The bottom half of this page may be of interest:
<http://www.repeater-builder.com/antenna/antenna-mounting-guidelines.pdf>
There is also a free downloadable copy of "ANTPLOT - A Side-Tower
Mounted Antenna Pattern Prediction Program " on the web page
here: <http://www.repeater-builder.com/antenna/ant-sys-index.html>
Mike WA6ILQ
At 02:02 PM 08/25/08, you wrote:
Our club has permission to mount our brand-new DB-224E on the side
of the local hospital's tower, about halfway up (90'). We want
maximum signal to the north-east, so will be mounting the antenna on
the NE leg of the tower, with all 4 elements on the NE side of the mast.
Is it necessary to use a stand-off bracket? Or would it be OK to
mount the mast right next to the tower leg using the bracket(s) that
came with the antenna? I don't care about performance to the
south-west; actually a null to the SW would be good to minimize
interference from a co-channel system only 100 miles away.
73,
--Don-- W8DPK
