to get the IF frequency, take the frequency from Lyngsat and subtract the LNB LO which I assume is 10750
so lets say Lyngsat shows 11900
11900-10750=1150 IF frequency
so in your above, 1070 would be 1070+10750=11820
If its C-Band then its 5150 - frequency
so C-Band if its 4040 it wouold be 5150-4040=1110
or if you want to be adventurous, hover the mouse on Lyngsat over the frequency and look in the bottom left corner. It shows the IF frequency