Source callsign:	G3JPJ-S
Comment:	70cm Voice (D-Star) 438.80000MHz +0.0000MHz
Location:	51°39.47' N 0°16.23' W - ตำแหน่ง IO91UP77MV - show map 4.6 km ตะวันออกเฉียงใต้ bearing 133° มาจาก Radlett, Hertfordshire, England, United Kingdom [?] 11.1 km ตะวันออกเฉียงใต้ bearing 157° มาจาก Saint Albans, Hertfordshire, England, United Kingdom 19.4 km ตะวันตกเฉียงเหนือ bearing 329° มาจาก London, Greater London, England, United Kingdom 20.3 km ตะวันตกเฉียงเหนือ bearing 323° มาจาก City of London, Greater London, England, United Kingdom
Last position:	2025-06-21 20:49:20 UTC (19m43s ago) 2025-06-21 21:49:20 BST เวลาท้องถิ่น Radlett, United Kingdom [?]
Altitude:	3 m
Last path:	G3JPJ-S>APDG01 via TCPIP*,qAC,G3JPJ-GS
Positions stored:	1
Others sourced by G3JPJ-S:	G3JPJ A G3JPJ E

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.