Location:	39°09.37' N 77°12.81' W - locator FM19JD47JL - show map 1.8 km Northwest bearing 324° from Gaithersburg, Montgomery County, Maryland, United States [?] 6.2 km Northwest bearing 314° from Derwood, Montgomery County, Maryland, United States 32.8 km Northwest bearing 332° from Washington, D. C., Washington, D.C., United States 53.9 km West bearing 254° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-07-31 18:44:13 UTC (31d 7h50m ago) 2025-07-31 14:44:13 EDT local time at Gaithersburg, United States [?]
Last path:	W4BLG>API52 via DSTAR*,qAO,KV3B-B
Positions stored:	3

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.