TM 11-5820-890-10-3
GLOSSARY
TERM
DEFINITION
battery life
Approximate rating of how much energy a battery can de-
liver before its useful life is finished.
channel
Circuit In RT In which a frequency and/or hopset can be
loaded and stored.
cold start net opening
Method used to Initially open a net.
COMSEC key
Variable used to encrypt/decrypt signals during a secure
operation. COMSEC keys are loaded into the KY-57.
CUE
Used to contact a FH radio net when you are not an active
member of that net. Cue can be used If you are operating
in SC and wish to contact, an FH net.
ECCM
Method of operation used to reduce the effects of
jamming.
Electronic remote fill
Method in which an RT Is loaded with FH data transmitted
(ERF)
by an NCS (net control station) radio; used during cold
start openings and FH data updating.
FH frequency data
Data the RT operates on during frequency hopping;
Includes hopsets, lockout sets, FH sync time and
TRANSEC.
FH sync time
Clock in RT used for timing FH operations. The NCS is the
timekeeper for net RT clocks.
frequency hopping
ECCM method of operation. RT circuits automatically
(FH) operation
change frequencies rapidly.
holding memory
Memory In the RT used when sending, loading or retrieving
FILL data.
hopset
Group of frequencies upon which RT hops.
line-of-sight (LOS)
During operation, radio antennas MUST be able to be seen
by each other for good communication. The path between
the radio antennas is referred to as LOS.
lockout set
Data which prevents transmsission/reception on particular
frequencies; used for FH by all RT using the hopset that
needs the lockout set (may not be needed for some hop-
sets).
master radio
Radio In a FH radio net which is operated in FH-M mode;
normally operated by the NCS.
member radio
Any radio In a FH radio net that is not the master radio.
E-5
