[BC] The KGO Towers

[Ron Castro]

Do you know if there was an FAA concern about the height, considering you 
have to fly in over or near those towers when approaching SFO?

Ron Castro
Chief Technical Officer
Results Radio, LLC


----- Original Message ----- 
From: "Art Lebermann" <artleb at earthlink.net>
To: <broadcast at radiolists.net>
Cc: <PeterH5322 at aol.com>
Sent: Wednesday, May 18, 2005 10:33 PM
Subject: [BC] The KGO Towers


>I found your recent comments on "Conductivity vs Skywave" of particular
> interest, as I'm Transmitter Engineer for KGO Radio.  I must argue with
> your statement that the 90 degree towers at KGO are an example of an
> antenna system done "on the cheap".  The present KGO site was built in 
> 1947
> by ABC, shortly after the division of the "Red" and "Blue" networks.  This
> facility was "first class", and featured one of the first installations of
> an air-cooled 50,000 watt transmitter.  Looking back, it's easy to say 
> that
> that the towers are "too short" - but I seriously doubt that this choice
> was made because of "budget considerations".  I have the original DA proof
> (from 1947) in my files, but I have no documents discussing the DA design
> goals.  Considering the environment for AM Broadcasting in 1947, and the
> coverage which KGO desired, I'd make an "educated guess" that the higher
> angle of radiation from a 90 degree tower was considered a "plus" for
> extended skywave service.
>
> Art Lebermann, CPBE
> Transmitter Engineer
> ABC Radio - KGO / KSFO / KMKY
>
> Chairman, SBE Chapter 40
> Amateur Radio - W6REQ
>
>
>
>
> --- Art Lebermann
> --- artleb at earthlink.net
> --- EarthLink: The #1 provider of the Real Internet.
>
>
>
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