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 K0MDK-9 - show graphs
Location: 44°05.61' N 103°05.51' W - locator DN84KC82XK - show map
2.8 km Southwest bearing 222° from Box Elder, Pennington County, South Dakota, United States [?]
5.5 km Northeast bearing 52° from Rapid Valley, Pennington County, South Dakota, United States
11.2 km East bearing 83° from Rapid City, Pennington County, South Dakota, United States
75.3 km Southeast bearing 126° from Spearfish, Lawrence County, South Dakota, United States
Last position: 2026-01-01 00:38:13 UTC (9h56m ago)
2025-12-31 17:38:13 MST local time at Box Elder, United States [?]
Altitude: 981 m
Course: 270°
Speed: 19 km/h
Device: WB2OSZ: DireWolf
Last path: K0MDK-9>APDW16 via WIDE2-1,qAR,KE0QIB (good)
Positions stored: 59
Other SSIDs: K0MDK-7
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