[Towertalk] Vertical Dipole for 40/80/160

[Jim Apple]

        I'm trying to build a 40/80/160 vertical
dipole.  

        Here is the basic idea

----[80 trap]---[40 trap]--o--[40 trap]---[80 trap]---
                           |
                           |
                           | 35' vertical section
                           |
                           |
                           === 50 ohm coax feed
                           |
                           |
                           |
                           |
                           |
----[80 trap]---[40 trap]--o--[40 trap]---[80
trap]----

                           6' off ground

        ---------------- ground ---------------

Questions:

        1. First off, is this crazy ? it's a
combination of several designs.  Sometimes 1+1 is 2
and sometimes it's just dumb ;-)

        2. What should I estimate formula to esitmate
the length of the T sections ? The only thing I have
seen is a reference tobetween difference bettween the
vertical section and a full 1/4 wv. 

        Any other comments ?

Thanks in advance.

- Jim

=====
- Jim Apple (WB1DOG)

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