Steve, I’m working on the speaker idea also.
Have you found any issue with the speaker’s magnetic fields interfering with the toroids directly below?
I’m doing a half height implementation so if you have issues mine would be worse with the speakers sitting directly on the dev board just 5mm above the toroids.
I’ll probably run through all the tests for each band with and without the speakers just to see what it looks like.
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Randy, N4OPI