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 W9TMA-9 - show graphs
Mic-E message: In service
Location: 38°52.95' N 89°23.44' W - locator EM58HV31CT - show map
2.2 km Southeast bearing 119° from Greenville, Bond County, Illinois, United States [?]
27.1 km West bearing 251° from Vandalia, Fayette County, Illinois, United States
75.5 km East bearing 68° from Saint Louis, City of Saint Louis, Missouri, United States
104.4 km South bearing 168° from Springfield, Sangamon County, Illinois, United States
Last position: 2025-01-29 23:59:57 UTC (12d 16h33m ago)
2025-01-29 17:59:57 CST local time at Greenville, United States [?]
Altitude: 169 m
Course: 358°
Speed: 61 km/h
Device: Yaesu: FTM-300D (rig)
Last path: W9TMA-9>S8UR9U via AD9OV-8,WIDE1*,WIDE2-1,qAO,AB9JJ-10 (good)
Positions stored: 299
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