Comment:	146.520MHz https://aprsdro
Location:	38°53.50' N 77°11.50' W - locator FM18JV64XA - show map 1.8 km East bearing 102° from Idylwood, Fairfax County, Virginia, United States [?] 2.5 km South bearing 161° from Pimmit Hills, Fairfax County, Virginia, United States 13.4 km West bearing 268° from Washington, D. C., Washington, D.C., United States 66.8 km Southwest bearing 229° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-07-13 22:47:29 UTC (3d 3h30m ago) 2025-07-13 18:47:29 EDT local time at Idylwood, United States [?]
Altitude:	68 m
Position ambiguous:	Precision reduced at transmitter by 2 digits, position resolution approximately 1.9 km.
Course:	62°
Speed:	4 km/h
Device:	Open Source: APRSdroid (app, Android)
Last path:	K4SEM-9>APDR16 via TCPIP*,qAC,T2DENMARK
Positions stored:	1547
Other SSIDs:	K4SEM-10 K4SEM-5

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.