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SSA3000X Plus User Manual 19
value.
Table 2-2 Start Frequency
Parameter
Explanation
Default
0 Hz
Range
Zero Span, 0 Hz ~ Full Span
Nonzero Span, 0 Hz ~ (Full Span-100Hz)
Unit
GHz, MHz, kHz, Hz
Knob Step
Span > 0, step = Span/200, min 1 Hz
Span = 0, step = RBW/100, min 1 Hz
Direction Key Step
Freq Step
Related to
Center Freq, Span
2.1.1.3
Stop Frequency
Set the stop frequency of the current sweep. The start and stop frequencies are displayed at the lower
right sides of the grid respectively.
The span and center frequency vary with the stop frequency. The change of the span will affect
other system parameters. For more details, please refer to “
Span
”.
In Zero Span, the start frequency, stop frequency and center frequency are always the same
value.
Table 2-3 Stop Frequency
Parameter
Explanation
Default
Full Span
Range
Zero Span: 0 Hz ~ Full Span
Nonzero Span: 100 Hz ~ Full Span
Unit
GHz, MHz, kHz, Hz
Knob Step
Span > 0, step = Span/200, min 1 Hz
Span = 0, step = RBW/100, min 1 Hz
Direction Key Step
Freq Step
Related to
Center Freq, Span
2.1.1.4
Freq Offset
Set the frequency offset value to illustrate the frequency conversion between the measured device and
the input of the spectrum analyzer.
This parameter does not affect any hardware settings of the spectrum analyzer, but only changes
the display values of center frequency, start frequency and stop frequency.
To eliminate the frequency offset value, the frequency offset value can be set to 0 Hz.
