User`s guide

Signal Analyzer Mode 4
E6651A User’s Guide 61
Frequency Menu
Press Frequency on the Front Panel to access the Frequency
Menu. The Frequency Menu is used to adjust
frequency- related values including Center Frequency,
Frequency Offset, Resolution Bandwidth (RBW) and Channel
Bandwidth (CBW), SPAN using the Knob or Numeric Keys.
Figure 34 Frequency Menu
Center Frequency Select to adjust the Center Frequency using the Numeric Keys
or the Knob.
Frequency Offset Select to adjust the Frequency Offset. Frequency Offset can
be enabled in the Modulation Accuracy Analysis Window, as
described in “Modulation Analysis" on page 64.
RBW Select to adjust the Resolution Bandwidth. Resolution
Bandwidth is used to control the sampling frequency within
the displayed range.
CBW Select to adjust the Channel Bandwidth. Channel Bandwidth
refers to the bandwidth containing 99% of the total input
power for the signal.
SPAN Use to adjust the frequency range shown on the display
screen.