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 KM4YHI-7 - show graphs
Comment: APRS Balloon Tracker by K9YO
Location: 42°16.86' N 87°58.20' W - locator EN62AG37OK - show map
5.6 km West bearing 260° from Green Oaks, Lake County, Illinois, United States [?]
7.0 km West bearing 265° from Knollwood, Lake County, Illinois, United States
54.7 km Northwest bearing 331° from Chicago, Cook County, Illinois, United States
84.4 km South bearing 184° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position: 2024-03-04 18:19:56 UTC (137d 11h14m ago)
2024-03-04 12:19:56 CST local time at Green Oaks, United States [?]
Speed: 33 km/h
Device: Open Source: Xastir (software, Linux/Unix)
Last path: KM4YHI-7>APX783 via WIDE2-1,qAO,K9IQP-13 (good)
Positions stored: 11
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 · AIS sites · Service status · Database statistics · Advertising on · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS