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QPSK Modulation (Real time experiment)
1)The bandwidth of QPSK signal is ______ the bandwidth of BPSK signal.

2)The constellation diagram of QPSK has ______ points

3)QPSK sends ______ bits of digital information at a time.

4)The amount of radio frequency required to transmit QPSK reliably is ______ that required for BPSK signals. 

5)How many carrier frequencies are used in QPSK? 


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