Each RF-ADC channel can sample signals in the first or second Nyquist zones. To ensure the RF-ADC performance is optimal the RF-ADC configuration settings should indicate the intended zone of operation.
- First Nyquist zone is defined as a signal between 0 and Fs/2
- Second Nyquist zone is defined as a signal between Fs/2 and Fs
Other Nyquist zones can also be used as long as the signal meets the RF-ADC input bandwidth requirements. Zones 1, 3, 5, ... are referred to as odd zones, and zones 2, 4, ... are referred to as even zones.