User Guide

4
Specications
LA-122 Specications
Architectural Specications
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 at 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 exible antenna radials. The Listen LA-122 Universal
Antenna Kit is specied.
Specification
Specications are subject to change without notication
Specications LA-122
Center Frequencies 73.50 MHz and 216.50 MHz
Antenna Types Monopole and Dipole
Antenna Segment Lengths
(same for both rigid and exible antennas) 72 MHz: 39.25
in (1.0 m); 216 MHz: 12.25 in. (31.1 cm)
Antenna Gain Unity
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, exible 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 (available 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. (70 mm) x 16.3 in. (415 mm) x 17.1 in. (435 mm)
Weight 4.4 lbs. (2 kg)