Location:	39°07.72' N 77°14.53' W - locator FM19JD00WV - show map 3.9 km Southwest bearing 245° from Gaithersburg, Montgomery County, Maryland, United States [?] 7.1 km West bearing 280° from Derwood, Montgomery County, Maryland, United States 31.5 km Northwest bearing 326° from Washington, D. C., Washington, D.C., United States 57.1 km West bearing 252° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-08-28 00:24:41 UTC (4d 16h31m ago) 2025-08-27 20:24:41 EDT local time at Gaithersburg, United States [?]
Last path:	KC3TBC>API52 via DSTAR*,qAS,WJ8B-G
Positions stored:	165
Other SSIDs:	KC3TBC-B KC3TBC-7 KC3TBC-i

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.