[TowerTalk] 4 Square Dipole array: VSWR issue, has anyone modeled it?

[D. Rodman, MD]

I put up a single dipole for a proposed 4 Square dipole array.  Top about
135' and 3-4 ft away from top of tower and bottom is about 40'  I did not
feed the RG8X towards tower, but let it dangle and got best VSWR about 1.7
at intended freq.  Dipole fed with W2DU balun, hot side up and each leg
was 63' long.  I will probably string coax perpendicular to tower and try
to remeasure tomorrow.  I have lots of antennas on tower, including 40 m
yagi at 140' and three 10 meter beams below.  Anyone modeled this?  Anyone
have hints on how to bring the VSWR down?  73, Dave.

David J. Rodman, MD 

Assistant Clinical Professor 
Department of Ophthalmology 

Research Assistant Professor
Department of Chemistry

State University of New York at Buffalo

FAX 716-859-4565 
Office 716-854-1137

e-mail: rodman at acsu.buffalo.edu