Comment:	@udp://hd.bd1bln.dpdns.org/:60050,NRL互联服务器
Last status:	在线:0,高峰:1,NRL无线互联测试站
Location:	40°06.17' N 116°23.27' E - locator ON80EC64MQ - show map 19.2 km Southeast bearing 132° from Changping, Beijing, China [?] 21.7 km North bearing 358° from Beijing, Beijing, China 22.0 km West bearing 264° from Shunyi, Beijing, China 126.3 km Northwest bearing 328° from Tianjin, Tianjin Shi, China
Last position:	2026-01-17 15:05:41 UTC (1d 14h5m ago) 2026-01-17 23:05:41 CST local time at Changping, China [?]
Last path:	BD1BLN-1>NRLSRV via TCPIP*,qAS,BD1BLN
Positions stored:	9
Other SSIDs:	BD1BLN-10 BD1BLN-4 BD1BLN-15 BD1BLN-20 BD1BLN BD1BLN-2

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.