numeric key, step key or knob to switch resolution bandwidth. The
underline under Auto or Manual means Auto mode or Manual
mode. Press [RBW Auto Manual] to have Auto underlined. Then
the resolution bandwidth is under auto coupling mode.
Key points:
⚫ Reducing the value of RBW will increase the frequency
resolution, but may also cause sweeps to take longer (Sweep
Time is affected by a combination of RBW and VBW when it is in
Auto mode).
⚫
RBW decreases with the span (non-zero span) in Auto RBW
mode.
5.5.2 [VBW Auto Man]
Sets the desired video bandwidth in order to remove the band
noise. Set the video resolution displays in function area, ranging
from 10Hz to 30MHz by sequence step. You can modify this
parameter by numeric key, step key or knob. The underline under
Auto or Manual means Auto mode or Manual mode. Press [VBW
Auto Manual] to have Auto underlined to return auto mode.
Key points:
⚫ Reducing the VBW to smooth the spectrum line and differentiate
small signals from the noise. However, this may cause a longer
sweep time. (Sweep Time is affected by a combination of RBW
and VBW when it is in Auto mode).
⚫ VBW varies with RBW when it is set to Auto.
5.5.3 [EMI On Off]
Pop out the menu for EMI measurement bandwidth.
5.6 【Marker】 bottom softkey
Key access: [Marker] softkey at the bottom of the screen
Markers are diamond- shaped characters that identify points of
traces. The submenu on the right of the screen includes
【Marker>】, 【MarkerFctn>】, 【Marker→>】, 【Peak>】.
5.6.1【Marker >】 right softkey
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