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17
CESSNA
3OO
TRANSPONDER
AND ALTITUDE ENCODER (BLIND)
OPERATING HANDBOOK
SUPPLEMENT
PILOT'S
t.rd\
I
'k\\
\
'ri$;i'rxn
./
FUNCTION SWITCH
-
Controis
application
of power
and selects
transponder
operating
mode
as
follows:
OFF
-
Turns
set off.
SBY
-
Turns
set on
for
equipment warm-up or
standby power.
ON -
Turns set on
and enables transponder
to transmit
Mode
A
(aircraft
identification) reply
pulses.
ALT
-
Turns
set on and enables
transponder
to
transmit
either
Mode A
(aircraft
identification)
reply
pulses
or
Mode
C
(altitude reporting)
pulses
selected
automatically by
the
interrogating
signal.
REPLY LAMP - Lamp flashes
to
indicate transmission of
reply
pulses;
glows
steadity
to
indicate transmission
of
IDENT
pulse
or satisfactory
self-test opera-
tion. (Reply lamp
wiII
also glow steadily
during
initial
warm-up
period.)
Figure
1.
Cessna 300
Transponder
and
Altitude
Encoder (Blind)
(Sheet
1
of
2)
1
July
1979
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