How to Create Custom I/Q Waveforms

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Essential Vector Signal Generator
+ Essential Vector Signal Generator
Essential Vector Signal Generator
+ Essential Vector Signal Generator

Create Custom Radio Frequency (RF) Test Signals

Standard-compliant signal generation is often enough for basic transmitter and receiver checks, but many real test environments require something more flexible. Engineers may need to recreate a nonstandard burst, stress a receiver with a custom modulation profile, validate behavior under a unique spectral condition, or reproduce a waveform that comes from simulation, captured data, or a proprietary format. In those cases, the ability to create and load custom baseband I/Q content becomes an important part of the RF workflow.

Vector signal generators are well suited to this type of work because they support receiver parametric testing across modern wireless and RF workflows, while providing the RF and baseband signal-generation capabilities needed to create, transfer, and play back custom waveforms. When paired with a practical waveform-building and download process, they give engineers a straightforward way to move from signal creation on a PC to repeatable RF playback on the bench.

Custom I/Q Waveform Solution

Creating and downloading custom I/Q waveforms for RF test requires a signal-generation workflow that can turn software-based baseband data into stable, repeatable RF playback for validation, characterization, and troubleshooting. Keysight Essential Vector Signal Generators help engineers generate application-specific RF signals when predefined waveform libraries do not fully match the device, standard variant, or validation objective. The workflow begins by creating baseband I/Q data in software, formatting the waveform correctly, and transferring it into the instrument for stable RF playback. Combined with PathWave Signal Generation Software, this approach offers a practical balance of flexibility and accessibility, giving teams a straightforward path from waveform design to RF output and helping engineers build repeatable tests without being limited to preset signal formats.
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