Which of the following formulas can be used to derive dBi values from dBd values? admin 9 years ago Which of the following formulas can be used to derive dBi values from dBd values? A.dBi=dBd+2.41 B.dBi=dBd+2.14 C.dBi=dBd+.241 D.dBi=dBd+21.4 ← Previous question Next question →