{"id":84,"date":"2015-02-16T16:00:16","date_gmt":"2015-02-16T16:00:16","guid":{"rendered":"https:\/\/www.pa0esh.com\/?page_id=84"},"modified":"2015-02-18T17:38:57","modified_gmt":"2015-02-18T17:38:57","slug":"aprs","status":"publish","type":"page","link":"https:\/\/www.pa0esh.com\/?page_id=84","title":{"rendered":"APRS"},"content":{"rendered":"<p>Automatic Packet Reporting System<\/p>\n<p>Originally known as &#8220;Automatic Position Reporting System&#8221; but renamed by its creator, APRS is an amateur radio based digital communications system for local, regional, or long-distance (as in the case of HF APRS) tactical, real-time exchange of information among all members of a net, including map based displays for situational awareness. It was developed by Bob Bruninga (WB4APR), who currently works at the United States Naval Academy. He maintains the <a href=\"http:\/\/www.aprs.org\/\" target=\"_blank\">main APRS web page.<\/a><\/p>\n<p>APRS Traffic around the QTH of PA0ESH&#8230;&#8230; LIVE TRAFFIC<\/p>\n<p><script type=\"text\/javascript\">\/\/ <![CDATA[\n        he_width = 800;\n\the_lat = 52.2674;\n\the_lng = 6.7897;\n        he_zoom = 10; \/\/ zoom out a bit\n\the_maptype = 'm'; \/\/ hybrid map\n\t\/\/ select what to show\n\the_show_aprs = 'w'; \/\/ show APRS stations with waypoints\n\the_show_aprs_w = 'p'; \/\/ do not show APRS weather stations\n\the_show_ais = 'p'; \/\/ do not show AIS ships\n \n\/\/ ]]><\/script><br \/>\n<script src=\"https:\/\/aprs.he.fi\/js\/embed.js\" type=\"text\/javascript\">\/\/ <![CDATA[\n \n\/\/ ]]><\/script><\/p>\n<p>APRS is used to transmit real-time information such as messages, bulletins, announcements and the locations of any stations or objects via amateur packet radio protocols. Real-time reporting of station position for mobiles is facilitated using the Global Positioning System. APRS is capable of transmitting a wide variety of data including weather reports, short text messages, radio direction finding bearings, telemetry data, and storm forecasts. These reports can be combined with a computer and mapping software to show the transmitted data superimposed on a variety of map displays.<br \/>\nTechnical Information<\/p>\n<p>In its most widely-used form APRS is transported over the air using the AX.25 protocol at 1200 baud Bell 202 audio frequency-shift keying on frequencies located in the amateur 2-meter band (see Frequencies). An extensive digital repeater, or digipeater network provides transport for APRS packets on these frequencies. Internet gateway stations (IGates) connect the on-air APRS network to the APRS Internet System (APRS-IS), which serves as a worldwide, high-bandwidth backbone for APRS data. Stations can tap into this stream directly. Databases connected to the APRS-IS allow web-based access to the data as well as more advanced data mining capabilities. A number of LEOs (low-earth orbiting satellites) and the International Space Station are also capable of relaying APRS data.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Automatic Packet Reporting System Originally known as &#8220;Automatic Position Reporting System&#8221; but renamed by its creator, APRS is an amateur radio based digital communications system for local, regional, or long-distance<a href=\"https:\/\/www.pa0esh.com\/?page_id=84\" class=\"more-link\">Read More <span class=\"screen-reader-text\">APRS<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-84","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>APRS - PA0ESH<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pa0esh.com\/?page_id=84\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"APRS - PA0ESH\" \/>\n<meta property=\"og:description\" content=\"Automatic Packet Reporting System Originally known as &#8220;Automatic Position Reporting System&#8221; 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