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APRS station W4FMD-4 - show graphs
Comment: QRV 146.79 Fairfax
Mic-E message: In service
Location: 38°51.01' N 77°18.29' W - locator FM18IU34KA - show map
10.8 km East bearing 84° from Centreville, Fairfax County, Virginia, United States [?]
13.9 km Northeast bearing 63° from Yorkshire, Prince William County, Virginia, United States
23.8 km West bearing 258° from Washington, D. C., Washington, D.C., United States
77.2 km Southwest bearing 231° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-03-09 13:12:40 UTC (64d 2h5m ago)
2025-03-09 09:12:40 EDT local time at Centreville, United States [?]
Course: 138°
Speed: 0 km/h
Device: Kenwood: TM-D700 (rig)
Last path: W4FMD-4>S8UQ0Q via N4CV-2*,WIDE1*,KN4IJF-1*,WIDE2*,qAR,WC4J (good)
Positions stored: 22033
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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