Chapter 2 Command System RIGOL
DG800 Programming Guide 2-73
frequency to low frequency. When the start frequency is equal to the stop frequency, the signal
generator outputs at the fixed frequency.
When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related parameters of CH1 by default.
The Sine, Square, Ramp, and Arbitrary waveform can generate the sweep output. The range of the
stop frequency <frequency> differs for different sweep waveforms.
The start frequency, stop frequency, center frequency and frequency span fulfills the following
equations.
|)(|
stopstartcenter
FFF +=
;
Wherein,
——center frequency;
——frequency span;
——start frequency;
——stop frequency.
The generator will restart to sweep and output from the specified "Start Frequency" after the "stop
frequency" is modified. In large-scale sweep, the amplitude characteristic of the output signal might
change.
Return Format
The query returns the stop frequency in scientific notation, with 7 effective digits. For example,
9.000000E+02 (the stop frequency is 900 Hz).
Example
:SOUR1:FREQ:STOP 900 /*Sets the stop frequency of the sweep function of CH1 to 900 Hz.*/
:SOUR1:FREQ:STOP? /*Queries the stop frequency of the sweep function of CH1 and the query
returns 9.000000E+02.*/
:SOURce:FUNCtion
Command List:
[:SOURce[<n>]]:FUNCtion:DUALTone:CENTERFreq
[:SOURce[<n>]]:FUNCtion:DUALTone:FREQ1
[:SOURce[<n>]]:FUNCtion:DUALTone:FREQ2
[:SOURce[<n>]]:FUNCtion:DUALTone:OFFSETFreq
[:SOURce[<n>]]:FUNCtion:PRBS:BRATe
[:SOURce[<n>]]:FUNCtion:PRBS:DATA
[:SOURce[<n>]]:FUNCtion:PULSe:DCYCle
[:SOURce[<n>]]:FUNCtion:PULSe:PERiod
[:SOURce[<n>]]:FUNCtion:PULSe:TRANsition[:BOTH]
[:SOURce[<n>]]:FUNCtion:PULSe:TRANsition:LEADing
[:SOURce[<n>]]:FUNCtion:PULSe:TRANsition:TRAiling
[:SOURce[<n>]]:FUNCtion:PULSe:WIDTh
[:SOURce[<n>]]:FUNCtion:RAMP:SYMMetry
[:SOURce[<n>]]:FUNCtion:RS232:BAUDrate
[:SOURce[<n>]]:FUNCtion:RS232:CHECKBit
[:SOURce[<n>]]:FUNCtion:RS232:DATA
[:SOURce[<n>]]:FUNCtion:RS232:DATABit
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