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Back to: "M"middle marker
- Definição1
- A marker beacon that defines a point along the glideslope of an ILS normally located at or near the point of decision height (ILS Category I). It is keyed to transmit alternate dots and dashes, with the alternate dots and dashes keyed at the rate of 95 dot/dash combinations per minute on a 1300 Hz tone, which is received aurally and visually by compatible airborne equipment.
- Fonte1
- FEDERAL AVIATION ADMINISTRATION. Pilot/controller glossary (P/CG). 2014. Disponível em: https://www.faa.gov/air_traffic/publications/atpubs/pcg/inde x.htm. Acesso em: 10 jun. 2014.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Handbook on radio frequency spectrum requirements for civil aviation. 1st ed. Montreal, 2014. (Doc. 9718)
- Nota adicional1
- Information regarding this term is a result of researches developed by DECEA in cooperation with ANAC.
- Nota adicional2
- Acronym in English: MM.
- Contexto
- The glide path projection angle is normally adjusted to 3 degrees above the horizontal plane so that it passes through the middle marker at about 60 m (200 ft) and the outer marker at about 426 m (1 400 ft) above the runway elevation.
- Subárea
- Airport Infrastructure
- Related Term
- inner marker
- Spanish
- radiobaliza intermedia