Location:	38°46.65' N 77°05.55' W - locator FM18KS86VO - show map 1.3 km Northwest bearing 329° from Groveton, Fairfax County, Virginia, United States [?] 2.2 km Southeast bearing 125° from Rose Hill, Fairfax County, Virginia, United States 13.9 km South bearing 200° from Washington, D. C., Washington, D.C., United States 70.5 km Southwest bearing 216° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-12-18 21:31:17 UTC (8d 20h18m ago) 2025-12-18 16:31:17 EST local time at Groveton, United States [?]
Altitude:	-28 m
Course:	136°
Speed:	28 km/h
Device:	Icom: IC-5100 (D-Star)
Last path:	KA4GFY-9>API510 via DSTAR*,qAR,NV4FM-C
Positions stored:	117
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.