{"id":9209,"date":"2024-08-21T22:34:34","date_gmt":"2024-08-21T14:34:34","guid":{"rendered":"https:\/\/tommykwan.com\/blog\/?p=9209"},"modified":"2024-08-21T22:45:31","modified_gmt":"2024-08-21T14:45:31","slug":"dme-distance-measure-equipment","status":"publish","type":"post","link":"https:\/\/tommykwan.com\/blog\/aviation\/dme-distance-measure-equipment\/","title":{"rendered":"DME &#8211; Distance Measure Equipment"},"content":{"rendered":"<p>Function of DME?<\/p>\n<ul>\n<li>provide distance information (measure the slant distance between the DME station and aircraft)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Component of DME?<\/p>\n<ul>\n<li>DME ground station (usually combined with VOR)<\/li>\n<li>Aircraft DME unit<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Principle of DME?<\/p>\n<ul>\n<li>DME unit onboard the aircraft, that send out <strong>interrogation signal<\/strong> to ground DME station<\/li>\n<li>Ground DEM station give reply &#8211; send out<strong> response signal<\/strong> to the aircraft<\/li>\n<li>DME unit onboard use algorithm to calculate and interpret the distance information &#8211; Distance = Speed * Time<\/li>\n<\/ul>\n<p>Transmission of\u00a0 signal?<\/p>\n<ul>\n<li>UHF &#8211; 960 \u2013 1215 MHz<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Limitation of DME?<\/p>\n<ul>\n<li>Line of sight restriction<\/li>\n<li>DME itself provide no azimuth (bearing) information<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/08\/DME.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9211\" src=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/08\/DME.png\" alt=\"\" width=\"740\" height=\"543\" srcset=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/08\/DME.png 740w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/08\/DME-300x220.png 300w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/a><\/p>\n<div class=\"embed-container\"><iframe loading=\"lazy\" title=\"What is a Distance Measuring Equipment? | How DME is used to calculate Aircraft Position\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/gDbYVe3HOtQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>Reference:<\/p>\n<p><a href=\"https:\/\/www.faa.gov\/about\/office_org\/headquarters_offices\/ato\/service_units\/techops\/navservices\/gbng\/lpdme\">https:\/\/www.faa.gov\/about\/office_org\/headquarters_offices\/ato\/service_units\/techops\/navservices\/gbng\/lpdme<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Function of DME? provide distance information (measure the slant distance between the DME station and aircraft) &nbsp; Component of DME? DME ground station (usually combined with VOR) Aircraft DME unit &nbsp; Principle of DME? DME unit onboard the aircraft, that send out interrogation signal to ground DME station Ground DEM station give reply &#8211; send<a class=\"read-more \" href=\"https:\/\/tommykwan.com\/blog\/aviation\/dme-distance-measure-equipment\/\" title=\"Read More\"> <span class=\"button default\">Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71,64],"tags":[],"class_list":["post-9209","post","type-post","status-publish","format-standard","hentry","category-agk-instruments","category-aviation"],"_links":{"self":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9209","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/comments?post=9209"}],"version-history":[{"count":8,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9209\/revisions"}],"predecessor-version":[{"id":9219,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9209\/revisions\/9219"}],"wp:attachment":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/media?parent=9209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/categories?post=9209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/tags?post=9209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}