Location:	38°40.41' N 77°27.07' W - ตำแหน่ง FM18GQ51UP - show map 13.6 km ตะวันออกเฉียงใต้ bearing 154° มาจาก Bull Run, Prince William County, Virginia, United States [?] 14.4 km ตะวันออกเฉียงใต้ bearing 132° มาจาก Linton Hall, Prince William County, Virginia, United States 43.6 km ตะวันตกเฉียงใต้ bearing 236° มาจาก Washington, D. C., Washington, D.C., United States 99.8 km ตะวันตกเฉียงใต้ bearing 227° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-11-26 19:47:49 UTC (10d 21h47m ago) 2025-11-26 14:47:49 EST เวลาท้องถิ่น Bull Run, United States [?]
Device:	Icom: IC-4100 (D-Star)
Last path:	KB0MBJ>API410 via DSTAR*,qAR,W4OVH-C
Positions stored:	2

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.