----- Original Message -----
> The SteppIR 3L Yagi has a 16 ft boom.
> This corresponds to 0.46 WL on 10M,
0.34 WL on 15M,
0.23 WL on 20M.
> The SteppIR can be optimized for each band
> given it's FIXED boomlength, but remember that
> for full optimization ALL parameters (including
> Boomlength) must be varied.
Is there any antenna made today you can vary the boom length on ?
> This is NOT the case with the SteppIR antenna.
Nor with any antenna. At least with the SteppIR you can vary the element
lengths for all five of the bands it covers.
( 10-12-15-17-20 )(plus 6 meters)
On 20M, it's F/B can be made to be near optimum. On 15M,
> it can achieve good gain and intermediate F/B,
> on 10M it can achieve good gain but LOW F/B
> as originally stated.
I think the SteppIR is the first step in the right direction in a transition of
antenna's! Down the road I'm sure will come boom length adjustment.