For a given data rate, the bandwidth $\mathrm{B}_{p}$ of a $\text{BPSK}$ signal and the bandwidth $\text{B}_{0}$ of the $\mathrm{OOK}$ signal are related as
- $\mathrm{B}_{p}=\frac{\mathrm{B}_{0}}{4}$
- $\text{B}_{p}=\frac{\text{B}_{0}}{2}$
- $\mathrm{B}_{p}=\mathrm{B}_{0}$
- $\text{B}_{p}=\text{2B}_{0}$