Location:	38°59.04' N 77°23.25' W - locator FM18HX36MD - show map 1.6 km North bearing 356° from Herndon, Fairfax County, Virginia, United States [?] 4.4 km Northwest bearing 293° from Reston, Fairfax County, Virginia, United States 31.9 km West bearing 288° from Washington, D. C., Washington, D.C., United States 75.0 km Southwest bearing 243° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-10-18 01:15:11 UTC (2d 17h41m ago) 2025-10-17 21:15:11 EDT local time at Herndon, United States [?]
Device:	Open Source: Xastir (software, Linux/Unix)
Last path:	K4INT-4>APX223 via TCPIP*,qAC,EIGHTH
Positions stored:	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.