Listen Technologies LS-50-072, LS-50-216, LS-52-072, LS-51-216 Quick Start Guide

LR-500-072/216 Quick Reference Card

3.5 mm Output Jack: Connect a Listen earphone(s) here.

LED: When lit, indicates unit has power. When

batteries are low or charging the LED ashes

On/Off and Volume Control Dial

Look&Listen™ Display:

Shows receive level, channel,
programming, battery status,
and lock status.

Power/Charging Port

Channel Select Buttons

Front Door Lock

Battery Select Switch: Choose

the type of batteries being
used - Alkaline or NiMH.

SEEK Button: Allows the user
to search for or lock onto an
active channel.

Channel Display: Displays the
channel the LR-500 is currently on.

RF Receive
Indicator:

Indicates the
RF receive
level.

PGM:
Program
function is in
process.

L/O: Indicates while in programming

mode the specic channel has

been locked out.

Lock Icon: Indicates the unit is
locked on current channel.

Battery Level
Indicator

© 2008 Listen Technologies Corporation® All Rights Reserved 200859

SQ™ Switch: Turns SQ™ On/Off.

Battery Compartment:

Place two (2) AA batteries
in compartment. Be sure to
follow polarity pattern.

LR-500-072/216 Quick Reference Card

SQ™ (Super Quiet)
– SQ™ minimizes RF noise allowing clear reception.

– To work properly SQ™ must be enabled for both the transmitter and the receivers.

Channel Lock/Unlock

– To lock/unlock on a channel, hold the SEEK button for 4 seconds.

– The LED will blink momentarily when the channel lock is activated/deactivated.
– If the receiver is locked on a channel and the SEEK button is pushed, the LED will blink

Programming
– The LR-500 can be programmed to receive on a limited number of channels.

– Entering Programming Menu;

1. While the unit is ON, press and hold the channel UP and DOWN buttons.

2. The “PGM” icon will appear on the LCD.

3. Press the UP/DOWN buttons to scroll through channels. Pressing the SEEK button will toggle

4. When no buttons are pressed for 10 seconds, the program menu will exit.

Squelch

– Squelch will mute the audio output of your receiver when the signal from the transmitter is turned off or is

1. Turn unit off.

2. Press and hold the SEEK button; while holding SEEK, turn the unit on. Release the SEEK button.

3. Use the Channel UP/DOWN buttons to adjust the squelch sensitivity settings.

4. Squelch setting 00 is no squelch; this effectively disables the squelching capabilities of the

5. Press SEEK to exit the squelch programming mode.

too weak to be received. To adjust squelch, follow these steps:

For further details regarding advanced options for your Listen products please visit our website at

between lock/lockout for that channel.

receiver. Squelch setting 20 is maximum squelch sensitivity; you must have a very strong and
stable RF signal for the unit to not engage the squelch feature.

www.listentech.com Resources/Support/Manuals or

contact Listen at +1.801.233.8992 • +1.800.330.0891

© 2008 Listen Technologies Corporation® All Rights Reserved 200859

North America