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 E20TWR-3 - show graphs
Comment: Expert EP-868 Stand by D_Star : REF087C es
Location: 13°56.45' N 100°36.93' E - locator OK03HW35UT - show map
3.9 km Northwest bearing 305° from Sai Mai, Bangkok, Thailand [?]
4.1 km Northeast bearing 43° from Don Mueang, Bangkok, Thailand
24.1 km Northeast bearing 31° from Bangkok, Bangkok, Thailand
38.0 km North bearing 3° from Samut Prakan, Samut Prakan, Thailand
Last position: 2025-08-12 07:20:05 UTC (1d 21h13m ago)
2025-08-12 14:20:05 +07 local time at Sai Mai, Thailand [?]
Device: Open Source: APRSdroid (app, Android)
Last path: E20TWR-3>APDR10 via WIDE1-1,qAR,E21EIC-2 (good)
Positions stored: 5267
Other SSIDs: E20TWR-1 E20TWR-14 E20TWR-13 E20TWR-9 E20TWR E20TWR-C E20TWR-7 E20TWR-2
Stations which heard E20TWR-3 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