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E4E09

Why is an antenna with a cardioid pattern desirable for a direction-finding system?

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AThe broad-side responses of the cardioid pattern can be aimed at the desired station
BThe deep null of the cardioid pattern can pinpoint the direction of the desired station
CThe sharp peak response of the cardioid pattern can pinpoint the direction of the desired station
DThe high-radiation angle of the cardioid pattern is useful for short- distance direction finding