U5303A 12-bit PCIe® digitizer supports BB1 application option that enhances performance by compensating ADC and front-end distortion, minimizing interleaves spurs, and reducing overall noise bandwidth. This results in improved and uniform measurement fidelity across useful bandwidth to benefit RF and wireless frequency domain measurements. Also, post processing compensation lends to optimized SFDR and intermodulation product specifications. Achievable DAQ length is up to 64 MS/channel.