SiTunes announces 5G infrastructure transceiver solutions SiTune, an innovator of RF and mixed-signal SoCs has announced two new products for 5G O-RAN infrastructure hardware solutions including Radio Units (RU) and Distributed Radio Units (dRU) for macro and micro deployments. The devices, IceWings and SnowWings, are said to be the worldâs first multi-standard ultra-wide-band RF transceiver solutions that have been specifically designed to facilitate the virtualization of cellular ecosystem and disaggregation of hardware and software in 5G networks. Both IceWings and SnowWings quad-channel solutions are based on analogue RF and digital RF technology, and are suitable for a wide range of applications in public and private networks.