Source callsign:	KA4ROP-S
Comment:	70cm Voice (D-Star) 433.30000MHz +5.0000MHz
Location:	38°42.48' N 77°05.17' W - ตำแหน่ง FM18KQ99PW - show map 2.2 km ตะวันออกเฉียงใต้ bearing 124° มาจาก Mount Vernon, Fairfax County, Virginia, United States [?] 4.4 km ใต้ bearing 184° มาจาก Hybla Valley, Fairfax County, Virginia, United States 21.2 km ใต้ bearing 192° มาจาก Washington, D. C., Washington, D.C., United States 76.6 km ตะวันตกเฉียงใต้ bearing 212° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-12-07 16:52:30 UTC (1m41s ago) 2025-12-07 11:52:30 EST เวลาท้องถิ่น Mount Vernon, United States [?]
Altitude:	3 m
Last path:	KA4ROP-S>APDG01 via TCPIP*,qAC,KA4ROP-GS
Positions stored:	27

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.