Location:	38°51.45' N 77°09.45' W - ตำแหน่ง FM18KU15CT - show map 7.2 km ตะวันออกเฉียงเหนือ bearing 35° มาจาก North Springfield, Fairfax County, Virginia, United States [?] 8.1 km ตะวันออกเฉียงเหนือ bearing 43° มาจาก Ravensworth, Fairfax County, Virginia, United States 11.3 km ตะวันตก bearing 248° มาจาก Washington, D. C., Washington, D.C., United States 67.3 km ตะวันตกเฉียงใต้ bearing 225° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-03-20 00:26:09 UTC (291d 13h23m ago) 2025-03-19 20:26:09 EDT เวลาท้องถิ่น North Springfield, United States [?]
Device:	Icom: IC-9700 (D-Star)
Last path:	W4JJ>API970 via DSTAR*,qAR,W4HFH-C
Positions stored:	1
Other SSIDs:	W4JJ-9 W4JJ-D W4JJ-7 W4JJ-N

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.