Location:	38°53.15' N 77°19.27' W - locator FM18IV12LO - show map 8.2 km Southeast bearing 123° from Oak Hill, Fairfax County, Virginia, United States [?] 9.6 km East bearing 96° from Chantilly, Fairfax County, Virginia, United States 24.7 km West bearing 268° from Washington, D. C., Washington, D.C., United States 75.9 km Southwest bearing 234° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-12-17 00:12:28 UTC (43d 20h28m ago) 2025-12-16 19:12:28 EST local time at Oak Hill, United States [?]
Altitude:	70 m
Course:	355°
Speed:	2 km/h
Last path:	KG4OJT-6>APN000 via WIDE1-1,WIDE2-1,qAO,W4TTU-10
Positions stored:	452
Other SSIDs:	KG4OJT-5 KG4OJT-i
Last heard a station directly:	2025-11-20 15:42:04 UTC (70d 4h58m ago)

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.