Vector Signal Generation Methodologies

The SSG5000X-V vector signal generators provide IQ modulated signals on carrier in 2 ways. First, they can use external I and Q inputs. These are analog inputs with typical bandwidth of 200 MHz. I and Q are put in separately. This is ideal for IQ data easily expressed in the time domain. A 2 channel waveform generator like a SDG1000X Plus can provide signals in the MHz range that are then expressed as IQ on the carrier. To reach the full bandwidth capability of the IQ generator, you would need a more powerful generator like a SDG6032X which can pulse at 150 MHz. Any of these generators can produce arbitrary waveforms that are phase aligned across channels for proper IQ modulation. Arbitrary waves can be created using EasyWaveX free software or can be created programmatically or imported from a csv file. Make sure the arbitrary memory depth supports the full length of your needed waveform at a high sample rate.

The other option is to use the internal generator built into the SSG5000X-V. The internal baseband channels can provide a sample rate up to 120 MHz or 240 MHz with the B150 option. That creates RF bandwidth of up to 150 MHz. The arbitrary waveform memory of the internal generator is up to 200 million points. The internal generator can be loaded using the higher level SigIQPro software. Instead of defining waveforms in the time domain, use this software to define modulation schemes in the RF domain and the software creates and loads the underlying IQ data like so: 

Signal Generation Option Table: