Mic-E message:	In service
Hely:	38°55.09' N 77°34.11' W - lokátor FM18FW10SI - térkép nézet 5.6 km Nyugat irány 267° tól South Riding, Loudoun County, Virginia, United States [?] 7.6 km Dél irány 200° tól Brambleton, Loudoun County, Virginia, United States 46.1 km Nyugat irány 273° tól Washington, D. C., Washington, D.C., United States 92.3 km Délnyugat irány 244° tól Baltimore, City of Baltimore, Maryland, United States
Utolső pozíció:	2025-03-31 20:00:25 UTC (46d 4h2m ezelőtt) 2025-03-31 16:00:25 EDT helyi idő South Riding, United States [?]
Magasság:	144 m
Irány:	0°
Sebesség:	0 km/h
Device:	Yaesu: FTM-500D (rig)
Utolsó útvonal:	W4BTK>S8UU0Y via N4CV-2,WIDE1,KN4IJF-1,WIDE2*,qAR,W4VA-13
Positions stored:	184
Más SSID-k:	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.