I had a 3 ele Steppir and a 2 ele 40m yagi (Cushcraft 402CD) on the same mast.
The 40m yagi was 10' above and offset 90 degrees. Results were fantastic.
The Steppir had the 40m dipole so I was able to A/B the two and of course, the
2 ele always won. On weak signals, the 40m yagi heard signals that the Steppir
could not.
Definitely worth doing. Hope this helps.
73,
Ed NI6S
> On Oct 25, 2018, at 2:30 PM, "john@kk9a.com" <john@kk9a.com> wrote:
>
> The boom is only a factor if you're mounting the antennas 90 degrees
> apart. You did not mention that you are doing this plus you also mentioned
> retracting the elements which is not a factor if 90 degrees apart. So, if
> your question is does a 90° 32' SteppIR boom effect 40m, I would say no.
>
> John KK9A
>
>
>
> To: <Towertalk@contesting.com>
> Subject: [TowerTalk] SteppIR interaction with 40m beam.
> From: <kstover@ac0h.net>
> Date: Wed, 24 Oct 2018 19:06:54 -0500
> List-post: <mailto:towertalk@contesting.com>
> Hello all.
>
> I seriously considering a 4el SteppIR 20-6m and a JK Antenna's JK402T with
> the 402T above the SteppIR around 20 feet.
> Obviously the elements of the SteppIR aren't going to be a problem for the
> 40m beam as they can be set to a non-resonant length, but the 32' boom might
> be (1/4 wavelength on 40m).
> Anybody with a 4el SteppIR and a shorty 40 notice and interaction?
>
> Thanks
>
> R. Kevin Stover AC0H
>
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