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 K6BT-4 - show graphs
Comment: APRSDroid on Sony Xperia
Location: 37°24.63' N 122°04.77' W - locator CM87XJ08LM - show map
6.6 km Southeast bearing 122° from Palo Alto, Santa Clara County, California, United States [?]
8.5 km Southeast bearing 140° from East Palo Alto, San Mateo County, California, United States
18.1 km Northwest bearing 296° from San Jose, Santa Clara County, California, United States
50.4 km Southeast bearing 143° from San Francisco, San Francisco County, California, United States
Last position: 2025-09-23 17:24:54 UTC (19d 9h ago)
2025-09-23 10:24:54 PDT local time at Palo Alto, United States [?]
Position ambiguous: Precision reduced at transmitter by 2 digits, position resolution approximately 1.9 km.
Speed: 8 km/h
Device: Open Source: APRSdroid (app, Android)
Last path: K6BT-4>APDR15 via TCPIP*,qAC,T2F5KAV
Positions stored: 1
Other SSIDs: K6BT-5 K6BT-7 K6BT K6BT-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