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 OK1CMJ-15 - show graphs
Comment: 0 RX_Igate_LoRA by OK1CMJ iGate
Last status: https://github.com/ok5tvr/LoRa_RX_Igate
Location: 49°34.69' N 13°52.67' E - locator JN69WN58IS - show map
2.8 km South bearing 160° from Rožmitál pod Třemšínem, Středočeský Kraj, Czech Republic [?]
5.7 km Northwest bearing 294° from Březnice, Středočeský Kraj, Czech Republic
40.6 km Southeast bearing 117° from Plzeň, Plzeňský Kraj, Czech Republic
68.7 km Southwest bearing 215° from Prague, Hlavní Mesto Praha, Czech Republic
Last position: 2026-01-28 09:57:59 UTC (3d 23h37m ago)
2026-01-28 10:57:59 CET local time at Rožmitál pod Třemšínem, Czech Republic [?]
Last telemetry: 2026-01-28 10:03:02 UTC (3d 23h32m ago) – show telemetry
RxPkts: 6 Pkts, RF->Inet: 6 Pkts, DX_dist.: 0 km, live: 11 min., Temp_core: 53.330 C
Device: Unknown: Experimental
Last path: OK1CMJ-15>APZ023 via TCPIP*,qAC,T2CZECH
Positions stored: 2
Other SSIDs: OK1CMJ-5 OK1CMJ-7 OK1CMJ-12 OK1CMJ-1 OK1CMJ-6 OK1CMJ-14 OK1CMJ-16 OK1CMJ-10
Last heard a station directly: 2026-01-28 05:22:55 UTC (4d 4h12m ago)
Normal receiver range estimate: 70 km (Updated: 2025-08-31 23:18:24 UTC)
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