Comment:	GDD Calling
Location:	31°14.88' N 121°28.97' E - lokaator PM01RF79WM - show map 642.0 m Läände peiling 250° from Hongkou, Shanghai Shi, China [?] 3.7 km Kirdesse peiling 39° from Shanghai, Shanghai Shi, China 3.8 km Edelasse peiling 246° from Yangpu, Shanghai Shi, China 84.5 km Idast peiling 94° from Suzhou, Jiangsu Sheng, China
Last position:	2025-08-19 10:52:35 UTC (15d 1h50m ago) 2025-08-19 18:52:35 CST local time at Hongkou, China [?]
Last path:	BH4GDD-7>APN000 via TCPIP*,qAC,T2OSAKA
Positions stored:	305
Other SSIDs:	BH4GDD-5

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.