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 TM 11-5895-1847-12&P
OPERATOR AND UNIT MAINTENANCE
LCU 2000 GLOBAL MARITIME DISTRESS AND SAFETY SYSTEM
OPERATION UNDER USUAL CONDITIONS
INITIAL SETUP:
Personnel Required
Seaman 88K
PERFORM AN/PSN-11(V)1 PLGR CRYPTO VARIABLE OPERATIONS
CRYPTO KEY ENTRY USING THE KYK-13
WARNING
Without crypto keys, the user cannot compensate for the selective availability errors
(SA). The user cannot receive encrypted signals and have no protection against
spoofing. The receiver will still operate but cannot be used for combat operations.
All shipboard PLGR's must be keyed using the correct crypto key prior to combat
operations. Failure to observe these precautions could result in loss of life.
NOTE
The PLGR has a National Security Agency (NSA) module that stores the crypto keys. Since
the crypto keys are stored in this tamper proof module (called a precise positioning service
security module, or PPS-SM), the PLGR is not classified when crypto keys are installed.
After turn on, the operator can easily determine if crypto keys are installed. Select menu
second page. If crypto is not displayed on line 4, crypto keys are not installed or
are not valid.
The PPS-SM does not protect classified waypoints. When classified waypoints are stored
in the PLGR, the PLGR is classified at the same level as the waypoints.
1.
Connect the KYK-13 to the J1 port (10) on the PLGR. Ensure that the PLGR is turned on and not performing
a self-test.
0029 00 1
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