Yes. And even more important -- the word "balun" is used to describe so
many (at least) ten different very kinds of components that the word
itself should be banned from our language. ONE of those components is a
common mode choke. Another is an array of common mode chokes. Another is
a simple transformer. Another is a simple autotransformer. Another is a
section of transmission line. Another is an array of sections of
transmission line. Another is an active device to put broadband video on
twisted pair. And so on.
73, Jim K9YC
On Sun,10/25/2015 12:32 PM, Bob McGraw - K4TAX wrote:
My take on this is baluns are baluns and common mode chokes are common
mode chokes. In many cases baluns do not provide adequate common mode
choking requirements. Thus both may be needed. Usually, the balun is
located physically at the load and the common mode choke is located at
the source. In certain antenna configurations, a balun is used at
the feed point along with a common mode choke and then a 2nd common
mode choke at the source is required as well.
73
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