View Single Post
  #15   Report Post  
Posted to sci.electronics.repair
Dave Plowman (News) Dave Plowman (News) is offline
external usenet poster
 
Posts: 43,017
Default Composite video via RF modulator, negative image?

In article ,
Michael A. Terrell wrote:
Composite video has negative sync.


Not as transmitted; tip of sync is peak output power.



That was done so that any 'snow' in a weak picture was white, instead
of black dots.


Quite the reverse, actually.

--
*A fool and his money can throw one hell of a party.

Dave Plowman London SW
To e-mail, change noise into sound.