Source callsign:	N3SRZ-S
Comment:	70cm Voice (D-Star) 445.82500MHz +0.0000MHz
Location:	39°11.34' N 77°12.34' W - locator FM19JE55HI - show map 8.8 km Northwest bearing 334° from Derwood, Montgomery County, Maryland, United States [?] 12.5 km North bearing 339° from Rockville, Montgomery County, Maryland, United States 35.8 km Northwest bearing 336° from Washington, D. C., Washington, D.C., United States 52.3 km West bearing 258° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2024-10-17 23:22:10 UTC (213d 5h58m ago) 2024-10-17 19:22:10 EDT local time at Derwood, United States [?]
Altitude:	3 m
Last path:	N3SRZ-S>APDG01 via TCPIP*,qAC,N3SRZ-GS
Positions stored:	35

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.