Comment:	145.400MHz SR4MI . SR4M . 145.400
Location:	53°51.75' N 21°17.75' E - locator KO03PU57LA - show map 640.2 m West bearing 251° from Mrągowo, Powiat mrągowski, Warmian-Masurian Voivodeship, Poland [?] 12.0 km North bearing 346° from Piecki, Powiat mrągowski, Warmian-Masurian Voivodeship, Poland 53.4 km East bearing 80° from Olsztyn, Warmian-Masurian Voivodeship, Poland 106.7 km Southeast bearing 151° from Kaliningrad, Kaliningrad, Russia
Last position:	2025-05-30 17:36:58 UTC (27d 11h2m ago) 2025-05-30 19:36:58 CEST local time at Mrągowo, Poland [?]
Position ambiguous:	Precision reduced at transmitter by 1 digits, position resolution approximately 185.0 m.
Device:	Open Source: APRSdroid (app, Android)
Last path:	SQ4NMR-7>APDR16 via TCPIP*,qAC,T2PRT
Positions stored:	156
Other SSIDs:	SQ4NMR-10 SQ4NMR-9 SQ4NMR-5 SQ4NMR

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.