Avionics Support Equipment; Audio Control Panel; Transmitter Selector Switch - Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual

CESSNA
-MODEL 182Q
SECTION 7
AIRPLANE
&
SYSTEMS DESCRIPTIONS
panel, protects the stall warning system. The vane in the wing senses the
change in airflow over the wing, and operates the warning horn at
airspeeds between 5 and 10 knots above the stall in all configurations.
If the airplane has a heated stall warning system, the vane and sensor
unit in the wing leading edge is equipped with a heating element. The
heated part of the" system is operated by the PITOT HEAT switch, and is
protected by the PITOT HEAT circuit breaker.
The stall warning system should be checked during the pre-flight
inspection by momentarily turning on the master switch and actuating the
vane in the wing. The system is operational
if
the warning horn sounds as
the vane is pushed upward.
AVIONICS SUPPORT EQUIPMENT
If the airplane is equipped with avionics, various avionics support
equipment may also be installed. Equipment available includes two types
of audio' control panels, microphone-headset installations and control
surface static dischargers. The following paragraphs discuss these items.
Description and operation of radio equipment is covered in Section 9 of
this handbook.
AUDIO CONTROL PANEL
Two types of audio control panels (see figure 7-10) are available for
this airplane, depending upon how many transmitters are included. The
"operational features of both audio control panels are similar and are
discussed in the following paragraphs.
TRANSMITTER SELECTOR SWITCH
When the avionics package includes a maximum of two transmitters, a
two-position toggle-type switch, labeled XMTR, is provided to switch the
"microphone to the transmitter the pilot desires to use.
If
the airplane
avionics package includes a third transmitter, the transmitter selector
switch is a three-position rotary-type switch, labeled XMTR SEL. The
numbers 1, 2, or 1, 2 and 3 adjacent to the selector switches correspond to
the first, second and third (from top to bottom) transmitters in the avionics
stack. To select a transmitter, place the transmitter selector switch in the
position number corresponding to the desired transmitter.
1 October 1979 7-37