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[[Image:APRS_logo.gif|APRS Logo|right]]
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== Topics ==
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{|
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* [[Introductions]]
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* [[UpcomingEvents|Upcoming Events]]
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* [[Hardware]]
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* [[Software]]
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* [[Weather]]
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* [[Paths|Path Settings]]
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* [[Frequencies]]
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* [[InternetSystem|APRS Internet System (APRS-IS)]]
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* [[Protocol]]
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* [[Applications|APRS Uses]]
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* [[Digipeater]]
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* [[IGate]]
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* [[RelatedSystems|Related Systems]]
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* [[ToCall|ToCall Strings]]
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* [[Symbol configuration]]
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* [[Glossary]]
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* [[Organizations]]
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* [http://www.aprs.org/txt/aprs-arrl-coords.txt Regional Coordinators]
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* [[Satellites]]
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* [[History]]
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* [[WikiUsage Contributing to this Wiki]]
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* [[RegionalPages|Regional Info Pages]]
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* [[Manuals]]
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|}
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== Automatic Packet Reporting System ==
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Originally known as "Automatic Position Reporting System" 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 main [[http://www.aprs.org APRS web page]].
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=== Capabilities ===
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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.
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=== Technical Information ===
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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|digipeater]] network provides transport for APRS packets on these frequencies. Internet gateway stations ([[IGate|IGates]]) connect the on-air APRS network to the APRS Internet System ([[InternetSystem|APRS-IS]]), which serves as a worldwide, high-bandwidth backbone for APRS data. Stations can tap into this stream directly.  [[APRSIsDatabases|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.
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===External links===
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*[[http://www.ui-view.org UI-View]] Official UI-View32 Web Site
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*[[http://www.aprstv.com APRSTV]] APRS related video podcast.
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*[[http://www.aprs.org/ WB4APR web site]]
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*[[http://www.findu.com www.findu.com]] Web-based access to worldwide APRS real-time data
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*[[http://www.openaprs.net OpenAPRS]] Web-based APRS real-time data using Google Earth Maps
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*[[http://aprs.fi aprs.fi]] Web-based APRS view using Google Maps and Earth, updates automatically in real-time, 14 languages
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*[[http://aprs.va3tk.com VA3TK's APRS Server]] Canadian Web-based APRS Server
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*[[http://f5vag.eu F5VAG's APRS Server]] French Web-based APRS Server
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*[[http://www.APRSworld.net APRS World]] Open Source web-based APRS database
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*[[http://www.tapr.org/aprs_working_group.html APRS Specification]] Official APRS specification document
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*[[http://www.nwaprs.info Pacific Northwest APRS Homepage]]
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*[[http://www.wulfden.org/APRSQuery.shtml APRS Query Page]] N1BQ's HTML Forms based front end to the FINDU database
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*[[http://www.cwop.net www.cwop.net]] APRSWXNET/Citizen Weather Observer Program (CWOP)
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*[[http://groups.yahoo.com/group/javaprssrvr/ JavAPRSSrvr Yahoo Group]] This group is for users of the APRS-IS server software, javAPRSSrvr.
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*[[http://groups.yahoo.com/group/uidigi/ UIDigi Yahoo Group]] A replacement for TNC2 firmware to upgrade older TNC's to APRS.
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*[[http://www.jfindu.net/ JFindu.net]] Web-based access to worldwide APRS real-time data.
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*[[http://aprsearch.net/ APRS Search]] An APRS Search Engine.
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*[[http://www.db0anf.de/app/aprs/ DB0ANF]] APRS-IS Data Base Lookup Server shows individual stats on any given call sign.
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*[[http://www.nashvilleaprs.net/apps/phgcalc.php PHG Calc]] Online PHG (Power Height Gain) Calculator.
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*[[http://www.aprs2.net/ Tier 2 Network]] Tier 2 APRS-IS Servers Group
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*[[http://www.aprs.com.ar APRS Argentina ]] Argentinian APRS Group (Spanish)
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*[[http://ar.groups.yahoo.com/group/LU-APRS/ LU-APRS]] APRS Argentina Forum (Spanish)
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*[[http://www.aprs.com.ar/mirate/intro.html Mira-T]] javAPRS powered APRS stations search engine (Spanish)
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*[[http://www.aprs.net.au APRS Australia]] Australian APRS Web Site, References
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*[[http://aprs.od5.org APRS Middle East]] Middle Eastern APRS Web Site, Currently Lebanon only
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*[[http://zlhams.wikidot.com ZLHAMS Wiki]] includes New Zealand APRS wiki pages
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*[[http://www.ohioaprs.net OhioAPRS]] Northeast Ohio APRS
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*[[http://www.findu.com/cgi-bin/emergency.cgi Emergency Beacons]] Help those that need help, even those that test.
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*[[http://www.aprsfl.net APRSfl]] Details & Stats on West Central Florida APRS, UI-View Webserver Lookups, our Tier 2 APRS-IS Server.
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*[[http://www.w8kvk.com/aprs OhioAPRS]] Southeast Ohio APRS Development
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*[[http://japrsx.com JAPRSX]] JapanAPRSeXperiment, Web & BBS for Beginners.(Japanese)
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*[[http://aprs.qrz.ru/ APRS.qrz.ru]] APRS in Russia
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====== External links ======
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[http://en.wikipedia.org Wikipedia]

Revision as of 19:51, 8 May 2011

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