Re: Fighting VHF interference with a DIY balun.
I have often wondered whether this would help so I am seriously interested in this as I have noticed that unwanted multi-paths are coming off our cable, and the 30 year old FM tuner must again work in spite of Heathrow since the DAB tuner has already died, aged 2.
But can you explain exactly how the aerial relates to the coax so that things are unbalanced at that end too? Do you need another balun at the dipole? If not then how does the "unbalanced" state work?
Also, at these frequencies, why do you need a core at all?
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