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 OK4AB-7 - show graphs
Map loading...
Comment: 438.075MHz D-STAR>OK4AB B op.Jarda TH
Mic-E message: Off duty
Location: 49°58.34' N 14°17.26' E - locator JN79DX43MI - show map - static map
2.7 km Northwest bearing 301° from Černošice, Středočeský Kraj, Czech Republic [?]
5.0 km North bearing 346° from Všenory, Středočeský Kraj, Czech Republic
16.0 km Southwest bearing 217° from Prague, Hlavní Mesto Praha, Czech Republic
136.3 km Southeast bearing 134° from Chemnitz, Direktionsbezirk Chemnitz, Saxony, Germany
Last position: 2021-05-17 20:19:03 UTC (244d 23h54m ago)
2021-05-17 22:19:03 CEST local time at Černošice, Czech Republic [?]
Altitude: 339 m
Course: 184°
Speed: 0 km/h
Device: Kenwood: TH-D74 (ht)
Last path: OK4AB-7>TYUX34 via WIDE1-1,WIDE2-1,qAR,OK1KZE-1 (good)
Positions stored: 19
Other SSIDs: OK4AB OK4AB-10 OK4AB-2 OK4AB-5 OK4AB-8 OK4AB-9 OK4AB-B OK4AB-N OK4AB-R OK4AB-Y
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