Antennas: ARRL Antenna Compendium for the layman. Antenna Theory and Design by Stutzman and Theile for a textbook. Books by Constantin Balanis or John Krauss

Antennas: ARRL Antenna Compendium for the layman. Antenna Theory and Design by Stutzman and Theile for a textbook. Books by Constantin Balanis or John Krauss are good too. Modern Antenna Design by Milligan for a practicing engineer reference book. DSP: Understating Digital Signal Processing by Richard Lyons is a excellent as it has theory and practicality. Discrete-time Signal Processing by Oppenheim and Schafer for a textbook. I don't know what would be a practicing reference book as I'm a hardware guy. Comms theory: Digital Communications by Sklar for a textbook. SDR: SDR covers such a broad area, you need a little of everything. RF hardware, DSP, FPGA/HDL, comms theory, python/C++ programming This looks really good, but I have never read it: https://www.analog.com/en/education/education-library/software-defined-radio-for-engineers.html https://www.analog.com/en/education/education-library/softwa... I keep notes here for when you want to build GR from source (though I have not used GR 3.8 yet): https://rfpoweramp.com/category/sdr/gnu-radio/ https://rfpoweramp.com/category/sdr/gnu-radio/