[BC] WLW--when it was 500 kW

[Mark Durenberger]

And one of the simpler designs...with the longest story behind it...is KOB 
770 in Albuquerque.  Two towers (reluctantly) in line toward New York.

Mark Durenberger


----- Original Message ----- 
From: <PeterH5322 at aol.com>
To: <broadcast at radiolists.net>
Sent: Tuesday, July 05, 2005 6:25 PM
Subject: Re: Re: [BC] WLW--when it was 500 kW


>> Meanwhile, though, we have this from Randy Michaels, who recalls that
>> there were two towers, one west of the current tower, the other south,
>> behind what's now a shopping center on 22:
>>
>> "I don't think the towers were passive. There were two shorter (90
>> degree, I think) towers that were part of the DA. I have an original
>> copy of the tune-up study and can check. That array was the first array
>> designed for pertinent vertical angle suppression.
>
> SOP for vertical angle suppression is the electrically tallest towers
> bear towards the station to be protected by such suppression.
>
> KSTP uses three towers in-line array (one is top-loaded, two are equal
> physical height), with the electrical heights decreasing away from WTOP
> (184.0 + 32.5 = 216.5 degrees; 184.0 + 0.0 = 184.0 degrees; 160.0 + 0.0 =
> 160.0 degrees).
>
> Ditto for the old KRLA four tower in-line array (none were top-loaded),
> with the electrical heghts decreasing away from KFAB (180 degrees; 135
> degrees; 135 degrees; 90 degrees).
>
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