User`s guide

Agilent X-Series Signal Generators User’s Guide 185

Basic Digital Operation (Option 653/655/656/657)

Clipping a Waveform

Digitally modulated signals with high power peaks can cause intermodulation distortion, resulting in

spectral regrowth that can interfere with signals in adjacent frequency bands. The clipping function

enables you to reduce high power peaks by clipping the I and Q data to a selected percentage of its

highest peak, thereby reducing spectral regrowth.

• How Power Peaks Develop on page 186

• How Peaks Cause Spectral Regrowth on page 188

• How Clipping Reduces Peak–to–Average Power on page 189

• Configuring Circular Clipping on page 192

• Configuring Rectangular Clipping on page 193

Figure 8-8 Clipping Softkeys

Mode > Dual ARB > More

Available only when

clipping type = |I|, |Q|

For details on each key, use key help

as described on page 44.