Grande archivio storico del radioascolto in Banda Tropicale 60 e 90 metri

Da un po’ di tempo girava nell’aria un’idea formidabile. Un amico che lascero’ per ora anonimo ma con un blog consultabile da tutti, mi parlava del suo grande archivio fonografico di ascolti storici. Radioascoltatore, radioamatore e qualcosa in piu’ da molto tempo, uomo di grande esperienza tecnica e umana, ha accumulato negli anni, anzi nei […]

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  • Solar-Terrestrial Data

  • Solar Status


    PropagationStats

    Add PropagationStats to your ham radio site.
    Radio blackouts are graded on a scale of R1 to R5 as follows:
    Radio Blackouts Descriptor
    R5 Extreme
    R4 Severe
    R3 Strong
    R2 Moderate
    R1 Minor
    Solar flux is a measurement of the intensity of solar radio emissions with a wavelength of 10.7 cm (a frequency of about 2800 MHz).
    The value broadcast is in solar flux units that range from a theoretical minimum of about 50 to numbers larger than 300.
    The A and K indices are a measurement of the behavior of the magnetic field in and around the earth.
    The K index uses a scale from 0 to 9 to measure the change in the horizontal component of the geomagnetic field.


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