T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
(4) Provides HOT/COLD MIC selection
(5) MIC switch: two-position toggle switch
(a) HOT: permits intercom between
cockpits/ground crew without
depressing microphone switch
(b) COLD: permits intercom between
cockpits/ground crew only when
microphone switch is depressed
(6) ALT-NORM switch: two-position toggle
switch
(a) ALT: selects alternate audio amplifier
for use when normal amplifier fails.
Amplifies all inputs at fixed audio level,
i.e., receiver volume inoperative
(b) NORM: selects normal audio amplifier
(7) ICS volume control knob: When ALT-
NORM switch in NORM, adjusts intercom
reception volume independent of individual
equipment volume settings
(8) RCVR volume control knob: adjusts
volume of all receiver audio signals
delivered to headsets. With exception of
marker beacon audio, volume of all COMM/
NAV signals is adjustable on individual
control panels
d.
IFF system (transponder): The IFF transponder
provides for aircraft identification and air traffic
control functions. It is controlled remotely by
the IFF control panel located in the fwd cockpit
(1) IFF
(a) Master control selector (MASTER)
(9-98) Original
Page 27-124
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