GW Instek GSP-827 User Manual - Manual (Page 20)

2.7GHz Spectrum Analyzer Operation Manual
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6.2.12 Edit the Limit Line,
Function key Description
Limit Line
Select the Limit line relative functions.
F3
<Edit>
Select limit line editing.
F1 <Limit
Upper>
Toggle the editing between high and low limit line.
Arrow Keys
Use ∧∨ > < arrow keys to mark and modify the existed
points.
F2
<Insert>
Insert a point at where the point is marked.
F3
<Delete>
Delete a point at where the point is marked.
F4
<Undo>
Undo the previous edit step. Only one step is reserved.
F6
<Return>
Exit the limit line editing.
6.2.13 Change RBW, VBW and Sweep time
Function key Description
BW Activate the power measurement relative functions.
F1 <RBW
Auto>
Switch RBW between Auto and Manu mode. In auto mode,
RBW is coupled with Span; in manual mode, use ∧ and ∨
arrow keys to select RBW as wanted.
F2 <VBW
Auto>
Switch VBW between Auto and Manu mode. Use ∧ and ∨
arrow keys to select VBW as wanted in manual mode.
F3 <SwpTm
Auto>
Switch Sweep Time between Auto and Manu mode, key in
the sweep time as wanted in manual mode.
F4
<All Auto>
Set all RBW, VBW and sweep time to auto mode.
6.2.14 Trigger by input signal level
Function key Description
Trigger Select the trigger mode functions.
F2 <Video
Level>
Select level-on-display as trigger source. Key in the level to
trigger the sweep.