Keysight 81160A - Page 490

Appendix
490
Command
:FREQ[1|2]:SPAN[?]
Long
[:SOURCE]:FREQuency[1|2] [:CW|:FIXed]:SPAN[?]
Parameters
{<NR3>|MINimum|MAXimum}
Parameter Suffix
HZ
Description
Set the frequency span (used in conjunction with the center frequency)
MIN = 0Hz, MAX = based on the center frequency and maximum frequency
for the selected function. The :FREQ[1|2]: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.
Example
:FREQ1:SPAN 2.5MHZ