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Figure 19-2. Antenna Select Panel
19.3 ORIGINAL
NAVAIR OI-F’l4AAD-I
NOMENCLATURE FUNCTION
0
Pilot’s COMM switch ICS - Permits intercommunication when COLD MIC is selected on
function selector. Overrides V/UHF communications.
I JTIDS - Keys the JTIDS terminal for voice communications.
V/UHF 1 - Keys ARC-182 radio for operation.
V/UHF 2 - Keys ARC-1 82 radio for operation.
0
VOL control Controls intercommunication audio level at that cockpit station. Audio level
at other station not affected; however in EMER volume is controlled by
other station.
Figure 19-3. Intercommunication Controls (Sheet 1 of 2)
ORIGINAL
NAVAIR 01.t=l4AAD-1
NOMENCLATURE FUNCTION
0
Amplifier selector B/U - (Backup) used to bypass a fault amplifier and uses a
backup output amplifier at own station.
NORM -
EMER -
(Normal) used when all amplifiers are functioning properly.
(Emergency) uses the backup amplifier at own station, and
makes use of input amplifier of other station over the
emergency line. Volume is controlled by other station.
@ Function selector RADIO
OVERRIDE - Attenuates non critical radio audio to emphasize
intercommunication when urgent.
HOT MIC - Intercommunication wfthout keying.
COLD MIC - Intercommunication only when pilot actuates COMM switch
on inboard throttle or RIO actuates keying switch on left foot
rest.
0 RIO’s ICS button (left Permits intercommunication if COLD MIC is selected on the function
foot rest) selector control. Overrides V/UHF communications.
@
RIO’s MIC button (right Permits transmission on V/UHF 1, V/UHF 2, or BOTH radios as well as
foot rest) JTIDS as selected on the radio frequency channel indicator (RFCI).
Figure 19-3. Intercommunication Controls (Sheet 2 of 2)
Note
If two amplifiers fail at the same station,
intercommunication is impossible.
The external interphone connection is in the nose
wheelwell. When the pilot’s COMM switch is set to
HOT MIC, ground personnel can communicate with the
cockpit stations.
19.2.1 Audio Warning Signals. Audio warning
signals from the weapon system are available to either
or both crewmen through the ICS. Each signal has a
distinct tone. A visual display accompanies most audio
signals so that the flightcrew can expect the tone and
interpret its meaning. Most audio signals may be attenuated
orturned off ifnot required, allowing the flightcrew
to concentrateo n more critical tones. Critical warning
tones cannotb e attenuatedb y any mode of ICS operation.
With the front cockpit KS amplifier selector
knob in the EMER position, engine stall/
overtemperaturea nd Sidewinder tones will
not be available to the pilot,
Note
l Selection of EMER via the KS amplifier
selector knob in either cockpit allows use
of the other cockpit’s input amplifier.
l The RIO can obtain a Sidewinder and engine
sta1Vovertemperahuto-en e by selecting
EMER on his ICS panel. This allows
the RIO to use the pilot’s input amplifier.
Figure 19-4 provides a glossary of audio warning
signals available within the aircraft weapon systems.
Two 28-Vdc circuit breakers, ICS NFO (7F3) and ICS
PILOT (7F2), control power to and provide circuit protection
for the ICS. Power to both circuit breakers is
19-5 ORIGINAL
NAVAIR 0%FMAAD-1
TONE
IDEWINDER
POSITION CONTROLS FUNCTION CHARACTERISTICS
Pilot TONE* Missile aCqUiSitiOn High fr8qU8nCy.Chang8S
VOLUME/TACAN to indicate miSSil8
CMD panel self-track.
LR-67 Pilot and TONE Indicates a missile Low to high frequency,
RIO VOLUME/TACAN alert, missile launch, determined by scan rat8
panel (PILOT) critical threat, and/or and PRF of threat radar.
RADAR WARNING status change. Low- to high-frequency
RCVR panel (RIO) warble when missile
launch is detected.
qadar Altimeter Pilot and Radar altimeter
RIO indicator (pilot)
Low-altitude
warning
1,000 Hz tone, modulated
at 2 pulses per Second,
lasting 5 seconds or until
altitude is increased/limit
bug is lowered.
.PX-100 RIO IFF control panel Valid mode 4
interrogation
PRF of interrogation pulse
2,000 and 6,000 Hz.
acan Pilot and
RIO
Tacan control panel Station identification International morse code
with three-letter
designation.
,N/ARC-182 Pilot and V/UHF control panel Other aircraft International morse code,
RIO direction find (DF) voice.
reception.
:NGINE STALL/ Pilot None Engine stall Modulated 320 Hz for 10
)VERTEMPERATURE detection and/or seconds maximum or until
　
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