TM ll-5895-1412-12&P
REFERENCE INFORMATION (CONT’D)
GLOSSARY OF COMSEC AND CEOI TERMS
ALTERNATE NET - The net used when the primary net communications cannot be
maintained due to jamming or interference.
AUTHENTICATION - A security measure designed to protect a communications
system against acceptance of a fraudulent transmission or simulation by
establishing the validity of a transmission, message or originator.
AUTHENTICATION SYSTEM - Authentication systems are provided to prevent
unauthorized stations from entering friendly radio nets. There are two
methods of authentication: challenge and reply and transmission
authentication.
BATTLEFIELD ELECTRONIC CEOI SYSTEM (BECS) - System includes the BGU and its
peripherals.
The purpose of BECS is to eliminate NSA-produced paper CEOI
systems, to reduce response time and to increase user’s flexibility.
BASIC GENERATION UNIT (BGU) - The personal computer (Hewlett-Packard HP-
110/111) component of BECS, plus the peripheral devices: the disk drive and
printer.
CALL SIGN - A three-character combination of letter-number-letter used to
identify a command, activity unit or element in establishing and maintaining
communications.
CALL SIGN SHARING - Allows different nets to be assigned the same call signs
for each time period.
CLASS - A grouping of up to 20 zones.
The total frequency requirement for a
class equals the number of nets in the largest zone. Nets selected for a
reuse plan are grouped into zones and classes.
COMMUNICATIONS-ELECTRONICS (CE) - Embraces the design, development,
installation, operation, and maintenance of electronics and electromechanical
systems associated with the collecting, transmitting, storing, processing,
recording, and displaying of data and information associated with all forms of
military communications.
COMMUNICATIONS-ELECTRONICS OPERATION INSTRUCTIONS (CEOI) - A series of orders
issued for technical control and coordination of the Communications
Electronics operations of a command or activity. It provides guidance needed
to insure the speed, simplicity, and security of communications. The CEOI
normally contains call sign assignments, frequency assignments, suffixes,
signs and countersigns, pyrotechnic and smoke signals, and complete
supplemental instructions.
COMMUNICATIONS SECURITY (COMSEC) - Measures taken to prevent unauthorized
persons from gaining information of value from your communication. COMSEC
includes: (l)crypto-security; and (2)transmission security; and (3)emission
security; and (4)physical security of communications security materials and
information.
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