Keysight N9935BU/238 Time Gating Option

Overview

The Keysight N9935BU/238 Time Gating option for FieldFox spectrum analyzers measures the spectrum of periodic signals during specified time intervals. Using gated FFT methodology, it isolates signal components within a defined time window while excluding extraneous data. This is particularly useful for analyzing pulsed RF signals where measurements during the pulse period are desired while ignoring transitions or off-period noise. The option also enables exclusion of periodic transient interference. This option requires option 233.

Key Features

• Gated FFT for time-windowed spectrum measurement
• Measures periodic signals during specified intervals
• Isolates pulse-period measurements from transitions and off-periods
• Excludes periodic transient interference

Applications

• Pulsed RF signal measurement and characterization
• Transient interference exclusion and analysis
• Periodic signal spectrum measurement
• RF and microwave signal testing with time-domain constraints