National Instruments announces seven signal generators for applications from DC to microwave. The RF and microwave signal generators extend PXI to 6.6 GHz for continuous-wave (CW) sourcing, common tunable local oscillator (LO) and stimulus-response applications. All seven generators use direct digital synthesis (DDS) for high-resolution frequency hopping or phase-continuous sweeping for characterization applications. With the NI PXI-5652 6.6 GHz RF and microwave signal generator, the NI PXI-5651 3.3 GHz RF signal generator and the NI PXI-5650 1.3 GHz RF signal generator, engineers can set up sophisticated stimulus-response or tracking-generator applications using the NI PXI-5660 RF vector signal analyzer and the company’s LabVIEW graphical development environment. They are appropriate for clocking non-standard sample rates, such as WCDMA signals at baseband or intermediate frequency (IF).