Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station DD4JN-9 - show graphs
Comment: Norbert QRV: YSF 26444 - U: 4.23V
Location: 51°19.94' N 6°20.84' E - locator JO31EH19QS - show map
633.0 m Southeast bearing 134° from Grefrath, Regierungsbezirk Düsseldorf, North Rhine-Westphalia, Germany [?]
6.1 km Southwest bearing 232° from Kempen, North Rhine-Westphalia, Germany
61.1 km Northwest bearing 317° from Köln (Koeln), Regierungsbezirk Köln, North Rhine-Westphalia, Germany
153.0 km Southeast bearing 139° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
Last position: 2025-11-13 09:40:19 UTC (18s ago)
2025-11-13 10:40:19 CET local time at Grefrath, Germany [?]
Altitude: 27 m
Course: 150°
Speed: 31 km/h
Device: Unknown: Experimental
Last path: DD4JN-9>APZASR-1 via qAO,DB0VIE
Positions stored: 100422
Other SSIDs: DD4JN-7 DD4JN-Y DD4JN-8
Stations which heard DD4JN-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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS