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| TM 11-5820-890-10-8
5.5b.
Summary of Special Operator Tasks
Transfer COMSEC/FH Data/Sync Time, ANCD to ANCD
SPECIAL TASK 1:
This task is used when individual operators are required to load their
own ANCD with COMSEC keys, FH data, and sync time from one being
specialists or designated NCOs to perform this task for operators. This
task is performed prior to net openings and during periodic ANCD data
updates.
Transfer QREF SOI Information, ANCD to ANCD
SPECIAL TASK 2:
This task is similar to Special Task 1 but differs in the procedure
followed. It is performed prior to net openings and during periodic
ANCD data updates. (Unit SOP determines whether operators,
communications specialists, or designated NCOs are responsible for
the function.)
Perform Cold Start Net Opening
SPECIAL TASK 3:
If an NCS finds it necessary to use the Cold Start method of net
opening, it is essential that operators be trained in this task. This task is
"special" in that it is unlikely the Cold Start net opening procedure will
be used frequently.
Receive Net Update ERF from NCS
SPECIAL TASK 4:
This task is performed when an NCS needs to update some element of
FH data, including sync time, using electronic transfer means. The
normal method of FH data updating is by physical connection of one
ANCD to another. ERF update provides a back-up procedure for
those occasions when electronic transfer is required by the tactical
situation of the unit.
Perform CUE and ERF Method of Late Net Entry
SPECIAL TASK 5:
This task is performed when sync time in the RT becomes, for any
reason, more than one minute different from that of the operational net.
Use of the CUE and ERF method is discouraged because it requires
single channel communication and special action on the part of the
receiving NCS. The Hot Start procedure works equally well, and it does
not involve SC mode or NCS action. (For RT-1523A/B versions, sync
time difference cannot exceed 100 days; for the RT- 1523 version,
difference cannot exceed 60 minutes.)
Conduct Retransmission (RXMT) Operations
SPECIAL TASK 6:
Performance of this task is required when one or more stations of a net
become out of normal SINCGARS operating range or an obstacle
blocks line of sight communications, This is a task that unit scouts, staff
vehicle drivers, and communications specialists should be able to
perform on short notice. The RXMT capability of the SINCGARS radio is
of significant value in various operational situations.
5-43
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