The signal processor that decreases all negative dBm power levels and at the same time increases all positive dBm power levels is:
A) a linear amplifier
B) a phase-locked loop
C) a signal compressor
D) a signal expander

Question

Quizplus · Accepted Answer

A signal expander increases the dynamic range of a signal, effectively increasing positive dBm power levels and decreasing negative dBm power levels, opposite to a compressor which reduces dynamic range.

The Signal Processor That Decreases All Negative DBm Power Levels