Source callsign:	G3XEF-S
Comment:	440 Voice 434.00000MHz +0.0000MHz
Location:	51°25.59' N 0°06.76' E - locator JO01BK32MI - show map 7.9 km Southeast bearing 155° from Woolwich, Greater London, England, United Kingdom [?] 12.9 km Southeast bearing 137° from Poplar, Greater London, England, United Kingdom 17.1 km Southeast bearing 124° from City of London, Greater London, England, United Kingdom 18.9 km Southeast bearing 119° from London, Greater London, England, United Kingdom
Last position:	2025-05-14 16:14:28 UTC (72d 1h54m ago) 2025-05-14 17:14:28 BST local time at Woolwich, United Kingdom [?]
Altitude:	3 m
Last path:	G3XEF-S>APDG01 via TCPIP*,qAC,G3XEF-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.