Source callsign:	BG4SF-S
Comment:	70cm Voice (D-Star) 438.35000MHz -5.0000MHz
Location:	31°07.80' N 121°06.00' E - locator PM01ND21AE - show map 9.1 km West bearing 254° from Zhaoxiang, Shanghai Shi, China [?] 10.6 km Southwest bearing 219° from Chonggu, Shanghai Shi, China 35.6 km West bearing 253° from Shanghai, Shanghai Shi, China 129.1 km Northeast bearing 44° from Hangzhou, Zhejiang Sheng, China
Last position:	2025-11-23 07:57:21 UTC (6d 20h19m ago) 2025-11-23 15:57:21 CST local time at Zhaoxiang, China [?]
Altitude:	3 m
Last path:	BG4SF-S>APDG01 via TCPIP*,qAC,BG4SF-GS
Positions stored:	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.