"K7ITM" wrote in message
...
On Apr 7, 8:36 am, "Antonio Vernucci" wrote:
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On the other hand, I'm surprised by the comment from the manufacturer
about difficulties making a 1:1 balun. I have had good luck using
ferrites and/or self-resonant coils of feedline and/or coils of
feedline specifically resonated with additional capacitance. A 4:1
balun from a "hairpin" of 1/2 wave of coax, arranged symmetrically, is
easy enough to make, but I would not rule out using a 1:1, if it has
advantages for you.

Cheers,
Tom
Also, I think the 4:1 , 1/2 wave would be a voltage balun. I am considering
adding a ferrite 1:1 on the feedline side of the the coax balun. There is
some feedline radiation right now.

Tam/WB2TT