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
Map loading...
Comment: 438.625MHzTH-D72
Mic-E message: En route
Location: 49°58.33' N 14°17.25' E - locator JN79DX43MH - show map - static map
296.5 yards West bearing 264° from Třebotov, Středočeský Kraj, Czech Republic [?]
1.7 miles Northwest bearing 300° from Černošice, 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: 2017-02-05 19:17:42 EST (18d 3h24m ago)
2017-02-06 01:17:42 CET local time at Třebotov, Czech Republic [?]
Altitude: 1171 ft
Course: 30°
Device: Kenwood: TH-D72 (ht)
Last path: OK4AB-9>TY5X33 via OK0BAD-2,OK0BBK-2*,WIDE2-1,qAR,OK1KHL-1,T2CZECH (good)
Positions stored: 31642
Other SSIDs: OK4AB-10 OK4AB-7
Stations near current position of OK4AB-9 - show more
callsign distance last heard - EST      callsign distance last heard - EST
L2224781_2.7 miles 251°2017-01-29 07:55:13 OK1LPD-62.7 miles 139°2017-02-23 22:35:56
L22247812.7 miles 253°2017-01-29 08:29:00 OK1LPD2.7 miles 139°2017-02-07 14:19:28
OK2MDM2.7 miles 139°2017-02-06 11:35:27 OK1LCD-62.7 miles 139°2017-02-23 21:57:56
OK1LCD-102.7 miles 139°2017-02-21 17:29:23 OK1LND2.7 miles 139°2017-02-07 12:43:33
OK1LPD-92.7 miles 139°2017-02-23 11:24:08 OK1LCD-92.7 miles 139°2017-02-23 06:56:50
OK4PZ2.9 miles 188°2017-02-18 16:46:35 M1914182_2.9 miles 167°2017-02-14 08:12:29
M19141822.9 miles 166°2017-02-14 08:11:29 OK0NCC-B3.9 miles 129°2017-02-23 22:40:30
ER-OK0BNH4.0 miles 180°2017-02-23 22:35:19 OK1TI-104.1 miles 172°2017-02-12 11:37:27
OK1LPD-24.3 miles 181°2017-02-23 22:37:13 OK1LOL-24.3 miles 264°2017-02-23 22:40:52
OK1LOL-34.3 miles 263°2017-02-23 22:41:14 OK1COM-144.3 miles 263°2017-02-23 22:41:15
Stations which heard OK4AB-9 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
OK1LOL-2 19 2017-02-05 10:28:20 2017-02-05 11:42:35 JN79DX > JN79CX 4.3 miles 263° 2017-02-05 10:47:44
OK1KZE-1 22 2017-02-04 08:31:36 2017-02-04 09:35:10 JN79DX > JN79FX 6.2 miles 87° 2017-02-04 08:44:20
OK1LPD-2 141 2017-02-04 08:09:34 2017-02-05 19:16:51 JN79DX > JN79DV 4.3 miles 182° 2017-02-04 09:33:16
OK0BAD-2 442 2017-02-04 08:10:26 2017-02-05 19:17:41 JN79DX > JN79AS 17.4 miles 222° 2017-02-05 10:45:51

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.
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