Source callsign:	ED4ZAH-S
Comment:	70cm Voice (D-Star) 438.35000MHz -7.6000MHz
Location:	40°42.85' N 4°08.29' W - locator IN70WR31KJ - show map 6.2 km Northwest bearing 318° from Guadarrama, Provincia de Madrid, Madrid, Spain [?] 12.5 km Northeast bearing 39° from Peguerinos, Provincia de Ávila, Castille and León, Spain 49.5 km Northwest bearing 312° from Madrid, Provincia de Madrid, Madrid, Spain 115.5 km Southeast bearing 155° from Valladolid, Provincia de Valladolid, Castille and León, Spain
Last position:	2025-11-06 19:54:22 UTC (20m24s ago) 2025-11-06 20:54:22 CET local time at Guadarrama, Spain [?]
Altitude:	3 m
Last path:	ED4ZAH-S>APDG01 via TCPIP*,qAC,ED4ZAH-GS
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.