tony sayer wrote:

In article , William
Sommerwerck scribeth thus
"Dave Plowman (News)" wrote in message
...
In article ,
William Sommerwerck wrote:
I don't have the time to discuss this at length, but NTSC's unfortunate
reverse-acronym was the result of poor studio standards, and is not
inherent in the system. PAL incorporated phase alternation to partly
compensate for transmission problems (non-linear group delay) in Europe.

IIRC, nowt to do with studios, but the transmission process. Hence the
tint control on NTSC sets which is absent on PAL ones.

The implication of "never twice the same color" was that there was something
inherently unstable in the system.

The US had high-quality microwave transmission systems with excellent timing
and group delay characteristics. Europe did not.

Are you referring to the studio to transmitter links?...


The cross country network feeds, that were owned & operated by AT&T.
Those were replaced by C & KU band satellite feeds in the '80s. Some TV
stations now feed CATV headends via fiber optic. They maintain the off
air equipment as a backup, in case of a failure in the F-O path.

I was a TV Broadcast Engineer in the '70s - '90s in the US.

--
You can't have a sense of humor, if you have no sense!