Textron Cessna 172S Skyhawk SP, Information Manual

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SECTION 9 - SUPPLEMENTS
SUPPLEMENT 16
GENERAL
(Continued)
CESSNA
MODEL 172S
BENDIX/KING KT 73 MODE S TRANSPONDER
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''''''''
2 3
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IIDTI
FL042
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1200R
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Figure S16-1
1. IDENT BUTTON (lOT) - When pushed, a pulse is transmitted
for identification of the airplane on ATC radar display. lOT
will be displayed steadily and R will flash for approximately
18 seconds when the Function Selector Knob is set to GND,
ON, or ALT. Button brightness is controlled by the avionics
light dimming rheostat.. .
2. MODE ANNUNCIATOR - Displays "FL" on the transponder
when "ALT", "SBY", or "GND" is selected on the Mode
Selector Switch. Displays "lOT" "",hen the lOT but.tori is
pushed.
3. ALTITUDE DISPLAY (FL) - The Flight Level altitude is
shown on the left side of the display only when the Mode
Selector Switch is set to Altitude mode (ALT). In ALT mode,
the KT 73 shows the pressure altitude on the left side of the
display area. The altitude is shown in hundreds of feet.
Dashes will appear in the altitude display instead of
numbers if an invalid code is received from the encoder.
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S16-6 U.S.
FAA APPROVED
Original