[OKDXA] Dipole Antenna Question

Thu, 31 Oct 2002 15:10:21 -0600

Jerry:

If I remember correctly, if you raise the ends, it raises the resonant
frequency.  I believe this is correct, but I would get a second opinion.

73's
Alan, N5PA

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of [email protected]
Sent: Thursday, October 31, 2002 3:05 PM
To: [email protected]
Subject: [OKDXA] Dipole Antenna Question

Builders of wire antennas I have a question that likely could be answered by
a scan thru the pages of the ARRL handbook but I figure I can get a quicker
(possibly even wiser (wiser to mean intelligent vs. wise acre) with a query
here.

I'm putting up 20 mtr and 40 mtr dipoles for alternate antennas and have
constructed them using the familiar 468/freq/2 per leg.  I hoisted each on a
mast (approx. 35') and tied off the ends at a lesser height.  They almost
resemble Vees.  SWR is about 1.5:1 at my design freq. on each and my
question is:

When I install them permanently I will get them to the dipole (horizontal)
position vs. a vee looking position.  If I get them to a flat SWR in my test
position, Vee with a 35' center what should I expect the SWR to do?  My
thinking is some of you have an answer that can let me trim/add while I'm
testing before I hoist them into operating positions.

Knowledgable responses will be gratefully accepted.

73 - Jerry K5YAA

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