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 KM7CSF - show graphs
Mic-E message: Off duty
Location: 31°34.74' N 110°20.75' W - locator DM41TN88MX - show map
4.8 km Northwest bearing 304° from Sierra Vista, Cochise County, Arizona, United States [?]
18.5 km Northwest bearing 319° from Sierra Vista Southeast, Cochise County, Arizona, United States
64.0 km Northeast bearing 62° from Heroica Nogales, Sonora, Mexico
90.0 km Southeast bearing 142° from Tucson, Pima County, Arizona, United States
Last position: 2025-12-18 22:35:29 UTC (3h34m ago)
2025-12-18 15:35:29 MST local time at Sierra Vista, United States [?]
Altitude: 1453 m
Course: 149°
Speed: 17 km/h
Device: Yaesu: FTM-510D (rig)
Last path: KM7CSF>SQSTWT via HELIO*,WIDE2-1,qAR,K7TUS (good)
Positions stored: 1084
Other SSIDs: KM7CSF-7
Stations which heard KM7CSF 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