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Chapter 2 Using Spectrum Analyzer
Setting frequency
Frequency and span
Table 2
Table 2
Parameter
Center Frequency
Start Frequency
Stop Frequency
Frequency Step
Frequency Offset
Span Frequency
Full Span
Zero Span
Page 10
describes each key function.
Key Frequency Functions.
Description
Sets the horizontal center of the display to a specific fre-
quency using the on-screen keyboard. The left and right
sides of the graticule correspond to the start and stop fre-
quencies using the on-screen keyboard.
Access: Menu> Frequency> Center Frequency
Sets the frequency starting at the left side of the graticule.
Access: Menu> Frequency> Start Frequency
Sets the frequency starting at the right side of the graticule.
The right sides of the graticule correspond to the stop fre-
quency using the on-screen keyboard.
Access: Menu > Frequency > Stop Frequency
Sets the step size for the frequency setting. The step size
function is useful for finding harmonics and sidebands
beyond the current frequency span of the instrument using
the on-screen keyboard.
Access: Menu > Frequency > Stop Frequency
Allows you to set a frequency offset value that is added to
the frequency readout of the marker, to account for fre-
quency conversions external to the instrument using the
on-screen keyboard. Offset entries are added to all fre-
quency readouts including marker, start frequency, and
stop frequency. Offsets are not added to the span or fre-
quency count readouts. Setting and offset does not affect
the trace display.
Access: Menu > Frequency > Frequency Offset
Sets frequency range symmetrically about the center fre-
quency using the on-screen keyboard. The span frequency
readout describes the total displayed frequency range. To
determine span frequency per horizontal graticule division,
divide the frequency span by 10.
Access: Menu > Frequency > Span Frequency
Sets the span to full span, showing the full frequency range
of the instrument.
Access: Menu > Frequency > Full Span
Sets the frequency span to zero. In this mode, the current
center frequency is displayed in the time domain. It is only
available in the spectrum mode.
If you have selected Zero Span, select Trigger> Free,
External, GNSS, or Video.
Access: Menu > Frequency > Last Span
SPA06MA-O User's Guide
22145360, R005
April 2021
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