Location:	39°02.85' N 77°10.65' W - locator FM19JB81QJ - show map 4.2 km Northeast bearing 39° from Potomac, Montgomery County, Maryland, United States [?] 8.2 km North bearing 348° from Cabin John, Montgomery County, Maryland, United States 20.9 km Northwest bearing 324° from Washington, D. C., Washington, D.C., United States 55.7 km Southwest bearing 241° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-09-01 21:30:35 UTC (10m54s ago) 2025-09-01 17:30:35 EDT local time at Potomac, United States [?]
Last WX report:	2025-09-01 21:30:35 UTC (10m54s ago) – show weather charts 24.4 °C 47% 1022.4 mbar 0.0 m/s North
Device:	Unknown: Unknown
Last path:	FW5872>APRS via TCPXX*,qAX,CWOP-7
Positions stored:	1

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.