E9H04 : What is the purpose of placing an electrostatic shield around a small-loop direction-finding antenna?
A
It adds capacitive loading, increasing the bandwidth of the antenna
B
It eliminates unbalanced capacitive coupling to the antennas surroundings, improving the depth of its nulls
C
It eliminates tracking errors caused by strong out-of-band signals
D
It increases signal strength by providing a better match to the feed line
Correct Answer: It eliminates unbalanced capacitive coupling to the antennas surroundings, improving the depth of its nulls