In this paper the research on realization of transmitter for optimal signals which provide high spectral efficiency without significant energy losses is done. HackRF One is chosen as a transmitter. Experiments showed that peak-to-average power ratio (PAPR) of transmitted sequence is higher than theoretical both in case of “classic” signals with rectangular envelope form and optimal ones (with and without restriction on peak-to-average power ratio). It is caused by parasitic amplitude modulation. However, experimental values of PAPR of optimal signals are less than ones of “classic” signals due to absence of transient processes. In future works BER performance of implemented transmitter will be estimated.