Source callsign:	BG4CLH-S
Comment:	440 Voice 434.55000MHz +0.0000MHz
Location:	31°10.22' N 121°32.30' E - locator PM01SE40OV - show map 9.1 km East bearing 108° from Xuhui, Shanghai Shi, China [?] 9.6 km Southeast bearing 127° from Shanghai, Shanghai Shi, China 10.4 km East bearing 72° from Changqiao, Shanghai Shi, China 90.8 km East bearing 99° from Suzhou, Jiangsu Sheng, China
Last position:	2026-01-20 12:21:21 UTC (16m21s ago) 2026-01-20 20:21:21 CST local time at Xuhui, China [?]
Last path:	BG4CLH-S>APDG01 via TCPIP*,qAC,BG4CLH-GS
Positions stored:	2659

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.