Adjusting Microphone Gain: If the transmitted audio from the microphone is too high or too low, remove the belt clip on the rear of the unit and pry out the small rubber plug to the right of the screw boss. This will reveal the microphone gain control potentiometer. Using a plastic screwdriver (supplied), adjust the gain con- trol clockwise to increase the microphone gain or counterclockwise to decrease the microphone gain. Reinstall the rubber plug and belt clip when adjustments are complete.
REMOVE BELT CLIP
CAUTION
DO NOT remove this rubber plug or attempt to adjust. This beltpack h a s b e e n p re c i s e l y tuned and any attempt to alter this adjustment w i l l re s u l t i n a
REMOVE THIS RUBBER PLUG FOR ACCESS TO THE MICROPHONE GAIN CONTROL
Figure 12
Adjusting Microphone Gain
If the microphone gain is too high, the over modulation LED (the Over Modulation Circuitry uses the same LED as the Low Battery Circuitry [labeled bat/ ovmod]) will be illuminated when you are talking. Decrease the Microphone Gain until this illumination ceases when talking in a normal tone.