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Abbreviations
ATIS
Automatic terminal information service
ATM
Air traffic management
Att.
Attenuator
AV
Aerial vehicle
BCRS
Broadcasting radio stations
BM
Balanced modulator
BRC
Back-reflection coefficient
BSD
Backscattering diagram
C
Compensator
CCD
Coherent change detection
Circ
Circulator
CLO
Coherent local oscillator
CO
Coherent oscillator
COG
Course over ground
COLREG
International Regulations for Preventing Collisions at Sea
CONV
Converter
Cr. Ready
Course readiness
CRS
Coherent radar station
CRT
Cathode-ray tube
CS
Commercial service
CTrm
Coherent transmitter
CU
Control unit
CuMa
Clutter map
DAPP
Controllers of approach points
DAP
Digital autopilot
DC
Direct current
DCI
Distance to course intersection
DCU
Digital control unit
DF
Doppler frequency
DGNSS
Differential global navigation satellite system
DME
Distance measuring equipment
DME-P
Precise distance-measuring equipment
DMU
Device matching unit
DOP
Dilution of precision
DP
Directional pattern
DPC
Dispatching points of the circle
DPLS
Dispatching points of landing system
DPU
Digital processing unit
DSA
Distance of shortest approach
DSDM
Doppler speed and drift angle meters
DSU
Digital synthesis unit
DU
Display unit
DVOR
Doppler very-high-frequency Omnidirectional Range
DWRS
Doppler weather radar system
EBL
Electronic bearing lines