NF WF1943B - Center, Span

4.2 Sweep
4-32 WF1943B
 CENTER, SPAN
• Center is the sweep center value, while span is the range setting. The relationship among center, span,
start and stop is as follows.
Values cannot be entered for CENTER and SPAN, however, if the sweep type is set from a user unit that
has the log function.
• When start is changed:
Stop does not change.
CENTER = (START+STOP) ÷ 2
SPAN = |START−STOP|
• When stop is changed:
Start does not change.
CENTER = (START + STOP) ÷ 2
SPAN = |START − STOP|
• When center is changed:
Span does not change.
START = CENTER −/+ (SPAN ÷ 2)
STOP = CENTER +/− (SPAN ÷ 2)
• When span is changed:
Center does not change.
START = CENTER − /+ (SPAN ÷ 2)
STOP = CENTER +/− (SPAN ÷ 2)