5Key Reference
136 N9342C/43C/44C User’s Guide
SPAN
This hardkey accesses the softkey submenu of span
functions. Pressing [SPAN] allows you to change the
frequency range. The frequency- span readout
describes the total displayed frequency range. To
determine frequency span per horizontal graticule
division (when in linear frequency scale type),
divide the frequency span by 10.
Span
Key access: [SPAN] > {Span}
Enter a frequency span range value.
Full
Key access: [SPAN] > {Full}
Changes the span to the full frequency range of the
analyzer.
Zero
Key access: [SPAN] > {Zero}
Changes the frequency span to zero. In this mode,
the current center frequency is displayed in the
time domain (the x axis is displayed in units of
time), like a conventional oscilloscope.
Last Span
Key access: [SPAN] > {Last Span}
Sets the span to the previous span setting.
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