W4EF writes:
> I have been thinking the same thing, Kelly. I think a 3
> element SteppIR with 13.9 MHz parastitic elements and a the
> 6.9 MHz MonsterIR driven element would be a big hit. Rotary
> dipole performance on 40 and 30, and 3 element yagi performance
> on 20, 17, 15, 12, 10. Great for a 1/8 to 1/4 acre suburban lot.
I've pitched this idea to Mike Mertel several times ... the
problem is the change in impedance between the rotary dipole
mode (40/30) and yagi mode (20/17/15/12/10/6). It would be
necessary to switch the impedance of the matching transformer
(2.25:1 as a beam, 1:1 as a dipole). Unfortunately, three is
no provision to do that either in the driven element or the
controller.
Like you, I think it would be a "hands down" winner for a great
many users ... as long as they can handle the ca. 34' turning
radius.
73,
... Joe, K4IK
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Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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