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 EA4IQW-7 - show graphs
Comment: Learnig
Mic-E message: Off duty
Location: 40°37.35' N 3°43.65' W - locator IN80DO29QJ - show map
2.9 km Northwest bearing 326° from Tres Cantos, Provincia de Madrid, Madrid, Spain [?]
5.3 km Southeast bearing 140° from Colmenar Viejo, Provincia de Madrid, Madrid, Spain
23.0 km North bearing 355° from Madrid, Provincia de Madrid, Madrid, Spain
141.8 km Southeast bearing 144° from Valladolid, Provincia de Valladolid, Castille and León, Spain
Last position: 2025-09-28 08:26:37 UTC (15d 1h20m ago)
2025-09-28 10:26:37 CEST local time at Tres Cantos, Spain [?]
Altitude: 778 m
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 185.0 m.
Course: 341°
Speed: 0 km/h
Device: Yaesu: FT5D (ht)
Last path: EA4IQW-7>TPSWSZ via EA4URA-3,WIDE1*,WIDE2-1,qAO,ED4ZAH-10 (good)
Positions stored: 47
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