Comment:	146.520MHz https://aprsdro
Location:	38°53.50' N 77°10.50' W - locator FM18JV94AA - show map 5.7 km Southeast bearing 122° from Tysons Corner, Fairfax County, Virginia, United States [?] 7.9 km East bearing 98° from Vienna, Fairfax County, Virginia, United States 12.0 km West bearing 268° from Washington, D. C., Washington, D.C., United States 65.7 km Southwest bearing 228° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-08-17 21:17:58 UTC (75d 9h32m ago) 2025-08-17 17:17:58 EDT local time at Tysons Corner, United States [?]
Altitude:	99 m
Position ambiguous:	Precision reduced at transmitter by 2 digits, position resolution approximately 1.9 km.
Course:	73°
Speed:	15 km/h
Device:	Open Source: APRSdroid (app, Android)
Last path:	K4SEM-9>APDR16 via TCPIP*,qAC,T2SWEDEN
Positions stored:	2067
Other SSIDs:	K4SEM-10

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.