*SPAM 50* - :Re: Herald: sticking points in the Carr issue

[Dan.Strassberg]

But it's even more complicated that that! Because of the required
protections to stations to the west, nearly all Class B AMs in the
east must directionalize to the east (at least at night) and,
therefore, must be sited west of their COLs. Even WRKO's largely
north-south patterns conform to that rule; the radiation--even by
day--to the west is much less than that to the east. In WRKO's case,
Hildreth had to serve the then WLAW's then CoL of Lawrence in addition
to the community he was REALLY targeting--Boston. AND in those days,
an AM had to deliver at least 25 mV/m to its CoL's "principal
business district" (later interpreted as the main post office).
Because of the abysmal soil conductivity in southeastern New England,
what was then WHDH (AM) could not run ND days because the signal in
downtown Boston would have been inadequate. Similarly, WLAW HAD to
have a north-south pattern to deliver an adequate signal to both
Boston and Lawrence. Remember too, that when WLAW moved from Andover
to Burlington in 1947, it ran DA-1 (with the current night pattern)
and the lack of coverage of what is now known as MetroWest was not
considered a major problem because the population density out there
was not very great.

-----
Dan Strassberg (dan.strassberg@att.net)
eFax 1-707-215-6367

----- Original Message ----- 
From: "Sid Schweiger" <sid@wrko.com>
To: "A. Joseph Ross" <Joe@attorneyross.com>; "Bob Nelson"
<raccoonradio@gmail.com>; "Laurence Glavin" <lglavin@mail.com>; "Roger
Kirk" <rogerkirk@ttlc.net>
Cc: "BostonRadio Mailing List"
<boston-radio-interest@rolinin.bostonradio.org>
Sent: Friday, August 31, 2007 6:56 AM
Subject: *SPAM 50* - :Re: Herald: sticking points in the Carr issue


>>>One time, when I was co-hosting a "Let's Talk About
> Radio", Bob Bittner said he possessed or saw a population density
> map
> of the Boston urban area from before the buildout of arterial roads,
> and the population at that time dropped precipitously one you got
> past
>
> Waltham. Thus when the antenna designs were made for those outlets<<
>
> Not entirely.  While population to be served certainly is a factor,
> so
> is skywave protection of the (at the time) 1-A signals.  WRKO's
> nulls
> protect KNBR/SF, and WEEI's protect KOA/Denver.
>
>
>
> Sid Schweiger
> IT Manager, Entercom New England
> WAAF - WEEI AM/FM - WKAF
> WMKK - WRKO - WVEI AM/FM
> 20 Guest St / 3d Floor
> Boston MA  02135-2040
> Phone: 617-779-5369
> Fax: 617-779-5379
> E-Mail: sid@wrko.com