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E9H07

Why is it advisable to use an RF attenuator on a receiver being used for direction finding?

Select	Answer
A	It narrows the bandwidth of the received signal to improve signal to noise ratio
B	It prevents receiver overload which could make it difficult to determine peaks or nulls
C	It compensates for the effects of an isotropic antenna, thereby improving directivity
D	It reduces loss of received signals caused by antenna pattern nulls, thereby increasing sensitivity

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