Parameter
Name Type
Range
1
Default
<frequency>
Consecutive Real
Number
Refer to the Note below 550 Hz
Note
1
: different sweep waveforms correspond to different center frequency
ranges.
Sine: 1 μHz to 160 MHz
Square: 1 μHz to 50 MHz
Ramp: 1 μHz to 4 MHz
Arb: 1 μHz to 40 MHz (except DC in the built-in waveforms)
Explanation
In the sweep mode, the start frequency, end frequency, center frequency and
frequency span are interrelated and their relations fulfill the following equations.
center frequency = (︱start frequency + end frequency︱) /2
frequency span = end frequency - start frequency
Return Format
The query returns the center frequency in scientific notation.
Example
The command below sets the center frequency to 600 Hz.
:FREQuency:CENTer 600
The query below returns 6.000000E+02.
:FREQuency:CENTer?