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 W4RKZ-9 - show graphs
Comment: 146.520MHz https://aprsdro
Location: 34°10.11' N 86°07.72' W - locator EM64WE40NK - show map
840.2 m Southwest bearing 220° from Sardis City, Etowah County, Alabama, United States [?]
5.0 km Southeast bearing 136° from Boaz, Marshall County, Alabama, United States
75.2 km Southeast bearing 146° from Huntsville, Madison County, Alabama, United States
95.1 km Northeast bearing 41° from Birmingham, Jefferson County, Alabama, United States
Last position: 2025-02-25 16:03:04 UTC (16d 5h52m ago)
2025-02-25 10:03:04 CST local time at Sardis City, United States [?]
Altitude: 297 m
Course: 142°
Speed: 13 km/h
Device: Open Source: APRSdroid (app, Android)
Last path: W4RKZ-9>APDR16 via KD4ADC-4*,qAR,KD4ADC-1 (good)
Positions stored: 3543
Other SSIDs: W4RKZ-10 W4RKZ-5
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