Communication applications range from simple RFID transponders and keyless entry systems to cell phones and cognitive radios. By using software-defined modular instruments, you can maximize your equipment investment by creating a test system that is both reusable and adaptable to changes in the test device. Scalable from benchtop prototyping to production test, modular instruments are well suited to generate I/Q, IF, and RF signals for your applications. National Instruments offers a suite of modular instruments, including digital I/O, precision DC, audio analyzers, and switches, so you can build a comprehensive communications device test system. The result is an integrated test platform that can keep pace with new innovations.