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 W3BIG-9 - show graphs
Mic-E message: Off duty
Location: 39°49.46' N 75°27.11' W - locator FM29GT57SU - show map
8.1 km Northeast bearing 37° from Bellefonte, New Castle County, Delaware, United States [?]
9.2 km Northeast bearing 26° from Edgemoor, New Castle County, Delaware, United States
28.4 km Southwest bearing 240° from Philadelphia, Philadelphia County, Pennsylvania, United States
115.8 km Northeast bearing 59° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-12-31 20:28:36 UTC (1d 21h11m ago)
2025-12-31 15:28:36 EST local time at Bellefonte, United States [?]
Altitude: 104 m
Course:
Speed: 0 km/h
Device: Yaesu: FTM-510D (rig)
Last path: W3BIG-9>SYTY4V via WIDE1-1,WIDE2-1,qAR,K9WK (good)
Positions stored: 1038
Other SSIDs: W3BIG-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