This eBook addresses some of the challenges and considerations when developing architectures and components to support these new multi-band, multi-services capabilities. The first article gives a good overview of multi-band microwave direct access using synthetic aperture radars using earth observation applications as an illustration. Articles two through four address how direct data converters and other components are enabling software satellites and other multi-band, multi-services transceivers. The final two articles explore using data converters and signal processing, in conjunction with optical interconnects to replace copper in the transport layer. We hope that this eBook gives you a good overview of the possibilities that can be enabled by high performance, direct access, multi-band, multi-services networks.