Comment:	KR4BRT Base
Location:	38°51.22' N 77°21.05' W - locator FM18HU74VV - show map 3.9 km West bearing 282° from Fairfax, City of Fairfax, Virginia, United States [?] 4.9 km Southeast bearing 117° from Greenbriar, Fairfax County, Virginia, United States 27.6 km West bearing 260° from Washington, D. C., Washington, D.C., United States 80.1 km Southwest bearing 233° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-07-30 19:22:20 UTC (15d 16m ago) 2025-07-30 15:22:20 EDT local time at Fairfax, United States [?]
Altitude:	0 m
Device:	Anytone: AT-D578 (rig)
Last path:	KR4BRT>APAT51 via WIDE1-1,WIDE2-1,qAR,WC4J
Positions stored:	2
Other SSIDs:	KR4BRT-i

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.