Herald: Where have you gone Air America

[Dan Strassberg]

I'd be willing to bet that if KOA were WEEI's only limitation at night, some
relaxation of the night pattern to the west would be quite possible. A
decade or so ago (I think it was sometime in the 90s), the FCC changed the
equations used for determining Class A stations' 0.5 mV/m 50% skywave
contours. The more southerly the Class A's location, the smaller the effect,
but KOA is reasonably far north and undoubtedly had the radius of its
protected contour reduced by at least 150 miles. (The Chicago ex-IAs'
protected contours now extend only a little way past Buffalo!). On 850, KHHO
Tacoma recently let out its night pattern to the east just a bit to take
advantage of the change. However, WEEI must now protect a bunch of stations
in the east, the oldest of which is, I guess, WRMR, but there is Montreal
(now dark but still requiring protection), Norfolk, Raleigh, Johnstown, and
I'm sure others that I didn't think of. Too bad that whoever owned 850 at
the time didn't think of it because there may have been a time window during
which useful action was possible. I suspect that the night signal might have
been made quite acceptable well into Framingham--in places where it is not
very usable because of the combination of low signal strength, phasing, and
co-channel interference.

--
Dan Strassberg, dan.strassberg@att.net
eFax 707-215-6367

----- Original Message -----
From: "Sid Schweiger" <sid@wrko.com>
To: <boston-radio-interest@rolinin.bostonradio.org>
Sent: Tuesday, September 19, 2006 4:28 PM
Subject: Re: Herald: Where have you gone Air America


> >>suppose CC bought WEZE 590 from Salem,
> and put prog talk there. How would it do signal wise? Just looked up
> on radio-locator.com--not too well to west but strong to north and south.
(But I'm sure that
> limited signal is one reason WEEI migrated to 850 in the early 90s...)<<
>
> WEEI is limited in its westward radiation as well, since it must protect
co-channel KOA in Denver.
>
>
>
> Sid Schweiger
> IT Manager, Entercom Boston LLC
> 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
>
>