Location:	38°47.87' N 77°04.83' W - locator FM18LT01IL - show map 3.0 km East bearing 70° from Rose Hill, Fairfax County, Virginia, United States [?] 5.9 km Southeast bearing 113° from Lincolnia, Fairfax County, Virginia, United States 11.5 km South bearing 199° from Washington, D. C., Washington, D.C., United States 68.0 km Southwest bearing 217° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2026-01-19 23:32:04 UTC (9d 16h5m ago) 2026-01-19 18:32:04 EST local time at Rose Hill, United States [?]
Altitude:	3 m
Course:	209°
Speed:	2 km/h
Device:	Icom: IC-5100 (D-Star)
Last path:	KA4GFY-9>API510 via DSTAR*,qAR,NV4FM-C
Positions stored:	118
Other SSIDs:	KA4GFY-8

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.