Filter
Top Products
Contents of Kit ............................................................................... page 2
Specifications ................................................................................ page 3
Architectural Specifications .......................................................... page 3
Important Things to Note Before Starting .................................... page 4
Selecting an Antenna Location ..................................................... page 6
Choosing Which Antenna to Use .................................................. page 6
Dipole Antenna Mounting Options ................................................ page 7
Monopole Antenna Mounting Options ......................................... page 11
Troubleshooting ............................................................................. page 14
Warranty ......................................................................................... page 16
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
Specifications
Center Frequencies: 73.50 MHz and 216.50 MHz
Antenna Types: Monopole and Dipole
Antenna Gain: Unity
Antenna Segment Lengths: (same for both rigid and flexible antennas)
72 MHz: 39.25 in (1.0 m); 216 MHz: 12.25 in (31.1 cm)
Dipole Vertical Clearance: 72 MHz: 79.75 in (2.03 m); 216 MHz: 25.75 in (65.4 cm)
Connector: Standard BNC
Coax Provided: 25 ft (7.6 m) RG58 with BNC connectors
Mounting Options: Wall mount, dual and single electrical box, ceiling electrical box,
horizontal surface mount (such as on top of a rack), ceiling /
inverse mounting, flexible mounting in-wall or in-ceiling and
mast or conduit mount
Mounting Hardware: Provided. Includes self-tapping sheet metal screws, drywall
anchors, and all hardware required to mount to electrical boxes.
Does not include hardware required to mount to a mast (avail-
able at most hardware stores)
Mounting Bracket Dimensions:4.5 in (11 cm) wide x 7.0 in (18 cm) deep x 2.5 in(6.4 cm) high
Mounting Plate Dimensions: 4.48 in (11.4 cm) x 4.55 in (11.6 cm)
Shipping Box Dimensions: 2.76 in x 16.3 in x 17.1 in
(70 mm x 415 mm x 435 mm)
Weight: 4.4 Lbs. (2 kg)
Architectural Specifications
The Universal Antenna Kit shall be capable of operating from 72.0 to 76.0 MHz with a
center frequency of 73.5 MHz and from 216.0 to 217.0 MHz with a center frequency of
216.5 MHz. The kit shall include the necessary mounting hardware to mount the
antenna on a single or dual electrical box, directly on a wall, on a ceiling electrical box
or on a flat surface. The antenna shall have a BNC connector and the kit shall come
with 25 ft (7.6 m) of RG58 coax with BNC connectors. The kit shall include rigid and
flexible antenna radials. The Listen LA-122 Universal Antenna Kit is specified.
Table of Contents
3