[TowerTalk] SteppIR gain

[Joe Subich, K4IK]

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