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Appendix I Glossary | Up
Electronics Technician Volume 4-Radar Systems | Next
Appendix I Glossary |
FM— Frequency modulation.
FRUIT— Nonsynchronous transponder replies that
interfere with IFF video.
FTC— Fast time constant.
GCA— Ground controlled approach.
GPETE— General-pufpose electronic test equipment.
HDC— Helicopter direction center.
HERF— Hazards of electromagnetic radiation to fuel.
HERO— Hazards of electromagnetic radiation to
ordnance.
HERP— Hazards of electromagnetic radiation to
personnel.
I/O— Input/output.
IADT— Integrated Automatic Detection and Tracking
System.
IF— Intermediate frequency.
IFF— Identification friend or foe.
IMA— Intermediate maintenance activity.
IS— Interference suppression.
LSLS— Intemogator side lobe suppression.
ITAWDS— Integrated Tactical Amphibious Warfare
Data System.
KCMX— Keyset central multiplexer.
LED— Light-emitting diodes.
LOS— Line of sight.
LRM— Long range mode.
LRU— Lowest replaceable unit.
LSO— Landing signal officer.
MAM— Maintenance assist module.
MATCS— Marine air traffic control squadrons.
MCAS— Marine Corps air station.
MFC— Manual frequency control.
MLV— Memory loader/verifier.
MOB— Mobility.
MOISTURE LAPSE— A falling away from the
standard moisture content of the air.
MOTU— Mobile technical unit.
MPPI— Maintenance planned position indicator.
MPU— Medium PRF upgrade.
MRC— Maintenance requirement card.
MTBF— Mean time between failures.
MTI— Moving target indicator.
MTTR— Mean time to repair.
MTU— Magnetic tape unit.
MUTE— Shipboard Emission Monitor-Control Set,
AN/SSQ-82(V).
NAS— Naval air station.
NAVSEA— Naval Systems Engineering Activity.
NAVSEACEN— Naval Systems Engineering Activity
Center.
NEC— Navy Enlisted Classifications.
NEETS— Navy Electricity and Electronics Training
Series.
NTDS— Navy Tactical Data System.
OCC— Operator control console.
OOD— Officer of the deck.
PA— Power amplifier.
PALS— Precision Approach Landing System.
PAR— Precision approach radar.
PCB— Printed circuit board.
PM— Planned/preventive maintenance.
PMS— Planned Maintenance System.
PPI— Planned position indicator.
PRF— Pulse repetition frequency, also referred to as
pulse repetition rate (PRR).
PRI-FLI— Primary flight.
PRR— Pulse repetition rate, also referred to as pulse
repetition frequency (PRF).
R/T— Receiver/transmitter.
RADDS— Radar Display and Distribution Systems.
RADHAZ— Radiation hazard.
RATCF DAIR— Radar Air Traffic Control Facility
DAIR system uses the AN/TPX-42A(V)10 and is
known as a type 10 system.
RF— Radio Frequency.
RFI— Radio frequency interference.
AI-2
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