I can sorta see this USIA thing in my mind's eye, but would really like
to see and/or hear more about it. Have you got any print refs? If not,
could you describe it in greater detail?
Tnx OM es 73,
Tom Rauch wrote:
> Rather than a Sterba, I suggest using a USIA curtain array. It looks
> like a Sterba, but has parallel feeders. It is a collinear and
> broadside stack of elements, with the feeders brought to a
> common point. The feed arrangement uses more feedlines, but the
> advantage is the parallel feeders allow use over a very wide
> frequency range with no pattern change. It is VERY much more
> forgiving for construction errors or frequency shift. A USIA curtain
> designed for 14 MHz will work on 28 MHz!
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