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 KC9TSO-9 - show graphs
Comment: Make 146.520 great again.
Mic-E message: In service
Location: 43°14.82' N 88°15.70' W - locator EN53UF89OG - show map
5.6 km West bearing 260° from Richfield, Washington County, Wisconsin, United States [?]
11.7 km North bearing 18° from Merton, Waukesha County, Wisconsin, United States
36.9 km Northwest bearing 309° from Milwaukee, Milwaukee County, Wisconsin, United States
94.4 km East bearing 78° from Madison, Dane County, Wisconsin, United States
Last position: 2026-01-09 22:02:35 UTC (22s ago)
2026-01-09 16:02:35 CST local time at Richfield, United States [?]
Altitude: 326 m
Course: 180°
Speed: 83 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: KC9TSO-9>T3QT8R via KB9KBK-1,WIDE1*,WIDE2-1,qAR,AA9AV-10 (good)
Positions stored: 4138
Stations which heard KC9TSO-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