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Line 2: ==Method== A [[Modulation Depth Comparison Navigational Aid]] (MDCNA), also known as an Instrument Landing System uses the concept of [[space modulation]] to provide guidance to aircraft when on final approach. A [[Carrier]] and [[Sideband]] CSB, and Sideband Only [[Double-sideband_suppressed-carrier_transmission\|SBO]] signal, transmitted from [[Localizer]] and [[Glidepath]] antennas produce a space modulated signal resulting from the vectorial addition of two or more audio signals that vary according to position of the receiving aircraft. Line 14: [[Instrument Landing System]] [[Amplitude Modulation]] [[Space Modulation]] [[Radio navigation]] *[[International Civil Aviation Organisation\|ICAO]]

Difference in the depth of modulation: Difference between revisions