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APRS station W4OPA-9 - show graphs
Location: 45°27.03' N 122°34.74' W - locator CN85RK08MC - show map
3.8 km West bearing 276° from Happy Valley, Clackamas County, Oregon, United States [?]
4.8 km Northwest bearing 303° from Sunnyside, Clackamas County, Oregon, United States
11.1 km Southeast bearing 137° from Portland, Multnomah County, Oregon, United States
21.9 km South bearing 163° from Vancouver, Clark County, Washington, United States
Last position: 2025-06-09 19:08:46 UTC (10h14m ago)
2025-06-09 12:08:46 PDT local time at Happy Valley, United States [?]
Course:
Speed: 30 km/h
Last path: W4OPA-9>HAPPYV via WIDE2-1,qAR,HAPPYV (good)
Positions stored: 1096
Other SSIDs: W4OPA-8 W4OPA-7 W4OPA-5 W4OPA-i
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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