Rigol DSA875 Manuel d'utilisateur télécharger pdf (Page 62)

RIGOL Chapter 2 Front Panel Operation

User’s Guide for DSA800 Series

2-10

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

Table 2-6 Span

Parameter Explanation

Default 7.5 GHz

Range* 0 Hz to 7.5 GHz

Unit GHz, MHz, kHz, Hz

Knob Step Span/200, Min = 1 Hz

Direction Key Step

in 1, 2, 5 sequence

Note: *0 Hz is available only in zero span.

Full Span

Set the span of the analyzer to the maximum.

Zero Span

Set the span of the analyzer to 0 Hz. Both the start and stop frequencies will equal

the center frequency and the horizontal axis will denote time. The analyzer

measures the time domain characteristics of the amplitude of the corresponding

frequency point on the input signal.

Key Points:

As opposed to Non-zero span, the screen shows the time domain characteristics of

the fixed frequency component of the signal in zero span mode.

The following functions are invalid in Zero span mode:

 FREQ: Peak->CF and Signal Track;

 SPAN: Zoom In and Zoom Out;

 Marker->: Mkr->CF, Mkr->Step, Mkr->Start, Mkr->Stop, MkrΔ->CF and

MkrΔ->Span;

 Marker  Readout: Frequency, Period and 1/ΔTime (valid in Delta marker

type);

 TG: Power Sweep (only for DSA815-TG/DSA832-TG/DSA875-TG).

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Rigol DSA875 Manuel d'utilisateur Page 62