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TM 32-5895-227-14&P
CHAPTER 1
INTRODUCTION
Section I. GENERAL
1-4  ADMINISTRATIVE STORAGE .  Administrative
1-1  SCOPE.  This manual provides operator/crew,
storage will be in accordance with instructions provided
organizational, direct support, and general support
in TM 740-90-1, Administrative Storage of Equipment.
instructions for the installation and maintenance of
Communications Central AN/MSQ-71 (figure 1-1).  A
repair parts list is also included.
1-5  CALIBRATION . No calibration of the equipment
in this group is required.
1-2  MAINTENANCE  FORMS  AND  RECORDS .
Department of the Army forms and procedures used for
1-6  REPORTING  EQUIPMENT  IMPROVEMENT
equipment maintenance will be those prescribed by TM
RECCOMMENDATIONS (EIR's) .  If your AN/MSQ-71
38-750, The Army Maintenance Management System
needs improvement, let us know.  Send us an EIR.
(TAMMS).
You, the user, are the only one who can tell us what you
don't like about your equipment. Let us know why you
1-3  DESTRUCTION  OF  ARMY  MATERIEL  TO
don't like the design. Tell us why a procedure is hard to
PREVENT ENEMY USE.  The AN/MSQ-71 will be
perform.  Put it on an SF 368 (Quality Deficiency
Report). Mail it to us at US Army Electronics Materiel
destroyed to prevent enemy use in accordance with
Readiness Activity, ATTN:  SELEM-ME-F, Vint Hill
instructions provided in TM 750-244-2, Procedures for
Farms Station, Warrenton, Virginia 22186. We'll send
Destruction of Electronics Materiel to Prevent Enemy
you a reply.
Use (Electronics Command).
Section II. DESCRIPTION AND DATA
c.
Radio ReceiverR-390A/URR. Refer to TM
1-7  PURPOSE AND USE.  The AN/MSQ-71 is a
11-5820358-35 for a description of the R-390A/URR.
control center used to detect, monitor, and analyze local
d.
Communications Control Console (CCC)
and remote radio frequency signals.  A local central
OA-7735/G. Refer to figure 3-2. Two CCC's are used in
station and up to 36 remote outstations are combined to
form an operational communications complex of wide-
the central station. The CCC is rack-mounted and has
ranging effectiveness. All activities are coordinated by
109 pushbuttons that are used for intercommunication
the central station.
purposes and for monitor switching.
e.
Intercommunication
Switchboard
SB-
1-8
DESCRIPTION.
2601/G. Refer to figure 3-3. The intercommunication
a.
General. The components in the AN/MSQ-
switchboard is a rack-mounted unit which has 10
71 baseline configuration are listed in tables 1-1 and 1-
pushbutton switches and 10 sets of thumbwheel
2.  Other components, such as the central station
switches.  It is used in the central station to transfer
housing and racks, the central station and outstation
outstations from the CCC to the Radio Intercept Control
Switchboard (RICS) SB-2602/G.
accessories, and antennas (all of which may vary,
f.
Antenna Coupler CU-872A/4U Refer to
depending on overall configurations) are identified in the
typical arrangements shown in figures 1-1 through 1-4.
NAVSHIPS 94490 for a description of the CU-872A/U.
Refer to the station specifications for detailed coverage
g.
Teletypewriter Set AN/TGC-14.  Refer to
of these items.
TM I 15815-206-12 for a description of the AN/TGC-14.
b.
Telephone Set TA-676/G. Refer to figure 3-
h.
Radio Intercept Control Switchboard (RICS)
SB2602/G. Refer to figure 3-4. The RICS is a rack-
(1)
One TA-676/G (STANDARD) is used
mounted  unit  used  in  the  central  station  for
in each outstation.
intercommunication between 10 or less outstations and
(2)
Four TA-676/G's (SPECIAL) are used
the central station.
in the central station. (The CCC button on these sets
has been replaced with a cap.) (3) One TA-676/G
(SUPERVISOR)  is  used  in  the  central  station.
(Amplifier No. 2 on this set has been replaced with a
strap.)
1-1

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