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 W4RLF-5 - show graphs
Comment: 147.090MHz Bike Repair 1 C
Location: 33°40.52' N 86°15.33' W - locator EM63UQ92IB - show map
9.0 km Northwest bearing 328° from Riverside, Saint Clair County, Alabama, United States [?]
10.3 km North bearing 16° from Pell City, Saint Clair County, Alabama, United States
53.5 km East bearing 71° from Birmingham, Jefferson County, Alabama, United States
132.3 km Northeast bearing 67° from Tuscaloosa, Tuscaloosa County, Alabama, United States
Last position: 2025-06-13 18:02:32 UTC (12d 20h11m ago)
2025-06-13 13:02:32 CDT local time at Riverside, United States [?]
Altitude: 127 m
Course: 49°
Speed: 2 km/h
Device: Open Source: APRSdroid (app, Android)
Last path: W4RLF-5>APDR16 via TCPIP*,qAC,T2DENMARK
Positions stored: 720
Other SSIDs: W4RLF-6
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