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 AK9RT-5 - show graphs
Location: 41°28.66' N 87°00.23' W - locator EN61LL94NP - show map
4.8 km East bearing 84° from Valparaiso, Porter County, Indiana, United States [?]
9.9 km Northeast bearing 64° from Aberdeen, Porter County, Indiana, United States
67.7 km Southeast bearing 127° from Chicago, Cook County, Illinois, United States
113.8 km East bearing 106° from Aurora, Kane County, Illinois, United States
Last position: 2025-09-29 18:58:12 UTC (1d 12h52m ago)
2025-09-29 13:58:12 CDT local time at Valparaiso, United States [?]
Last path: AK9RT-5>BEACON via WIDE1,WIDE2*,qAR,W9LRT-3 (good)
Positions stored: 27
Other SSIDs: AK9RT-9 AK9RT-8 AK9RT-10
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