- fan-shaped radiation pattern
- веерообразная диаграмма излучения
Englsh-Russian aviation and space dictionary. - M.: Military publishing house USSR Ministry of Defence. edited by M. Murashkevich. 1974.
fan-shaped radiation pattern
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outer marker — An ILS (instrument landing system) navigational facility in the terminal area navigation system located at 4 to 7 miles (6 to 11 km) from the runway edge on the extended centerline. It transmits a 75 MHz fan shaped radiation pattern, modulated at … Aviation dictionary
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