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 HS4UMA-9 - show graphs
Map loading...
Comment: 14.0V 30C
Location: 17°45.61' N 101°42.62' E - locator OK07US52FK - show map - static map
9.8 miles South bearing 160° from Chiang Khan, Loei, Thailand [?]
10.5 miles South bearing 159° from Muang Sanakham, Khouèng Viangchan, Laos
60.2 miles West bearing 256° from Vientiane, Viangchan, Laos
74.7 miles West bearing 289° from Udon Thani, Udon Thani, Thailand
Last position: 2016-11-09 05:08:37 EST (109d 13h45m ago)
2016-11-09 17:08:37 ICT local time at Chiang Khan, Thailand [?]
Altitude: 813 ft
Course: 277°
Speed: 23 MPH
Device: Argent Data Systems: OpenTracker (tracker)
Last path: HS4UMA-9>APOTC1 via WIDE1-1,WIDE2-1,qAR,HS4POQ (good)
Positions stored: 12538
Other SSIDs: HS4UMA HS4UMA-2
Stations near current position of HS4UMA-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
E24TRX-59.8 miles 343°2017-02-07 05:29:30 HS4POQ11.3 miles 177°2017-02-26 18:28:05
HS4POQ-1011.3 miles 177°2017-02-26 18:41:44
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