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 K4HCO-10 - show graphs
Comment: 146.520MHz VAQP
Location: 38°54.37' N 77°48.63' W - locator FM18CV27RL - show map
6.1 km Northeast bearing 42° from Marshall, Fauquier County, Virginia, United States [?]
12.9 km West bearing 271° from Bull Run Mountain Estates, Prince William County, Virginia, United States
67.0 km West bearing 271° from Washington, D. C., Washington, D.C., United States
111.8 km West bearing 248° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-03-02 18:45:15 UTC (3d 14h12m ago)
2025-03-02 13:45:15 EST local time at Marshall, United States [?]
Altitude: 161 m
Device: Open Source: APRSdroid (app, Android)
Last path: K4HCO-10>APDR16 via TCPIP*,qAC,T2QUEBEC
Positions stored: 9602
Other SSIDs: K4HCO-9 K4HCO-2
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