On Thu, Jun 21, 2012 at 2:59 PM, DAVID CUTHBERT <telegrapher9@gmail.com>wrote:
> The W7NQN line filter is a differential-mode filter. You need a filter that
> is designed for common-mode filtering.
>
> Dave WX7G
This is from the web page advertisement:
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Compare this with a Brand "C" filter which only handles common-mode
interference problems. The NQN AC power-line filters are optimized for
common-mode and differential-mode filtering and have about 3 times the
components of brand "C".
---------
Seems to specifically include common mode.
See http://arraysolutions.com/Products/nqnaclinefilter.htm
73, Guy.
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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