Source callsign:	W4JJ-S
Comment:	70cm Voice (D-Star) 432.50000MHz +0.0000MHz
Location:	38°51.76' N 77°05.67' W - ตำแหน่ง FM18KU87PA - show map 6.2 km ตะวันตกเฉียงใต้ bearing 234° มาจาก Washington, D. C., Washington, D.C., United States [?] 9.0 km เหนือ bearing 342° มาจาก Belle Haven, Fairfax County, Virginia, United States 10.6 km เหนือ bearing 355° มาจาก Groveton, Fairfax County, Virginia, United States 63.2 km ตะวันตกเฉียงใต้ bearing 221° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-01-04 23:12:38 UTC (194d 10h50m ago) 2025-01-04 18:12:38 EST เวลาท้องถิ่น Washington, D. C., United States [?]
Altitude:	3 m
Last path:	W4JJ-S>APDG01 via TCPIP*,qAC,W4JJ-GS
Positions stored:	1
Others sourced by W4JJ-S:	W4JJ C

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.