Source callsign:	G4MHJ-S
Comment:	70cm Voice (D-Star) 434.47500MHz +0.0010MHz
Location:	51°28.57' N 0°08.92' E - lokaator JO01BL74UG - show map 12.2 km Idast peiling 73° from Catford, Greater London, England, United Kingdom [?] 17.1 km Idast peiling 104° from City of London, Greater London, England, United Kingdom 19.1 km Idast peiling 69° from Biggin Hill, Surrey, England, United Kingdom 19.3 km Idast peiling 101° from London, Greater London, England, United Kingdom
Last position:	2025-09-07 20:06:39 UTC (14m49s ago) 2025-09-07 21:06:39 BST local time at Catford, United Kingdom [?]
Altitude:	3 m
Last path:	G4MHJ-S>APDG01 via TCPIP*,qAC,G4MHJ-GS
Positions stored:	18
Others sourced by G4MHJ-S:	G4MHJ Q

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.