Multiple Choice
Which modulation scheme is preferred for direct sequence spread spectrum process?
A) bpsk
B) qpsk
C) bpsk & qpsk
D) none of the mentioned
Correct Answer:
Verified
Correct Answer:
Verified
Q6: In US AMPS, 416 channels are allocated
Q7: If the FDMA channel is not in
Q8: _ is undesired RF radiation.<br>A)intermodulation frequency<br>B)intermediate frequency<br>C)instantaneous frequency<br>D)instrumental
Q9: TDMA systems transmit in a continuous way.
Q10: The processing gain is given as_ modulation scheme.<br>A)wss/r<br>B)r/wss<br>C)wss/2r<br>D)r/2wss
Q12: Because of_ transmissions in TDMA, the handoff process
Q13: Which system allows larger processing gain?<br>A)direct sequence<br>B)frequency
Q14: TDMA allocates a single time per frame
Q15: The bandwidth of FDMA channel is<br>A)wide<br>B)narrow<br>C)large<br>D)zero
Q16: Fast frequency hopping is<br>A)several modulations per hop<br>B)several