.5
CESSNA 300 TRANSPONDER
PILOT'S OPERATING HANDBOOK
AND ENCODING ALTIMETER
SUPPLEMENT
SECTION 3
EMERGENCY PROCEDURES
TO TRANSMIT AN EMERGENCY SIGNAL:
1.
Function Switch -- ON.
2.
Reply-Code Selector Knobs -- SELECT 7700 operating code.
TO TRANSMIT A SIGNAL REPRESENTING LOSS OF ALL
COMMUNICATIONS (WHEN IN A CONTROLLED ENVIRONMENT):
1.
Function Switch -- ON.
2.
Reply-Code Selector Knobs -- SELECT 7700 operating code for 1
minute; then SELECT 7600 operating code for 15 minutes and then
REPEAT this procedure at same intervals for remainder of flight.
SECTION 4
NORMAL PROCEDURES
BEFORE TAKEOFF:
1.
Function Switch -- SBY.
TO TRANSMIT MODE A (AIRCRAFT IDENTIFICATION) CODES IN
FLIGHT:
1.
Reply-Code Selector Knobs -- SELECT assigned code.
2.
Function Switch -- ON.
3.
DIM Control -- ADJUST light brilliance of reply lamp.
NOTE
During normal operation with function switch in ON
position, reply lamp flashes indicating transponder re-
plies to interrogations.
4
1 July 1979
.5
PILOT
'
S OPERATING HANDBOOK
CESSNA 300 TRANSPONDER
SUPPLEMENT
AND ENCODING ALTIMETER
4.
ID Button -- DEPRESS momentarily when instructed by ground
controller to "squawk IDENT" (reply lamp will glow steadily,
indicating IDENT operation).
TO TRANSMIT MODE C (ALTITUDE REPORTING) CODES IN FLIGHT:
1.
Off Indicator Warning Flag -- VERIFY that flag is out of view on
encoding altimeter.
2.
Altitude Encoder Altimeter Setting Knob -- SET IN assigned local
altimeter setting.
3.
Reply-Code Selector Knobs -- SELECT assigned code.
4.
Function Switch -- ALT.
NOTE
When directed by ground controller to "stop altitude
squawk", turn Function Switch to ON for Mode A opera-
tion only.
NOTE
Pressure altitude is transmitted by the transponder for
altitude squawk and conversion to indicated altitude is
accomplished in ATC computers. Altitude squawked will
only agree with indicated altitude when the local altimeter
setting in use by the ground controller is set in the
encoding altimeter.
5.
DIM Control -- ADJUST light brilliance of reply lamp.
TO SELF-TEST TRANSPONDER OPERATION:
1.
Function Switch -- SBY and wait 30 seconds for equipment to
warm-up.
2.
Function Switch -- ON or ALT.
3.
TST Button -- DEPRESS and HOLD (reply lamp should light with
full brilliance regardless of DIM control setting).
4.
TST Button -- Release for normal operation.
SECTION 5
PERFORMANCE
There is no change to the airplane performance when this avionic
equipment is installed. However, the installation of an externally mounted
antenna or several related external antennas, will result in a minor
reduction in cruise performance.
1 July 1979
5 / (6 blank)
