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Re: [IRCA] Tower height vs power
- Subject: Re: [IRCA] Tower height vs power
- From: Charles A Taylor <MWDXer@xxxxxxx>
- Date: Sat, 03 Feb 2007 18:16:10 -0500
At 11:41 AM 2/3/2007 -0800, you wrote:
>I have never seen nor heard of any AM Broadcast station -- ever trying to
>use a full wave length tower. It would be very very difficult to
>feed. Does anyone know of any AM broadcaster using a full wave tower ???
Mike,
Disagree. Standard theory suggests that a full-wave tower would have a
rather low impedance, requiring some unusual matching, but nothing
insurmountable. Alternative feed method would be to ground the tower and
run a feedwire up the side of the tower to a point where the feed impedance
would be more typical.
In principle, it should be possible to find a point at a fraction of the
tower's height where there would be a 52-ohm resistive match exactly.
73 de Charlie
-----
Charles A Taylor, WD4INP
Greenville, North Carolina
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