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It looks like you have an antenna that's marketed under several brand names, Orca & Lava being quite common. Sadly this antenna and it's variants have a poor reputation. Common complaints are like yours, poor or non-existent documentation & support. Other common reports cite poor construction and durability problems. Finally, the advertising claims of extreme long range performance are often challenged by real world experience.
That said, I don't think the elements are supposed to touch at the center. I'm basing that conclusion on advertising photos of the product... I won't waste my money on this type antenna.
Still, I wish you success. Some users have been able to get acceptable reception with this type of antenna.
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