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 HS1HTW-7 - show graphs
Comment: 145.000MHz Good day...
Location: 13°47.27' N 100°40.69' E - locator OK03IS19JB - show map
2.1 km North bearing 339° from Saphan Sung, Bangkok, Thailand [?]
6.4 km Southwest bearing 243° from Min Buri, Bangkok, Thailand
19.4 km East bearing 79° from Bangkok, Bangkok, Thailand
22.7 km Northeast bearing 23° from Samut Prakan, Samut Prakan, Thailand
Last position: 2025-12-29 07:22:52 UTC (4d 18h39m ago)
2025-12-29 14:22:52 +07 local time at Saphan Sung, Thailand [?]
Altitude: -34 m
Course: 248°
Speed: 9 km/h
Device: Open Source: APRSdroid (app, Android)
Last path: HS1HTW-7>APDR16 via WIDE1-1,qAR,HS1HTW-7 (good)
Positions stored: 429239
Other SSIDs: HS1HTW-9 HS1HTW-2 HS1HTW-1 HS1HTW HS1HTW-5 HS1HTW-4
Last heard a station directly: 2025-11-09 08:24:57 UTC (54d 17h37m ago)
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