Source callsign:	EA4DSU
Comment:	434.550MHz Toff R51k 434.550 DMO Link TETRA Boadilla del
Location:	40°24.20' N 3°54.20' W - locator IN80BJ16OT - show map 8.2 km South bearing 199° from Majadahonda, Provincia de Madrid, Madrid, Spain [?] 8.3 km Southwest bearing 247° from Pozuelo de Alarcón, Provincia de Madrid, Madrid, Spain 13.4 km West bearing 277° from Latina, Provincia de Madrid, Madrid, Spain 17.1 km West bearing 265° from Madrid, Provincia de Madrid, Madrid, Spain
Last position:	2025-08-29 07:09:58 UTC (3d 15h31m ago) 2025-08-29 09:09:58 CEST local time at Majadahonda, Spain [?]
Last path:	EA4DSU>APSVX1 via TCPIP*,qAC,T2ROMANIA
Positions stored:	1

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.