User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
336User Manual 1178.3370.02 ─ 09
The trigger and gate settings are applied to the measurement when the dialog box is
closed.
Note: The zero span settings refer only to the preview diagram. The main diagram
remains unchanged.
If preview mode is switched off, any changes to the settings in this dialog box are
applied to the measurement diagram directly. In this case, the zero span settings for
the preview diagram are not displayed.
For information on the zero span settings see:
●
"Center Frequency" on page 303
●
"RBW" on page 266
●
"Sweep Time" on page 324
Frequency ← Preview
Defines the center frequency.
Remote command:
[SENSe:]FREQuency:CENTer on page 760
RBW ← Preview
Defines the bandwidth value. The available resolution bandwidths are specified in the
data sheet. Numeric input is always rounded to the nearest possible bandwidth.
Remote command:
[SENSe:]BANDwidth[:RESolution] on page 769
Sweep Time ← Preview
Defines the sweep time. Allowed values depend on the ratio of span to RBW and RBW
to VBW. For details refer to the data sheet. Numeric input is always rounded to the
nearest possible sweep time.
Remote command:
[SENSe:]SWEep:TIME on page 775
Trigger Source
Selects the trigger source. If a trigger source other than "Free Run" is set, "TRG" is dis-
played in the channel bar and the trigger source is indicated.
For gated measurements, this setting also selects the gating source.
For more information see "Trigger Source" on page 332.
Remote command:
TRIGger[:SEQuence]:SOURce on page 785
[SENSe:]SWEep:EGATe:SOURce on page 788
Free Run ← Trigger Source
No trigger source is considered. Data acquisition is started manually or automatically
and continues until stopped explicitly.
In the Spectrum application, this is the default setting.
Remote command:
TRIG:SOUR IMM, see TRIGger[:SEQuence]:SOURce on page 785
Trigger and Gate Configuration