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 N9UUO-4 - show graphs
Comment: APRS.FI APP, iPad and or PICOAPRS
Location: 42°43.10' N 87°50.70' W - locator EN62BR82OJ - show map
5.1 km West bearing 260° from Racine, Racine County, Wisconsin, United States [?]
9.8 km Southwest bearing 221° from Wind Point, Racine County, Wisconsin, United States
36.0 km South bearing 172° from Milwaukee, Milwaukee County, Wisconsin, United States
97.8 km North bearing 351° from Chicago, Cook County, Illinois, United States
Last position: 2025-05-17 14:13:13 UTC (8d 9h1m ago)
2025-05-17 09:13:13 CDT local time at Racine, United States [?]
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 185.0 m.
Course: 161°
Speed: 3 km/h
Last path: N9UUO-4>aprs.fi via aprsfi-iOS
Positions stored: 16
Other SSIDs: N9UUO-7
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