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L1 L-band carrier (1575.42 MHz)
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L2 L-band carrier (1227.6 MHz)
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LAAS local area augmentation system
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LACAC Latin American Civil Aviation Commission
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LADAR laser radar
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LADGPS local area differential GPS
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LAGPS local area global positioning system
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LAHSO land and hold short operation
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LAIRCM large aircraft infrared countermeasures
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LAM levels of avionics maintenance
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LAN local area network
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LAPB link access protocol, balanced
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LASER light amplification by simulated emission of radiation
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LAT latitude
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LBA Luftfahrt-Bundesamt (Germany)
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LCA layered component architecture
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LCC leadless chip carrier
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LCC life cycle cost
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LCC low-cost carrier
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LCD liquid crystal display
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LCF link control field
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LCI logical channel identifier
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LCN local communications network
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LCP lighting control panel
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LCR link connection refusal
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LDA landing directional aid
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LDA laterally displaced approach
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LDCC leaded chip carrier
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LDCS local departure control system
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LDGPS local area differential global positioning satellite
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LDOC long distance operational control
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LDRCL low density radio-communications link
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LDU lamp driver unit
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LE link establish
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LED light-emitting diode
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LEO low earth orbiting
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LF low frequency
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LFE lead-free electronics
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LFR LF radio range
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LGA low gain antenna
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LHP lighting HIRF protection
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LIDAR light detection and ranging
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LIMNATRAN limited North Atlantic regional air navigation
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LINCS long-haul/leased interfacility national airspace communications system
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LISN line impedance stabilization network
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LLC logical link control
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LLWAS low-level wind shear alert system
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LME link management entity
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LMI logical management interface
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LMM locator middle marker
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LMT local mean time
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LNA low-noise amplifier
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LNAV lateral navigation
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LOB left outboard
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LOC localizer/location
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LOM locator outer marker
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LON longitude
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LOPA layout of passenger accommodations
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LORAN long-range air navigation
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LOS line of sight
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LPB loss prevention bulletin
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LPC low pressure compressor
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LPDU link protocol data unit
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LPT low pressure turbine
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LPV localizer performance with vertical guidance
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LRC long-range cruise
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LRM line replaceable module
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LRR long-range radar
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LRU line replaceable unit
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LSAS longitudinal stability augmentation system
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LSB least significant bit
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LSB lower sideband
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LSD least significant digit
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LS-DSAD low speed frame relay service access device
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LS-FRAD low speed frame relay access device
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LSI large scale integration
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LSK line select key
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LSN local subnetwork
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LSP link state PDU
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LSS lightening sensor system
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LTA lighter-than-air
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LTD laser target designator
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LTC lowest two-way channel
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LV lower sideband voice
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LVC low visibility conditions
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LVL level
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LVDT linear voltage differential transducer
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LVP low visibility procedure
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LVPS low voltage power supply
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LVT low volume terminal
