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 4S6MKM-5 - show graphs
Comment: https://aprsdroid.org/
Location: 7°54.28' N 81°07.70' E - locator NJ07NV57JC - show map
14.5 km East bearing 103° from Polonnaruwa, North Central, Sri Lanka [?]
42.8 km East bearing 97° from Sigiriya, Central, Sri Lanka
75.0 km South bearing 189° from Trincomalee, Eastern Province, Sri Lanka
86.8 km Northeast bearing 39° from Kandy, Central, Sri Lanka
Last position: 2025-07-22 17:12:01 UTC (6d 18h44m ago)
2025-07-22 22:42:01 +0530 local time at Polonnaruwa, Sri Lanka [?]
Altitude: -48 m
Course:
Speed: 0 km/h
Device: Open Source: APRSdroid (app, Android)
Last path: 4S6MKM-5>APDR16 via TCPIP*,qAC,T2SWEDEN
Positions stored: 4106
Other SSIDs: 4S6MKM 4S6MKM-10
Stations which heard 4S6MKM-5 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