Location:	39°10.40' N 77°16.86' W - locator FM19IE61GO - show map 12.1 km Northwest bearing 301° from Derwood, Montgomery County, Maryland, United States [?] 14.9 km Northwest bearing 312° from Rockville, Montgomery County, Maryland, United States 37.4 km Northwest bearing 326° from Washington, D. C., Washington, D.C., United States 59.0 km West bearing 257° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-06-06 15:02:53 UTC (43m42s ago) 2025-06-06 11:02:53 EDT local time at Derwood, United States [?]
Course:	100°
Speed:	0 km/h
Device:	Icom: IC-5100 (D-Star)
Last path:	WJ3F-5>API510 via DSTAR*,qAO,KV3B-B
Positions stored:	7
Other SSIDs:	WJ3F-7 WJ3F-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.