Keysight 33210A - Page 208

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Chapter 4 Remote Interface Reference
Frequency Sweep Commands
4
FREQuency:CENTer {<frequency>|MINimum|MAXimum}
FREQuency:CENTer? [MINimum|MAXimum]
Set the center frequency (used in conjunction with the frequency span).
Select from 1 mHz to 10 MHz (limited to 100 kHz for a ramp waveform).
The default is 550 Hz. MIN = 1 mHz. MAX = based on the frequency
span and maximum frequency for the selected function
as shown below.
The
:CENT? query returns the center frequency in hertz.
Center Frequency (max) = Max. Frequency –
• The following equation shows the relationship between the center
frequency and the start/stop frequency.
Center Frequency =
FREQuency:SPAN {<frequency>|MINimum|MAXimum}
FREQuency:SPAN? [MINimum|MAXimum]
Set the frequency span (used in conjunction with the center frequency).
Select from 0 Hz to 10 MHz (limited to 100 kHz for a ramp waveform).
The default is 900 Hz. MIN = 0 Hz. MAX = based on the center frequency
and maximum frequency for the selected function. The :SPAN? query
returns the span in hertz (can be a positive or negative value).
Frequency Span (max) = 2 X (Max. Frequency – Center Frequency)
• To sweep up in frequency, set a positive frequency span.
To sweep down in frequency, set a negative frequency span.
• The following equation shows the relationship between the span and
the start/stop frequency.
Frequency Span = Stop Frequency – Start Frequency
Span
2
--
--------
-----
Stop Frequency Start Frequency
–
2
-
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33210A users guide.book Page 206 Wednesday, July 16, 2008 11:16 AM