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Toroid & balun

4:1 coax balun design Calculator


4:1 coax balun design Calculator

Here we calculate the half wave length of the matching section of the 4:1 coax balun. Again the equations are taken from the ARRL Antenna Book
post 20 Apr 2020

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Il diametro di ogni singolo conduttore rosso o nero e' di 2 mm plastica compresa, e di 0.75 mm senza isolante plastico

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For some so-called baluns, no throttling action or effect against common-mode currents will be measurable. This means that sheath waves occur and the coaxial cable outer screen acts as an antenna. Domestic interference fields penetrate unhindered over the alleged balun in the receiver

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Enter the frequency of operation and the balanced and unbalanced Z0.Values for L and C will be calculated

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