Comment:	440 MMDVM Voice 438.57500MHz +0.0000MHz, W4BTK_Pi-Star
Location:	38°55.14' N 77°34.24' W - ตำแหน่ง FM18FW10MN - show map 8.0 km ตะวันออก bearing 78° มาจาก Bull Run Mountain Estates, Prince William County, Virginia, United States [?] 13.2 km ตะวันออกเฉียงเหนือ bearing 26° มาจาก Haymarket, Prince William County, Virginia, United States 46.3 km ตะวันตก bearing 273° มาจาก Washington, D. C., Washington, D.C., United States 92.4 km ตะวันตกเฉียงใต้ bearing 244° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-03-18 11:10:52 UTC (266d 7h31m ago) 2025-03-18 07:10:52 EDT เวลาท้องถิ่น Bull Run Mountain Estates, United States [?]
Altitude:	0 m
Device:	Jonathan, G4KLX: ircDDB Gateway (D-Star)
Last path:	W4BTK-N>APDG03 via TCPIP*,qAC,T2PERTH
Positions stored:	3
Other SSIDs:	W4BTK-9 W4BTK

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.