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 W9CWC - show graphs
Comment: APRS-IS for Win32
Location: 43°00.02' N 88°23.70' W - locator EN53TA20OB - show map
1.6 km West bearing 253° from Wales, Waukesha County, Wisconsin, United States [?]
6.8 km South bearing 174° from Delafield, Waukesha County, Wisconsin, United States
39.9 km West bearing 264° from Milwaukee, Milwaukee County, Wisconsin, United States
82.1 km East bearing 95° from Madison, Dane County, Wisconsin, United States
Last position: 2025-07-19 23:23:34 UTC (16d 13h14m ago)
2025-07-19 18:23:34 CDT local time at Wales, United States [?]
Device: KJ4ERJ: APRSIS32 (software, Windows)
Last path: W9CWC>APWW11 via TCPIP*,qAC,T2CHILE
Positions stored: 37
Other SSIDs: W9CWC-10 W9CWC-8 W9CWC-5 W9CWC-7
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