Re: Reliable but reasonably priced sources of ferrite for FSLs?-FARMERIK


Max Italy
 

Hi Gary, i haven't seen your document before, very interesting, same area same performance, this makes everything much easier.
I have read that the length of the rod should not exceed too much the length of the coil in a single rod antenna but this doen't seem to apply here and the tests wipe out any doubt.
You mentioned some Russian rods with permeability 400, i think the others have permeability 125; did you notice any difference caused from different permeability of the ferrite (if you tested ferrites with the same size but different permeability)?

Also i would like to understand how much the type of wire makes the difference. If normal wire is used instead of Litz, can the lower performance be compensated increasing the diameter of the loop?

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