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 NV4B - show graphs
Comment: arrl.org/june-vhf
Location: 38°14.26' N 88°07.25' W - locator EM58WF57MA - show map
11.3 km West bearing 259° from Grayville, Edwards County, Illinois, United States [?]
16.5 km South bearing 200° from Albion, Edwards County, Illinois, United States
57.4 km Northwest bearing 301° from Evansville, Vanderburgh County, Indiana, United States
102.1 km Northwest bearing 301° from Owensboro, Daviess County, Kentucky, United States
Last position: 2025-06-15 17:48:13 UTC (32s ago)
2025-06-15 12:48:13 CDT local time at Grayville, United States [?]
Altitude: 92 m
Course: 90°
Speed: 111 km/h
Device: Open Source: APRSdroid (app, Android)
Last path: NV4B>APDR16 via TCPIP*,qAC,T2GB
Positions stored: 17192
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