Question : Audio signal cannot be transmitted because
A. the signal has more noise
B. the signal cannot be amplified for distance communication
C. the transmitting antenna length is very small to design
D. the transmitting antenna length is very large and impracticable
Answer:D
Question : Audio signal cannot be transmitted because
A. the signal has more noise B. the signal cannot be amplified for distance communication C. the transmitting antenna length is very small to design D. the transmitting antenna length is very large and impracticable