{"id":14530,"date":"2025-06-07T16:32:55","date_gmt":"2025-06-07T11:02:55","guid":{"rendered":"https:\/\/ibexaviation.com\/pilot-training\/?p=14530"},"modified":"2026-07-26T09:58:22","modified_gmt":"2026-07-26T04:28:22","slug":"ground-based-radar","status":"publish","type":"post","link":"https:\/\/ibexaviation.com\/pilot-training\/ground-based-radar\/","title":{"rendered":"Ground Based Radar"},"content":{"rendered":"<p> <img decoding=\"async\" src=\"https:\/\/ibexaviation.com\/page-show\/radio-navigation\/r11-ground-radar-1.jpg\" alt=\"\" loading=\"lazy\"\/><\/p>\n<h2>Ground Radars used for Aircraft Tracking<\/h2>\n<p>Ground-based radars are radar systems installed at airports or air traffic control stations to monitor aircraft. They detect and track aircraft positions, speed, and altitude to ensure safe and efficient air traffic management. These radars help controllers during take-off, landing, en-route flight and in poor weather conditions.<\/p>\n<h3>Types of Primary Ground Radars<\/h3>\n<p> <img decoding=\"async\" src=\"https:\/\/ibexaviation.com\/page-show\/radio-navigation\/r11-ground-radar-2.jpg\" alt=\"\" loading=\"lazy\"\/><\/p>\n<ul>\n<li>Ground-based Primary Radars are used for Air Traffic Control (ATC) surveillance.<\/li>\n<li>The main types of Primary Ground Radars are:<\/li>\n<ul>\n<li><strong>Area Surveillance Radar (RSR)<\/strong><\/li>\n<li><strong>En-route Surveillance Radar<\/strong> (same as RSR)<\/li>\n<li><strong>Terminal Surveillance Radar (TSR)<\/strong><\/li>\n<li><strong>Aerodrome Surveillance Radar (ASR)<\/strong><\/li>\n<li><strong>Precision Approach Radar (PAR)<\/strong><\/li>\n<li><strong>Aerodrome Surface Detection Equipment (ADSE)<\/strong><\/li>\n<li><strong>Airport Surface Movement Radar<\/strong> (same as ASDE)<\/li>\n<\/ul>\n<\/ul>\n<h3>Area (En-route) Surveillance Radar (RSR)<\/h3>\n<p> <img decoding=\"async\" src=\"https:\/\/ibexaviation.com\/page-show\/radio-navigation\/r11-ground-radar-3.jpg\" alt=\"\" loading=\"lazy\"\/><\/p>\n<ul>\n<li>Area Surveillance Radars are long-range surveillance radars.<\/li>\n<li>They are used by the <strong>Area Control Centre (ACC)<\/strong> for monitoring aircraft along air routes.<\/li>\n<li><strong>Frequency:<\/strong> 600 \u2013 3000 MHz<\/li>\n<li><strong>Wavelength:<\/strong> 10 \u2013 50 cm<\/li>\n<li><strong>Pulse Recurrence Frequency (PRF):<\/strong> 250 pulses per second<\/li>\n<li><strong>Pulse Length:<\/strong> 2 \u2013 4 microseconds<\/li>\n<li><strong>Antenna Rotation Rate:<\/strong> 5 revolutions per minute (RPM)<\/li>\n<li><strong>Maximum Range:<\/strong> 200 \u2013 300 NM<\/li>\n<\/ul>\n<h3>Terminal Surveillance Radar (TSR)<\/h3>\n<p> <img decoding=\"async\" src=\"https:\/\/ibexaviation.com\/page-show\/radio-navigation\/r11-ground-radar-4.jpg\" alt=\"\" loading=\"lazy\"\/><\/p>\n<ul>\n<li>Terminal Surveillance Radars are medium-range surveillance radars.<\/li>\n<li>They are used to maintain aircraft separation within the <strong>Terminal Control Area (TMA)<\/strong>.<\/li>\n<li><strong>Frequency:<\/strong> 600 \u2013 3000 MHz<\/li>\n<li><strong>Wavelength:<\/strong> 10 \u2013 50 cm<\/li>\n<li><strong>Pulse Recurrence Frequency (PRF):<\/strong> 500 pulses per second<\/li>\n<li><strong>Pulse Length:<\/strong> 1.5 \u2013 2 microseconds<\/li>\n<li><strong>Antenna Rotation Rate:<\/strong> 15 revolutions per minute (RPM)<\/li>\n<li><strong>Maximum Range:<\/strong> 75 \u2013 100 NM<\/li>\n<\/ul>\n<h3>Aerodrome Surveillance Radar (ASR \/ SRE)<\/h3>\n<p> <img decoding=\"async\" src=\"https:\/\/ibexaviation.com\/page-show\/radio-navigation\/r11-ground-radar-5.jpg\" alt=\"\" loading=\"lazy\"\/><\/p>\n<ul>\n<li>Aerodrome Surveillance Radar is also known as <strong>Surveillance Radar Equipment (SRE)<\/strong>.<\/li>\n<li>SRE is a short-range radar used by Approach Control.<\/li>\n<li>It provides vectors to aircraft during approach when required.<\/li>\n<li>It monitors aircraft until they are established on the ILS Localiser.<\/li>\n<li><strong>Frequency:<\/strong> 10 GHz<\/li>\n<li><strong>Wavelength:<\/strong> 10 \u2013 50 cm<\/li>\n<li><strong>Pulse Recurrence Frequency (PRF):<\/strong> 1000 \u2013 2000 pulses per second<\/li>\n<li><strong>Pulse Length:<\/strong> 0.5 \u2013 0.8 microseconds<\/li>\n<li><strong>Antenna Rotation Rate:<\/strong> 30 revolutions per minute (RPM)<\/li>\n<li><strong>Maximum Range:<\/strong> Approximately 25 NM (20 \u2013 30 NM)<\/li>\n<\/ul>\n<h3>Precision Approach Radar (PAR)<\/h3>\n<p> <img decoding=\"async\" src=\"https:\/\/ibexaviation.com\/page-show\/radio-navigation\/r11-ground-radar-6.jpg\" alt=\"\" loading=\"lazy\"\/><\/p>\n<ul>\n<li>Precision Approach Radar is a very short-range radar system.<\/li>\n<li>It provides precision approach guidance mainly at military airfields.<\/li>\n<li>PAR consists of two radar systems combined to provide:<\/li>\n<ul>\n<li>Azimuth guidance.<\/li>\n<li>Elevation guidance.<\/li>\n<\/ul>\n<li>It provides continuous &#8220;talk down&#8221; instructions until touchdown.<\/li>\n<li><strong>Frequency:<\/strong> 10 GHz<\/li>\n<li><strong>Wavelength:<\/strong> 10 \u2013 50 cm<\/li>\n<li><strong>Pulse Recurrence Frequency (PRF):<\/strong> More than 1000 pulses per second<\/li>\n<li><strong>Pulse Length:<\/strong> 0.5 \u2013 0.8 microseconds<\/li>\n<li><strong>Antenna Rotation Rate:<\/strong> Sector scanning at approximately 120 scans per minute<\/li>\n<li><strong>Maximum Range:<\/strong> Less than 25 NM<\/li>\n<\/ul>\n<h3>Airport Surface Detection Equipment (ASDE)<\/h3>\n<p> <img decoding=\"async\" src=\"https:\/\/ibexaviation.com\/page-show\/radio-navigation\/r11-ground-radar-7.jpg\" alt=\"\" loading=\"lazy\"\/><\/p>\n<ul>\n<li>Airport Surface Movement Radar, Airfield Surface Movement Indicator, and Aerodrome Surface Detection Equipment are systems used for monitoring airport surfaces.<\/li>\n<li>ASDE provides the position of aircraft and vehicles operating on the ground.<\/li>\n<li>It uses a very narrow beam width to provide high-resolution ground movement information.<\/li>\n<li><strong>Frequency:<\/strong> 15 \u2013 17 GHz<\/li>\n<li><strong>Wavelength:<\/strong> Approximately 2 cm<\/li>\n<li><strong>Pulse Recurrence Frequency (PRF):<\/strong> More than 10,000 pulses per second<\/li>\n<li><strong>Pulse Length:<\/strong> 0.03 microseconds (1\/300 microseconds)<\/li>\n<li><strong>Antenna Rotation Rate:<\/strong> 60 revolutions per minute (RPM)<\/li>\n<li><strong>Maximum Range:<\/strong> Less than 5 NM<\/li>\n<\/ul>\n<h3>Ground Radar Summary<\/h3>\n<p> <img decoding=\"async\" src=\"https:\/\/ibexaviation.com\/page-show\/radio-navigation\/r11-ground-radar-8.jpg\" alt=\"\" loading=\"lazy\"\/><\/p>\n<ul>\n<li><strong>PRF<\/strong> \u2013 Pulse Recurrence Frequency<\/li>\n<li><strong>PW<\/strong> \u2013 Pulse Width<\/li>\n<li><strong>ARR<\/strong> \u2013 Antenna Rotation Rate<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Ground Radars used for Aircraft Tracking Ground-based radars are radar systems installed at airports or air traffic control stations to monitor aircraft. They detect and track aircraft positions, speed, and altitude to ensure safe and efficient air traffic management. These radars help controllers during take-off, landing, en-route flight and in poor weather conditions. Types of Primary Ground Radars Ground-based Primary Radars are used for Air Traffic Control (ATC) surveillance. The main types of Primary Ground Radars are: Area Surveillance Radar (RSR) En-route Surveillance Radar (same as RSR) Terminal Surveillance Radar&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"disable_featured_image":false,"footnotes":""},"categories":[326],"tags":[],"class_list":["post-14530","post","type-post","status-publish","format-standard","hentry","category-cpl-atpl-radio-navigation"],"_links":{"self":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/posts\/14530","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/comments?post=14530"}],"version-history":[{"count":2,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/posts\/14530\/revisions"}],"predecessor-version":[{"id":16605,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/posts\/14530\/revisions\/16605"}],"wp:attachment":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/media?parent=14530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/categories?post=14530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/tags?post=14530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}