{"id":412,"date":"2018-06-23T19:08:52","date_gmt":"2018-06-23T23:08:52","guid":{"rendered":"http:\/\/www.summersidearc.com:8000\/?page_id=412"},"modified":"2018-06-29T22:00:11","modified_gmt":"2018-06-30T01:00:11","slug":"aprs","status":"publish","type":"page","link":"http:\/\/www.summersidearc.com\/index.php\/aprs\/","title":{"rendered":"APRS"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.summersidearc.com\/wp-content\/uploads\/2018\/06\/APRS_logo.gif\" alt=\"\" width=\"200\" height=\"100\" class=\"aligncenter size-full wp-image-416\" \/><br \/>\n<strong>Automatic Position Reporting System<\/strong><br \/>\nAPRS is an amateur radio based digital communications system for local, tactical, real-time exchange of information among all members of a net, including map based displays for stiuational awareness. It was developed by Bob Bruninga, WB4APR\u221e, who currently works at the United States Naval Academy.<\/p>\n<p><strong>Capabilities<\/strong><br \/>\nAPRS 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.<\/p>\n<p><strong>Technical Information<\/strong><br \/>\nIn 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 (i-Gates) 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 low-earth orbiting satellites and the International Space Station are capable of relaying APRS data.<\/p>\n<p>To see a person&#8217;s position please enter their callsign in place of the xxxxxx&#8217;s and add an asterisk at the end to catch all the SSID&#8217;s.<\/p>\n<p>http:\/\/www.aprs.fi\/?call=xxxxxx*<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Automatic Position Reporting System APRS is an amateur radio based digital communications system for local, tactical, real-time exchange of information among all members of a net, including map based displays for stiuational awareness. It was developed by Bob Bruninga, WB4APR\u221e, <a href=\"http:\/\/www.summersidearc.com\/index.php\/aprs\/\" class=\"read-more\">Read more\u2026 <\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-412","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/pages\/412","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/comments?post=412"}],"version-history":[{"count":10,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/pages\/412\/revisions"}],"predecessor-version":[{"id":435,"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/pages\/412\/revisions\/435"}],"wp:attachment":[{"href":"http:\/\/www.summersidearc.com\/index.php\/wp-json\/wp\/v2\/media?parent=412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}