Rigol DSA875 Uživatelský manuál stáhnout pdf (Strana 112)

RIGOL Chapter 2 Front Panel Operation

User’s Guide for DSA800 Series

2-60

Table 2-35 Average Number for Chan Power Measurement

Parameter Description

Default 10

Range 1 to 1000

Unit N/A

Knob Step 1

Direction Key Step 1

2. Avg Mode

Set the average operation mode to “Exp” or “Repeat” and the default is “Exp”.

 When “Exp” is selected, the result is the exponential average of the

current N (N is specified in “Avg Num”) measurement results.

 When “Repeat” is selected, the result is the arithmetic average of the

current N (N is specified in “Avg Num”) measurement results.

3. Integ BW

Set the frequency width of the channel to be tested and the power of the

channel is the power integral within this bandwidth. You can use the numeric

keys, knob or direction keys to modify this parameter.

Table 2-36 Integration Bandwidth for Chan Power Measurement

Parameter Description

Default 2 MHz

Range 100 Hz to 7.5 GHz

Unit

GHz, MHz, kHz, Hz

Knob Step Integration BW/100, the minimum is 1 Hz

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

4. CH Pwr Span

Set the frequency range of the channel. This span which is the same with the

span of the analyzer is the frequency range of the sweep. Modifying this

parameter will change the span of the analyzer.

 The channel power span is related to the integration bandwidth and the

range available is from integration bandwidth to integration

bandwidth×20.

 You can use the numeric keys, knob or direction keys to modify this

parameter.

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Rigol DSA875 Uživatelský manuál Strana 112