[Antennas] Trapped dipole

[Igor Sokolov]

Provided you will keep the L/C ratio of the trap the same as in the
original design the length of the wire will be the same.

73, Igor UA9CDC

----- Original Message -----
From: <solo22 at sbcglobal.net>
To: "Antenna net" <antennas at mailman.qth.net>
Sent: Tuesday, October 25, 2005 9:13 PM
Subject: [Antennas] Trapped dipole


> Question for the group. Last year,  I built a excellent working
40/75
> meter inverted vee designed by W8NX.  It was called "An Improved
> Multiband Trap Dipole Antenna".  Again, it worked very well.  My
> complaint is the traps are made by wrapping two pieces of RG-59U
coax on
> a 5 in? PVC pipe about 6 in long.  They look like milk cans up in
the
> sky!  And you know the '59U changes drastically after a summer in
the
> sun.  It's benefits are;  short (about 81 ft long), and the whole
> antenna radiates on each band.   What I want to know is this,  if I
use
> a button mica for the cap and I wind a coil in parallel to resonate
on
> the original trap's frequency (5.3 mhz) will the wire lengths stay
about
> the same?  Or, will I be opening up a bucket of worms.  And help
> appreciated.  Oh, I do have a bad space problem here.  Thanks,  Ron
K6ZL
>
>
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