Source callsign:	KC3TBC-S
Comment:	70cm Voice (D-Star) 433.30000MHz +0.0000MHz
Location:	39°00.00' N 77°00.00' W - locator FM19MA00AA - show map 8.5 km Southwest bearing 221° from Calverton, Prince George's County, Maryland, United States [?] 9.2 km Southwest bearing 203° from Fairland, Montgomery County, Maryland, United States 12.1 km North bearing 15° from Washington, D. C., Washington, D.C., United States 46.5 km Southwest bearing 226° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-08-12 09:37:03 UTC (18m1s ago) 2025-08-12 05:37:03 EDT local time at Calverton, United States [?]
Altitude:	3 m
Last path:	KC3TBC-S>APDG01 via TCPIP*,qAC,KC3TBC-GS
Positions stored:	3

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.