Comment:	https://aprsdroid.org/
Location:	39°50.35' N 116°18.85' E - locator OM89DU71QJ - show map 10.4 km Southwest bearing 223° from Beijing, Beijing, China [?] 13.2 km North bearing 354° from Daxing, Beijing, China 107.1 km Northwest bearing 317° from Tianjin, Tianjin Shi, China
Last position:	2025-12-21 03:59:55 UTC (1d 1h16m ago) 2025-12-21 11:59:55 CST local time at Beijing, China [?]
Altitude:	53 m
Position ambiguous:	Precision reduced at transmitter by 1 digits, position resolution approximately 185.0 m.
Course:	139°
Speed:	2 km/h
Device:	Open Source: APRSdroid (app, Android)
Last path:	ZJS-4>APDR17 via TCPIP*,qAC,T2HK
Positions stored:	3

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.