Summary Guide to Ferrite Mix by Frequency.

[admin]

I don't know who made this little table of the common ferrite mixes, and which is best for which frequency range. Let me know and they'll be credited.

FerriteMixFreq.png

And thank you for a reminder gleaned from a recent QSO, that even the best ferrite is lossy but gives increased bandwidth. So if you are making a balun for a just a single band, maybe consider an air-cored solution instead? They are simple and efficient, have no ferrite heat to dissipate, and there are lots online designs and commercial products to choose from.
The comprehensive balun post here might also interest: viewtopic.php?t=88

[KX4QC]

Ferrite Mix Selection

There's a lot to choosing the right Mix for the application. There is an excellent source of info at the Palomar site:
https://palomar-engineers.com/ferrite-p ... -selection

While it is widely known that different mixes do better at different frequencies, that's not the end of it. This page will help you get the right mix for an inductor, or a choke and most important, why.

IMHO, you could do worse than use one of their combination choke-baluns. Take care to find the right one; they have lots! If in doubt, ask them. Really helpful and expert.