E8D03 - Amateur Extra Class

E8D03 : Which describes spread spectrum frequency hopping?
A If interference is detected by the receiver, it will signal the transmitter to change frequencies
B RF signals are clipped to generate a wide band of harmonics which provides redundancy to correct errors
C A binary bit stream is used to shift the phase of an RF carrier very rapidly in a pseudorandom sequence
D Rapidly varying the frequency of a transmitted signal according to a pseudorandom sequence
Correct Answer: Rapidly varying the frequency of a transmitted signal according to a pseudorandom sequence