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APRS station KO4BYB-9 - show graphs
Comment: 147.210MHz
Mic-E message: In service
Location: 38°44.52' N 77°11.31' W - locator FM18JR78JB - show map
4.4 km Southeast bearing 140° from West Springfield, Fairfax County, Virginia, United States [?]
5.4 km Northeast bearing 39° from Lorton, Fairfax County, Virginia, United States
21.5 km Southwest bearing 218° from Washington, D. C., Washington, D.C., United States
78.7 km Southwest bearing 219° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-11-25 14:49:15 UTC (6d 6h36m ago)
2025-11-25 09:49:15 EST local time at West Springfield, United States [?]
Altitude: 52 m
Course: 26°
Speed: 26 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: KO4BYB-9>S8TT5R via qAO,EDSALL-10
Positions stored: 926
Other SSIDs: KO4BYB-Y
About this site
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.
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