Comment:	[业余无线电4G-APRS]设备:*4214 信号:31 卫星:27/28
Last status:	DIY+4G-APRS
Location:	39°52.28' N 116°15.51' E - locator OM89DU19AC - show map 12.5 km West bearing 251° from Beijing, Beijing, China [?] 16.1 km Southeast bearing 118° from Mentougou, Beijing, China 113.0 km Northwest bearing 316° from Tianjin, Tianjin Shi, China
Last position:	2025-12-16 09:52:31 UTC (1d 2h44m ago) 2025-12-16 17:52:31 CST local time at Beijing, China [?]
Altitude:	54 m
Course:	180°
Speed:	48 km/h
Last path:	BI1SAM-4G>APRS4G via TCPIP*,qAC,T2TAIPEI
Positions stored:	14008
Other SSIDs:	BI1SAM-5G BI1SAM-9 BI1SAM BI1SAM-10 BI1SAM-R BI1SAM-1

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.