From this report - Communication between the AOE-6 and other ships, shore facilities, aircraft, satellites and
all other external sources is handled by the Exterior Communications System. The system
contains the following groups: audio distribution group, communications control group,
switchboard group, Narrow band voice group, high frequency radio subsystem group, very high
frequency radio subsystem group, satellite communications radio subsystem group, UHF line of
site group, wide band secure voice group, special use items group, AN/SYQ-7(v)3 navmacs
group, teletype group, link 11 receive only group, quality monitoring system group, and the
AN/SAT-28. All of these groups are linked in series but the teletype group is used as a backup
for the AN/SYQ-7(v)3 navmacs group and a group in series as well.
Audio Distribution Group - The Audio Distribution Group consists of 13 TA-970/U phones,
4 TA-980/U phones, four H-169/U handset assemblies, and six loudspeaker groups. The first
loudspeaker group contains two loudspeaker sets, each with a LS-474/U loudspeaker and an
AM-3729/SR amplifier, one contains a C-10276/SSC Control. The second loudspeaker
group contains six loudspeaker sets; three with a NT-49548 Loudspeaker, an AN-3729/SR
amplifier, and a C-10276/SSC control; three with a J-550/U jackpot and a NT-49548
loudspeaker. The third group contains a single set with a LS-474/U loudspeaker and an
AM/3729/SR amplifier. The fourth group contains eight loudspeaker sets all with two LS-
474/U loudspeakers and AM-3729/SR sets, two of the loudspeaker sets also have a C-
10278/SSC control. The fifth group contains two loudspeaker sets each with two LS-474/U
30 loudspeakers and AM-3729/SR sets, one of the loudspeaker sets contains a C-10276/SSC
control. The six group contains a single loudspeaker set with two LS-474/U loudspeakers
and AM-3729/SR sets, a C-9351/WSC-3 LOS control unit, and a C-10278/SSC control.
Communications Control Group - The communications control group consists of three C-
9351/WSC-3 LOS control indicators, two sets containing two TSEC/KG-84A security
equipment and machinery and a C-11328/S digital data control interface unit, seven J-9395/U
jackboxes, a supervisory control panel, a OK-454(v)/WSC group, and an AN/SAT-2.
Switchboard Group - The Switchboard Group consists of eight SB-27278/SSR Switchboards,
a SB-985 comm patching switchboard, three SB-3686 secure comm patching switchboards,
three SB-3686 non-secure comm patching switchboards, eight SB-863/SRT XMTR/XFER
switchboard, a SB-863/SRT XMTR/XFER switchboard, and an SA-2112(v)2/STQ switching
matrix.
Narrow Band Secure Voice Group - This group contains two sets with an ANDVT and a
HMF-3-1/TSEC interconnecting group. One ANDVT is backed up with TSEC/KY-75
security equipment and machinery the other with a second ANDVT.
High Frequency Radio Subsystem Group - The High Frequency Radio Subsystem Group
contains two groups the high frequency receiver group and the high frequency broad band
transmitter group.
Very High Frequency Radio Subsystem Group - The Very High Frequency Radio Subsystem
Group consists of a 30-76 MHz VHF line of sight radio group, a 115-150 MHz VHF radio
group, and a 156-162 MHz VHF radio group. The 156-162 MHz VHF radio group is not
considered in the reliability calculation, to stay consistent with the original calculation.
Satellite Communications Radio Subsystem Group - The Satellite Communications Radio
Subsystem Group consists of the satcom fleet broadcast group and the UHF satcom
send/receive subsystem group. The satcom fleet broadcast group is backed up by the high
frequency radio subsystem group described above.
UHF Line of Sight Group - The UHF Line of Sight Group consists of two identical sets.
Each set contains an AS-1735/SRC antenna, an OA-9123/SRC antenna coupler group, four
RT-11-7(V)7/WSC03(V) radio transceiver and an MT-6069A/WSC-3(V) equipment rack.
Wideband Secure Voice Group - The Wideband Secure Voice Group consists of three
security sets, a J-3562/WR interconnecting group, KYB-6/TSEC W/J-3584U security
equipment, an HYP-2/TSEC power supply, and an SA-1711A/UR switching unit. Two of
the security sets contain three TSEC/KY-58 Security Equipment and HYX-58/TSEC
interfacing unit sets, and a HNF-2/TSEC interconnecting group. The last security set
consists of a TSEC/KY-58 security equipment, an HYX-58/TSEC interface unit and an
HNF-2/TSEC interconnecting group.
Special Use Items Group - The Special Use Items Group consists of an
AM-2123A(V)/U
radio frequency amplifier, two AN/URQ-23 frequency time standards, an IC/SM-10 alarm
switchboard, a frequency standard outfit, a C-4421/SR transmitter control, a J-9398/U audio
jackbox, and a SB-315B/U telegraph key control panel.
AN/SYQ-7(V)3 Navmacs Group - The AN/SYQ-7(V)3 Navmacs Group consists of two
SYM low level junction box, two AN/USH-26(V) recorder/reproducer, two AN/UYK-
20X(V) data processor, a peripheral switching unit, an ON-143(V)4/USQ interconnecting
group, an RD-3975(V)2/U tape reader punch, three AN/USQ-59(V) data terminal set, two
TT-624(V)5/UO teleprinter, two TSEC/KG-36-4 security equipments, and a mount.
Teletype Group - The Teletype Group consists of ten CV-3510 signal data converter, an
AN/USQ-83(V) data terminal set, four TWK-8/TSEC function remote control units, seven
AN/UGC-143(V)4 teletypewriters, two TSEC sets, and a PP-6521 power supply assembly.
Each TSEC sets consist of two TSEC/KWR-48 comsec devices and a HNF-1/TSEC
interconnecting group.
Link 11 Receive Only Group - The Link 11 Receive Only Group consists of an RD-
3798A(V) UNH recorder/reproducer, an SYM 453 connection box, and an SB-973/SRR
receiver transfer switchboard
Quality Monitoring System Group - The Quality Monitoring System Group consists of an
AT-150/SRC antenna and an AN-SSQ-88 QMS.