Location:	38°37.72' N 77°21.13' W - locator FM18HP70RV - show map 5.4 km West bearing 249° from Potomac Mills, Prince William County, Virginia, United States [?] 8.1 km Southwest bearing 216° from Lake Ridge, Prince William County, Virginia, United States 40.3 km Southwest bearing 223° from Washington, D. C., Washington, D.C., United States 97.4 km Southwest bearing 221° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-11-16 21:38:45 UTC (77d 5h42m ago) 2025-11-16 16:38:45 EST local time at Potomac Mills, United States [?]
Last path:	KV4MJ-7>APN000 via TCPIP*,qAC,T2RDU
Positions stored:	16

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.