Our RFSoC book introduces Zynq Ultrascale+ RFSoC, a technology that brings real, single-chip Software Defined Radio (SDR) to the marketplace. RFSoC devices are the first adaptive SoCs (Systems-on-Chip) to monolithically integrate multiple RF signal chains along with Arm application and real-time, multicore processors and programmable logic. RFSoC is not so much a radio on a chip, but almost an ent