Location:	38°51.46' N 77°22.64' W - locator FM18HU45RU - show map 2.7 km Southeast bearing 131° from Greenbriar, Fairfax County, Virginia, United States [?] 4.9 km Northeast bearing 67° from Centreville, Fairfax County, Virginia, United States 29.8 km West bearing 262° from Washington, D. C., Washington, D.C., United States 81.7 km Southwest bearing 234° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-09-20 14:54:30 UTC (9h49m ago) 2025-09-20 10:54:30 EDT local time at Greenbriar, United States [?]
Course:	0°
Speed:	0 km/h
Last path:	KR4GKQ-1>APN000 via TCPIP*,qAC,T2BC
Positions stored:	3

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.