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APRS station DO4SEM-R - show graphs
Comment: 70cm MMDVM Voice (C4FM) 438.30000MHz -7.6000MHz, DO4SEM_Pi-Star_RPT
Location: 51°32.91' N 7°18.74' E - locator JO31PN71LP - show map
343.1 m Southwest bearing 241° from Castrop-Rauxel, North Rhine-Westphalia, Germany [?]
10.4 km Southeast bearing 155° from Oer-Erkenschwick, North Rhine-Westphalia, Germany
23.2 km Northeast bearing 62° from Essen, North Rhine-Westphalia, Germany
72.9 km North bearing 20° from Köln (Koeln), Regierungsbezirk Köln, North Rhine-Westphalia, Germany
Last position: 2025-07-13 11:25:14 UTC (1d 1h27m ago)
2025-07-13 13:25:14 CEST local time at Castrop-Rauxel, Germany [?]
Altitude: 0 m
Device: Jonathan, G4KLX: ircDDB Gateway (D-Star)
Last path: DO4SEM-R>APDG03 via TCPIP*,qAC,DO4SEM-RS
Positions stored: 1
Other SSIDs: DO4SEM-N DO4SEM-B DO4SEM DO4SEM-D
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.
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