Rigol DSA875 Manual do Utilizador descarregar pdf (Página 80)

RIGOL Chapter 2 Front Panel Operation

User’s Guide for DSA800 Series

2-28

Sweep/Trig

Set parameters about the Sweep and Trigger functions, including sweep time, auto

sweep time, sweep mode, number of sweep, trigger type, etc.

Sweep Time

Set the time needed for the spectrum analyzer to finish a sweep within the span

range. The sweep time can be set in “Auto” or “Manual” mode and the default is

“Auto”.

Key Points:

 In non-zero span, the analyzer selects the shortest sweep time on the basis of

the current RBW and VBW settings if Auto is selected.

 Decreasing the sweep time would speed the measurement. However, an error

may be caused if the specified sweep time is less than the minimum sweep

time in Auto coupling; at this point, “UNCAL” is shown in the status bar on the

screen.

 You can modify this parameter using the numeric keys, knob or direction keys.

For more details, please refer to “Parameter Setting”.

Table 2-16 Sweep Time

Parameter

Explanation

Default

37.5 ms

Range* 20 us to 7500 s

Unit ks, s, ms, us, ns, ps

Knob Step Sweep time/100, Min = 1 us

Direction Key Step in 1, 1.5, 2, 3, 5, 7.5 sequence

Note: *The minimum in non-zero span mode is 1 ms.

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 234 235

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