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 W9PCK - show graphs
Location: 43°58.35' N 88°34.72' W - locator EN53RX03NJ - show map
6.5 km Southwest bearing 206° from Oshkosh, Winnebago County, Wisconsin, United States [?]
15.2 km Southeast bearing 119° from Omro, Winnebago County, Wisconsin, United States
117.0 km Northwest bearing 333° from Milwaukee, Milwaukee County, Wisconsin, United States
119.9 km Northeast bearing 33° from Madison, Dane County, Wisconsin, United States
Last position: 2025-07-21 03:44:30 UTC (14d 5h17m ago)
2025-07-20 22:44:30 CDT local time at Oshkosh, United States [?]
Altitude: 255 m
Course: 258°
Speed: 0 km/h
Device: unknown: D-Star APDPRS (D-Star)
Last path: W9PCK>APDPRS via DSTAR*,qAR,WB9SLI-C (good)
Positions stored: 1
Other SSIDs: W9PCK-S W9PCK-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