Comment:	https://aprsdroid.org/
Location:	39°35.10' N 75°58.62' W - ตำแหน่ง FM29AO20SJ - show map 1.3 km เหนือ bearing 352° มาจาก Charlestown, Cecil County, Maryland, United States [?] 3.5 km ตะวันตกเฉียงใต้ bearing 241° มาจาก North East, Cecil County, Maryland, United States 63.6 km ตะวันออกเฉียงเหนือ bearing 59° มาจาก Baltimore, City of Baltimore, Maryland, United States 80.6 km ตะวันตกเฉียงใต้ bearing 240° มาจาก Philadelphia, Philadelphia County, Pennsylvania, United States
Last position:	2025-06-18 02:00:22 UTC (172d 19h25m ago) 2025-06-17 22:00:22 EDT เวลาท้องถิ่น Charlestown, United States [?]
Altitude:	-15 m
Course:	276°
ความเร็ว:	4 km/h
Device:	Open Source: APRSdroid (app, Android)
Last path:	KC3VUZ-7>APDR16 via TCPIP*,qAC,T2PRT
Positions stored:	2

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.