Comment:	HF
Location:	38°46.40' N 77°04.00' W - ตำแหน่ง FM18LS15XO - show map 10.2 km ตะวันออกเฉียงใต้ bearing 147° มาจาก Baileys Crossroads, Fairfax County, Virginia, United States [?] 12.4 km ใต้ bearing 165° มาจาก Arlington, Arlington County, Virginia, United States 13.8 km ใต้ bearing 191° มาจาก Washington, D. C., Washington, D.C., United States 69.6 km ตะวันตกเฉียงใต้ bearing 214° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-02-13 02:11:05 UTC (113d 3h31m ago) 2025-02-12 21:11:05 EST เวลาท้องถิ่น Baileys Crossroads, United States [?]
Altitude:	12 m
Device:	Open Source: APRSdroid (app, Android)
Last path:	W4PI-15>APDR17 via qAR,WA7GMX-2
Positions stored:	2
Other SSIDs:	W4PI-1 W4PI-9 W4PI-10 W4PI-2 W4PI-7

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.