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Inspec keywords: radiotelescopes; ionospheric electromagnetic wave propagation; radioastronomy; radar applications; ionospheric techniques; HF radio propagation; antenna phased arrays
Subjects: Radiowave propagation; Antenna arrays; Radar equipment, systems and applications; Radioastronomical techniques and equipment; Radiotelescopes; Atmospheric, ionospheric and magnetospheric techniques and equipment; Ionospheric electromagnetic wave propagation; Instrumentation and techniques for aeronomy, space physics, and cosmic rays