The Mosley TD-2W is a commercial example of what you are looking for. I had
the three band version (TD-3W), which covered all three WARC bands with a
single trap assembly. The -2W I am sure is similar.
You could build an equivalent using telescoping tubing and a home made trap.
You can model the thing with AO (as I did) or other modeling programs to
find out what the trap neds to be and where to place it.
From: James Sullivan [mailto:email@example.com]
Sent: Friday, April 07, 2006 1:55 PM
Subject: [TowerTalk] Looking for 12M and 17M rotating Dipole ideas
I want to construct a rotating dipole for 24Mhz and 18Mhz with a single feed
Does any one have any construction details, experience, ideas....
It could be made using traps or separate elements on a very short boom.
The one feedline and rotating capbility are the main requirements
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