1. What is the difference between FFT dynamic range and swept mode dynamic range? How come swept mode dynamic range is much bigger than FFT dynamic range?

2. The ADC in MXA is only 14bit, which means the max dynamic range of ADC is 84dB. However, the swept mode dynamic range of MXA is over 100dB, how to explain this "conflict"?

Thanks.

2. The ADC in MXA is only 14bit, which means the max dynamic range of ADC is 84dB. However, the swept mode dynamic range of MXA is over 100dB, how to explain this "conflict"?

Thanks.

http://cp.literature.agilent.com/litweb ... 2-0292.pdf

In swept mode, autoranging is enabled, what expands the dynamic range. In FFT mode, the AD works with a fixed range.