Source callsign:	PD4O-S
Comment:	70cm Voice (D-Star) 439.00000MHz +0.0000MHz
Location:	51°10.47' N 5°56.95' E - ตำแหน่ง JO21XE31VV - show map 3.5 km ตะวันตกเฉียงใต้ bearing 231° มาจาก Roermond, Gemeente Roermond, Limburg, Netherlands [?] 5.0 km ตะวันตกเฉียงเหนือ bearing 314° มาจาก Sint Odiliënberg, Gemeente Roerdalen, Limburg, Netherlands 74.9 km ตะวันตก bearing 291° มาจาก Köln (Koeln), Regierungsbezirk Köln, North Rhine-Westphalia, Germany 117.5 km ตะวันออก bearing 72° มาจาก Brussels, (Bruxelles-Capitale), Brussels Capital Region, Belgium
Last position:	2025-12-10 17:45:21 UTC (16m34s ago) 2025-12-10 18:45:21 CET เวลาท้องถิ่น Roermond, Netherlands [?]
Altitude:	3 m
Last path:	PD4O-S>APDG01 via TCPIP*,qAC,PD4O-GS
Positions stored:	2

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.