Location:	39°02.43' N 77°25.14' W - locator FM19GA99RR - show map 6.4 km North bearing 348° from Oak Grove, Loudoun County, Virginia, United States [?] 8.4 km North bearing 340° from Herndon, Fairfax County, Virginia, United States 36.8 km Northwest bearing 296° from Washington, D. C., Washington, D.C., United States 74.9 km West bearing 248° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-07-01 05:35:32 UTC (4m29s ago) 2025-07-01 01:35:32 EDT local time at Oak Grove, United States [?]
Last WX report:	2025-07-01 05:35:32 UTC (4m29s ago) – show weather charts 27.8 °C 76% 1010.9 mbar 0.9 m/s Northwest
Device:	Unknown: Unknown
Last path:	EW4757>APRS via TCPXX*,qAX,CWOP-4
Positions stored:	2

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.