Listen Technologies LA-122 Universal Antenna Kit User manual

LA-122
USER MANUAL
Universal Antenna Kit
(72 and 216 MHz)
www.listentech.com
Dear Valued Customer,
Thank you for choosing Listen! We are dedicated to providing you
with high-quality products, and take pride in delivering outstanding
performance to ensure you are completely satisfied. We independently
certify each of our products to the highest quality standards and back
them with an industry-leading warranty. We are available to answer any
questions you might have during installation or in the operation of our
products. At Listen, it’s all about you, should you have any comments or
suggestions we’re here to listen.
Here’s how to reach us:
+1.801.233.8992 +1.800.330.0891 North America
+1.801.233.8995 fax
[email protected] www.listentech.com
Thank you and enjoy your listening experience!
Best regards,
The Listen Team
2
TABLE OF CONTENTS
4
Package Contents
5
Specifications
6
Note Before Starting Installation
9
Dipole Antenna Mounting Options
13
Monopole Antenna Mounting Options
16
Troubleshooting
16
Warranty
16
Contact Us
3
LA-122 Package Contents
PACKAGE CONTENTS
Contents
Use With
• Wall/Electrical Box
Mounting
Plate
LA-122
Contents
LT-800-072 Stationary Listen
Transmitter
Part
Number
Package Contents
Mounting Bracket
LT-800-216 Stationary
•• Wall/Electrical
Box Mounting Plate
LA-122Transmitter
Universal Remote Antenna
•• Mounting
Bracket
Antenna Module and 25 ft. (7.6 m) RG58
LT-803-072 Stationary 3-Channel FM
• Antenna
Module
ft. (7.6 m) RG58 coaxial cable
coaxial cable
with and
BNC25
Connectors
Transmitter (72 MHz)
with BNC Connectors
Telescoping antennas
•• Telescoping
antennas(2
(2for
forboth
both72
72 and 216 MHz)
Optional Accessories
and 216antennas
MHz)
• Flexible
(2 for both 72 and 216 MHz)
•• Ground
Plane and(2Shorting
Listen Part Number
LA-127 RG58 BNC Cable Connector
Flexible antennas
for bothPlate
72 and 216 MHz)
• Mounting Hardware:
LA-128
RG8
BNC Cable Connector
LA-122 Universal
Remote
Antenna
• Ground
Base andScrews
Shorting
Plateto mount to a single or
(4)
#6-32 Machine
- used
LA-112 RG58 Coaxial Cable
dual gang duplex box
LA-113 RG8 Low Loss Coaxial Cable
(4) #8-32 Machine Screws - used to mount to a square or
LA-390 RG8/50 Ohm Low Loss
hex junction or light box
Preassembled Cable
Mounting
Options
Mounting Hardware
(4) #8 Sheet Metal Screws - used to mount to metal or
LA-391 RG58/50 Ohm Preassembled
• Wall Mount (to your electrical box)
wood, or for use with dry anchors
Cable
(4) #6-32 Machine Screws - used to mount
(4) Dry Anchors - used to mount to drywall, concrete, plas• Direct Wall Mount
to a single or dual gang duplex box
ter, brick, or masonry
• Ceiling Mount
(2)
Kep
Nuts (#10-32)
one
FibertoWasher
- used
(4)Hex
#8-32
Machine
Screwsand
- used
to(1)
mount
a
Mounting Options
for mounting flexible antennas to the Antenna Module,
• In-Wall or In-Ceiling Mount
square or hex junction or light box
and for grounding purposes
• Mast Mount •Wall Mount (to your electrical box)
(4) #8 Sheet Metal Screws - used to mount to
Direct Wall Mount
metal or wood, or for use with dry anchors
•Ceiling Mount
Use With:
In-Wall or In-Ceiling Mount
(4) Dry Anchors - used to mount to drywall,
Mast
Mount
LT-800-072 Stationary Transmitter
concrete,
plaster,
brick,
or
masonry
LT-800-216 Stationary Transmitter
LT-803-072 Stationary 3-Channel FM Transmitter (72 MHz)
(2) Hex Kep Nuts (#10-32) and one (1) Fiber
LR-100-072 Stationary Receiver/Power Amplifier
Washer - used for mounting flexible antennas to
LR-100-216 Stationary Receiver/Power Amplifier
the
AntennaWireless
Module,FM
and
for grounding purposes
LR-600-072
Receiver/Speaker
(72MHz)
LR-600-216 Wireless FM Receiver/Speaker (216MHz)
Mounting Bracket
Grounding Base
Wall/Electrical Box
Mounting Plate
Shorting Plate
Antenna Module
Telescoping Antennas 216 MHz
Telescoping Antennas 72 MHz
Machine Screw
4
Dry Anchors
Tapping Screws
Hex Kep Nut
Fiber Washer
Flexible Antennas 72 MHz
Flexible Antennas 216 MHz
3
SPECIFICATIONS
Architectural Specifications
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 includes the
necessary hardware to mount the antenna on a single or dual electrical box, directly on a wall, on a ceiling
electrical box or on a flat surface. The antenna shall have a BNC connector and the kit shall come with
7.6 m (25 ft.) of RG58 coax with BNC connectors. The kit shall include rigid and flexible antenna radials.
The Listen LA-122 Universal Antenna Kit is specified.
Specification
SPECIFICATION
LA-122
Center Frequencies
73.50 MHz and 216.50 MHz
Antenna Types
Monopole and Dipole
Antenna Segment Lengths
(same for both rigid and flexible antennas) 72 MHz:
1.0 m (39.25 in.); 216 MHz: 31.1 cm (12.25 in.)
Antenna Gain
72 MHz: 2.03 m (79.75 in.); 216 MHz: 65.4 cm (25.75 in.)
Dipole Vertical Clearance
Unity
Connector
Standard BNC
Coax Provided
7.6 m (25 ft.) RG58 with BNC connectors
Mounting Options
Wall mount, dual and single electrical box, ceiling electrical box,
horizontal surface mount (such as on top of a rack), ceiling/
inverse mounting, flexible mounting in-wall or in-ceiling and
mast or conduit mount
Mounting Hardware
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)
Mounting Bracket Dimensions
11 cm (4.5 in.) wide x 18 cm (7.0 in.) deep x 6.4 cm (2.5 in.) high
Mounting Plate Dimensions
11.4 cm (4.48 in.) x 11.6 cm (4.55 in.)
Shipping Box Dimensions
70 mm (2.76 in.) x 415 mm (16.3 in.) x 435 mm (17.1 in.)
Weight
2 kg (4.4 lbs.)
Specifications are subject to change without notification
5
IMPORTANT TO NOTE BEFORE STARTING INSTALLATION
Coaxial Cable
If you plan to use your own coaxial cable instead of the provided cable, you must use cable and
connectors rated at 50 ohms. Although cable used for cable TV installations looks similar to this cable,
it won’t work with your Listen system.
If you need to run cable over a greater length than 15.24 m (50 ft.) for 216 MHz applications or greater
than 30.48 m (100 ft.) 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 30.48 m (100 ft.) of cable and at 216 MHz, there is a loss of 5 dB per 30.48 m
(100 ft.) of cable. (A 3dB loss means half of your power has been lost.) However, it is better to suffer
coaxial power loss than to try to shoot your signal through obstacles! Obstacles, especially metal, can
create drop-outs or reflections of your signal that will result in poor listening conditions.
Before Starting Assembly of Your Antenna
Please carefully compare the contents of your kit with the list found on page 2. If any items are missing
or damaged, please contact Listen Technologies. If items were damaged in shipment, contact your
carrier immediately and retain all packaging for inspection by your carrier. Listen is not responsible for
shipping damage.
Antenna Orientation
The antenna’s pattern is hemispherical, meaning that it has an “active” side and a ground side. The active
side directs the signal toward the receivers, so it is essential that the active side be oriented toward
the area where the receivers will be used. The Antenna Module’s ground side has the word “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. It
may be necessary to move the ground side of the antenna mount around in order to accomplish this.
To move the ground side of the module, simply remove the four nuts, reverse the module so that the
ground side is facing the bracket, then re-attach the nuts. Be careful to not detach any wires if the module
opens while it is not secured to the bracket.
6
down. If you are mounting a monopole antenna in a ceiling or high on a wall, the ground sid
should face UP. It may be necessary to move the ground side of the antenna mount around
order to accomplish this.
To move the ground side of the module, simply remove the four nuts, reverse the module so t
ground side is facing the bracket, then re-attach the nuts. Be careful to not detach any wires
module opens while it is not secured to the bracket.
Scenario11- -Antenna
Antennais is
Scenario
mountedlow
lowininthe
thefacility
facility
mounted
This is the area of coverage
Ground side of antenna
Setup Instructions
Scenario
Antennaisis mounted high
Scenario 22 -- Antenna
in
the facility
than 25 ft.)
mounted
high(greater
in the facility
Ground side of antenna
This is the area of coverage
DiagramA.
A. Antenna
coverage
patterns.
In ScenarioIn
1, Scenario
the antenna1,
is mounted
low in the
facility. The low in the facility. The
Diagram
Antenna
coverage
patterns.
the antenna
is mounted
GROUND
side of
of the
(marked
on the module)
face down.
In Scenario
2, the antenna
is
GROUND
side
theantenna
antenna
(marked
on theshould
module)
should
face down.
In Scenario
2, the antenna is
mounted high in the facility. The GROUND side of the antenna should face up.
mounted high in the facility. The GROUND side of the antenna should face up.
6
7
IMPORTANT TO NOTE BEFORE STARTING INSTALLATION (CONTINUED)
Selecting an Antenna Location
The location and configuration of your antenna mount will determine the quality of your signal; therefore,
there are some important factors to consider.
• Where will the receivers be located? Ideally, the antenna will be centrally positioned above that area.
• Where will the transmitter or stationary receiver/power amplifier be located? We recommend that it be
located no more than 7.6 meters (25 ft.) from the antenna.
• Are there any metal obstructions in the area? Ideally, there will be no metal between the antenna and
the receivers. Also, try to avoid mounting the antenna in a location where nearby metal would be in
parallel with the antenna — this degrades the signal.
• Will the antenna be mounted outdoors? Antennas work well outdoors, but if possible, try to place the
antenna where it will not receive too much exposure to moisture or dirt. Covering exposed connections
with petroleum jelly or silicone gel will extend the life of the antenna.
Choosing the Type of Antenna to Use
Several types of antennas are included in this kit. You will only use one of them. How do you select the
best antenna?
First, what is your operating frequency — 72 MHz or 216 MHz? This eliminates half of the antennas since
you can only use an antenna that will work for your frequency range.
Note: Remember, the LONGER antennas work on the lower frequency of 72 MHz and the SHORTER
antennas work at 216 MHz.
Next, do you have any space restrictions? The rigid dipole antenna (the one with the two extendable
arms) provides the best signal, but only if you can fully extend the sections of the antenna. If you can’t
fully extend the rigid dipole, you will need to go with either the flexible dipole or the monopole antenna.
We recommend using a dipole antenna whenever possible.
If you need to mount your antenna on top of an equipment rack, you will need to use the
monopole antenna.
For mounting in a ceiling or wall, or taking up the least amount of space along an outside edge of a wall,
the flexible dipole antenna is a good choice. Remember, though, that you need to extend the sections of
this flexible antenna as far apart from each other as possible.
8
Dipole Antenna Mounting Options
Dipole Antenna Mounting Options
DIPOLE ANTENNA MOUNTING OPTIONS
Mount to an Electrical Box in a Wall
Mount to an Electrical Box inSee
a Wall B at right
MountDiagram
to an Electrical Box in a Wall
See Diagram B at right
The antenna may be mounted to a single
Diagram
B at right
orSee
dual
gang duplex
box, or to a square or
hexagonal
box.gang duplex box,
The antenna may be mounted to
a singlejunction
or dual
The antenna may be mounted to a single
or dual
gang
box,
or totoathe
square or
or to a square or hexagonal junction
box.
Attach
the
kit’s duplex
Mounting
Plate
hexagonal
box. right). The cover
electrical
boxjunction
(see photo,
plate
a number of
holes
and photo,
slots to
Attach the kit’s Mounting Plate to
thehaselectrical
box
(see
Attach the kit’s
Mounting
to the
accomodate
a wide
varietyPlate
of electrical
electrical
box
(see
photo,
right).
The cover
right). The cover plate has a number
of holes
slots toBracket
boxes. Next,
secureand
the Mounting
has aand
number
of holes
slots to
toplate
the plate
connect
yourand
antenna
as
accomodate a wide variety of electrical
boxes.
Next,
secure
the
accomodate
a wide
variety
of electrical
noted
in the following
pages.
boxes. Next, secure the Mounting Bracket
Mounting Bracket to the plate and
connect your antenna as noted
to the plate and connect your antenna as
noted in the following pages.
in the following pages.
Dipole mounted
on electrical box
Mount Directly to a Wall
Dipole mounted
on electrical box
Diagram B. The Electrical Box Mount
uses the Mounting Plate and Mounting
Bracket as
shown above.
Monopole
mounted
Diagram
B. The
Electrical Box Mount
directly
to wallPlate and Mounting
uses
the Mounting
Bracket as
shown above.
Monopole
mounted
directly to wall
Mount
Directly
a Wall
See Diagram
C atto
right
Remote Bas
Ground Plan
Setup Instructions
Setup Instructions
We recommend using the Mounting Plate
Diagram
C at right
toSee
make
for a sturdier
installation, however,
it is not necessary to do so. If you use the
Mount Directly to a Wall
We
recommend
using
the Mounting
Plate
Mounting Plate, you will need
to provide
to make
forclearance
a sturdier gaps
installation,
however,
two
shallow
in the wall
to
it is not
to do so. in
If you
use the
See Diagram C at right
allow
for necessary
the two protrusions
the Mounting
Mounting
Plate,
you
will
need
to
provide
Plate.
two shallow
wall to
We recommend using the Mounting
Plateclearance
to makegaps
forinathe
sturdier
allow
for the two
protrusions
in thethe
Mounting
Use
appropriate
anchors
to secure
Plate. Plate
installation, however, it is not necessary
to to
dothe
so.
If (hollow
you use
Mounting
wall
wall the
are provided
in this kit),
then secure
Mounting Plate, you will need toanchors
provide
two
shallow
clearance
Use
appropriate
anchors
toplate.
secure
the are
the
Mounting
Bracket
to the
If you
Mounting
Plate
to thein
wall
(hollow
using
the
Mounting
Plate,
use wall
gaps in the wall to allow for the not
two
protrusions
the
anchors arewall
provided
in to
thismount
kit), then
appropriate
anchors
the secure
the Mounting
Bracket
to to
thethe
plate.
Mounting Plate.
Mounting
Bracket
directly
wall.If you are
not using the Mounting Plate, use
appropriate
wall anchors
to mount
the
Use appropriate anchors to secure
the Mounting
Plate
to the
Mounting Bracket directly to the wall.
wall (hollow wall anchors are provided in this kit), then secure the
Mounting Bracket to the plate. If you are not using the Mounting
Plate, use appropriate wall anchors to mount the Mounting Bracket
directly to the wall.
8
Remote B
Ground Pl
Flexible dipole
Diagram C. A direct Wall Mount should use the
dipole
Mounting Plate for added strength, but it isFlexible
not
required for proper antenna operation.
Diagram C. A direct Wall Mount should use the
Mounting Plate for added strength, but it is not
required for proper antenna operation.
8
9
Dipole
Antenna
Mounting
DIPOLE
ANTENNA
MOUNTING
OPTIONS Options
(CONTINUED)
Mounting Inside a Wall or Ceiling
See Diagrams D and E
Mounting Inside a Wall or Ceiling
The antenna may be hidden inside a wall or ceiling. IMPORTANT: Do not install the antenna inside a
metal wall orSee
ceiling,
as thisDwould
Diagrams
and E obstruct the signal.
You will use aThe
flexible
dipole
(the
Select the
wires
your inside a
antenna
may
befloppy
hiddenwires)
insidein
a this
wall configuration.
or ceiling. IMPORTANT:
Docorrect
not install
the for
antenna
configurationmetal
(72 MHz
MHz).
Connect
antenna
to the ground side of the Antenna
wallor
or 216
ceiling,
as this
wouldone
obstruct
the wire
signal.
Module using one of the Hex Kep nuts provided. Connect the other wire to the active side using the
You
willas
use
a flexible
dipole (the
floppy
in this
configuration.
theyou
correct
wires for your
other Hex Kep
nut,
noted
in Diagram
D below.
If wires)
you are
using
a Mounting Select
Bracket,
will need
configuration (72 MHz or 216 MHz). Connect one antenna wire to the ground side of the Antenna
to install the provided fiber washer between the antenna and mounting bracket.
Module using one of the Hex Kep nuts provided. Connect the other wire to the active side using the
other Hexbracket
Kep nut,
Diagram
D below.
If you
aregrounded)
using a Mounting
you will
Secure the mounting
toas
a noted
beam, in
making
sure
the active
(non
side of Bracket,
the antenna
is need to
install
the
provided
washer between
the antenna
and mounting
bracket.
directed toward
the
area
wherefiber
the receivers
will be located
(see Diagram
E below).
Then, secure the
ends of the antenna to beams using wood screws or the provided sheet metal screws. Try to make
Secure the mounting bracket to a beam, making sure the active (non grounded) side of the antenna
the wires as straight
as possible, and make sure they extend in opposite directions.
is directed toward the area where the receivers will be located (see Diagram E below). Then, secure
the ends of the antenna to beams using wood screws or the provided sheet metal screws. Try to
make the wires as straight as possible, and make sure they extend in opposite directions.
End of antenna is attached to beam in ceiling or wall
End of antenna is attached to beam in ceiling or wall
Hex Kep Nut
Flexible Dipole
in Ceiling
Active Side
Active Side
Hex Kep Nut
Coaxial Cable runs to your transmitter
or stationary receiver
Fiber Washer
(if using Mounting Bracket)
Fiber Washer
(if using Mounting Bracket)
Ground Side
Diagram E.E.AAflexible
can
be mounted
in your
Diagram
flexibledipole
dipole
can
be mounted
in
Mounting Bracket
ceiling
or wallor
aswall
shown
here. Although
the(optional)
Mounting
your ceiling
as shown
here. Although
the
Mounting
Bracket
not shown
here,
it would
be
Bracket
is not
shownishere,
it would
be used
to secure
used to secure the Antenna Module to a beam.
Ground Sidethe Antenna Module to a beam.
Setup Instructions
Mounting Bracket
(optional)
Hex Kep Nut
Hex Kep Nut
Diagram
D. Flexible
Dipole
connectionto the
Diagram
D. Flexible
Dipole
connection
to Antenna
the Antenna
Module.
Module.
10
9
Mounting to a Mast of Conduit
DIPOLE
The antenna may be mounted to a mast,
pole or section of vertical conduit. A mast
made of non-conductive material works
best; however, if you must use a metal
mast, be sure to
orient the antenna
mount
ANTENNA
MOUNTING
OPTIONS
(CONTINUED)
so the mast is not between the antenna
and the designated receiving area.
Mounting to a Mast of Conduit
Plate to
is not
required,
The antenna The
mayMounting
be mounted
a mast,
polebut
or will
section of vertical conduit. A mast made of
provide a stronger mount for the antenna.
non-conductive
material
works best; available
however, if you must use a metal mast, be sure to orient
Secure
two commercially
the antenna conduit
mount so
the mast
is not between
the
clamps
(not included
in this kit)
to antenna and the designated receiving area.
the mast, then attach the Mounting Plate
The Mounting
Plate is not required, but will provide a stronger mount for the antenna. Secure
to the clamps and connect the Mounting
two commercially
available
conduit Plate,
clamps
included
in this kit) to the mast, then attach the
Bracket
to the Mounting
as(not
shown
in
Mounting Plate
the clamps
the to
photo
at right. and connect the Mounting Bracket to the Mounting Plate,
Dipole
Antenna Mounting Options
as shown in the photo
below.
Mounting to a Mast of Conduit
The antenna may be mounted to a mast,
pole or section of vertical conduit. A mast
made of non-conductive material works
best; however, if you must use a metal
mast, be sure to orient the antenna mount
so the mast is not between the antenna
and the designated receiving area.
Setup Instructions
The Mounting Plate is not required, but will
provide a stronger mount for the antenna.
Secure two commercially available
conduit clamps (not included in this kit) to
the mast, then attach the Mounting Plate
to the clamps and connect the Mounting
Bracket to the Mounting Plate, as shown in
the photo at right.
Installation of a dipole antenna on a vertical
mast with the Mounting Plate. Note that the
antenna is installed at the TOP of the mast
Setup Instructions
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. If mounted low, the active element will be at the top of
the installation. Make sure the antenna is mounted in such a way
that the mast will not interfere with the signal.
Diagram
F. Mast
without
Diagram
F. Mount
Mast Mount
the Mounting
Plate. Plate.
Mast
Mount
without
the
Mounting
With Bracket
Installation of a dipole antenna on a vertical
Installation
a dipole
antenna
onNote
a vertical
mastof
with
the Mounting
Plate.
that themast
antenna is installed
at thethat
TOP of
the
mast
with the Mounting
Plate. Note
the
antenna
is
installed at the TOP of the mast.
10
IMPORTANT (see Diagram F at left): When installing an antenna
on a metal
make
the mast
notsure
extend
IMPORTANT (see Diagram F at left): When installing
an mast,
antenna
onsure
a metal
mast,does
make
the above
mast
the antenna module. If you are mounting the antenna in a high
does not extend above the antenna module.location
If you are
mounting
the antenna
in aelement
high location
(such
as a stadium),
the active
should(such
be at the
as a stadium), the active element should be bottom.
at the bottom.
If mounted
the
active element
If mounted
low, the low,
active
element
will be atwill
the be
top of
installation.
Make sure
the a
antenna
is mounted
such
at the top of the installation. Make sure the the
antenna
is mounted
in such
way that
the mastinwill
nota way
that the mast will not interfere with the signal.
interfere with the signal.
Diagram F. Mast Mount without
the Mounting
Plate.
Mast Mount
With Bracket
10
11
Dipole Antenna Mounting Options
Connecting
the Dipole
Antenna
DIPOLE ANTENNA
MOUNTING
OPTIONS (CONTINUED)
You have two choices of antenna with the
dipole option:
the rigid
dipole, which has
Connecting
the Dipole
Antenna
the two extendable arms, or the flexible
You have
twowhich
choices
antenna
dipole option: the rigid dipole, which has the two extendable
dipole,
hasof
the
“floppy”with
wiresthe
with
arms, or
the flexible
which
the flexible wires with securing rings at the ends. Rigid dipole pieces
securing
rings atdipole,
the ends.
Rigidhas
dipole
pieces
screw
onto the at
connectors
at the
screw onto
the
connectors
the top and
bottom of the Antenna Module. Flexible dipole wires are secured
top and bottom of the Antenna Module.
using Hex
Kep nuts and a fiber washer as indicated on page 7.
Flexible dipole wires are secured using Hex
Kep nuts
and
a fiber room
washerto
asfully
indicated
If you don’t
have
enough
extend the ground arm of a rigid dipole, you can use half of a rigid
on
page
7.
dipole for the active side and half of a flexible dipole for the ground side. Although the dipole works best
when the
wires
are
fully
extended
If you
don’t
have
enough
roomstraight,
to fully satisfactory operation can still be obtained when you slightly
bend the
ground
wire
(not
the
active
one!) to fit around a ceiling or floor corner.
extend the ground arm of a rigid dipole,
you can use half of a rigid dipole for the
Connect
the coaxial cable (either the cable provided in the kit or your own) to the Antenna Module’s BNC
active side and half of a flexible dipole
connector.
Connect
endthe
to the
LT-800 transmitter or the LR-100 Receiver/Power Amplifier,
for the
ground the
side.other
Although
dipole
workson
best
whendevice
the wires
fully
depending
which
youare
are
using.
extended straight, satisfactory operation
If you supply
own cable,
you
50 ohm coaxial cable and connectors. Do not use cable
can stillyour
be obtained
when
youMUST
slightlyuse
bend
made for
cable TV
installations;
is rated
the ground
wire
(not the activeitone!)
to fitat 75 ohms and will not work in this application.
around a ceiling or floor corner.
Rigid dipole sections screw onto the opposite sides
of the antenna module, and are then fully extended.
the coaxial cable (either the
ng OptionsConnect
cable provided in the kit or your own) to
the Antenna Module’s BNC connector.
Connect the other end to the LT-800
transmitter or the LR-100 Receiver/Power
Amplifier, depending on which device you
are using.
the
as
e
th
he
e.
Hex
ed
Setup Instructions
If you supply your own cable, you MUST
use 50 ohm coaxial cable and connectors.
Do not use cable made for cable TV
installations; it is rated at 75 ohms and will
not work in this application.
e,
e
e
on
bend
o fit
Using half of a flexible dipole for grounding a rigid
dipole. ThisUsing
is a good
choice
when youdipole
don’t have
half
of a flexible
for
room to fully extend the ground side of the dipole.
Rigid dipole sections screw onto
Rigid dipole sections screw onto the opposite sides
themodule,
opposite
of fully
theextended.
antenna
of the antenna
andsides
are then
module, and are then fully extended.
o
grounding a rigid dipole. This is a
good choice when you don’t have
room to fully extend the ground11
side of the dipole.
er
you
will
12
Setup Instruction
T
tors.
Monopole Antenna Mounting Options
MONOPOLE ANTENNA MOUNTING OPTIONS
Mount to a Grounded Electrical Box, Ceiling or
Mount to a Grounded Electrical Box
A monopole (single element) antenna may
A monopole
(single element)
antenna
be mounted
to a grounded
lightmay
boxbe
or mounted to a grounded light box or junction box in a
box in
a ceiling
or floor
using
floor using
the
Mounting
Plate
andthe
Mounting Bracket.
Hex Kep Nut
ews from Antennaceiling
Module orjunction
Monopole Antenna Mounting Options
Mounting Plate and Mounting Bracket.
Nuts from ground side
BEFORE STARTING, reverse the Antenna Module on the Mounting
Bracket, then install the Hex Kep
of Antenna Module
nut on the
ground
post
(see
Diagram
G
below).
The
combination
of
the Mounting Bracket, nut and
BEFORE STARTING, reverse the Antenna
Moduleelectrical
on the Mounting
Bracket,
then
install ground for the antenna.
your grounded
box provides
the
required
ounting Options
Mount to a Grounded Electrical Box, Ceiling or
the Hex Kep nut on the ground post (see
Ground
of
If you doDiagram
not haveGaccess
to a
grounded
box,of
you
tosideattach
a flexible antenna element to the
at right).
The
combination
thewill need
Antenna Module
ground side
of theBracket,
Antenna
Module
(see
Diagram
A monopole
(single
element)
antenna
mayI). Be sure to use the correct length element (longer
Mounting
nut
and your
grounded
be
mounted
to one
a grounded
light
box
or
electrical
box provides
the216
required
ground
wire for 72
MHz,
shorter
for
MHz).
Connect
the wire underneath the shorting nut and run it
junction
box
in
a
ceiling
or
floor
using
the
for
the
antenna.
Hex Kep Nut
Screws
from
Antenna
Module
up or
into the ceiling.
ox, Ceiling
Ground side of
Antenna Module
a may
or
the
t.
a
n install
see
e
n of the
nded
round
Mounting Plate and Mounting Bracket.
If you do not have access to a grounded box,
BEFORE
STARTING,
reverse
the Antenna
you
will need
to attach
a flexible
antenna
Hex Kep Nut
Moduletoon
the
Mounting
then install
element
the
ground
side Bracket,
of the Antenna
Hex Kep Nut
the Hex
Kep
nut on the
ground
post
Module
(see
Diagram
I). Be
sure to
use(see
the
Nuts from ground side
Diagram
G atelement
right). The
combination
of the
correct
length
(longer
wire for 72
of Antenna
Module
Mounting
nut MHz).
and your
grounded
MHz,
shorterBracket,
one for 216
Connect
the
electrical
box provides
the required
ground
wire
underneath
the shorting
nut and run
for into
the antenna.
it up
the ceiling.
Ground side ofGround Plane
Antenna Module
Hex Kep Nut
Nuts from ground side
of Antenna Module
Ground side of
Antenna Module
Ground side of
Antenna Module
Nuts from ground side
of Antenna Module
Ground side of
Antenna Module
Shorting side
Plate
Nuts from ground
of Antenna
Module
Nuts from
ground side
of Antenna Module
Hex Kep Nut
Diagram G. Reversing the Antenna
Module on the Mounting Bracket
Ground side ofGround Plane
Antenna Module
Hex Kep Nut
Screws from Antenna Module
Nuts from ground side
of Antenna Module
Ground side of
Antenna Module
Ground side of
Antenna Module
Hex Kep Nut
Screws from Antenna Module
If you do not have access to a grounded box,
you will need to attach a flexible 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). Connect the
wire
underneath
the shorting
nut and run
Diagram
G. Reversing
Reversing
the
Diagram
G.
theAntenna
antenna
it upModule
into the
ceiling.
onthe
the Mounting
Mounting Bracket
Module on
Bracket.
Hex Kep Nut
Screws from Antenna Module
Ground Plane
Shorting Plate
Nuts from ground side
of Antenna Module
Kep Nut
Flexible antenna isHex
used
to provide ground
Diagram G. Reversing the Antenna
Module on the Mounting Bracket
Shorting Plate
ded box,
enna
enna
e the
or 72
ct the
run
Nuts from ground side
of Antenna Module
Setup Instructions
Hex Kep Nut
Flexible antenna is used
to provide ground
exible antenna is used
o provide ground
Setup Instructions
Flexible antenna is used
to provide ground
Flexible antenna is used
to provide ground
Diagram H. Ceiling mounted
monopole with a grounded box.
12
Ceiling Mount to Electrical
Box.
Invert for floor mount.
(shortening nut required)
Diagram H. Ceiling mounted
monopole with a grounded box.
12
Ceiling Mount to Electrical
Box.
Diagram I.Invert
Ceiling
mounted
monopole with a
for
floor mount.
flexible antenna attached to provide a ground.
(shortening nut required)
This installation creates a dipole antenna, which
Diagram I. Ceiling mounted monopole with a
flexible antenna attached to provide a ground.
This installation creates a dipole antenna, which
has better performance than a monopole. The
Shorting Plate is not used in this configuration.
Diagram I. Ceiling mounted monopole with a
flexible antenna attached to provide a ground.
This installation creates a dipole antenna, which
has better performance than a monopole. The
Shorting Plate is not used in this configuration.
13
Monopole Antenna Mounting Options
MONOPOLE ANTENNA MOUNTING OPTIONS (CONTINUED)
Mount to a Metal Surface Using the Ground Plane and Shorting Plate
Mount to a Metal Surface Using the Ground Base and Shorting Plate
See Diagram J
See Diagram J
It is often convenient
place an
It is often convenient
to place antoantenna
onantenna
top of a metal equipment rack. In order for the antenna
on top of a metal equipment rack. In order
to function properly,
it
must
be
secured
to
the
rack using the Grounding Base and
for the antenna to function properly, equipment
it must
Screws from Antenna Module
Shorting Plate.
be secured to the equipment rack using the
Ground Plane
Grounding Plate and Grounding Base.
The Mounting
Bracket is not used in this configuration. Remove the four nuts and screws from the
Antenna Module
and carefully
remove
it from
the bracket. With a lockwasher still over each screw,
The Mounting
Bracket
is not used
in this
put the screws
through the
Grounding
Base.
configuration.
Remove
the four
nutsMake
and sure the ground side of the Antenna Module (as
side of
from the
and the GroundingGround
indicated onscrews
the module)
isAntenna
orientedModule
AWAY from
Base.
Then, slide the Shorting Plate
Antenna Module
carefully
remove
it
from
the
bracket.
With
over the ground side (bottom) of the module. Replace the four nuts on the bottom of the assembly.
a lockwasher still over each screw, put the
Then, place a Hex Kep nut on the center ground post and tighten.
screws through the Ground Plane. Make
Shorting Plate
sure the ground
of the
Antenna
Secure the Grounding
Baseside
to your
metal
rack using sheet metal screws.
Module (as indicated on the module) is
Attach the Options
proper
Monopole
antenna
elementPlane.
to the Antenna Module. Systems on 72 MHz will use
a Mounting
oriented
AWAY from
the Grounding
Nuts from ground side
of Antenna Module
Hex Kep Nut
the LONGERThen,
antenna;
systems
on Plate
216 MHz
the SHORTER one.
slide the
Shorting
over will
the use
ground
side (bottom) of the module. Replace the four
Diagram
J. A reversed
Antenna Module
Connect thenuts
supplied
coaxial cable between the Antenna Module and
the stationary
transmitter
or
on the bottom of the assembly. Then,
with Ground Plane and Shorting Plate
receiver. If you
use
your
own
coaxial
cable,
be
sure
to
use
cable
and
connectors
rated
at
50
ohms.
place a Hex Kep nut on the center ground
tighten. Plate
the Ground Planepost
andand
Shorting
Secure the Ground Plane to your metal rack
using sheet metal screws.
ntenna
In order
y, it must
using the
ase.
Hex Kep Nut
Nuts from ground side
of Antenna Module
Connect the supplied coaxial cable between
the Antenna Module and the stationary
transmitter
or receiver. If you use your own
Ground side
of
Antenna Module
coaxial cable, be sure to use cable and
connectors rated at 50 ohms.
Setup Instructions
this
s and
nd
t. With
put the
Make
a
le) is
g Plane.
he ground
ce the four
y. Then,
ground
Attach the proper Monopole antenna
element to the Antenna Module. Systems on
Screws
from
Antenna
Module
72 MHz will
use
the
LONGER
antenna; systems
Ground Plane
on 216 MHz will use the SHORTER one.
Ground side of
FlexibleAntenna
antenna
is used
Module
to provide ground
Shorting Plate
Nuts from ground side
of Antenna Module
Hex Kep Nut
Grounding
Base
Ground Plane
Shorting
ShortingPlate
Plate
Diagram
AntennaModule
Module
Diagram J.
J. A
A reversed
reversed Antenna
with
Ground Plane
Plate
with
Grounding
Baseand
andShorting
Shorting
Plate.
Sheet metal
Sheet
Metal Screws
screws
Metal Equipment Rack
Hex Kep Nut
metal rack
Diagram
J. A K.
reversed
Antenna
Module
Diagram
Mounting
a Monopole
with Ground
and
Shorting Plate.
on Plane
a metal
surface.
nna
ystems on
a; systems
e.
14
Flexible antenna is used
to provide ground
Setup Instructions
e between
onary
our own
e and
13
MONOPOLE ANTENNA MOUNTING OPTIONS (CONTINUED)
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.
Monopole Antenna Mounting Options
Mounting
MonopoleAntenna
Antenna to
SurfaceCeiling
Mounting
a aMonopole
to aa Non-Conductive
Metal Beam or Metal
See Diagram L
See Diagram K
Follow the instructions for mounting to a metal equipment rack, however, there are two
Follow the
instructions for mounting to a
additional
steps:
metal equipment rack, orienting the
antenna downward rather than upward.
Connect a length of flexible antenna (appropriate to the frequency you are using) on the
1 ground
Mounting
a Monopole
Antenna
a
post of the
antennato
module
under the Hex Kep nut. You will NOT use the shorting
plate
in
this
configuration.
Non-Conductive Surface
See Diagram L
Drill a hole in the non-conductive surface and run the flexible antenna through the hole.
2FollowThis
theantenna
instructions
forprovide
mounting
to a
metal for your antenna since the non-conductive surface
will
the
ground
equipment rack, however, there are two
cannot supply a ground.
additional steps:
1
Connect a length of flexible antenna
Mounting Options
If you are
mounting
monopoleyou
upside
(appropriate
to the
the frequency
are down on a ceiling, run the flexible length inside the ceiling
using) it
onout
the as
ground
of the antenna
and stretch
far aspost
possible
from the monopole antenna element. Secure the antenna
module under the Hex Kep nut. You will
through
the connection lug at the end of the wire.
Diagram K. Inverse Mounting
NOT use the shorting plate in this
configuration.
na to a Metal Beam or Metal Ceiling
ng to a
the
upward.
na to a
2
of a monopole
Drill a hole in the non-conductive surface
and run the flexible antenna through the
hole. This antenna will provide the ground
for your antenna since the non-conductive
surface cannot supply a ground.
If you are mounting the monopole
upside down on a ceiling, run the flexible
length inside the ceiling and stretch it out as
far as possible from the monopole antenna
element. Secure the antenna through the
connection lug at the end of the wire.
ng to a metal
are two
ntenna
you are
he antenna
t. You will
his
ive surface
hrough the
the ground
n-conductive
nd.
14
e
Diagram
Inverse Mounting
Diagram
K.K.Inverse
Mounting
monopole
ofofa amonopole.
Hole drilled
in surface
Flexible antenna used
as ground
Diagram
L. Mounting
onaanon-conductive
non-conductive
Diagram
L. Mountingaamonopole
monopole on
surface.
Use Use
of the
flexible
wire
whichis is a
surface.
of the
flexible
wirecreates
creates a
a dipole,
dipole, which
a better
antenna
than
themonopole.
monopole.
better
antenna
than
the
15
TROUBLESHOOTING
I’m not hearing anything in my receiver.
Make sure the receiver’s batteries aren’t dead, that it is turned on, set to the right channel, and the
volume has been turned up.
Make sure your transmitter or stationary receiver has been powered up and set to the right channel,
and the desired audio has been applied.
Make sure the coaxial cable has been tightly attached to both the antenna and the transmitter/
stationary receiver.
Make sure you have used 50 ohm coaxial cable.
Make sure the antenna element(s) has been securely attached to the Antenna Module.
I’m getting a signal, but it isn’t very strong.
Make sure you are using the correct antenna element(s) for your operating band
(72 MHz or 216 MHz). Antennas for 72 MHz are longer than those used for 216 MHz.
If you are using a dipole antenna, make sure both elements are securely attached to the Antenna
Module and that they have been fully extended in opposite directions.
If you are using a monopole antenna, make sure it has been grounded with either the grounding
base or a flexible antenna attached to the grounding post on the Antenna Module.
Make sure the active element of the antenna is directed toward the area where the receivers are
being used and that the ground side is directed away from the receive area.
Make sure the antenna has been placed in an area free of metal obstructions.
Check the operating power of your transmitter — there are three settings, ¼, ½ and full power.
Increase the power if it’s low.
My signal is strong but it is distorted.
Make sure your transmitter or stationary receiver is on the same channel as the receivers.
Make sure you are not too close to the antenna.
Lower the level of the audio signal being fed into the transmitter.
If you are still having problems after checking the above items, call
+1.801.233.8992, toll-free 1.800.330.0891, or email [email protected].
WARRANTY
Please visit www.listentech.com/support/warranty/ for warranty and service information.
LISTEN TECHNOLOGIES 14912 Heritage Crest Way, Bluffdale, Utah 84065-4818 USA
Phone: +1.801.233.8992 Toll-Free: 1.800.330.0891 www.listentech.com
Copyright © 1998 - 2020 Listen Technologies Corporation. All rights reserved.
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