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 HS8PRF-8 - show graphs
Comment: 12.3V 42C HDOP00.5 SATS17 STOP
Location: 14°00.25' N 100°36.94' E - locator OK04HA31UA - show map
9.8 km North bearing 341° from Sai Mai, Bangkok, Thailand [?]
16.5 km Northwest bearing 299° from Lam Luk Ka, Pathum Thani, Thailand
30.4 km Northeast bearing 24° from Bangkok, Bangkok, Thailand
45.0 km North bearing 3° from Samut Prakan, Samut Prakan, Thailand
Last position: 2025-11-11 01:15:36 UTC (1h4m ago)
2025-11-11 08:15:36 +07 local time at Sai Mai, Thailand [?]
Altitude: 18 m
Speed: 48 km/h
Last telemetry: 2023-06-18 06:43:32 UTC (876d 19h36m ago) – show telemetry
Ch 1: 421, Ch 2: 615, Ch 3: 0, Ch 4: 0, Ch 5: 0
Device: Argent Data Systems: OpenTracker (tracker)
Last path: HS8PRF-8>APOT30 via WIDE1-1,qAR,E22UMT-1 (good)
Positions stored: 194238
Other SSIDs: HS8PRF-2 HS8PRF-3 HS8PRF-1 HS8PRF-10 HS8PRF-11 HS8PRF-7 HS8PRF-4 HS8PRF
Stations which heard HS8PRF-8 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