NI PXI/PCI-5401/5411/5431
Frequency Hopping and Sweeping

You can define a staging list for performing frequency hops and sweeps. The entire staging list uses the same waveform loaded into the lookup memory. All stages differ with the frequency generated.

Note  The minimum time that a frequency should generate is 3 µs. Therefore, the maximum hop rate from frequency to frequency is 333 kHz.

The maximum number of stages that the instruction FIFO can store for Direct Digital Synthesis mode is 512.