[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: WLLH-AM Lawrence transmitter off-air
My recollection is quite different. I remember hearing WBZ and WBZA duke it
out as I drove along Route 9 (pre Mass Turnpike) west of Worcester. At the
time, I wondered why there was a beat note (a fraction of a Hz, or cps as Hz
was known back then). It finally dawned on me that it might well not have
been a beat note but rather might have been standing waves. Most likely, in
fact, it was a combination of standing waves and phase noise. At one point,
I believe that Westinghouse maintained a coaxial link between Hull and
Springfield. That way, they could dispense with the frequency division and
multiplication. However, such a link woulld have to have included
amplifiers, and the amplifiers would have introduced some phase noise,
though less than that of a frequency multiplier. The coaxial link, if
indeed, it really existed, would have been extremely expensive to install
and maintain, but in the early days of TV, I think that's how TV networks
distributed their programming.
--
Dan Strassberg, dan.strassberg@worldnet.att.net
Phone: 1-617-558-4205, eFax: 1-707-215-6367
-----Original Message-----
From: A. Joseph Ross <lawyer@world.std.com>
To: dan.strassberg@att.net <dan.strassberg@att.net>; SteveOrdinetz
<steveord@wavewizard.com>; Dan Strassberg <Dan.Strassberg@worldnet.att.net>
Cc: BostonRadio <boston-radio-interest@bostonradio.org>
Date: Wednesday, January 12, 2000 1:14 AM
Subject: Re: WLLH-AM Lawrence transmitter off-air
How did they handle WBZ and WBZA? I remember in the 1950s, when we drove
between Albany and Boston, we sometimes had the car radio on to WBZ, and
we never could tell where the WBZ signal left off and WBZA began.
I remember one time my mother insisted we must be listening to WBZ, not
WBZA because the man on the radio said, "This is WBZ..." I knew better,
even then.