Location:	38°43.70' N 89°55.12' W - ตำแหน่ง EM58AR94ST - show map 3.1 km ตะวันตก bearing 268° มาจาก Troy, Madison County, Illinois, United States [?] 3.3 km ตะวันออก bearing 81° มาจาก Maryville, Madison County, Illinois, United States 26.7 km ตะวันออกเฉียงเหนือ bearing 65° มาจาก Saint Louis, City of Saint Louis, Missouri, United States 121.6 km ใต้ bearing 191° มาจาก Springfield, Sangamon County, Illinois, United States
Last position:	2025-06-12 02:38:32 UTC (178d 9h46m ago) 2025-06-11 21:38:32 CDT เวลาท้องถิ่น Troy, United States [?]
Device:	Icom: IC-5100 (D-Star)
Last path:	KD9ZDP>API510 via DSTAR*,qAR,K0MDG-C
Positions stored:	38
Other SSIDs:	KD9ZDP-9 KD9ZDP-7 KD9ZDP-4 KD9ZDP-i

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.