[TowerTalk] SteppIR Defaults

Dennis Vernacchia n6ki73 at gmail.com
Sun Feb 10 15:29:33 EST 2008


Yes, the Homing/Calibration procedure highly recommended but you did not
mention,
are there any other antennas near the steppir, metal roof sheds etc etc ?

Assuming U still have same problem after you do Homing/Calibration procedure
If you fully retract all but the driven element,  see what length works for
20 mtr band
That should give you a clue as to what may be going on....length should be
close to
what a 20 mtr wire horizontal dipole would use.

73, Dennis N6KI
MonstIr SteppIR with NO SWR anomalies

On Feb 10, 2008 6:19 AM, Larry Comden <lcomden at comcast.net> wrote:

> TTers,
>
> I have a 2 ele SteppIP up 50'. The default element lengths require very
> little adjustment on 17, 15, 12 and 10M. But on 20 and 6M they seem to be
> way off indicated by unacceptable SWR of over 3 to 1. Example: the driven
> element for had to lengthened about 12 inches from the default or more than
> 10% to get acceptable SWR in the recent ARRL VHF test. The director was then
> set 5% shorter than the new DE length.
>
> On 20 I've always had to use a tuner to get acceptable SWR
>
> Do not have any gain or F/B values to report.
>
> Has anyone else seen this? Suggestions welcome.
>
> TIA
>
> Larry K3VX
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