- directional ionosonde
- пеленгационный ионозонд
Большой англо-русский и русско-английский словарь. 2001.
Большой англо-русский и русско-английский словарь. 2001.
Robert Watson-Watt — Infobox Scientist name = Robert Watson Watt box width = image width =250px caption = birth date = 13 April 1892 birth place = Brechin in Angus, Scotland death date = 5 December 1973 death place = Inverness residence = citizenship = nationality =… … Wikipedia
Radio propagation beacon — A radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on HF, VHF, UHF, and microwave frequencies.… … Wikipedia