Sudden Ionospheric Disturbance Monitor (SID), Dourbes.

geographic coordinates: longitude = 4.5971938 latitude = 50.0984719

Display:
GQD, Anthorn (NATO), UK, 22 kHz | HWU, Rosnay, France, 20.9 kHz | GBZ, Anthorn, UK, 19.6 kHz

Section:Ionosphere and Space Weather
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