BPSK Signal in GNURadio

GNU Radio
1

Hello,

I try to make a BPSK Signal from GNURadio and face some problem.

  1. Look at the DPSK_Output picture that I’ve attached, why there are
    harmonic frequency in the DPSK block output signal that make the DPSK
    block output signal not really square? And Any idea to make the signal
    become square? I’ve try to use filter block, but it didn’t work

  2. At the BPSK Signal pict. Why the BPSK signal that I made is not as
    same as the theory about BPSK Signal which the phase changed if the bit
    change?

  3. What should I do to make the BPSK Signal Output looks better? at
    least the signal looks like sinus wave

Thank you so much

Sincerely,

Fauzan

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