Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station KC9JVN-9 - show graphs
Mic-E message: En route
Location: 43°02.12' N 89°25.43' W - locator EN53GA98DL - show map
4.6 km Southwest bearing 204° from Madison, Dane County, Wisconsin, United States [?]
5.0 km South bearing 159° from Shorewood Hills, Dane County, Wisconsin, United States
9.5 km Southeast bearing 136° from Middleton, Dane County, Wisconsin, United States
89.1 km North bearing 343° from Rockford, Winnebago County, Illinois, United States
Last position: 2026-01-20 02:28:52 UTC (18d 2h43m ago)
2026-01-19 20:28:52 CST local time at Madison, United States [?]
Altitude: 274 m
Course: 272°
Speed: 102 km/h
Last path: KC9JVN-9>TS0R1R-2 via WIDE1-1,WIDE2-2,qAO,KD9DOE-10 (good)
Positions stored: 16152
About this site
This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS