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 K3MSR-7 - show graphs
Mic-E message: Off duty
Location: 39°23.68' N 77°27.05' W - locator FM19GJ54VR - show map
2.8 km Northwest bearing 331° from Ballenger Creek, Frederick County, Maryland, United States [?]
7.8 km Northeast bearing 62° from Jefferson, Frederick County, Maryland, United States
66.0 km Northwest bearing 327° from Washington, D. C., Washington, D.C., United States
73.0 km West bearing 279° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2026-01-28 20:54:07 UTC (1d 7h25m ago)
2026-01-28 15:54:07 EST local time at Ballenger Creek, United States [?]
Altitude: 133 m
Course: 22°
Speed: 11 km/h
Device: Yaesu: FT2D (ht)
Last path: K3MSR-7>SYRS6X via WIDE1-1,WIDE2-1,qAR,KC3BHK-1 (good)
Positions stored: 12046
Other SSIDs: K3MSR-15
Stations which heard K3MSR-7 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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