I used a small Tennadyne log periodic at a Virgin Island home that I rented
three months ago. I did not recall any hanging coax so a few minutes ago O
looked at my photos and discovered that the coax was taped to the live boom.
At the time I never gave this much thought, perhaps visiting the rum factory
was a higher priority:) This is a very interesting subject and I will
definitely make the station owner aware of the towertalk posts.
73,
John KK9A WP2AA
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Log Periodic Feed
From: "James Wolf" <jbwolf@comcast.net>
Reply-to: jbwolf@comcast.net
Date: Fri, 8 Jul 2016 10:04:19 -0400
The feedline should drop down vertically from its attachment point to the
two booms and then turn and run parallel to the two booms, but below them by
6 to 12 inches, so there is minimal disruption to the open wire line. IMHO,
taping it to either boom makes no engineering sense at all. It does make
marketing sense, in that the antenna might sell better if they show a nice
"clean" installation vs the feedline hanging down.
Some TV antennas are designed this way, and you never see the coax taped to
the booms. It just hangs down.
Rick N6RK
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