I've just started getting into this using SDR. Although I cannot design and build such low cost high performance digital receivers, I do have a lot of control

I've just started getting into this using SDR. Although I cannot design and build such low cost high performance digital receivers, I do have a lot of control over: - software: I can make my own DSP pipelines for demodulation and filtering - antenna: building antennas is completely approachable, using bits of wire, terminal blocks and basic tools - RF input chain: analogue filters and amplifiers to cleanse the signal coming in