Source callsign:	KW4UJ-S
Comment:	70cm Voice (D-Star) 445.91250MHz +0.0000MHz
Location:	38°52.14' N 77°16.20' W - locator FM18IU78ON - show map 11.4 km Northwest bearing 321° from Springfield, Fairfax County, Virginia, United States [?] 11.5 km North bearing 338° from West Springfield, Fairfax County, Virginia, United States 20.4 km West bearing 262° from Washington, D. C., Washington, D.C., United States 73.6 km Southwest bearing 231° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-12-03 16:40:12 UTC (2m22s ago) 2025-12-03 11:40:12 EST local time at Springfield, United States [?]
Altitude:	3 m
Last path:	KW4UJ-S>APDG01 via TCPIP*,qAC,KW4UJ-GS
Positions stored:	75

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.