Source callsign:	SR4DOS
Comment:	438.862MHz DOFF -760 SR4DG
Location:	53°33.00' N 19°56.56' E - ตำแหน่ง JO93XN32CA - show map 9.7 km ตะวันตก bearing 276° มาจาก Gierzwałd, Powiat ostródzki, Warmian-Masurian Voivodeship, Poland [?] 13.7 km ตะวันออก bearing 68° มาจาก Lubawa, Powiat iławski, Warmian-Masurian Voivodeship, Poland 123.0 km ตะวันออกเฉียงใต้ bearing 136° มาจาก Gdańsk, Gdańsk, Pomeranian Voivodeship, Poland 141.7 km ตะวันออกเฉียงใต้ bearing 139° มาจาก Gdynia, Gdynia, Pomeranian Voivodeship, Poland
Last position:	2025-11-23 06:12:10 UTC (16m36s ago) 2025-11-23 07:12:10 CET เวลาท้องถิ่น Gierzwałd, Poland [?]
Last path:	SR4DOS>APMI06 via qAR,SR5ZU
Positions stored:	2
Others sourced by SR4DOS:	145.625OQ 438.575OQ

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.