> 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.
I knew a lot of competitive signals from 203BA antennas "in the day."
While a lot of people went for the 204BA (24' boom) and 205BA (32'
boom), the 16 boot boom 203BA (same boom length as the 3 element
SteppIR) or stack of 203/153/103 was head and shoulders above the
TA-33/TH-3/ATB4 class of station.
73,
... Joe, W4TV
On 2/24/2011 8:52 PM, Mike wrote:
> 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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