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Topband: 1:4 Guanella (current) balun experiences ?

To: topband@contesting.com
Subject: Topband: 1:4 Guanella (current) balun experiences ?
From: Thomas Herrmann <DL1AMQ@web.de>
Date: Mon, 03 Nov 2008 12:05:07 +0100
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Are there available any good experiences with 1:4 Guanella (current) balun, 
consisting of 2 separated coax air coils (1:1 baluns) on TopBand with high 
power ?

Do the coils should have any coupling (capacitive or inductive) ?
Are air coils useful instaed of ferrite core coils ?
Are coils of 50 ohm coax useful or should I use 100 ohm wire to transform ~ 200 
ohm into ~ 50 ohm ?

Thank You in advance.
73 de Thomas, DL1AMQ




     
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