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 OK4MD - show graphs
Comment: Martin QRV 145.550
Location: 50°01.56' N 14°25.91' E - locator JO70FA16TF - show map
6.8 km South bearing 173° from Staré Město, Hlavní Mesto Praha, Czech Republic [?]
6.9 km South bearing 173° from Prague, Hlavní Mesto Praha, Czech Republic
7.1 km South bearing 164° from Malá Strana, Hlavní Mesto Praha, Czech Republic
124.0 km Southeast bearing 156° from Dresden, Direktionsbezirk Dresden, Saxony, Germany
Last position: 2025-02-27 12:56:01 UTC (13h43m ago)
2025-02-27 13:56:01 CET local time at Staré Město, Czech Republic [?]
Course: 120°
Speed: 43 km/h
Device: Unknown: Unknown
Last path: OK4MD>APRS via DMR*,qAS,DMR01SW (good)
Positions stored: 174955
Other SSIDs: OK4MD-12 OK4MD-3 OK4MD-14 OK4MD-1 OK4MD-2 OK4MD-N OK4MD-5 OK4MD-15 OK4MD-21 OK4MD-4 OK4MD-9 OK4MD-7 OK4MD-8 OK4MD-6 OK4MD-22 OK4MD-10 OK4MD-11 OK4MD-9 OK4MD-10
Last heard a station directly: 2024-07-02 08:09:40 UTC (240d 18h29m ago)
Stations which heard OK4MD 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