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 W9PEM-1 - show graphs
Comment: PinPoint v2.1
Location: 43°19.78' N 87°59.13' W - locator EN63AH19RC - show map
2.8 km Northwest bearing 293° from Grafton, Ozaukee County, Wisconsin, United States [?]
3.7 km North bearing 3° from Cedarburg, Ozaukee County, Wisconsin, United States
32.9 km North bearing 349° from Milwaukee, Milwaukee County, Wisconsin, United States
118.2 km East bearing 76° from Madison, Dane County, Wisconsin, United States
Last position: 2025-08-21 11:31:26 UTC (42d 38m ago)
2025-08-21 06:31:26 CDT local time at Grafton, United States [?]
Last telemetry: 2022-12-14 01:00:16 UTC (1023d 11h9m ago) – show telemetry
Ch 1: 100, Ch 2: 48, Ch 3: 2, Ch 4: 128, Ch 5: 0
 1     2     3     4     5     6     7     8 
Device: AB0WV: PinPoint
Last path: W9PEM-1>APIN21 via WIDE1-1,WIDE2-1,qAR,W9CQO-1 (good)
Positions stored: 79
Other SSIDs: W9PEM-N W9PEM-3 W9PEM-7 W9PEM W9PEM-2 W9PEM-i
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