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Dear Valued Customer,
Thank you for choosing Listen! All of us at Listen are dedicated to
providing you with the highest quality products available. We take
great pride in their outstanding performance because we care
that you are completely satisfied. That’s why we independently
certify them to the highest quality standards and back them with
a limited lifetime guarantee. We stand ready to answer any
questions you might have during installation or in the operation of
our products. Should you experience any problems whatsoever
with your Listen products, we are ready to help you in any way we
can with prompt, efficient customer care. Because at Listen, it’s
all about you! And should you have any comments on how we
might improve our products or our service, we’re here to listen.
801.233.8992
800.330.0891
801.233.8995
North America
fax
Thank you... and enjoy your listening experience!
Best regards,
The Listen Team
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LA-107 Package Contents
LA-107 Contents
1
2
Antenna base assembly
Three ground radials
Mounting Hardware
3
4
50 ft. (3 m) RG 58 coaxial cable with
PL-259 and LA-127 connectors
Extra LA-127 connectors
User Manual (not shown)
5
6
3
5
1
2
2
2
4
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Table of Contents
Specifications
Installation
Mounting
Shortening Coaxial Cable
Supplementary Information
Warranty
3
4
5
6
7
7
8
Contacting Listen
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LA-107 Specifications
Specifications
Specification
Frequency Range
LA-107
216.0125 - 216.9875 MHz
216.5 MHz
¼ Wave, Ground Plane
0 db (unity)
Center Frequency
Antenna Type
Unity Gain
Beam Width
Mounting
360º
Mast bracket up to 1.50 in. (4.0 cm) diameter
Size
13.50 in. (34.0 cm) base with 13.50 in. (34.0 cm) ground radials
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ꢀ
Installation
1
2
3
4
Screw ground radials into antenna base assembly and secure with
tightening nuts.
Mount your antenna in a strategic location. See “Mounting Your
LA-107” on the following page.
Connect the PL-259 end of coaxial cable to the base
of the antenna
Run coaxial cable to the LT-800 transmitter and connect the
LA-127 to the Auxiliary Antenna connection on the back of the
unit. Additional coaxial cable is available from Listen if you need
a length longer than the included 50 feet (15.24 m).
5
Listen recommends using RG8 cable for cable runs
greater than 50 feet (15.24 m).
LA-107 shown with coaxial
connection to the LT-800
Stationary Transmitter
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ꢁ
Mounting Your LA-107
Mount the antenna in a strategic location. Your antenna may be placed either
indoors or outdoors. If mounted outside, the highest elevation should not exceed
100 feet (30.5 m). The antenna should be placed in a location that will provide
the best line of sight to the receivers. Keep in mind that the higher you have the
LA-107 mounted, the more range you will get out of your receivers.
The LA-107 includes a bracket that allows it to be mast
mounted (vertical pole) up to 1.5 inches (4 cm) in diameter.
This pole can be made of metal or plastic. However, if using
a metal mast, the LA-107 should be isolated from the ground.
It is very important that your mast does not extend above the
mast end
antenna radiator. This will create interference and multi-path
to the receiver.
mast
Mount LA-107 away from power lines, telephone lines and
metal surfaces.
For maximum range, your transmitter should be set to “High”
RF power.
Run the coaxial cable from the antenna to your device,
keeping the cable length as short as possible (see page 4,
Shortening the Coaxial Cable if necessary). To optimize the
efficiency of the LA-107, or to extend the length of your cable
run, RG-8 can be used in place of RG-58.
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ꢂ
Shortening the Coaxial Cable (optional)
The coaxial cable from the LT-800 to the antenna
should be kept as short as possible. Listen has
included an extra LA-127 BNC connection to install
if the length can be shortened.
1
Cut Coaxial cable to desired length leaving
PL-259 connection.
2
Strip back cable jacket 0.6 inches (15 mm).
Strip back cable braid 0.25 inches (6.4 mm).
Strip back cable dielectric 0.15 inches (4 mm).
Slide outer ferrule onto cable.
3
4
5
6
Slide male contact on cable center conductor so that it
butts against dielectric.
Crimp male contact in place using crimp tool. Do not
7
overcrimp.
8
Fold braid back to allow the plug body assembly to slide
under braid.
9
Push plug body on cable until center pin is flush with end
of plug body.
10
Slide outer ferrule over the braid and up against
LA-127 Connection
PL259 Connection
connector body.
11
12
Crimp outer ferrule using crimp tool.
Check continuity of cable center conductor and sleeve to verify proper installation.
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ꢃ
Warranty
Warranty
Listen Technologies Corporation (Listen) warrants its transmitters and receivers (LT-82, LT-700, LT-800, LR-100,
LR-42, LR-44, LR-300, LR-400, LR-500, LR-600) to be free from defects in workmanship and material under normal
use and conditions for the useful lifetime of the product from date of purchase.
Listen warrants its Stationary IR Radiators (LA-140) to be free from defects in workmanship and material under
normal use and conditions for three years from the date of purchase.
Listen warrants its Noise Canceling Microphone (LA-270) to be free from defects in workmanship and material
under normal use and conditions for one year from date of purchase.
All other products and accessories are warranted for 90 days from date of purchase.
This warranty is only available to the original end purchaser of the product and cannot be transferred.
Warranty is only valid if warranty card has been returned within 90 days of purchase. This warranty is void if
damage occurred because of misuse or if the product has been repaired or modified by anyone other than
a factory authorized service technician. Warranty does not cover normal wear and tear on the product or
any other physical damage unless the damage was the result of a manufacturing defect. Listen is not liable
for consequential damages due to any failure of equipment to perform as intended. Listen shall bear no
responsibility or obligation with respect to the manner of use of any equipment sold by it. Listen specifically
disclaims and negates any warranty of merchantability or fitness of use of such equipment including, without
limitation, any warranty that the use of such equipment for any purpose will comply with applicable laws and
regulations. The terms of the warranty are governed by the laws of the state of Utah.
In the first ninety days after purchase, any defective product will be replaced with a new unit. After ninety
days, Listen will, at its own discretion either repair or replace transmitters and receivers with a new unit or a unit
of similar type and condition. Product that is not covered under warranty shall be repaired or replaced with a
unit of similar type and condition based on a flat fee. Contact Listen for details.
This limited warranty, prices and the specifications of products are subject to change without notice.
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ꢄ
Contacting Listen
Contacting Listen
If technical service is needed, please contact Listen. Pre-authorization is required before returning
Listen products. If products were damaged in shipment, please contact the carrier, then contact
Listen for replacement or repair requirements payable by the carrier.
Listen’s corporate headquarters are located in Salt Lake City, Utah U.S.A. and are open Monday
through Friday, 8am to 5pm Mountain Time.
14912 Heritagecrest Way
Salt Lake City, Utah 84065-4818
801.233.8992
North America
800.330.0891
801.233.8995
fax
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ꢅ
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Listen Technologies Corporation
1ꢁ912 Heritagecrest Way
Salt Lake City, Utah ꢅꢁ0ꢃꢂ-ꢁꢅ1ꢅ U.S.A.
ꢅ01.2ꢀꢀ.ꢅ992
North America
ꢅ00.ꢀꢀ0.0ꢅ91
ꢅ01.2ꢀꢀ.ꢅ99ꢂ
fax
www.listentech.com
Printed in the United States of America
®
© 200ꢃ Listen Technologies Corporation All Rights Reserved 200ꢃ 200ꢄ010ꢀ
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