Question

The front to back ratio of an antenna which radiates 3kW in its most optimum direction and 500W in the opposite direction is

• A. 7.78 dB
• B. 12.7 dB
• C. 2.3 dB
• D. 3dB

Answer 1

The correct option is A 7.78 dB

$FBR=10log\left(\frac{P_1}{P_2}\right)=7.782dB$