Operating Instructions - Listen LT-700-072 User Manual

LT-700 Operating Instructions
1
Make sure the unit is on
When you press the power button, the LED on top of the unit will be illuminated and the LCD display will be
visible.
Select the channel for transmitting
2
Please refer to Channel Selection on page 14 for guidelines on choosing an
interference-free channel.
To select a channel, press either the channel UP or DOWN button until the display reads the channel you
want. To lock your selection, press and hold the UP or DOWN button for 5 seconds. When locked, the small
padlock icon will be visible on the display. Press and hold either button again to unlock.
72MHz Units
The LT-700-072 operates on 17 wide band channels and 40 narrow band channels. Channels represented
by letters in the display (i.e. A) are wide band channels; channels represented by numbers are narrow band
channels.
216MHz Units
The LT-700-216 operates on 19 wide band channels and 38 narrow band channels. Channels beginning with
a "2" are wide band channels and channels beginning with a "1" or "3" are narrow band channels.
Listen recommends using wide band channels whenever possible, as they are not as noisy as narrow band
channels.
Refer to the Frequency Compatibility tables (pages 17-18) for specifi c frequencies and
compatibility with other manufacturers. Also refer to pages 18-19 for more information on channel selection.
3
Close the Access Door
Lock it if desired by turning the locks on the side of the unit to the vertical position. See diagram on page 7.
4
Using the red MUTE / TALK switch on top of the unit
The red mute/talk switch on top of the unit is a handy way to "turn off" the audio from the microphone.
Slide the switch to the mute position and the microphone audio is muted. When the microphone audio is
muted, the LED on top of the unit flashes rapidly. Slide the switch back to the talk position and the micro-
phone audio will return to the transmission. If you are using line level audio, it will not be effected by the
mute/talk switch.
10
LT-700 Shown in the TALK position