Lectrosonics CR175 User Manual

Page 5

Compact Receiver

OUTPUT

OFF

POWER

LECTROSONICS

CR175

-20

0dB

MODULATION

Since the internal circuits are all tightly regulated the receiver will continue to operate to a battery voltage of 6.5 volts.
From 6.5 volts to 6 volts, the receiver will still operate, but with degraded performance. Below 6 volts, the regulated
and temperature compensated squelch circuit will cease to be regulated. The result is that the squelch circuit will
remain “open”. This will allow considerable noise to pass through the audio circuits if the associated transmitter is off,
or if other circuits of the CR175 stop operating because of the low voltage condition. In addition, three out of the four
LEDs on the front panel will light (the exception being the POWER LED). Please note that a weak battery will some
times light the POWER LED immediately after turn on, but soon will discharge to the point where the LED will extin
guish. Regular installation of fresh batteries will insure optimum operation.

RF LED

Lights when the transmitter is turned on and the receiver has a good signal. When the carrier signal from the trans
mitter is too weak to produce a clean audio signal, the lamp will go out.

MINI PHONE JACK

Provides a monitor, separate from the rear panel XLR audio output. The output level from this jack is controlled by the
recessed trim-pot on the side panel.

The output at this mini connector is designed for a medium impedance earphone. An earphone with an impedance
between 30 and 300 Ohms will usually provide adequate volume. The sound from a low impedance ear phone (ie. 8
Ohms) will not be very loud and may be distorted at higher listening levels.

ANT TERMINAL

Connects to any 50 ohm antenna with a BNC type connector (a telescoping whip antenna is supplied). The A-185
Coax remote type antenna may also be used.

Rio Rancho, NM – USA