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APRS station KJ4ADV-9 - show graphs
Mic-E message: En route
Location: 42°12.85' N 88°17.25' W - locator EN52UF51MJ - show map
3.8 km Southeast bearing 142° from Crystal Lake, McHenry County, Illinois, United States [?]
4.1 km West bearing 273° from Cary, McHenry County, Illinois, United States
66.4 km Northwest bearing 308° from Chicago, Cook County, Illinois, United States
96.8 km South bearing 199° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position: 2025-12-10 20:28:25 UTC (23d 41m ago)
2025-12-10 14:28:25 CST local time at Crystal Lake, United States [?]
Position ambiguous: Precision reduced at transmitter by 1 digits, position resolution approximately 185.0 m.
Course:
Speed: 0 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: KJ4ADV-9>TR1R8Z via WIDE1-1,WIDE2-1,qAO,KB9OIV-2 (good)
Positions stored: 100
Other SSIDs: KJ4ADV-7 KJ4ADV
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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