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 HS4HDH-6 - show graphs
Comment: Ranger_Radio_145.375MHz
Location: 16°11.00' N 102°27.97' E - locator OK16FE53WX - show map
9.6 km Northwest bearing 308° from Mancha Khiri, Khon Kaen, Thailand [?]
13.2 km Northeast bearing 33° from Khok Pho Chai, Khon Kaen, Thailand
48.9 km Southwest bearing 233° from Khon Kaen, Khon Kaen, Thailand
62.4 km Northeast bearing 48° from Chaiyaphum, Chaiyaphum, Thailand
Last position: 2026-01-29 14:19:11 UTC (10d 13h57m ago)
2026-01-29 21:19:11 +07 local time at Mancha Khiri, Thailand [?]
Altitude: 187 m
Course: 36°
Speed: 0 km/h
Device: Anytone: AT-D878 (ht)
Last path: HS4HDH-6>APAT81 via WIDE1-1,qAR,HS4HDH-1 (good)
Positions stored: 356
Other SSIDs: HS4HDH-1 HS4HDH-9
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