Listen Technologies LA-116 User manual

Installation
Installation
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Radial DOWN
Mount the antenna vertically as shown with radial mounting
depending on your application. (If installation is above 50 feet from the
ground, see diagram A. If installation is below 50 feet, see diagram B.)
Antenna should be mounted in such a way as to provide line-of-sight to
receivers. In general, the higher the mounting the better. NOTE: You will
need 76” of vertical clearance to mount the 72MHz antenna (LA-116) and
24” of vertical clearance to mount the 216MHz antenna (LA-117).
In larger facilities (such as an arena or gymnasium)
where the antenna is mounted substantially higher
than users, mount the antenna such that the
“radial” is mounted DOWN.
Higher Level Installations
IMPORTANT: Make sure the feed line does
not protrude below the
radial side, at least within
12 feet (3.7m) of the antenna.
DIAGRAM A

Installation
Installation
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Radial UP
When the antenna is to be mounted at or near ground level
(less than 50 feet above ground), mount the antenna such
that the “radial” is pointed UP.
Ground Level Installations
IMPORTANT: Make sure the feed line does not protrude
above the radial side, at least within
12 feet (3.7m) of the antenna.
DIAGRAM B

Listen Technologies Corporation
14912 Heritagecrest Way
Salt Lake City, Utah 84065-4818, U.S.A.
801.233.8992
800.330.0891 North America
801.233.8995 fax
www.listentech.com
Printed in the United States of America
© 2006 Listen Technologies Corporation®All Rights Reserved 2006821
Specications
LA-116
Frequency Range 72.025 - 75.975 MHz
Center frequency of 73.5 MHz
Length 76 in (193cm)
Connector Standard BNC
Gain Unity
Coax Cable RG-58
LA-117
Frequency Range 216.0125 - 216.9875 MHz
Center frequency of 216.5 MHz
Length 24 in (61cm)
Connector Standard BNC
Gain Unity
Coax Cable RG-58
•Specications are subject to change without notication.