In some implementations, a satellite gateway includes a set of modulators comprising (i) a first modulator to modulate signals for transmission using a first of multiple polarizations, and (ii) a second modulator to modulate signals for transmission using a second of the multiple polarizations. The satellite gateway includes a set of upconverters comprising at least one upconverter for each of the multiple polarizations, wherein each of the upconverters is configured to generate a radiofrequency output by concurrently upconverting multiple intermediate frequency inputs to different frequency ranges. The satellite gateway includes an intermediate frequency distribution network configured to distribute the multiple intermediate frequency output signals from each of the modulators to the inputs of the upconverters. The satellite gateway includes a set of radiofrequency switches that are operable to selectively provide the radiofrequency outputs of the upconverters to antenna feeds for the multiple polarizations.