Lectrosonics R185 - Manual (Page 8)

OPERATING INSTRUCTIONS
1) Connect the power supply.
2) Attach the antenna.
3) Connect the audio cable from the sound system or recorder to the receiver.
4) Set the front panel switch to the "MUTE" position. Check to see that the red POWER LED lights up (the left-
most LED in the 9-LED display).
5) Adjust the transmitter "gain." THIS IS PERHAPS THE MOST IMPORTANT STEP IN THE SET UP
PROCEDURE. See your transmitter manual for specific directions on the proper gain adjustment of your particular
transmitter.
6) After adjusting the transmitter gain, move the OFF/MUTE/ON switch to the "ON" position.
7) Operate the system and adjust the receiver output level as required for your equipment. The input levels on
different recording and PA equipment vary, which may require that you set the OUTPUT ATTENUATOR control in
an intermediate position. Try different settings and listen to the results. If the output of the receiver is too high, you
may hear distortion or a loss of the natural dynamics of the audio signal. If the output is too low, you may hear
steady noise (hiss) along with the audio.
NOTE: The OUTPUT ATTENUATOR knob does not adjust the 9 LED indicator.
INDICATOR QUICK REFERENCE
RF LEDs - The RF LED lights when the transmitter is turned on and the receiver is picking up a strong enough
carrier to provide a good audio signal.
POWER - The left-most LED (red) in the 9-LED display lights up when the receiver is properly connected to a
power supply and switched on.
MODULATION - The audio level is indicated by 9 LEDs on the front panel. The normal operating level occurs
when the intermediate (green) LEDs are lighting up with the audio. The right-most LED (yellow) lights up when the
audio level is high and the signal is being limited in the transmitter. An extremely high audio level may cause
distortion. If none of the green LEDs light up when audio is being produced through the system, the audio level is
too low, which may produce audible background noise (hiss) in the audio. The audio level is adjusted with the
transmitter GAIN or MIC LEVEL control.
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