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*
Web station K9ZZZ-i - show graphs
Comment: aprs.fi iOS
Location: 43°24.21' N 90°18.51' W - locator EN43UJ26XU - show map
9.9 km Northeast bearing 40° from Richland Center, Richland County, Wisconsin, United States [?]
26.6 km Northeast bearing 24° from Muscoda, Grant County, Wisconsin, United States
82.1 km Northwest bearing 297° from Madison, Dane County, Wisconsin, United States
131.9 km Northwest bearing 308° from Janesville, Rock County, Wisconsin, United States
Last position: 2025-07-05 11:52:04 UTC (23d 10h21m ago)
2025-07-05 06:52:04 CDT local time at Richland Center, United States [?]
Course: 31°
Speed: 1 km/h
Last path: >aprs.fi via aprsfi-iOS
Positions stored: 7
Other SSIDs: K9ZZZ-9 K9ZZZ-3
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