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 KB9MLJ-13 - show graphs
Comment: 146.520
Location: 41°26.13' N 87°45.54' W - locator EN61CK84WM - show map
2.2 km Northwest bearing 320° from Monee, Will County, Illinois, United States [?]
7.1 km Southwest bearing 220° from Richton Park, Cook County, Illinois, United States
46.9 km South bearing 191° from Chicago, Cook County, Illinois, United States
59.0 km Southeast bearing 128° from Aurora, Kane County, Illinois, United States
Last position: 2026-01-20 20:05:46 UTC (11d 20h6m ago)
2026-01-20 14:05:46 CST local time at Monee, United States [?]
Altitude: 218 m
Course: 182°
Speed: 107 km/h
Device: BTECH: UV-PRO (ht)
Last path: KB9MLJ-13>APBTUV via W9AZ-2,WIDE1*,WIDE2-1,qAR,K9KJ-1 (good)
Positions stored: 9116
Other SSIDs: KB9MLJ KB9MLJ-D KB9MLJ-12 KB9MLJ-9 KB9MLJ-5 KB9MLJ-6 KB9MLJ-7 KB9MLJ-Y
Last heard a station directly: 2025-11-19 19:52:32 UTC (73d 20h19m ago)
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