Exactly right, and that's in the N6BV QST article to which I referred.
73, Jim
On Sat,4/9/2016 12:04 PM, Richard (Rick) Karlquist wrote:
Note that differential mode dissipation is strictly due to
conductor losses in the windings, and doesn't depend on the core.
It's mainly an issue because the windings concentrate the
heat in a small area. Also, it's not just the mismatch that
matters, but whether the choke is at a high current or low
current location, assuming low loss dielectric is used.
For example, a balun used to feed a 1 wavelength long dipole
will have low differential mode dissipation because the
dipole impedance is high (low current).
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