Location:	39°09.79' N 76°30.60' W - locator FM19RD89TD - show map 4.2 km Northeast bearing 51° from Green Haven, Anne Arundel County, Maryland, United States [?] 8.1 km Northeast bearing 40° from Pasadena, Anne Arundel County, Maryland, United States 16.6 km Southeast bearing 148° from Baltimore, City of Baltimore, Maryland, United States 54.3 km Northeast bearing 57° from Washington, D. C., Washington, D.C., United States
Last position:	2026-02-15 00:49:12 UTC (7d 17h5m ago) 2026-02-14 19:49:12 EST local time at Green Haven, United States [?]
Last path:	N3TJK-7>API52 via DSTAR*,qAR,W3DHS-C
Positions stored:	16
Other SSIDs:	N3TJK-B N3TJK N3TJK-5 N3TJK-9

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.