Mic-E message:	Off duty
Location:	38°55.48' N 77°22.39' W - locator FM18HW51FW - show map 5.1 km South bearing 167° from Herndon, Fairfax County, Virginia, United States [?] 7.1 km South bearing 158° from Oak Grove, Loudoun County, Virginia, United States 29.3 km West bearing 277° from Washington, D. C., Washington, D.C., United States 77.2 km Southwest bearing 238° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-07-20 20:28:41 UTC (20d 3h ago) 2025-07-20 16:28:41 EDT local time at Herndon, United States [?]
Altitude:	159 m
Course:	19°
Speed:	13 km/h
Device:	Yaesu: FTM-500D (rig)
Last path:	K4DUF-7>SXUU4X via KV3B-1,WIDE1*,qAR,KI4SUR-1
Positions stored:	454
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.