Source callsign:	N3LH-S
Comment:	RNG0001 440 Voice 433.00000MHz +0.0000MHz
Location:	39°25.20' N 77°17.74' W - locator FM19IK40MT - show map 5.3 km Northeast bearing 67° from Spring Ridge, Frederick County, Maryland, United States [?] 9.9 km East bearing 86° from Frederick, Frederick County, Maryland, United States 60.5 km West bearing 284° from Baltimore, City of Baltimore, Maryland, United States 62.5 km North bearing 339° from Washington, D. C., Washington, D.C., United States
Last position:	2025-12-12 19:41:58 UTC (5h13m ago) 2025-12-12 14:41:58 EST local time at Spring Ridge, United States [?]
Altitude:	3 m
Last path:	N3LH-S>APDG01 via TCPIP*,qAC,N3LH-GS
Positions stored:	18

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.