Listen Technologies UNIVERSAL ANTENNA KIT LA-122 - Manual (Page 18)

14
Setup Instructions
Monopole Antenna Mounting Options
Follow the instructions for mounting to a
metal equipment rack, orienting the
antenna downward rather than upward.
See Diagram L
Follow the instructions for mounting to a metal
equipment rack, however, there are two
additional steps:
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
configuration.
Drill a hole in the non-conductive surface
and run the flexible antenna through the
hole. This antenna will provide the ground
for your antenna since the non-conductive
surface cannot supply 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
element. Secure the antenna through the
connection lug at the end of the wire.
Mounting a Monopole Antenna to a Metal Beam or Metal Ceiling
See Diagram K
Diagram K. Inverse Mounting
of a monopole
Diagram L. Mounting a monopole on a non-conductive
surface. Use of the flexible wire creates a dipole, which is
a better antenna than the monopole.
Mounting a Monopole Antenna to a
Non-Conductive Surface
Flexible antenna used
as ground
Hole drilled
in surface
1
2