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Listen’s FM Receivers
Look & Listen™Display –
at-a-glance verification of
channel selection, battery level,
and RF signal strength
ON/OFF and
volume control
To find a channel depress
“seek”, or to lock the
channel, hold button
down for 5 seconds
(prevents users from
changing channels)
Awesome!
LR-500 Programmable Display Receiver
Earphone plugs in
here and can be
securely fastened
(accepts mono or
stereo jacks)
Select channel
using up and
down buttons;
verify selection
on the LCD
Denotes 72
or 216MHz
receiver
The LR-500
! Allows programming so users can only tune to certain channels
! Provides exterior access to SEEK and channel selection capabilities, thus, it’s
ideal for users who need to conveniently change channels or easily SEEK
to find a channel with a transmission
! Offers maximum flexibility
! Is ideal for personal use, schools, language translation, museums, and high
interference applications
The LR-400
! Accesses and displays all 57 channels (unless you lock it on only one channel)
! Has channel up and down and SEEK buttons behind the door, limiting access to
channel changing
! Is ideal when users do not need to (or you do not want them to) change channels
! Is ideal when the receiver is tuned to the same channel most of the time
! Is ideal for places of worship, tour groups, theaters, and stadiums
! Is lower in cost than the LR-500
LR-400 Display Receiver
The LR-400’s
CHANNEL and
SEEK features
are behind
lockable door
RF Frequency Range:
72MHz: 72.05 - 75.95MHz
216MHz: 216.025 - 216.975 MHz
Sensitivity:
.6uV typical, 1uV maximum for 12dB SINAD
Signal to Noise ratio:
72MHz: Wide band channels, 60dB;
Narrow, 54dB
216MHz: Wide band channels, 50dB;
Narrow, 44dB
Frequency Response:
72MHz: 30Hz to 17KHz, ± 3dB
216MHz: 30Hz to 10KHz, ± 3dB
Distortion:
< 2% THD
Squelch:
40dB with loss of RF signal
Antenna:
Uses headphone cable
Available Channels:
72MHz: 17 wide band, 40 narrow band
216MHz: 19 wide band, 38 narrow band
Physical:
Dimensions: 3” W x 1”D x 5”H
(7.6cm W x 2.5cm D x 13cm H)
Weight: < 1 lb. (.45 kg) with batteries
(LR-500 Only) Programmability:
Allows only programmed channels to appear
on the display
Power:
Two AA batteries, high capacity alkaline or
NiMH rechargeable; external power
connector 7.5 VDC, tip positive, <300mA
Battery Life:
40 hours with high capacity alkaline,
20 hours with rechargeable NiMH
Ear Speaker (LA-164)
Consumer Camcorder
Cable (LA-265)
Neckloop (LA-166)
Stereo Headset (LA-165)
Dual Ear Buds (LA-162)
Single Ear Bud (LA-161)
Receiver
Earphone Options
Listen Advantage:
Every Listen product offers 57
channels tunable on-site with
the simple push of a button.
Thus, you have 57 opportunities
to find one or more clear
transmission channels!
TTunability
unability
Lit LED = ‘power on’
Flashing = ‘battery low’
2X Flashing = ‘charging’
LR-500 Programmable Display Receiver
LR-400 Display Receiver
Exclusive belt
clip "loop"
prevents unit
from slipping off
Mechanical lock
prevents users
from accessing
batteries
Side View
Receiver Specifications
Receiver Comparison
LISTEN RECEIVER BENEFITS
Field Tunability –
In the sometimes crowded world of RF, the ability to quickly change
channels and avoid interference is a necessity: Listen offers 57 channels which are
tunable on-site using UP and DOWN buttons. It’s as simple as that!
Look & Listen Display – No need to guess battery level status with our 3-stage indicator!
Digital – Listen receivers are digitally-tuned so transmission won’t drift; assurance
that when you select a channel, it stays on channel!
SmartCharge
™
– Batteries won’t overcharge! Charging circuitry is conveniently built
into Listens receivers; never worr y about unplugging a transformer at a certain time.
Save money and eliminate hassle! – Advanced Nickel Metal Hydride (NiMH)
rechargeable batteries, which can be recharged within Listen’s products, have no memory
effect and can last up to ten times longer than typical NiCAD batteries.
Seek! – Press SEEK to find an in-range transmitting channel; perfect for personal use.
To Contact Listen: Telephone: +1.435.647.0318 Toll Free: 1.800.330.0891 Fax: +1.435.647.0316 Email: sales@listentech.com Internet: www.listentech.com 6/2000
Specifications are subject to change without notice.
Transformer
Charging
Option plugs
in here
Listen Receivers can operate on alkaline batteries or advanced
rechargeable Nickel Metal Hydride (NiMH) batteries, which
can be recharged within each unit. NiMH batteries can last
up to ten times longer than typical NiCAD batteries.
Alkaline
Rechargeable
NiMH Batteries
Available in
72 or 216MHz
Pro Camcorder Cable
(LA-266)
TM
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Fast, no-fuss
removal and
replacement of
batteries, if
required
Switch to select
alkaline or
rechargeable
NiMH batteries
Listen’s exclusive SmartCharge™technology makes recharging
assistive listening products easier than ever! Listen offers four
charging options to conveniently recharge advanced Nickel
Metal Hydride batteries within its products.
" Automatic drop-in charging
" A secure place for each earphone to prevent cable tangling
" Simple and easy storage, handling and charging of your Listen system
Option 1:
Listen’s 16-Slot Charging/Carrying Case
with power supply (LA-311) includes:
Receiver & Portable Transmitter Charging Options
Option 2:
4-Slot Charging Tray with Power Supply (LA-301)
" Automatic drop-in charging
" Add an expansion charging tray (LA-308) to charge up to eight portable products
Option 3:
Power/Charging Transformer (LA-202)
" An ideal, economical solution for charging a small number of units
" One transformer charges one unit
Option 4:
12VDC Automobile Power/Charging Transformer (LA-305)
" Plugs into the product and into a motor vehicle’s 12V connector
" One transformer charges one unit
TM
To Contact Listen:
Telephone: +1.435.647.0318
Toll Free: 1.800.330.0891
Fax: +1.435.647.0316
Email: sales@listentech.com
Internet: www.listentech.com
Updated: 6/2000
Specifications are subject to
change without notice.
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