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APRS station KQ4RIV-4 - show graphs
Comment: SAG4
Location: 39°04.71' N 78°17.77' W - locator FM09UB48KU - show map
5.8 km North bearing 347° from Middletown, Frederick County, Virginia, United States [?]
6.8 km West bearing 265° from Stephens City, Frederick County, Virginia, United States
105.3 km West bearing 282° from Arlington, Arlington County, Virginia, United States
110.7 km West bearing 281° from Washington, D. C., Washington, D.C., United States
Last position: 2025-08-23 17:07:29 UTC (8d 23h43m ago)
2025-08-23 13:07:29 EDT local time at Middletown, United States [?]
Course: 304°
Speed: 78 km/h
Device: aprs.fi: iPhone/iPad app (app, ios)
Last path: KQ4RIV-4>APFII0 via WIDE1-1,WIDE2-1,qAR,W4VA-13 (good)
Positions stored: 9
Other SSIDs: KQ4RIV-i KQ4RIV-7 KQ4RIV-9
Last heard a station directly: 2025-08-23 16:41:40 UTC (9d 9m ago)
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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