T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
6.
IFF system (transponder): The IFF transponder
Sg 12, fr 39
provides for aircraft identification and air traffic
IFF Normal Operation
control functions. It is controlled remotely by the IFF
control panel located in the fwd cockpit
a.
IFF control panel: controls operation of IFF
transponder
b.
IFF transponder
(1) Receives series of multiple-pulse
interrogation signals from ground-based,
shipboard, or airborne interrogator
(encoded radar signal)
(2) Decodes interrogation signals
(3) Checks validity of signals
(4) Transmits reply to provide: aircraft
identification and altitude from barometric
altimeter (Mode C)
(5) Both antennas receive transmissions, but
only antenna receiving the strongest signal
transmits reply
Sg 12, fr 45
7.
TACAN system:
TACAN System Normal
Operation
a.
TACAN provides magnetic bearing to/from the
selected station. It also provides a distance
measurement capability. It consists of a single
TACAN RT that is controlled remotely by the
TACAN control panel in either cockpit. TACAN
navigational data are displayed on the HSI
display and HUD
b.
Testing
(1) TEST button initiates system built-in test
(BIT) if pushed and held for a minimum of
5 seconds and the following conditions
exist:
(9-98) Original
Page 27-117
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