Listen Technologies LA-117 دليل المستخدم

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LA-116_117_Spreads_2004_07_30.qxp 8/2/2004 1:38 PM Page 5
User’s Manual
Coaxial Dipole Antenna
LA-116 (72MHz)
LA-117 (216MHz)
Use With:
LT-800 Stationary Transmitter
LR-100 Stationary Receiver / Power Amplifier
LR-600 Wireless Speaker / Receiver
Listen Technologies Corporation
8535 South 700 West, Suite A
Sandy, Utah 84070-2515 USA
Telephone: +1.801.233.8992
Don’t miss a single sound. Listen.
Toll Free (North America): 1.800.330.0891
Fax: +1.801.233.8995
E-mail: info@ListenTech.com

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LA-116_117_Spreads_2004_07_30.qxp 8/2/2004 1:37 PM Page 2 Coaxial Dipole Antenna Installation Mount the antenna vertically as shown with radial mountaing depending on your application. (If installation is above 50 feet from the ground, see diagram A. If installation is below 50 feet, see diagram B.) Antenna should be mounted in such a way as to provide line of sight to receivers. In general, the higher the mounting the better. NOTE: You will need 76” of vertical clearance to mount the 7

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Specifications LA-116_117_Spreads_2004_07_30.qxp 8/2/2004 1:38 PM Page 3 Installation continued Ground Level Installations When the antenna is to be mounted at or near ground level (less than 50 feet above ground), mount the antenna such that the “radial” is pointed UP. Radial UP Below 50' (15.24m) IMPORTANT Make sure the feed line does not protrude above the radial side, at least within 12 feet (3.65m) of the antenna. NOTE: A LA-121 BNC adapter is required when using the LA-116 (72MHz) with

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LA-116_117_Spreads_2004_07_30.qxp 8/2/2004 1:38 PM Page 4 Specifications LA-116 Frequency range 72.025 - 75.975 MHz Center frequency of 73.5 MHz Length 76 in (193cm) Connector Standard BNC Gain Unity Coax Cable RG-58 LA-117 Frequency range 216.0125 - 216.9875 MHz Center frequency of 216.5 MHz Length 24 in (61cm) Connector Standard BNC Gain Unity Coax Cable RG-58 Listen Technologies Corporation 8535 South 700 West, Suite A Sandy, Utah 84070-2515 USA Telephone: +1.801.233.8992 Toll Free (North