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APRS station W4FMD-4 - show graphs
Comment: QRV 146.79 Fairfax
Mic-E message: In service
Location: 38°51.01' N 77°18.29' W - ตำแหน่ง FM18IU34KA - show map
458.7 m เหนือ bearing 17° มาจาก Fairfax, City of Fairfax, Virginia, United States [?]
6.9 km ตะวันตกเฉียงเหนือ bearing 336° มาจาก Burke, Fairfax County, Virginia, United States
23.8 km ตะวันตก bearing 258° มาจาก Washington, D. C., Washington, D.C., United States
77.2 km ตะวันตกเฉียงใต้ bearing 231° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-03-09 13:12:40 UTC (93d 14h10m ago)
2025-03-09 09:12:40 EDT เวลาท้องถิ่น Fairfax, United States [?]
Course: 138°
ความเร็ว: 0 km/h
Device: Kenwood: TM-D700 (rig)
Last path: W4FMD-4>S8UQ0Q via N4CV-2*,WIDE1*,KN4IJF-1*,WIDE2*,qAR,WC4J (good)
Positions stored: 22033
About this site
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.
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