Explain what rf bandwidth must the radio link provide

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Reference no: EM13139072

Question about Examination of a digital radio link

A digital radio link is designed to carry a T1 rate digital signal (1.544 Mbps). The transmitter and receiver have ideal RRC bandpass filters with roll off factor (r) = 0.2.

a. What RF bandwidth must the radio link provide if the modulation is binary phase shift keying (BPSK)?

b. The link is unchanged but the modulator and demodulator in the transmitter and receiver are changed to transmit and receive QPSK. The link has the bandwidth you found in part (a) above. What is the maximum bit rate that the link can carry using QPSK modulation?

c. If the filters in the transmitter and receiver are changed for ideal RRC filters with roll off factor (r) = 0.5, what is the maximum symbol rate for this link?

Reference no: EM13139072

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