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TRANSMITTER SELECTOR SWITCH
The transmitter selector switch, labeled "TRANS," has two
positions. When two transmitters are installed, it is necessary to
switch the microphone to the radio unit the pilot desires to use for
transmission.
selector switch in the position corresponding to the radio unit
which is to be used. The up position selects the upper transmitter
and the down position selects the lower transmitter.
The installation of Cessna radio equipment provides certain
audio back-up
functions that the pilot should be familiar with.
transmitter selector switch is placed in position 1 or 2, the audio
amplifier of the corresponding transceiver is utilized to provide the
speaker audio for all radios. If the audio amplifier in the selected
transceiver fails, as evidenced by loss of speaker audio for all
radios, place the transmitter selector switch in the other
transceiver position. Since an audio amplifier is not utilized for
headphones, a malfunctioning amplifier will not affect headphone
operation.
SPEAKER PHONE SWITCHES
The speaker-phone switches determine whether the output of
the receiver in use is fed to the headphones or through the audio
amplifier to the speaker. Place the switch for the desired receiving
system either in the up position for speaker operation or in the
down position for headphones.
AUTOPILOT-OMNI SWITCH
When a Nav-O-Matic autopilot is installed with two compatible
omni receivers, an autopilot-omni switch is utilized. This switch
selects the omni receiver to be used for the omni course sensing
function of the autopilot. The up position selects the upper omni
receiver in the radio panel stack and the down position selects the
lower omni receiver.
This is accomplished by placing the transmitter
capabilities and
transmitter
selector switch
When the
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