Mic-E message:	Off duty
Location:	38°55.71' N 77°19.33' W - locator FM18IW12IU - show map 3.4 km West bearing 248° from Wolf Trap, Fairfax County, Virginia, United States [?] 4.8 km South bearing 160° from Reston, Fairfax County, Virginia, United States 25.0 km West bearing 279° from Washington, D. C., Washington, D.C., United States 73.2 km Southwest bearing 237° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-06-29 15:31:40 UTC (17d 20h37m ago) 2025-06-29 11:31:40 EDT local time at Wolf Trap, United States [?]
Altitude:	111 m
Course:	78°
Speed:	6 km/h
Device:	Yaesu: FTM-500D (rig)
Last path:	K4DUF-7>SXUU7Q via N4CV-2*,WIDE1*,qAR,WC4J
Positions stored:	418
Other SSIDs:	K4DUF-D K4DUF-N K4DUF-9 K4DUF-9

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.