Lectrosonics CR187 User Manual download pdf (Page 7)

Compact Receiver

Operating Instructions

1) Connect the power cord or install the battery. (The

CR187 is a negative ground device. Do not connect

this receiver to a positive ground device through

the audio cabling. Damage to either device could

result.)

2) Attach and extend the antenna.

3) Connect the audio cable.

4) Set the front panel switch to either “EXT” or “INT”,

depending upon the power source. Check to see

that the red POWER LED lights up.

5) THIS IS CRITICAL STEP IN THE SET UP PRO-

CEDURE TO ACHIEVE OPTIMUM SIGNAL TO

NOISE RATIO. Adjust the transmitter “gain” for full

modulation and slight limiting on signal peaks. See

your transmitter manual for speciﬁc directions on

the proper gain adjustment of your transmitter.

6) Adjust the output control according to the type of in-

put on your equipment. The input levels on different

VCR’s and PA equipment vary, which may require

that you set the OUTPUT control in an intermedi-

ate 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 dynam-

ics of the audio signal. If the output is too low, you

may hear steady noise (hiss) along with the audio.

The CR187 output was designed to drive micro-

phone level inputs. The output signal level ranges

from -50dBV with the output control fully counter

clockwise to -20dBV with the output control fully

clockwise.

On the M187 transmitter, the MIC LEVEL control and

LEVEL and LIMIT LEDs are used to set the input gain

for optimum signal to noise ratio.

On the H187 transmitter, the LEVEL control on the rear

panel and LEVEL and LIMIT LEDs on the top panel

next to the input connector are used to set the input

gain for optimum signal to noise ratio.

Rio Rancho, NM

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Lectrosonics CR187 User Manual Page 7