====== BALUNs & UNUNs ======

  * [[http://www.karinya.net/g3txq/chokes/|Test de différents matériaux pour les filtres coaxiaux en Mode Commun (G3TXQ)]]
  * {{ :documentation:hamradio:antennes:baluns_ununs:g3txq_-_baluns.pdf | G3TXQ - Baluns}}


===== 1:1 =====
==== BALUN DG0SA ====
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===== 4:1 (Voltage Balun)=====

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<WRAP center round important 75%>
À propos des BALUNs 4:1 single / dual core : http://www.dj0ip.de/balun-stuff/1-vs-2-core-baluns/

Les BALUNs single-core sont à proscrire en HF.
</WRAP>

===== 9:1 UNUN =====
Sources :
  * https://vk6ysf.com/unun_9-1.htm
  * https://m0ukd.com/homebrew/baluns-and-ununs/91-magnetic-longwire-balun-unun/

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{{:documentation:antennes:baluns_ununs:unun_9-1_image01.png?600|}}
{{:documentation:antennes:baluns_ununs:unun_9-1_image02.png?600|}}

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{{:documentation:antennes:baluns_ununs:9to1_schematic.jpg?600|}}
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===== 9:1 BALUN =====
Sources :
  * https://vk6ysf.com/balun_9-1.htm

{{:documentation:antennes:baluns_ununs:balun_9-1_image01.png?600|}}
{{:documentation:antennes:baluns_ununs:balun_9-1_image02.png?600|}}
===== 49:1 (EFHW) =====
{{:documentation:hamradio:antennes:baluns_ununs:49-1-unun.jpg|}}
===== 64:1 (EFHW) =====