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
Location: 50°04.25' N 14°24.92' E - locator JO70EB96UX - show map
1.1 miles South bearing 191° from Staré Město, Hlavní Mesto Praha, Czech Republic [?]
1.2 miles South bearing 191° from Prague, Hlavní Mesto Praha, Czech Republic
1.3 miles South bearing 158° from Malá Strana, Hlavní Mesto Praha, Czech Republic
73.9 miles Southeast bearing 156° from Dresden, Direktionsbezirk Dresden, Saxony, Germany
Last position: 2025-01-24 16:43:18 EST (6h28m ago)
2025-01-24 22:43:18 CET local time at Staré Město, Czech Republic [?]
Course: 348°
Speed: 0 MPH
Device: R3ABM: BrandMeister DMR
Last path: OK4MD>APBM1D via DMR*,qAS,DL3OCK-12 (good)
Positions stored: 172913
Other SSIDs: OK4MD-1 OK4MD-12 OK4MD-14 OK4MD-4 OK4MD-N OK4MD-2 OK4MD-15 OK4MD-3 OK4MD-5 OK4MD-21 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 04:09:40 EDT (206d 20h2m ago)
Stations near current position of OK4MD - show more
callsign distance last heard - EST      callsign distance last heard - EST
OK1HBP-12288.8 yards 331°2025-01-14 09:29:40 DW57851.2 miles 303°2025-01-24 23:11:12
OK1TI-121.2 miles 48°2025-01-15 10:13:00 OKHCS-11.3 miles 296°2025-01-18 01:39:21
OK0HCS-11.3 miles 296°2025-01-24 22:59:57 OK0HCS B1.4 miles 304°2025-01-24 23:07:18
OK0HCS-B1.4 miles 304°2025-01-24 23:07:28 OK1TRU-71.4 miles 28°2025-01-21 12:16:30
OK1FXF1.5 miles 138°2025-01-10 10:19:31 2704550001.6 miles 10°2025-01-02 19:48:59
2704530001.6 miles 11°2025-01-20 16:00:05 OK7W1.7 miles 146°2025-01-24 22:57:50
438.950PR1.7 miles 65°2025-01-24 23:11:38 438.950HR1.7 miles 65°2025-01-21 00:42:08
CERTIK-151.8 miles 18°2025-01-23 22:17:57 OK9HAP-72.0 miles 340°2025-01-18 16:56:34
pda_dm-i2.0 miles 297°2025-01-08 15:48:54 EW92022.1 miles 152°2025-01-24 23:00:38
OK8NA-72.3 miles 12°2025-01-07 11:12:41 OK1RQ2.3 miles 354°2025-01-24 22:43:13
Stations which heard OK4MD directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
OK1KZE-1 154 2025-01-02 07:46:33 2025-01-23 02:49:06 JO70GB > JN79AS 30.3 miles 230° 2025-01-05 07:33:17
OK1TI-10 4 2025-01-05 06:56:15 2025-01-05 08:15:14 JO70FB > JN79DV 12.0 miles 210° 2025-01-05 06:59:38
OK0BAD-2 11 2025-01-02 07:46:37 2025-01-22 18:54:10 JO70GB > JN79AS 30.0 miles 228° 2025-01-05 07:38:03
OK7W 3 2025-01-21 01:15:32 2025-01-23 02:45:57 JO70GB > JO70FB 3.4 miles 257° 2025-01-21 01:16:18
OK0HCS-1 13 2025-01-02 09:38:03 2025-01-10 08:48:00 JO70GB > JO70EB 6.5 miles 280° 2025-01-04 07:28:30
OK1KZE-10 6 2025-01-03 05:35:14 2025-01-03 06:33:17 JN79EX > JN79FX 3.7 miles 116° 2025-01-03 05:35:14
OK2ZAW-17 11 2025-01-02 09:38:06 2025-01-10 08:48:04 JO70DA > JO80FG 96.6 miles 79° 2025-01-03 05:30:45
OK1COM 12 2025-01-05 07:02:47 2025-01-05 07:41:09 JO70FB > JO70GB 3.6 miles 70° 2025-01-05 07:11:30
OK1LPD-2 1 2025-01-03 05:36:58 2025-01-03 05:36:58 JN79EX > JN79DW 4.2 miles 210° 2025-01-03 05:36:58
OK4MD-5 110 2025-01-02 07:50:11 2025-01-22 18:59:47 JO70FA > JO70FA 0.4 miles 97° 2025-01-18 09:34:50
OK1SE-12 8 2025-01-03 05:37:19 2025-01-08 06:37:13 JN79EW > JO70EA 4.9 miles 16° 2025-01-08 06:18:14
OK2JIB-10 1 2025-01-03 03:56:24 2025-01-03 03:56:24 JO70BD > JO60XN 29.1 miles 345° 2025-01-03 03:56:24
OK1HBP-15 13 2025-01-03 03:30:16 2025-01-10 17:39:23 JO70GB > JO70EA 6.9 miles 250° 2025-01-05 07:16:43
OK0BNH-1 76 2025-01-02 08:12:14 2025-01-10 08:22:45 JO70CD > JN79DV 16.8 miles 168° 2025-01-03 03:47:06
DMR 1328 2025-01-02 08:13:56 2025-01-24 16:43:18 OL63MA > JN99MT 5182.7 miles 318° 2025-01-18 14:21:45
OK4MD-21 54 2025-01-02 09:55:18 2025-01-10 17:44:41 JO70FA > JO70FA 1.0 miles 188° 2025-01-09 02:44:10
OK4MD-4 15 2025-01-05 10:49:11 2025-01-21 16:09:12 JO70FA > JO70FA 0.4 miles 101° 2025-01-18 09:33:47
OK0DPH-10 5 2025-01-04 06:16:18 2025-01-10 08:25:30 JO70GA > JO70GA 1.0 miles 232° 2025-01-04 07:21:18

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