middle marker

[′mid·əl ′märk·ər] (navigation) That instrument-landing-system marker between the outer and inner markers.

middle marker

An ILS (instrument landing system) navigation facility in the terminal area navigation system located approximately 3500 ft from the runway approach end on the extended centerline, transmitting a 75 MHz fan-shaped radiation pattern, modulated at 1300 Hz. It is keyed alternately dot and dash and received by compatible airborne equipment, indicating to the pilot both aurally and visually, that he or she is passing over the facility. The middle marker is located at or near the point of decision height for ILS Cat I. See marker beacon.

单词	middle marker
释义	middle marker middle marker [′mid·əl ′märk·ər] (navigation) That instrument-landing-system marker between the outer and inner markers. middle marker An ILS (instrument landing system) navigation facility in the terminal area navigation system located approximately 3500 ft from the runway approach end on the extended centerline, transmitting a 75 MHz fan-shaped radiation pattern, modulated at 1300 Hz. It is keyed alternately dot and dash and received by compatible airborne equipment, indicating to the pilot both aurally and visually, that he or she is passing over the facility. The middle marker is located at or near the point of decision height for ILS Cat I. See marker beacon. AcronymsSeemultimode
随便看	native hawaiians native hen native holly native host interface native human thyroid peroxidase native immunity native indian/inuit photographers' association native indian teacher education program native indigo native input output native inspection services initiative native instruments elektrik piano native international committee for information technology standards native ip forwarding native irish native iron native island business and community affairs association native islander gullah celebration native joint venture corporation native labor company native land native land husbandry act of 1951 native land trust act native land trust board native language