Source callsign:	G4HDK-S
Comment:	440 Voice 438.80000MHz +0.0000MHz
Location:	51°22.20' N 0°47.70' W - ตำแหน่ง IO91OI48OT - show map 197.2 m ตะวันตก bearing 261° มาจาก Crowthorne, Borough of Bracknell Forest, England, United Kingdom [?] 2.6 km เหนือ bearing 347° มาจาก Sandhurst, Borough of Bracknell Forest, England, United Kingdom 48.8 km ตะวันตก bearing 252° มาจาก London, Greater London, England, United Kingdom 51.2 km ตะวันตก bearing 252° มาจาก City of London, Greater London, England, United Kingdom
Last position:	2025-06-29 10:30:32 UTC (3m21s ago) 2025-06-29 11:30:32 BST เวลาท้องถิ่น Crowthorne, United Kingdom [?]
Last path:	G4HDK-S>APDG01 via TCPIP*,qAC,G4HDK-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.