Location:	38°38.36' N 77°18.92' W - locator FM18IP23DK - show map 2.0 km West bearing 248° from Potomac Mills, Prince William County, Virginia, United States [?] 5.6 km South bearing 196° from Lake Ridge, Prince William County, Virginia, United States 37.3 km Southwest bearing 220° from Washington, D. C., Washington, D.C., United States 94.5 km Southwest bearing 220° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2026-01-30 17:55:55 UTC (2d 3h15m ago) 2026-01-30 12:55:55 EST local time at Potomac Mills, United States [?]
Device:	Icom: IC-5100 (D-Star)
Last path:	KQ4GWJ>API510 via DSTAR*,qAR,KQ4GEX-C
Positions stored:	1

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.