Fair-Rite has introduced a new low frequency material (#75), I was
wondering if someone could comment if this new material would be better
that #31 for EMI suppression.
According to the Fair-rite web site, #75 shows a higher impedance at
lower frequencies than #31 but above ~2 Mhz the impedance drops off.
While the impedance of #31 seems to continue to increase and the
frequency goes up.
I am planning on ordering some snap-it cores to reduce the noise from
switch mode power supplies, and other sources, I am experiencing on HF
bands. I have already read the documents on the K9YC web site but there
was no info on the new material. I am tempted to stay with #31 due to
it's long time use.
Thanks,
Chuck K9LC
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