This document presents a transceiver prototype designed for wireless transmission through human tissue with high speed and low power consumption. Baseband signal processing techniques, such as Manchester line code with memory and raised cosine filter, are used for 4PSK, 16QAM and 64QAM digital modulations. The prototype includes a patch antenna designed with Rogers 3003 material, simulated with HFSS software and tested in the anechoic chamber at Javeriana University. Results show the efficiency of the system for sending a digital message through human tissue, with comparisons made for different digital modulation configurations