Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station KN4GDX-C - show graphs
Comment: 70cm Voice (D-Star) 441.20000MHz +0.0000MHz
Location: 38°46.98' N 77°46.50' W - locator FM18CS77AW - show map
11.6 km Southeast bearing 142° from Marshall, Fauquier County, Virginia, United States [?]
16.6 km Southwest bearing 216° from Bull Run Mountain Estates, Prince William County, Virginia, United States
65.1 km West bearing 259° from Washington, D. C., Washington, D.C., United States
115.1 km Southwest bearing 241° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2024-04-01 20:21:28 UTC (314d 19h45m ago)
2024-04-01 16:21:28 EDT local time at Marshall, United States [?]
Altitude: 3 m
Device: Jonathan, G4KLX: ircDDB Gateway (D-Star)
Last path: KN4GDX-C>APDG02 via TCPIP*,qAC,KN4GDX-CS
Positions stored: 1
Other SSIDs: KN4GDX-N KN4GDX-B KN4GDX-1 KN4GDX-12
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS