Listen Technologies LA-122 User Manual 2
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Thank you and enjoy your listening experience!
Best regards,
Russell Gentner and the Listen Team
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Assistive Listening • Language Interpretation • Soundeld • Tour Group • Conferencing
LA-122 Table of Contents
Package Contents 3
Architectural Specications 4
Specications 4
Setup Instructions 5
Dipole Antenna Mounting Options 8
Monopole Antenna Mounting Options 12
Optional Accessories 15
Troubleshooting 16
Compliance Notice/ FCC Statement 17
Warranty/ Contacting Listen 18
Notes 19
Table of Contents
Package Contents
Specications
Setup Instructions
Information
1
LA-122 Package Contents
LA-122 Contents
• Wall/Electrical Box Mounting Plate
• Mounting Bracket
• Antenna Module and 25 ft. (7.6 m) RG58 coaxial cable
with BNC Connectors
• Telescoping antennas (2 for both 72 and 216 MHz)
• Flexible antennas (2 for both 72 and 216 MHz)
• Ground Plane and Shorting Plate
• Mounting Hardware:
(4) #6-32 Machine Screws - used to mount to a single or
dual gang duplex box
(4) #8-32 Machine Screws - used to mount to a square or
hex junction or light box
(4) #8 Sheet Metal Screws - used to mount to metal or
wood, or for use with dry anchors
(4) Dry Anchors - used to mount to drywall, concrete, plas-
ter, brick, or masonry
(2) Hex Kep Nuts (#10-32) and one (1) Fiber Washer - used
for mounting exible antennas to the Antenna Module,
and for grounding purposes
Use With:
LT-800-072 Stationary Transmitter
LT-800-216 Stationary Transmitter
LT-803-072 Stationary 3-Channel FM Transmitter (72 MHz)
LR-100-072 Stationary Receiver/Power Amplier
LR-100-216 Stationary Receiver/Power Amplier
LR-600-072 Wireless FM Receiver/Speaker (72MHz)
LR-600-216 Wireless FM Receiver/Speaker (216MHz)
Listen Part Number
LA-122 Universal Remote Antenna
Package Contents
Optional Accessories
LA-127 RG58 BNC Cable Connector
LA-128 RG8 BNC Cable Connector
LA-112 RG58 Coaxial Cable
LA-113 RG8 Low Loss Coaxial Cable
LA-390 RG8/50 Ohm Low Loss
Preassembled Cable
LA-391 RG58/50 Ohm Preassembled
Cable
Mounting Options
•Wall Mount (to your electrical box)
Direct Wall Mount
•Ceiling Mount
In-Wall or In-Ceiling Mount
Mast Mount
Grounding Base
Telescoping Antennas 216 MHz
Telescoping Antennas 72 MHz
Machine Screw Dry Anchors Tapping Screws Hex Kep Nut Fiber Washer
Mounting Bracket
Wall/Electrical Box
Mounting Plate
Shorting Plate
Antenna Module
Flexible Antennas 216 MHzFlexible Antennas 72 MHz
3
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 specied.
Specification
Center Frequencies 73.50 MHz and 216.50 MHz
Antenna Types Monopole and Dipole
Antenna Segment Lengths
Antenna Gain Unity
Dipole Vertical Clearance
Connector Standard BNC
Coax Provided 25 ft. (7.6 m) RG58 with BNC connectors
Specications
Mounting Options
Mounting Hardware
Mounting Bracket Dimensions 4.5 in. (11 cm) wide x 7.0 in. (18 cm) deep x 2.5 in.
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)
LA-122 Specications
Architectural Specications
Specications LA-122
(same for both rigid and exible antennas) 72 MHz: 39.25
in (1.0 m); 216 MHz: 12.25 in. (31.1 cm)
72 MHz: 79.75 in. (2.03 m); 216 MHz: 25.75 in.
(65.4 cm)
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
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)
(6.4 cm) high
Specications are subject to change without notication
4
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