Dan,
The direct answer to your question is to use these two websites to calculate
the inductance (coil) you will need based on your choice of location and
then to design the coil you can build.
http://ecosse.org/jack/radio/software/loading.html Calculates antenna
loading required based on location
http://ecosse.org/jack/radio/software/newcoil3.html Coil Designer - design
your own coil - build it
Suggestions of a fan dipole will be easier and faster to erect and have
increased bandwidth vs a loaded dipole as stated but if you want to play
with loaded dipoles, these websites will allow you to build what you asked
for.
73, Jim
----- Original Message -----
From: "Dan" <n5ar@air-pipe.com>
To: <TowerTalk@contesting.com>
Sent: Wednesday, March 24, 2010 9:43 PM
Subject: [TowerTalk] 40/80m dipole
>I would like to build and send to my son a coil loaded dipole for
> 80/40m. He has about 90 feet space to hang it in. Has anyone information
> on loading coil values and placement in the 90 ft dipole?
>
> Tnx, Dan, N5AR
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