Exercise: Communication Systems

Questions for: Communication Systems

If Vs is signal voltage, Vn is noise voltage, signal to noise ratio S/N is defined as
A:
B:
C:
D:
none of the above
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Which of the following is very useful as multiband HF receiving antenna?
A:
Square loop
B:
Conical horn
C:
Folded dipole
D:
Log-periodic
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
If N is the number of binary digits needed to assign individual binary code designations to the M quantization levels, the signal to quantization noise ratio S0/Nq in PCM is
A:
2N
B:
22N
C:
D:
24N
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
VLF waves are sometimes used because
A:
they penetrate the ionosphere easily
B:
they are very reliable
C:
they require low power
D:
they require transmitting antennas of convenient sizes
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The main advantage of TDM over FDM is that it
A:
needs less power
B:
needs less bandwidth
C:
needs simple circuitry
D:
gives better S/N ratio
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz