Any simple L network isolated from ground is such an animal.
73
Peter
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Hans
Hammarquist
As a true balanced tuner frequently is just that, an unbalanced antenna will
still cause common mode current in the feed line with a current in the coax
feed to the tuner.
What I understand (and many with me) the "best" approach is to add several
toroid rings on the coax feed to the tuner, and as close to the tuner as
possible. The control cable (if it is a remotley controlled tuner) should be
included in the toroids as well.
The "problem" is that many of us think that a "balanced tuner" is a tuner
with a "floating" output (that would not allow commonn mode current through
the tuner). That would solve man yRFI problems but I have yet to find such
an animal.
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