The Dominion Radio Astrophysical Observatory in Penticton, British Columbia, measures 2800-MHz (10.7-cm) solar-flux data daily at local noon. Solar flux correlates well with the intensity of ionizing UV
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Solar flares and sunspot cycles impact shortwave radio propagation. Read how solar flare-induced blackouts and SSN affect radio propagation on Earth.
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Unusual solar geomagnetic activity frequently results in anomalous radio propagation conditions. On this page, we will discuss metrics that can be used to quantify and explain
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A solar flare causes an immediate radio blackout due to X-rays hitting the D-layer. A CME causes a delayed geomagnetic storm due to particles hitting the magnetosphere.
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Solar data plotting utility WA4TTK offers this program (v3.01), which is said to update solar flux and sunspot number databases automatically when it scans new propagation bulletins
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Understanding the solar six-band radio wave enhances our ability to predict how solar activities affect terrestrial technologies and communication
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Solar cycle 25 began in December 2019 and already has produced many radio bursts and magnetic disturbances in the 20 months since then. The cycle is in full swing, and it is time to review the types
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HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact. Navigation: Low-frequency
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