why, some thing to do
> with harmonics I
> believe.
> 
> BR Peter
> 
> -----Original Message-----
> From: opendtv-bounce@xxxxxxxxxxxxx
> [mailto:opendtv-bounce@xxxxxxxxxxxxx] On
> Behalf Of Mark Schubin
> Sent: 18 December 2006 12:38
> To: opendtv@xxxxxxxxxxxxx
> Subject: [opendtv] Re: PAL
> 
> negrjp wrote:
> > In Europe, NATO military bases uses NTSC 625 line
> system.
> >   
> Are you sure about that?  Could you point to any
> equipment they might 
> use for playback?
> 
> There WAS, briefly, a 625-line NTSC system broadcast
> in Barbados.  It 
> used a sync generator made by special order for
> them.  They later 
> changed to NTSC-M.
> 
> TTFN,
> Mark
> 
>  
>  
>
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