Source callsign:	W4JDC-S
Comment:	70cm Voice (D-Star) 446.07500MHz +0.0000MHz
Location:	39°05.97' N 77°30.58' W - ตำแหน่ง FM19FC83UV - show map 3.9 km เหนือ bearing 0° มาจาก Belmont, Loudoun County, Virginia, United States [?] 5.0 km ตะวันออก bearing 111° มาจาก Leesburg, Loudoun County, Virginia, United States 46.8 km ตะวันตกเฉียงเหนือ bearing 299° มาจาก Washington, D. C., Washington, D.C., United States 80.1 km ตะวันตก bearing 255° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-07-06 21:52:49 UTC (157d  ago) 2025-07-06 17:52:49 EDT เวลาท้องถิ่น Belmont, United States [?]
Altitude:	3 m
Last path:	W4JDC-S>APDG01 via TCPIP*,qAC,W4JDC-GS
Positions stored:	1

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.