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 W3CUM-8 - show graphs
Comment: Romeo 13
Location: 38°52.88' N 77°43.53' W - locator FM18DV21WM - show map
6.1 km Southwest bearing 246° from Bull Run Mountain Estates, Prince William County, Virginia, United States [?]
10.9 km Northwest bearing 315° from Haymarket, Prince William County, Virginia, United States
59.6 km West bearing 269° from Washington, D. C., Washington, D.C., United States
106.2 km Southwest bearing 245° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2024-09-07 16:23:56 UTC (157d 7h38m ago)
2024-09-07 12:23:56 EDT local time at Bull Run Mountain Estates, United States [?]
Course: 196°
Speed: 31 km/h
Last path: W3CUM-8>aprs.fi via aprsfi-iOS
Positions stored: 7
Other SSIDs: w3cum-9
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