Location:	38°51.52' N 77°41.68' W - ตำแหน่ง FM18DU66PB - show map 5.8 km ตะวันตกเฉียงใต้ bearing 210° มาจาก Bull Run Mountain Estates, Prince William County, Virginia, United States [?] 7.2 km ตะวันตกเฉียงเหนือ bearing 316° มาจาก Haymarket, Prince William County, Virginia, United States 57.1 km ตะวันตก bearing 266° มาจาก Washington, D. C., Washington, D.C., United States 105.0 km ตะวันตกเฉียงใต้ bearing 243° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-12-24 12:46:00 UTC (2m6s ago) 2025-12-24 07:46:00 EST เวลาท้องถิ่น Bull Run Mountain Estates, United States [?]
ข้อมูลอากาศ (WX) ล่าสุด:	2025-12-24 12:41:01 UTC (7m5s ago) – show weather charts 8.9 °C 61% 1019.4 mbar 5.4 m/s ตะวันตกเฉียงเหนือ
Device:	Unknown: Unknown
Last path:	FW9133>APRS via TCPXX*,qAX,CWOP-3
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.