Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Listen Technologies LA-122
Summary of Contents for Listen Technologies LA-122
- Page 3 Here’s how to reach us: +1.801.233.8992 +1.800.330.0891 +1.801.233.8995 support@listentech.com www.listentech.com Thank you and enjoy your listening experience! Best regards, Russell Gentner and the Listen Team • In the few instances where repairs were needed, 99% of all clients indicated that they were happy with repair turn-around-times and 85% of the time, clients were without their product for less than 10 days! •...
-
Page 5: Table Of Contents
LA-122 Table of Contents Package Contents Architectural Specifi cations Specifi cations Setup Instructions Dipole Antenna Mounting Options Monopole Antenna Mounting Options Optional Accessories Troubleshooting Compliance Notice/ FCC Statement Warranty/ Contacting Listen Notes... -
Page 7: 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) •... -
Page 8: Architectural Specifi Cations
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 fl exible antenna radials. The Listen LA-122 Universal Antenna Kit is specifi ed. -
Page 9: Coaxial Cable
100 feet for 72 MHz applications, we recommend that you use RG-8 cable rather than RG-58. It is a lower loss cable, meaning that more of your signal will reach the antenna. Long cable runs can result in signal degradation due to “loss” characteristics of the cable. At 72 MHz, there is a loss of 2 dB per 100 feet of cable and at 216 MHz, there is a loss of 5 dB per 100 feet of cable. - Page 10 “GROUND” molded into the plastic. See Diagram A. If it is necessary to locate an antenna low on a wall, the ground side should face down. If you are mounting a monopole antenna in a ceiling or high on a wall, the ground side should face UP.
- Page 11 If you can’t fully extend the rigid dipole, you will need to go with either the fl exible dipole or the monopole antenna. We recommend using a dipole antenna whenever possible.
-
Page 12: Dipole Antenna Mounting Options
Dipole Antenna Mounting Options Mount to an Electrical Box in a Wall See Diagram B at right The antenna may be mounted to a single or dual gang duplex box, or to a square or hexagonal junction box. Attach the kit’s Mounting Plate to the electrical box (see photo, right). - Page 13 Mounting Inside a Wall or Ceiling See Diagrams D and E The antenna may be hidden inside a wall or ceiling. IMPORTANT: Do not install the antenna inside a metal wall or ceiling, as this would obstruct the signal. You will use a fl exible dipole (the fl oppy wires) in this confi guration. Select the correct wires for your confi...
- Page 14 IMPORTANT (see Diagram F at left): When installing an antenna on a metal mast, make sure the mast does not extend above the antenna module. If you are mounting the antenna in a high location (such as a stadium), the active element should be at the bottom.
- Page 15 Rigid dipole sections screw onto the opposite sides of the antenna module, and are then fully extended. Using half of a fl exible dipole for grounding a rigid dipole. This is a good choice when you don’t have...
-
Page 16: Monopole Antenna Mounting Options
If you do not have access to a grounded box, you will need to attach a fl exible antenna element to the ground side of the Antenna Module (see Diagram I). Be sure to use the correct length element (longer wire for 72 MHz, shorter one for 216 MHz). - Page 17 Mount to a Metal Surface Using the Ground Plane and Shorting Plate See Diagram J It is often convenient to place an antenna on top of a metal equipment rack. In order for the antenna to function properly, it must be secured to the equipment rack using the Grounding Plate and Grounding Base.
- Page 18 Monopole Antenna Mounting Options Mounting a Monopole Antenna to a Metal Beam or Metal Ceiling See Diagram K Follow the instructions for mounting to a metal equipment rack, orienting the antenna downward rather than upward. Mounting a Monopole Antenna to a...
-
Page 19: Optional Accessories
Optional Accessories Cable & Connectors Accessories LA-112 RG-58 50 Ohm Coaxial Cable (per ft.) LA-128 RG-8 BNC Connector RG-8 50 Ohm Preassembled LA-113 RG-8 50 Ohm Low-Loss Coaxial Cable (per ft.) LA-390 Coaxial Cable (per ft.) LA-127 RG-58 BNC Connector LA-391 RG-58 50 Ohm Preassembled Coaxial Cable (per ft.) -
Page 20: Troubleshooting
If you are still having problems after checking the above items, call Listen for help. We are available from 8am to 5pm Mountain time, Monday through Friday, at 800.330.0891 or 801.233.8992, or you can e-mail us at support@listentech.com. Our full contact information is available on page 1 of this manual. Troubleshooting... -
Page 21: Compliance Notice & Fcc Statement
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. -
Page 22: Warranty/ Contacting Listen
Listen’s corporate headquarters are located in Bluffdale, Utah U.S.A. and are open Monday through Friday, 8am to 5pm Mountain Time. 14912 Heritagecrest Way Bluffdale, Utah 84065-4818 +1.801.233.8992 +1.800.330.0891 North America +1.801.233.8995 fax support@listentech.com www.listentech.com Warranty Contacting Listen Listen Technologies GmbH Jasminstr.16, 90522 Oberasbach, Germany +49 911 955 159 0... -
Page 23: Notes
Notes... - Page 24 Listen Technologies Corporation 14912 Heritagecrest Way Bluffdale, Utah 84065-4818, U.S.A. +1.801.233.8992 +1.800.330.0891 North America +1.801.233.8995 www.listentech.com Printed in the United States of America © 2008 Listen Technologies Corporation ® All Rights Reserved 011108...
Need help?
Do you have a question about the LA-122 and is the answer not in the manual?
Questions and answers