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  1. O

    setting feed horn - again

    I have to adjust the feedhorn and the scalar ring of a Zinwell lnbf. Has the focal point to be 1/4" inside the mouth of the feedhorn, or this is correct only for a Chaparral feedhorn ? In other words, every lnbf/feedhorn is different or 1/4 inch inside the mouth of the feedhorn is always...
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