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simultaneously at VHF frequencies.
JTIDS will not interfere with any ofthe V/UHF communication
radios or date link because it uses a higher
frequency band. Tacan compatibility, which is in the
same frequency band (L-band) as JTIDS, is performed
internally by JTIDS.
19.2 INTERCOMMUNICATIONS
The KS provides normal, backup, or emergency
communications between crewmembers. It also combines
and amplifies audio signals received from other
electronic receiving equipment (ECM, Sidewindertone,
IFF/SIF, radar altimeter, and voice radios, etc.).
Identical ICS con&o1 panels (Figure 19-3) are on the
pilot and RIO left-side consoles. The KS includes four
amplifiers, two at each cockpit station, that permit duplex
operation during normal operation. Ifone amplifier
fails, it may be bypassed by selecting either the BiU
(backup) or EMER (emergency) position on the ICS
control panel. This permits continued ICS operation.
19-1 ORIGINAL
NAVAIR OI-l=MAAD-I
TYPE AND I LOCATION
OF CONTROLS
‘ilot and RIO left
:onsole and in
:he nosewheel
Nell
DESIGNATION
NTERCOM
[LS-46OB)
FUNCTION
Provides voice
communications between
crewmembers and between
cockpit and groundcrew, also
amplifies various warning and
weapon tones, and voice
communications.
JTIDS
[AN/URC-107)
Provides jam-resistant,
cryptographically secure
digital voice and data,
navigation, relay, and tacan.
RANGE
Within the aircraft
and groundcrew
cersonnel
3PERATOR
3oth, and
Foundcrew
lersonnel
30th
I
I
\
I
I
,
I
,
I
I
I
I
t
I
I
I
I
.ine of sight (LOS)
up to 300 nautical
niles.
‘ilot left console,
310 right and left
:onsoles
‘ilot and RIO left
:onsole
rACAN Navigation aid provides
:AN/ARN-116(V)) bearing and distance
[ANIURC-107) information to local stations.
JHF DATA LINK Provides two-way digital
[AN/ASW-27C) message communication.
d/UHF 1 Provides two-way voice and
COMMUNICATIONS tone communication.
SET
[AN/ARC-182(V))
$/UHF 2 Provides two-way voice and
COMMUNICATIONS tone communication.
SET
[AN/ARC-162(V))
LOS up tc 390 nm,
depending on
altitude.
LOS up to 160
nautical miles.
LOS up to 200
nautical miles.
30th
30th
30th
IO right console
Pilot left console
LOS up to 200
nautical miles.
710 left console
Pilot and RIO left
console
v/UHF DIRECTION
FINDER
(OA-6697/ARD)
Provides bearing lnformatlon
to selected stations.
UHF VOICE Cryptographic encoding and
SECURITY decoding of UHF voice
EQUIPMENT (KY-56) communications.
LOS up to 160
nautical miles.
Same as radio in
use.
30th
310 Left console
I
IFF TRANSPONDER 1 Resoonds to interrooations LOS. ?I0 Right console
(AN/APX- 100) by &her aircraft org&und
stations.
IFF INTERROGATOR Requests identification from
(ANIAPX-76B) I other aircraft.
LOS. DD and right
console
RECEIVER Right console
DECODER
(AN/ARA+SA)
Provides glideslope signals
for carrier landing system.
RADAR ALTIMETER Displays height above earth’s
(AN/APN- 194) surface.
RADAR BEACON Aids in tracking by ship and
(AN/APN - 164) ground-based x-band
radars. Provides down link
for automatic carrier landing
system.
LOS up to 20
nautical miles.
0 to 5,000 feet.
Pilot
Pilot Pilot’s instrument
panel
LOS. Right console
Figure 19-l. Communications and Associated Equipment
ORIGINAL 19-2
NAVAIR 0%FI4AAD-4
1 LWR /b’\UPRJI
NOMENCLATURE I FUNCTION
@ .J;ftantenna select AUTO - Enables JTIDS to transmit on the upper antenna and to
receive on either the upper or lower antenna depending upon
signal strength.
LWR - Enables JTIDS to transmit and receive on the lower antenna.
UPR - Enables JTIDS to transmit and receive on the upper antenna.
BOTH - Enables JTIDS to transmit and receive on both the upper and
lower antenna. 200 watt output power is equally divided
between the upper and lower antenna, 100 watts each.
0 V/UHF-l DL antenna UPWLWR - Selects upper V/UHF 1 and lower D/L antenna.
select switch
LWR/UPR - Selects lower V/UHF 1 and upper D/L antenna.
0 V/UHF-2 antenna UPR - Selects upper V/UHF 2 antenna.
select switch
LWR - Selects lower V/UHF 2 antenna.
　
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