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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 06 Feb 2024
4:1 coax balun design Calculator

Toroid & balun Links

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

Balun
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

Welcome to Balun Designs LLC
Enter the frequency of operation and the balanced and unbalanced Z0.Values for L and C will be calculated

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Varie fasi della costruzione di un balun in aria 1:4 per alimentare una antenna long wire tipo canna da pesca o simili


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Satellite Antenna Rotator Controller and TRACker

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Duplexer 2m-70cm

Duplexer 2m-70cm- Usare un'antenna bibanda 2/70 con due radio separate V/UHF, usare due antenne separate V/UHF con una singola radio bibanda