Band-pass signals are used everywhere in radio communications. The band-pass property makes the substitution of each RF/microwave/ optical analog signal processing possible with a low-frequency digital one in Software Defined Electronics (SDE). In SDE. the high frequency band-pass signals are transformed into the BaseBand (BB) by a universal HW device and every application is implemen... https://parisnaturalfoodes.shop/product-category/ornithine/