Mic-E skilaboð:	In service
Staðsetning:	38°55.09' N 77°34.11' W - WW Loc. FM18FW10SI - sýna kort 8.2 km Austur Stefna 79° Frá Bull Run Mountain Estates, Prince William County, Virginia, United States [?] 13.2 km Norð-austur Stefna 26° Frá Haymarket, Prince William County, Virginia, United States 46.1 km Vestur Stefna 273° Frá Washington, D. C., Washington, D.C., United States 92.3 km Suð-vestur Stefna 244° Frá Baltimore, City of Baltimore, Maryland, United States
Síðasta staðsetning:	2025-03-31 20:00:25 UTC (263d 19h19m fyrir) 2025-03-31 16:00:25 EDT Að staðartíma Bull Run Mountain Estates, United States [?]
Hæð:	144 m
Stefna:	0°
Hraði:	0 km/h
Hlutur:	Yaesu: FTM-500D (rig)
Síðasti slóði:	W4BTK>S8UU0Y via N4CV-2,WIDE1,KN4IJF-1,WIDE2*,qAR,W4VA-13
Geymdar stöður:	184
Önnur auðkenni:	W4BTK-9 W4BTK-N

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.