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-9 - show graphs
Comment: OK4AB- op.JARDA FTM 350
Mic-E message: Off duty
Location: 49°58.34' N 14°17.26' E - locator JN79DX43MI - show map
1.7 miles Northwest bearing 301° from Černošice, Středočeský Kraj, Czech Republic [?]
3.1 miles North bearing 346° from Všenory, Středočeský Kraj, Czech Republic
9.9 miles Southwest bearing 217° from Prague, Hlavní Mesto Praha, Czech Republic
84.7 miles Southeast bearing 134° from Chemnitz, Direktionsbezirk Chemnitz, Saxony, Germany
Last position: 2025-02-03 13:10:45 EST (2d 18h29m ago)
2025-02-03 19:10:45 CET local time at Černošice, Czech Republic [?]
Altitude: 1122 ft
Course: 346°
Speed: 2 MPH
Device: Yaesu: FTM-350 (rig)
Last path: OK4AB-9>TYUX34 via WIDE1-1,WIDE2-1,qAR,OK1KZE-1 (good)
Positions stored: 136307
Other SSIDs: OK4AB-6 OK4AB OK4AB-B OK4AB-N OK4AB-7 OK4AB-8 OK4AB-5 OK4AB-10
Stations near current position of OK4AB-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
OK4AB0.0 yards 0°2025-02-06 07:15:14 OK4AB B12.5 yards 90°2025-02-03 15:22:11
OK4AB-B12.5 yards 90°2025-02-03 15:22:21 OK4AB-N12.5 yards 90°2025-02-03 15:22:01
OK4AB-512.5 yards 90°2025-01-24 17:41:05 OK4AB-612.5 yards 90°2025-02-06 07:24:50
OK4AB-720.7 yards 0°2025-02-02 11:36:56 OK4AB-825.8 yards 90°2025-01-31 06:37:46
OK1LPD-62.7 miles 139°2025-02-06 07:36:51 OK1LPD-102.7 miles 139°2025-02-06 07:23:43
OK2MDM-82.7 miles 139°2025-02-04 06:22:23 OK2MDM-Y2.7 miles 139°2025-01-31 12:27:30
OK1LPD-22.7 miles 140°2025-02-06 07:31:02 OK1LCD-92.7 miles 139°2025-01-30 10:59:20
OK2MDM2.8 miles 140°2025-02-06 06:19:44 OK1LCD-82.8 miles 140°2025-02-05 08:05:18
OK1FET-43.2 miles 138°2025-02-06 07:37:26 OK1LCD-34.1 miles 264°2025-02-06 07:29:32
OK1TI-104.3 miles 174°2025-02-06 07:14:09 OK0BNH-24.3 miles 181°2025-02-06 06:33:56
Stations which heard OK4AB-9 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
OK1KZE-1 13 2025-02-02 11:39:02 2025-02-03 13:10:45 JN79DX > JN79FX 6.0 miles 87° 2025-02-03 13:10:45
OK1TI-10 48 2025-02-01 04:53:25 2025-02-03 09:38:31 JN79DX > JN79DV 4.3 miles 174° 2025-02-02 05:30:43
OK0BAD-2 41 2025-02-01 04:43:25 2025-02-03 12:48:58 JN79DX > JN79AS 17.3 miles 221° 2025-02-02 05:30:43
OK0BNH-2 6 2025-02-01 11:47:47 2025-02-02 11:45:30 JN79DX > JN79DV 4.3 miles 181° 2025-02-02 11:45:30
OK4AB-7 50 2025-02-02 05:01:36 2025-02-02 12:19:24 JN79DX > JN79DX 287.9 yards 170° 2025-02-02 05:07:10

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