Panel a: configuration of a 2SB receiver. The RF signal is directed to a first hybrid where it is split into two arms of equal power and 90° phase difference. After down-conversion in two independent mixers driven by the same local oscillator (LO) signal, the resulting signals are fed into an IF hybrid. If perfect balance is achieved, the resulting signals correspond to the lower and upper sidebands. Panel b: schematics of the configuration presented in this paper. An analog receiver combines the (down-converted) upper sideband and lower sideband signals with different gains while the digital part recombines them in such a way that the upper sideband and lower sideband signals are recovered at the outputs. The calibration constants ĉ_i are determined through calibration as described in the text. We highlight that this scheme is independent of whether the analog part contains an IF hybrid or not. In other words, when no hybrid is present, IF ports 1 and 2 correspond to ports I and Q.