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 HS4FAJ - show graphs
Map loading...
Comment: U2APRS
Location: 17°50.28' N 101°56.06' E - locator OK07XU21CC - show map - static map
12.8 miles South bearing 169° from Pak Chom, Loei, Thailand [?]
14.7 miles West bearing 254° from Na Yung, Udon Thani, Thailand
44.6 miles West bearing 259° from Vientiane, Viangchan, Laos
63.2 miles Northwest bearing 298° from Udon Thani, Udon Thani, Thailand
Last position: 2017-09-02 23:20:21 EDT (82d 11h44m ago)
2017-09-03 10:20:21 ICT local time at Pak Chom, Thailand [?]
Altitude: 819 ft
Course: 198°
Device: JA7UDE: U2APRS (app, Android)
Last path: HS4FAJ>APDU82 via TCPIP*,qAC,T2MCI
Positions stored: 142
Stations near current position of HS4FAJ - show more
callsign distance last heard - EST      callsign distance last heard - EST
HS4UMA-916.1 miles 246°2017-11-15 08:02:51 HS4POQ21.8 miles 220°2017-11-24 09:42:12
HS4POQ-1021.9 miles 220°2017-10-26 09:47:13 HS8YTU-3124.7 miles 214°2017-11-17 17:07:30
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.
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