Cessna 300 Transponder (Type Rt-359A) And Optional Altitude Encoder (Blind) - Cessna Hawk XP R172K Pilot Operating Handbook

CESSNA 300 TRANSPONDER
AND ENCODING ALTIMETER
PILOT'S OPERATING HA.NI"" '''I ,....
)'I"S
OPERATING HANDBOOK
SUPPI.I<I\IIIIIP-PLEMENT
CESSNA 300 TRANSPONDER
AND ALTITUDE ENCODER (BLIND)
(3) TST Button -- DEPRESS and HOLD (reply lamp should lil'lli
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 mount
ed antenna or several related external antennas, will result in a minor
reduction in cruise performance.
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SUPPLEMENT
CESSNA 300 TRANSPONDER
(Type RT-359A)
AND
OPTIONAL ALTITUDE ENCODER (BLIND)
SECTION 1
GENERAL
The Cessna 300 Transponder (Type RT-359A), shown in Figure
1,
is
1111'
airborne component of an Air Traffic Control Radar Beacon System
I/\'I'CRBS). The transponder enables the ATC ground controller to "see"
'Ilid identify the aircraft, while. in flight, on the control center's radarscope
1I1111'e readily.
The Cessna 300 Transponder system consists of a panel-mounted unit
,lIld an externally-mounted antenna. The transponder receives interroga-
111111 pulse signals on 1030 MHz and transmits pulse-train reply signals on
III!lOMHz. The transponder is capable of replying to Mode A (aircraft
Idl'lItification) and also Mode C (altitude reporting) when coupled to an op-
1IIIIIalaltitude encoder system. The transponder is capable of replying on
1IIIIhmodes of interrogation on a selective reply basis on any of 4,096 in-
turma.tion code selections. The optional altitude encoder system (not part
"I a standard
300 Transponder system) required for Mode C (altitude re-
jlllrUng) operation consists of a completely independent remote-mounted
oIwitizer that is connected to the static system and supplies encoded al-
11111<\e information to the transponder. When the altitude encoder system
I" «oupled to the 300 Transponder system, altitude reporting capabilities
11'1' a vailable in 100-foot increments between -1000 and +20,000 feet.
All Cessna 300 Transponder operating controls are located on the front
1'''11<'1 o f the unit. Functions of the operating controls are described in
VII',ure 1.
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