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 K0DYY - show graphs
Location: 37°37.58' N 122°25.56' W - locator CM87SP80VH - show map
3.5 km Southwest bearing 207° from South San Francisco, San Mateo County, California, United States [?]
6.5 km South bearing 201° from Brisbane, San Mateo County, California, United States
16.5 km South bearing 182° from San Francisco, San Francisco County, California, United States
56.7 km Northwest bearing 304° from San Jose, Santa Clara County, California, United States
Last position: 2025-05-22 17:28:15 UTC (1d 9h30m ago)
2025-05-22 10:28:15 PDT local time at South San Francisco, United States [?]
Device: Icom: unknown (D-Star)
Last path: K0DYY>API705 via DSTAR*,qAR,WW6BAY-B (good)
Positions stored: 4
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