If you can do a "stack" for the price of one SteppIR then you also have
the advantage of having a wider take off angle which can make 5-15dB
difference.
I loved my SteppIR Yagi until a wind storm blew an element off and rain
water got in and wrecked a motor. That's when I decided it was too much
maintenance for me.
73,
Dick- K9OM
I would still take the simplicity of a good LP. For that matter you
could stack a pair of T-10's for the price of a single SteppIR, or even a
TH-11, including the cost of a side gate - or spend your money on getting
the T-10 higher.
Gene / W2LU
----- Original Message -----
From: "Mike" <noddy1211@sbcglobal.net>
To: <towertalk@contesting.com>
Sent: Thursday, February 24, 2011 8:52 PM
Subject: Re: [TowerTalk] book Tribander comparison test
> You are dead right it is a "tunable "monobander" and in a classification
> of
> its own really, so nothing to compare with. Even on 20 meters a three
> element Steppir has hardly has anything to compare with as most people
> putting up a monobander for that band would choose a 4 t 6 element
> antenna.
> But it does work better than a 3 element tribander on 20 meters because
it
> tunes the whole band without traps, most short tri-banders are a
> compromise
> on 20 meters anyway.
>
> Mike
>
> -----Original Message-----
>
> > It would be, if they had motors to vary the distance between the
> > elements
>
> Nonsense! Some 30+ years ago W2PV showed that a monobander was a
> monobander no matter what the element spacing as long as the elements
> are properly tuned for their place in the array. Gain is a product
> of boom length as long as there are "enough" elements for the length.
>
> Tapered spacing only effects the bandwidth and feed impedance of the
> antenna and with a SteppIR bandwidth has no meaning since the antenna
> is constantly retuned for the operating frequency.
>
> SteppIR is a tunable "monobander" with a fixed length boom - other
> than the optional fixed length elements for six meters, a SteppIR
> has no traps or parasitic elements whose sole purpose is to allow
> operation on more than one frequency at a time.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 2/24/2011 6:57 PM, Dick NY1E wrote:
>> " As far as the SteppIR, it's a monobander for all practical
>> purposes."
>>
>> It would be, if they had motors to vary the distance between the
> elements... otherwise its a tribander (ok 5 bander) with a good swr!
>>
>> Dick NY1E
>> www.ny1e.com
>>
>>
>>
>> _______________________________________________
>>
>>
>>
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>>
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