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 KK4KM - show graphs
Mic-E message: In service
Location: 38°39.09' N 77°27.38' W - locator FM18GP56FI - show map
2.4 km Northwest bearing 317° from Independent Hill, Prince William County, Virginia, United States [?]
9.2 km South bearing 194° from Buckhall, Prince William County, Virginia, United States
45.3 km Southwest bearing 233° from Washington, D. C., Washington, D.C., United States
101.8 km Southwest bearing 226° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-05-13 16:26:42 UTC (45d 6h29m ago)
2025-05-13 12:26:42 EDT local time at Independent Hill, United States [?]
Position ambiguous: Precision reduced at transmitter by 3 digits, position resolution approximately 18.5 km.
Course:
Speed: 0 km/h
Device: Kenwood: TM-D710 (rig)
Last path: KK4KM>S8SZLZ via WIDE1-1,qAR,W4VA-13 (good)
Positions stored: 1
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