Comment:	https://aprsdroid.org/
Location:	39°05.00' N 77°25.00' W - ตำแหน่ง FM19GB99XX - show map 4.7 km เหนือ bearing 357° มาจาก Countryside, Loudoun County, Virginia, United States [?] 5.1 km เหนือ bearing 359° มาจาก Dulles Town Center, Loudoun County, Virginia, United States 38.9 km ตะวันตกเฉียงเหนือ bearing 303° มาจาก Washington, D. C., Washington, D.C., United States 73.0 km ตะวันตก bearing 252° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-07-20 16:50:42 UTC (140d 6h16m ago) 2025-07-20 12:50:42 EDT เวลาท้องถิ่น Countryside, United States [?]
Position ambiguous:	Precision reduced at transmitter by 3 digits, position resolution approximately 18.5 km.
Device:	Open Source: APRSdroid (app, Android)
Last path:	W4JDC-10>APDR16 via TCPIP*,qAC,T2CZECH
Positions stored:	3
Other SSIDs:	W4JDC-3 W4JDC-D W4JDC-1 W4JDC-N W4JDC-B

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.