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 KC8FDU-4 - show graphs
Comment: MOQP 14.066
Location: 38°30.00' N 90°10.00' W - locator EM48VM90XA - show map
4.2 km Southeast bearing 115° from Dupo, Saint Clair County, Illinois, United States [?]
6.9 km Northeast bearing 26° from Columbia, Monroe County, Illinois, United States
14.4 km South bearing 169° from Saint Louis, City of Saint Louis, Missouri, United States
57.7 km Southeast bearing 127° from O'Fallon, Saint Charles County, Missouri, United States
Last position: 2025-03-10 14:11:54 UTC (87d 2h50m ago)
2025-03-10 09:11:54 CDT local time at Dupo, United States [?]
Position ambiguous: Precision reduced at transmitter by 3 digits, position resolution approximately 18.5 km.
Speed: 0 km/h
Last path: KC8FDU-4>aprs.fi via aprsfi-iOS
Positions stored: 1
Other SSIDs: KC8FDU-9 KC8FDU KC8FDU-i
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