Comment:	145.475MHz 1669 EMS UDONTH
Location:	17°25.36' N 102°46.66' E - locator OK17JK31HK - show map 1.2 km Northwest bearing 312° from Udon Thani, Udon Thani, Thailand [?] 22.3 km East bearing 91° from Kut Chap, Udon Thani, Thailand 63.3 km South bearing 163° from Vientiane, Viangchan, Laos
Last position:	2025-08-06 12:25:13 UTC (2d 4h32m ago) 2025-08-06 19:25:13 +07 local time at Udon Thani, Thailand [?]
Altitude:	146 m
Course:	145°
Speed:	28 km/h
Device:	Open Source: APRSdroid (app, Android)
Last path:	HS4YQG-5>APDR16 via TCPIP*,qAC,T2FINLAND
Positions stored:	17949
Other SSIDs:	HS4YQG-1 HS4YQG-9 HS4YQG-4 HS4YQG

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.