Listen Technologies LA-122 User Manual

LA-122 Universal Antenna Kit

updated 07.20.05 Listen®and the Listen logo are registered trademarks of Listen Technologies Corporation

Listen Technologies Corporation

8535 South 700 West, Suite A
Sandy, UT 84070-2515 U.S.A.
Phone: [phone] or 1.800.330.0891
Fax: [phone]
Email: [e-mail]

Listen's LA-122 Universal Antenna Kit is the ONE solution for all
your remote antenna needs. The kit contains both 72 MHz and
216 MHz antennas; monopole and dipole antenna options; and
hardware to mount on a wall, on electrical boxes, on a

horizontal surface (flat and inverse), inside a wall or ceiling. It
can also be mast mounted (hardware not included). See the list below for a few
of the possibilities.

• Includes both 72 MHz and 216 MHz antennas

• Monopole and dipole antenna options
included

• Rigid and flexible radials are included

• All hardware to mount on a wall, on electrical
boxes, on a horizontal surface (flat and
inverse), inside a wall or ceiling is included

Specify Part

Number

LA-122

Mounting Possibilities

1. Wall mount dipole* or monopole

2. Flexible dipole (in a wall or rafter area)

3. Horizontal surface monopole (up or down)

4. Mast or conduit mount

5. Electrical box monopole inverse ceiling mount

6. Electrical box wall mount dipole* or monopole (Single or double gang)

*Dipole antenna configuration recommended for bet range/coverage. Should be oriented vertically for best results. Not weather proof or wind
resistant. All of this and other information is available at www.ListenTech.com

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Don't miss a single sound.

LA-122 Universal Antenna Kit

updated 07.20.05

Specifications 72 MHz 216 MHz

Frequencies 72.0 - 76.0 MHz 216.0- 216.9875 MHz
Center Frequencies 73.50 MHz 216.50 MHz
Antenna Types Monopole and dipole

Antenna Radials Rigid and flexible
Antenna Gain Unity
Dipole Vertical Clearance 79.75 in. (2.03 m) 25.75 in. (65.4 cm)
Connector RG-58 BNC
Coax Provided 25 ft. (7.6 m) RG-58, 50 ohm coaxial cable

Mounting Options

Wall mount, dual and single electrical box, ceiling electrical box, horizontal surface mount (such

as a top of a rack), ceiling/inverse mounting, flexible mounting in-wall or in ceiling and mast or

conduit mount.

Mounting Hardware

Includes self-tapping sheet metal screws, drywall anchors, and all hardware required to mount

to electrical boxes. Does not provide hardware required to mount ot a mast (available at most

hardware stores).
Mounting Bracket Dimensions 4.5 x 7.0 x 2.5 in. (11 x 18 x 6.4 cm) W x D x H
Mounting Plate Dimensions 4.48 x 4.55 in. (11.4 x 11.6 cm)
Antenna Segment Lengths 39.25 in. (1.0 m) 12.25 in. (31.1 cm)

Weight 4.4 lbs. (2 kg)
Shipping Weight 4.4 lbs. (2 kg)
Shipping Box Dimensions 16.3 x 2.76 x 17.1 in. (41.4 x 7 x 43.3 cm)

Kit Includes

1. Wall/electrical mounting plate

2. Mounting bracket

3. Antenna module

4. 25 ft. (7.6 m) coaxial cable with BNC connectors

5. Telescoping antennas (2 for both 72 and 216
MHz)

6. Flexible antennas (2 for both 72 and 216 MHz)

7. Ground plane

8. Shorting plate

9. Mounting hardware (not shown)

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 and/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 cable with BNC connectors. The kit shall include rigid and flexible antenna radials.
The Listen LA-122 Universal Antenna Kit is specified.

Architectural Specifications

Listen Technologies Corporation Phone: [phone] or 1.800.330.0891
8535 South 700 West, Suite A Fax: [phone]
Sandy, UT 84070-2515 U.S.A. Email: [e-mail]

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Don't miss a single sound.