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 KZ4FY-9 - show graphs
Comment: test
Last status: test
Location: 38°48.39' N 77°07.72' W - locator FM18KT43NN - show map
1.8 km Southeast bearing 136° from Lincolnia, Fairfax County, Virginia, United States [?]
2.4 km Northwest bearing 325° from Rose Hill, Fairfax County, Virginia, United States
12.7 km Southwest bearing 219° from Washington, D. C., Washington, D.C., United States
69.8 km Southwest bearing 220° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2026-01-31 02:39:45 UTC (8h1m ago)
2026-01-30 21:39:45 EST local time at Lincolnia, United States [?]
Device: Marcus Roskosch, DL8MRE: sdr-control (app)
Last path: KZ4FY-9>APSDR1 via W4HFH-14*,WIDE2-1,qAR,W4KEL-12 (good)
Positions stored: 3
Stations which heard KZ4FY-9 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