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gen. radio monitoring (The systematic listening to, and reporting of, foreign radio transmissions in order to gather intelligence. wikt Alexander Demidov)
mil. radio control; radio monitoring
mil., avia. radio check
radio monitoring (service)
tech. radiomonitoring
радиоконтроль: 17 phrases in 5 subjects
Astronautics7
Mass media2
Military4
Security systems2
Technology2