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A Question on Mu?

Larry Naumann #6997 Okay, I have been reading a bunch of stuff on ferrite cores. My main interest right now is xfmrs for EFHW antennas. I see charts with u' and u" (mu' and mu"). I can't seem to find an explanation of what u" is. Can someone enlighten me? Thanks Larry n0sa
Larry Naumann #6998 As usual, I found the answer right after I asked the question. One is lossless permeability the the is lossy permeability. Found the answer in a Fair-Rite printout. Larry n0sa
David F4HTQ All Messages By This Member #6999 Hi Larry, You can found some details on the document linked to this message. David. toggle quoted message Show quoted text -----Message d'origine----- De : [email protected] [mailto:[email protected]] De la part de Larry Naumann Envoyé : jeudi 14 novembre 2019 23:07 ? : [email protected] Objet : [nanovna-users] A Question on Mu? Okay, I have been reading a bunch of stuff on ferrite cores. My main interest right now is xfmrs for EFHW antennas. I see charts with u' and u" (mu' and mu"). I can't seem to find an explanation of what u" is. Can someone enlighten me? Thanks Larry n0sa neosid_Ferrite_Allgemeines_2011.pdf neosid_Ferrite_Allgemeines_2011.pdf
W0LEV All Messages By This Member #7002 ? is the magnetic analog of ε, the dielectric constant. ?0 is the permittivity of free space ε0 is the permeability of free space. The ?r which you are seeking is the relative permitivity of the ferrite (or what ever) and represents a multiplier to ?0. Dave - W?LEV toggle quoted message Show quoted text On Thu, Nov 14, 2019 at 10:07 PM Larry Naumann <n0sa@...> wrote: Okay, I have been reading a bunch of stuff on ferrite cores. My main interest right now is xfmrs for EFHW antennas. I see charts with u' and u" (mu' and mu"). I can't seem to find an explanation of what u" is. Can someone enlighten me? Thanks Larry n0sa -- Dave - W?LEV Just Let Darwin Work Just Think

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