Source callsign:	BI4PGN-S
Comment:	70cm Voice (D-Star) 438.89500MHz +0.0000MHz
Location:	40°01.21' N 116°22.98' E - locator ON80EA54XU - show map 12.6 km North bearing 354° from Beijing, Beijing, China [?] 22.4 km Northwest bearing 305° from Tongzhou, Beijing, China 118.9 km Northwest bearing 325° from Tianjin, Tianjin Shi, China
Last position:	2025-09-29 19:53:28 UTC (29d 14h47m ago) 2025-09-30 03:53:28 CST local time at Beijing, China [?]
Altitude:	3 m
Last path:	BI4PGN-S>APDG01 via TCPIP*,qAC,BI4PGN-GS
Positions stored:	718
Others sourced by BI4PGN-S:	BI4PGN H BI4PGN M BI4PGN W BI4PGN Z

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.