Listen Technologies 863.050, User Manual

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LT-800 LT-800
LT-800 Operating Instructions
Test Tone (if necessary)
Adjust Audio Input Level
Adjust the input knob counterclockwise to add gain to Input 1. This will decrease gain to Input 2.
Adjust input knob clockwise to add gain to Input 2. This will decrease gain to Input 1. If you have
two audio sources connected to both Input 1 and 2, adjust the level of one input using the VU
meter, then adjust the output level of the other audio source. Adjust the input level until the left
VU meter(s) occasionally illuminate the red LEDs. Illumination of the red LEDs indicates the unit is
in limiting. Limiting is required so that the unit does not over-modulate the transmit signal. If you
don’t want any audio limiting to occur, make sure the red LEDs never illuminate. If you want a
highly limited signal, turn the audio gain up so the red LEDs illuminate often.
4
1
Adjusting Audio Levels
Test Tone Button
Audio Input Level Knob
Use the test tone to transmit a 400 Hz tone. This tone will allow the end user to know if the system is
transmitting properly. All receivers should be able to hear this tone if tuned to the proper channel.