User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
378User Manual 1178.3370.02 ─ 03
f
max
and span
min
are specified in the data sheet.
For more information see Chapter 7.4.1.1, "Defining the Scope of the Measurement -
Frequency Range", on page 375.
Remote command:
[SENSe:]FREQuency:SPAN on page 644
Start / Stop
Defines the start and stop frequencies.
The following range of values is allowed:
f
min
≤ f
start
≤ f
max
– span
min
f
min
+ span
min
≤ f
stop
≤ f
max
f
min
, f
max
and span
min
are specified in the data sheet.
Remote command:
[SENSe:]FREQuency:STARt on page 645
[SENSe:]FREQuency:STOP on page 645
Full Span
Sets the span to the full frequency range of the R&S FPL1000 specified in the data
sheet. This setting is useful for overview measurements.
Remote command:
[SENSe:]FREQuency:SPAN:FULL on page 645
Zero Span
Sets the span to 0 Hz (zero span). The x-axis becomes the time axis with the grid lines
corresponding to 1/10 of the current sweep time ( "SWT" ).
For details see Chapter 7.2.1, "Basic Measurements", on page 233.
Remote command:
FREQ:SPAN 0Hz, see [SENSe:]FREQuency:SPAN on page 644
Last Span
Sets the span to the previous value. With this function you can switch between an
overview measurement and a detailed measurement quickly.
Remote command:
[SENSe:]FREQuency:SPAN on page 644
Center Frequency Stepsize
Defines the step size by which the center frequency is increased or decreased when
the arrow keys are pressed. When you use the rotary knob the center frequency
changes in steps of only 1/10 of the span.
The step size can be coupled to the span (span > 0) or the resolution bandwidth (span
= 0), or it can be manually set to a fixed value.
For more details see Chapter 7.4.1.2, "Stepping Through the Frequency Range - Cen-
ter Frequency Stepsize", on page 375.
Frequency and Span Configuration