Don
I agree that the BL2 is a true current balun using a balanced design
that chokes common mode currents while also transforming impedances to
ease a conjugate match - albeit one of the ratios is 1:1 - but my
coax-through-ferrite-beads unbalanced common mode choke *only* does what
it says on the tin without any impedance transformation, hence my quotes
around 'balun'.
Without it, the 1.8MHz common mode noise pickup from my abject antenna
siting is about S5/6 but with it the noise is S1/2. I leave it to the
atu to transform complex impedance.
73, Pete F5VNB
Don Wilhelm wrote:
Pete, Brian and all,
The BL2 *is* a current choke 'balun' - both in the 4:1 and the 1:1
configuration.
73,
Don W3FPR
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