Rigol DG952, Programming Manual

Page: 75 / 205

Chapter 2 Command System RIGOL
DG900 Programming Guide 2-63
Return Format
The query returns FPT, TOP, CENTER, BOTTOM; or returns the user-defined idle level position in integer.
Example
[:SOURce[<n>]]:BURSt: IDLE FPT /*Sets the idle level position of the burst mode of CH1 to 1st Point.*/
[:SOURce[<n>]]:BURSt:
IDLE
? /*Queries the idle level position of the burst mode of CH1 and the
query returns FPT.*/
:SOURce:FREQuency
Command List:

[:SOURce[<n>]]:FREQuency:CENTer

[:SOURce[<n>]]:FREQuency:COUPle:MODE

[:SOURce[<n>]]:FREQuency:COUPle:OFFSet

[:SOURce[<n>]]:FREQuency:COUPle:RATio

[:SOURce[<n>]]:FREQuency:COUPle[:STATe]

[:SOURce[<n>]]:FREQuency[:FIXed]

[:SOURce[<n>]]:FREQuency:SPAN

[:SOURce[<n>]]:FREQuency:STARt

[:SOURce[<n>]]:FREQuency:STOP
[:SOURce[<n>]]:FREQuency:CENTer
Syntax
[:SOURce[<n>]]:FREQuency:CENTer {<frequency>|MINimum|MAXimum}
[:SOURce[<n>]]:FREQuency:CENTer? [MINimum|MAXimum]
Description
Sets the center frequency of the sweep function of the specified channel.
Queries the center frequency of the sweep function of the specified channel.
Parameter
Name Type Range Default
[<n>] Discrete 1|2 1
<frequency> Real Refer to "Remarks". 550 Hz
Remarks

You can set the sweep boundaries via the center frequency and frequency span
( [:SOURce[<n>]]:FREQuency:SPAN ). Different sweep waveforms correspond to different center
frequency and frequency span ranges. Besides, the center frequency and frequency span are mutually
affected. Define the minimum frequency of the currently selected waveform
min
F
, the maximum
frequency as
max
F
and
2 / ) (
max min
F F F
m
+ = . The range of the center frequency (defined as
center
F
)
is from
min
F
to
max
F
. The range of the frequency span (defined as
span
F
) is affected by the center
frequency. When the center frequency is smaller than
m
F
, the range of the frequency span is
) ( 2
min
F F
center
− × ± ; when the center frequency is greater than
m
F
, the range of the frequency span is
) ( 2
max center
F F
− × ±
.

When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related parameters of CH1 by default.

The start frequency, stop frequency, center frequency and frequency span fulfills the following