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 JF4THN - show graphs
Comment: APRS Chavanoz
Location: 45°45.48' N 5°09.07' E - locator JN25NS81DW - show map
893.6 m North bearing 6° from Charvieu-Chavagneux, Département de l'Isère, Rhône-Alpes, France [?]
2.5 km Southwest bearing 216° from Chavanoz, Département de l'Isère, Rhône-Alpes, France
23.6 km East bearing 87° from Lyon, Département du Rhône, Rhône-Alpes, France
91.3 km Southwest bearing 238° from Genève, Geneva, Geneva, Switzerland
Last position: 2026-01-24 04:07:40 UTC (3d 23h40m ago)
2026-01-24 05:07:40 CET local time at Charvieu-Chavagneux, France [?]
Device: KJ4ERJ: APRSIS32 (software, Windows)
Last path: JF4THN>APWW11 via F4KLS-3,F5ZHR-4,WIDE2*,qAR,F1IQH (good)
Positions stored: 1
Other SSIDs: JF4THN-13
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