Arb Waveform Mode Tuning Speed Factors

A user-specified complex I/Q baseband signal is passed to NI-RFSG in Arb Waveform generation mode.

In Arb Waveform mode, the amount of available RAM affects NI RF signal generator tuning time because large waveforms require a large amount of RAM. If sufficient RAM is unavailable, the system uses virtual memory, which dramatically increases execution times.

Note Refer to your device specifications document for specific tuning times.
Tip

The following measures can decrease arbitrary waveform tuning times:

  • Disable phase continuity if your application does not require a phase-continuous signal.
  • Write large waveforms in blocks to avoid exceeding RAM capacity and using virtual memory. NI-RFSG examples demonstrate how to write waveforms in blocks.