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 PD1ALW - show graphs
Comment: SharkRF openSPOT4
Location: 53°11.25' N 5°27.49' E - locator JO23RE45XA - show map
5.5 km West bearing 272° from Franeker, Gemeente Franekeradeel, Friesland, Netherlands [?]
7.7 km Northwest bearing 294° from Tzum, Gemeente Franekeradeel, Friesland, Netherlands
73.9 km West bearing 268° from Groningen, Gemeente Groningen, Groningen, Netherlands
98.1 km Northeast bearing 23° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
Last position: 2025-06-05 18:39:03 UTC (1d 12h52m ago)
2025-06-05 20:39:03 CEST local time at Franeker, Netherlands [?]
Altitude: 0 m
Device: SharkRF: openSPOT4 (gadget)
Last path: PD1ALW>APOSB4 via TCPIP*,qAC,T2SYDNEY
Positions stored: 4
Other SSIDs: PD1ALW-9 PD1ALW-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