Instructions

T3VNA User Manual 19
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 Oset
Set the frequency offset value to illustrate the frequency conversion between the measured device and
the input of the vector network analyzer.
 This parameter does not affect any hardware settings of the vector network 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.