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APRS station ON1SD-9 - show graphs
Comment: ON1SD STEF QRV VIA 145.66250 T 131.8
Mic-E message: En route
Location: 50°57.42' N 6°02.39' E - locator JO30AW49SQ - show map
9.1 km Northeast bearing 27° from Heerlen, Gemeente Heerlen, Limburg, Netherlands [?]
11.2 km Northeast bearing 43° from Voerendaal, Gemeente Voerendaal, Limburg, Netherlands
63.8 km West bearing 273° from Köln (Koeln), Regierungsbezirk Köln, North Rhine-Westphalia, Germany
119.1 km East bearing 84° from Brussels, (Bruxelles-Capitale), Brussels Capital Region, Belgium
Last position: 2026-01-04 05:39:31 UTC (4d 13h44m ago)
2026-01-04 06:39:31 CET local time at Heerlen, Netherlands [?]
Altitude: 83 m
Course: 172°
Speed: 0 km/h
Device: Yaesu: FTM-510D (rig)
Last path: ON1SD-9>UP5WT2 via WIDE1-1,WIDE2-1,qAO,DB0KX-2 (good)
Positions stored: 9876
Other SSIDs: ON1SD-D
Stations which heard ON1SD-9 directly on radio –
callsign pkts first heard - UTC last heard longest (tx => rx) longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.
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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