Comment:	@udp://www.49city.club:60050,NRL互联服务器
Last status:	在线:3,高峰:35,四九城业余无线电
Location:	39°52.20' N 116°23.40' E - ตำแหน่ง OM89EU68TT - show map 4.2 km ใต้ bearing 188° มาจาก Beijing, Beijing, China [?] 18.3 km ตะวันตก bearing 258° มาจาก Tongzhou, Beijing, China 105.3 km ตะวันตกเฉียงเหนือ bearing 320° มาจาก Tianjin, Tianjin Shi, China
Last position:	2025-12-23 16:21:32 UTC (1m54s ago) 2025-12-24 00:21:32 CST เวลาท้องถิ่น Beijing, China [?]
Last path:	BI1LWV-10>NRLSRV via TCPIP*,qAS,BI1LWV
Positions stored:	13
Other SSIDs:	BI1LWV-7

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.