Topband: To Balun or not to Balun that is the question.
i4jmy at iol.it
i4jmy at iol.it
Wed Dec 31 01:55:50 EST 2003
By the way, depending the diameter of the coil, line lenght, and coil position, I'm afraid those 6 turns are not enough to have a good choke on 20m.
Expecially in cases where a choke is not on a current node, 10 ten times ratio between reactance and 50 Ohm doesn't make at all a good one.
Somewere I've seen claimed only 6 turns over 4" is a good choke for 20m, while it's not.
73 & HNY
Mauri I4JMY
> I do not use baluns below 10 Mhz. On the higher band I only use the 6
> turn coil recommended for feeding my 204BA and other yagis. On yagis a
> reasonably balanced feed is important for pattern symmetry.
>
> Regards,
>
> Herb Schoenbohm, KV4FZ
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