Wireless Test SolutionsAgilent Technologies Wireless Test SolutionsApplication Note 1313IQTesting and Troubleshooting Digital RF Communications Transmitter DesignsIntroductionThe demand for ubiquitous wireless communications is challenging the physical constraints placed upon current wireless communications systems. In addition, wireless customers expect wireline quality from their service providers. Service providers have invested a lot in a very limited slice of the radio spectrum. Consequently, network equipment manufacturers must produce wireless systems that can be quickly deployed and provide bandwidth-efficient communications. At early stages of equipment design, rigorous testing is performed to ensure system interoperability. The increasingly complex nature of digital modulation is placing ad……