OptiQwave 8900 is a large-scale backbone digital microwave system that can provide 8 xGbE or 4 x 10GbE or 16 x STM-1 high-capacity backbone network throughput. The OptiQwave 8900 advanced digital modulation and demodulation design provides software-selectable digital modulation solutions in a single platform. The 128 QAM can be selected for high system gain, and the 4096 QAM can be selected for high spectral efficiency. As customer capacity demands continue to increase, fiber optic installation may be costly and taking time. Digital microwave can be quickly deployed as a protection and backup route for optical networks, forming a very effective IP/TDM transmission network.