NI 5671/5672 CW Generation Mode Tuning Speed Factors

In CW generation mode, NI-RFSG automatically creates the phase-continuous sine waveform needed for the specified frequency.

In CW mode, the frequency step size (desired frequency minus previous frequency) contributes to the tuning time. The upconverter module has different tuning times for various frequency step sizes.

Typically, the largest delay in tuning to a new frequency is the time it takes the upconverter module to lose lock on the current frequency and acquire lock on the new frequency. Depending on the step size, the upconverter module takes different amounts of time to lock to new frequencies.