Fwd: Re: Signal Transmission and Delay

["Laurence Glavin" <lglavin@lycos.com>]

 Speaking of delays, something unusual happens when Boston's WCVB-TV and Manchester, NH's
WMUR-TV take the ABC feed of the evening news at 6:30 pm Saturdays and Sundays...
the news on WCVB is shown about a minute-and-a-half to 32 minutes ahead of WMUR.
If you're watching on the Boston channel and you miss something, flip to WMUR and
it will pop up again a short time later!  Am I the only one to notice this?
And why and how do they do it?

Laurence Glavin
Methuen, MA--

--------- Forwarded Message ---------

DATE: Thu, 25 Jul 2002 21:34:04
From: Larry Weil <kc1ih@mac.com>
To: "Daniel Murphy" <danmurph@worldnet.att.net>,"Boston Radio Interest Group" <boston-radio-interest@bostonradio.org>

At 09:09 PM 7/25/02 -0400, Daniel Murphy wrote:

>This is a question for the more technical among you. I've noticed that when
>listening to a syndicated show on a distant station, and then quickly tuning
>in the same show on a Boston station, that there is a 1 to 2 second delay on
>the Boston station. I was wondering why this happens, and more generally,
>how is a syndicated show actually sent to stations where it is broadcast
>locally.

If it's done the same in radio as it is in TV, the show is sent in advance 
by satellite and recorded by each station.  Each station then rolls the 
tape (or hard drive server) at it's air time for that program.  As for why 
the Boston stations would roll a second or two later than other stations, I 
don't know.
---
Larry Weil
Lake Wobegone, NH


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