Table of Contents
Advertisement
productmanual 11x17.qrk
10/11/99 2:43 PM
Page 8
LT-800 Stationary Transmitter Preparation
Preparing the LT-800 for Use
1
Remove the product from the shipping
container and plastic cover.
Inspect for physical
damage. See "Technical Service Contacts" (Page 4) if
damage has occurred.
2
For Rack Mounting:
If rack mounting the unit, install
the rack mount shelf according the instructions that come
with the shelf, then install the unit and shelf in the rack.
3
Plug in Wall Transformer
Plug the connector
on the wall transformer into the power connector on
the back panel. Use strain relief on far left side of rear
panel. Do not plug into power source yet. (Only use a
Listen supplied transformer.)
4
Connect Antenna:
Connect the supplied
antenna according the instructions that come with the
antenna. Only use an antenna supplied by Listen.
Connect external
Connect whip or
antenna here, or...
rubber ducky antenna
through cover here
8
LISTEN TECHNOLOGIES CORPORATION +1.435.647.0318 1.800.330.0891 Fax: +1.435.647.0316
Internet: www.listentech.com
All specifications are subject to change without notice.
5
Set the RF POWER:
Set the RF POWER switch for
FULL, 1/2 or 1/4. (Level is also indicated on the front
panel.) The amount of transmitted RF power that you will
need depends on your application. If you are operating
other transmitters in the same environment and receivers
can be used close to the antenna, it is best to have the
transmitter's output power at its lowest level to reduce
the possibility of interference.
6
Power Up
1
. Plug transformer into outlet
2
3
4
. Press to
. Select channel
. If desired, lock in
using UP and
selected channel by
turn power
DOWN buttons
pressing both UP and DOWN
ON
buttons simultaneously
Lock Into or Unlock A Channel
TO LOCK:
Press the LT-800's channel UP and DOWN buttons
simultaneously for three or more seconds until you see a
decimal dot light up next to the channel number.
To UNLOCK:
Press the channel UP and DOWN buttons
simultaneously for three or more seconds until you see the
decimal dot next to the channel number disappear.
TM
Listen Receivers: LR-500 and LR-400, Charging (cont.) & Programming
2.
Charging the Batteries (continued)
5. Plug a wall transformer into the side of the Listen receiver or
place receiver in a Listen Battery Recharging Tray.
For charging using a
transformer: with NiMH
batteries in unit, plug wall
transformer in CHARGING
connection and into wall
outlet (as shown).
3. Use the UP and DOWN keys to
Batteries will be fully charged when red LED shines solid red.
(LED and battery symbol will flash slowly while charging.)
6. Once the batteries are fully charged, the unit will stop charging
the batteries. Full-charge will be indicated when all the battery
symbol segments are illuminated and the LED near the volume
control is glowing steadily.
7. The unit can be operated while batteries are charging.
Operating the Receiver with a Wall Transformer
4. To adjust squelch, the padlock icon
1. The unit will operate normally when connected to a wall
transformer.
2. Batteries do not need to be installed in the unit operate from a
wall transformer.
LR-500 Receiver Programming
1. The LR-500 can be programmed to operate on a limited number of
channels. (The LR-400 cannot be programmed.) For applications
where users are required to select a channel (such as language
translation or classrooms), and you don't want them to have to go
5.
through all of the available channels, this feature is ideal. If all
channels where available, the user could have 57 channels to
select from.
LISTEN TECHNOLOGIES CORPORATION +1.435.647.0318 1.800.330.0891 Fax: +1.435.647.0316
Internet: www.listentech.com
All specifications subject to change without notice.
To enter PROGRAM mode, press
the UP and DOWN keys simultane-
ously until the PGM symbol is
displayed on the LCD display.
On each channel, check to see if
"L/O" is displayed; it means
channel is locked out from the user
select channels. As channels
are displayed, the L/O symbol on
the LCD display will be displayed
for those channels that are
locked out. When a channel is
To toggle
between
locked out, the channel is not
locked out
available to the user. To toggle
and not
between locked out and not
locked
locked out, press the SEEK
out, press
button.
the SEEK
button.
In PROGRAM mode on the LR-500,
dots indicate level of squelch
will appear after you program your
channels in PROGRAM mode. You
should still be in PROGRAM mode.
To NOT adjust squelch, don't press a
button for 4 seconds and the unit will
exit PROGRAM mode. To adjust
squelch, press SEEK to unlock
squelch (the padlock will disappear).
The squelch level will appear as a number of dots showing. No dots
means no squelch. The more dots displayed in this mode, the more
sensitive squelch will be. The factory default setting is four dots.
Press the UP button to rotate through the number of dots.
To exit PROGRAM mode,
don't press a key for 4 seconds.
TM
25
Advertisement
Table of Contents
