Compact Receiver
Rio Rancho, NM
7
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.
Summary of Contents for CR187
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