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Hi,

at first you talk about 1kHz only

then two frequencies 100Hz and 1kHz

In the photos we see a lot of frequencies between 100Hz and 20kHz

Now you say we vary the frequency from 100Hz to 1MHz

This is anything else than consitant information

I don´t know what to focus on.

What is true, what is not?

I better leave this thread ... than to annoy by repeatedly asking for clear informations.

Klaus