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 N9TWA-9 - show graphs
Mic-E message: In service
Location: 43°04.32' N 89°23.02' W - locator EN53HB37XG - show map
1.4 km East bearing 95° from Madison, Dane County, Wisconsin, United States [?]
4.2 km West bearing 285° from Monona, Dane County, Wisconsin, United States
10.1 km Northwest bearing 311° from McFarland, Dane County, Wisconsin, United States
92.1 km North bearing 345° from Rockford, Winnebago County, Illinois, United States
Last position: 2025-08-14 21:29:51 UTC (12d 12h57m ago)
2025-08-14 16:29:51 CDT local time at Madison, United States [?]
Altitude: 281 m
Course: 58°
Speed: 26 km/h
Device: Kenwood: TM-D710 (rig)
Last path: N9TWA-9>T3PT3R via WIDE1-1,WIDE2-1,qAR,N2UEM-3 (good)
Positions stored: 2717
Stations which heard N9TWA-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