Source callsign:	K4MBU-S
Comment:	70cm Voice (D-Star) 434.00000MHz +0.0000MHz
Location:	38°52.14' N 77°41.64' W - locator FM18DU68RN - show map 4.8 km Southwest bearing 216° from Bull Run Mountain Estates, Prince William County, Virginia, United States [?] 8.1 km Northwest bearing 322° from Haymarket, Prince William County, Virginia, United States 57.0 km West bearing 267° from Washington, D. C., Washington, D.C., United States 104.4 km Southwest bearing 244° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-04-27 01:47:08 UTC (187d 21h53m ago) 2025-04-26 21:47:08 EDT local time at Bull Run Mountain Estates, United States [?]
Altitude:	3 m
Last path:	K4MBU-S>APDG01 via TCPIP*,qAC,K4MBU-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.