The positive and negative of the calculated LNB skew are wrong

[xmh0511]

With the same longitude and latitude, other calculations all give a negative of a specified value. However, in v8 finder2, it just gives a positive number of the specified value. The scales on the left side of the 0 scale are defined as negative numbers and the scales on the right side of 0 scale are defined as positive numbers. The result of the calculation of v8 finder2 makes the rotation of LNB be wrong.

[Tom.w]

hello
about the orientation, there is indication description is N->E or N->W,S->E,S-W description