5
.Menu Interpretation
36
5.4
【
Auto
】
bottom softkey
Key access: [Auto] softkey at the bottom of the screen
Searches for signals automatically throughout the full frequency
range, adjusts the frequency and amplitude to their optimum and
realizes one-key signal search and auto setting of parameters.
Key points: some parameters such as reference level, scale, and
input attenuation may be changed during the auto tune.
5.5
【
BW
】
bottom softkey
Key access: [BW] softkey at the bottom of the screen
Sets the RBW (Resolution Bandwidth) and VBW (Video Bandwidth)
parameters of the analyzer. The setting menu includes [RBW Auto
Man], [RBW Mode Def Con], [VBW Auto Man], [Average On Off],
[EMI Filter
►
].
5.5.1 [RBW Auto Man]
Adjust the resolution bandwidth ranging from 10Hz to 3MHz. Use
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 [RBW Mode Def Cont]
Adjust resolution step mode, resolution mode can be set to 1-3-5,
Default or Continuous mode.