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APRS station WB9PDX-9 - show graphs
Mic-E message: In service
Location: 42°13.59' N 88°18.20' W - locator EN52UF34OI - show map
1.9 km Southeast bearing 147° from Crystal Lake, McHenry County, Illinois, United States [?]
5.4 km Southwest bearing 246° from Oakwood Hills, McHenry County, Illinois, United States
68.2 km Northwest bearing 308° from Chicago, Cook County, Illinois, United States
95.9 km South bearing 200° from Milwaukee, Milwaukee County, Wisconsin, United States
Last position: 2025-06-24 17:24:59 UTC (15d 2h9m ago)
2025-06-24 12:24:59 CDT local time at Crystal Lake, United States [?]
Altitude: 282 m
Course: 144°
Speed: 11 km/h
Device: Yaesu: FTM-510D (rig)
Last path: WB9PDX-9>T2QS5Y via qAO,N9MXT-1
Positions stored: 1666
Other SSIDs: WB9PDX
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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