[TowerTalk] Adjusting SWR

[Jim Lux]

since you're going to be mounting the antenna next to a "big metal thing"
when in use, one would want to adjust it in a similar configuration.  Is the
vertical a ground plane or a multiple dipole co-linear array?  In either
case, you'd want to bolt the antenna to your tower a few feet (say, 6?) off
the ground (far enough that the ground is more than 1 wavelength away) and
so that there aren't any other "big metal things" within a few wavelengths.


----- Original Message -----
From: <kenneth.lowrey at wright.edu>
To: <towertalk at contesting.com>
Sent: Monday, May 10, 2004 2:11 PM
Subject: [TowerTalk] Adjusting SWR


> Hello Tower Talkers,
>
> What is the accepted practice to adjust the SWR on a vertical prior to
> mounting it on the tower?  I don't want to install the antenna, and then
have
> to remove it for adjustment.
>
> I have a dual band vertical (2 meters-440 Mhz) that I intend to side mount
on
> my tower, up about 40 feet on a 55 foot tower.  I have the antenna on the
> ground, and currently the SWR is high on both bands.
>
> Your suggestions, please.
>
> Ken
> W8ND
>
>