On 12/12/16 10:36, various people wrote:
What might it cost of someone made and sold a filter like this?
[....] http://www.qsl.net/wm5z/qex199907.pdf
[...] the wrong one can hurt badly. It's not as
simple as looking at what the filter is presenting, there's also the
effects of matching circuits going back to the drains.
With the hf bands being mostly narrow frequency segments, it should be
possible to tweak the filters for optimum results.
Why all the hand-wringing with this? Surely a basic Pi output circuit
would work well, and would be miles simpler?
Steve
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