Steven Dick
,
Your posit on turns vs core size is valid to a point.? IF your doing 20M and up 2/14 might
actually be better but for 80M 3/21 or greater might be the winner.
The problem is its a generalized wide band transformer and for 80 to 10M you have
conflicting requirements of primeary impedance, sore saturation (power) and leakage
inductance.
Then add to that 1:49 may not be optimal for a given antenna as installed.? I've
used 1:36 with success for antennas that are electrically low (like 75M at 40ft).
One last item, end point impedance is at often a guess and rarely measured.
Also like the common center fed half wave dipole? Feed point impedance is?
relative to its electrical height.??
Allison
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