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 W9BLN-9 - show graphs
Comment: 442.800MHz T123 +500 Adler Planetarium Flight Crew for WB9SK
Mic-E message: Off duty
Location: 44°29.10' N 88°01.28' W - locator EN54XL76KJ - show map
928.0 m Northwest bearing 334° from Allouez, Brown County, Wisconsin, United States [?]
3.8 km South bearing 182° from Green Bay, Brown County, Wisconsin, United States
9.2 km Northwest bearing 300° from Bellevue, Brown County, Wisconsin, United States
39.9 km Northeast bearing 51° from Appleton, Outagamie County, Wisconsin, United States
Last position: 2025-11-29 19:11:26 UTC (5d 12h59m ago)
2025-11-29 13:11:26 CST local time at Allouez, United States [?]
Altitude: 222 m
Course: 23°
Speed: 13 km/h
Device: Yaesu: FTM-500D (rig)
Last path: W9BLN-9>TTRY1P via WIDE1-1,qAR,KB8ZXE-1 (good)
Positions stored: 7891
Other SSIDs: W9BLN W9BLN-Y W9BLN-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