Location:	39°46.34' N 77°44.58' W - locator FM19DS05UI - show map 2.4 km Southwest bearing 213° from Greencastle, Franklin County, Pennsylvania, United States [?] 15.0 km Southeast bearing 114° from Mercersburg, Franklin County, Pennsylvania, United States 110.7 km Northwest bearing 299° from Baltimore, City of Baltimore, Maryland, United States 114.8 km Northwest bearing 328° from Washington, D. C., Washington, D.C., United States
Last position:	2026-01-22 16:30:27 UTC (12m35s ago) 2026-01-22 11:30:27 EST local time at Greencastle, United States [?]
Last WX report:	2026-01-22 16:30:27 UTC (12m35s ago) – show weather charts 10.6 °C 45% 1018.6 mbar 0.0 m/s Northeast
Device:	Unknown: Unknown
Last path:	EW9743>APRS via TCPXX*,qAX,CWOP-3
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.