Cessna 172S Pilot Operating Handbook page 194

SECTION 9 S U PPLEME NTS
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SUPPLE MENT 20 - FAA APPROVED
1 0. INTERCOM MODE SELECT (ISO-ALL-CREW) -- A three-position mode
switch that allows the pilot to tailor the intercom function to best meet
the current cockpit situation.
ISO -- (Up Position )
connected only to the aircraft radio system.
aircraft radio reception (and sidetone during radio transmissions). The
copilot will
passengers will hear copilot intercom and Entertainment.
hear aircraft radio receptions or pilot transmissions.
ALL -- (Middle Position)
intercom.
Entertainment.
music volume automatically decreases.
gradually back to the original level after communications have been
completed.
CREW -- (Down Position)
intercom channel and have exclusive access to the aircraft radios.
They may also listen to Entertainment.
communicate among themselves without interrupting the crew and also
may listen to Entertainment. Anytime the KMA 28 is in either the COM
1 /2 or COM 2/1 split modes, the pilot and copilot intercom is controlled
with the
intercommunications, but never hear aircraft radios.
MODE PilOT HEARS
Isolate AlC Radios Pilot
Sidetone (during
radio transmission)
Entertainment is
Muted
Pilot
All
Copilot
NC Radio
Passengers
Entertainment
Crew Pilot
Copilot
AlC Radio
Entertainment
Figure 1 . Bendix/King KMA 28 Audio Selector Panel (Sheet 4 of 5)
The pilot is isolated from the intercom and is
hear passenger's intercom and Entertainment,
All parties will hear the aircraft radio and
Crew will hear Entertainment, passengers will
During any radio or intercom communications, the
Pilot and copilot are connected on one
ICS button .
COPILOT HEARS
Copilot and pas-
senger intercom
Entertainment
Copilot
Pilot
AlC Radio
Passengers
Entertainment
Copilot
Pilot
AlC Radio
Entertainment
The pilot will hear the
The music volume increases
Passengers can contin ue to
The passengers
PASSENGER
HEARS
This mode allows the pilot
Passenger and Co-
pilot intercom to communicate without the
Entertainment others bothered by the con-
versations. Copilot and pas-
sengers can continue to
communicate and listen to
music.
This mode allows all to hear
Passengers
Pilot radio reception as well as
Copilot
communicate on the inter-
AlC Radio
com. Music and intercom is
Entertainment muted during intercom and
radio communications.
Passengers This mode allows the pilot
Entertainment and copilot to concentrate
on flying while the passen-
gers can communicate
amongst themselves.
C ESSNA
MODEL 1 72S
while
Neither will
hear
will maintain
COMMENTS