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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

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


Antenna switch arduino for icom IC-7300

Antenna switch arduino for icom IC-7300 A solution built around an arduino nano and one of the readily available four relay switching boards

Antenna helix per oscar 100

Antenna helix per oscar 100 Helix antenna diametro 4 mm- 6 spre su diametro di 40 mm- con spire distanziate tra loro di 25 mm

30 Volt Computer Power Supply Stack

30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground