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Mounting a Monopole Antenna to a
Metal Beam or Metal Ceiling
See Diagram K
Follow the instructions for mounting to a
metal equipment rack, orienting the antenna
downward rather than upward.
Mounting a Monopole Antenna to a
Non-Conductive Surface
Follow the instructions for mounting to a
metal equipment rack, however, there are
two additional steps:
1. Connect a length of flexible antenna
(appropriate to the frequency you are
using) on the ground post of the antenna
module under the Hex Kep nut. You will
NOT use the shorting plate in this con-
figuration.
2. Drill a hole in the non-conductive sur-
face and run the flexible antenna
through the hole. This antenna will pro-
vide the ground for your antenna since
the non-conductive surface cannot sup-
ply a ground.
If you are mounting the monopole upside
down on a ceiling, run the flexible length
inside the ceiling and stretch it out as far as
possible from the monopole antenna ele-
ment. Secure the antenna through the con-
nection lug at the end of the wire.
LA-122 Universal Antenna Kit
LISTEN TECHNOLOGIES CORPORATION 8535 South 700 West, Suite A Sandy, Utah 84070-2515 USA
Phone: +1.801.233.8992 USA Toll Free: 1.800.330.0891 Fax:+1.801.233.8995 e-mail: info@listentech.com
See Diagram L
Diagram K. Inverse mounting of a monopole.
Diagram L. Mounting a monopole on a non-conduc-
tive surface. Use of the flexible wire creates a
dipole, which is a better antenna than the monopole.
Flexible antenna used
as ground
Hole drilled
in surface
13