R&S SMA100B - Dwell Time; Spacing; Sweep Time

List and sweep mode
R&S
®
SMA100B
192User Manual 1178.3834.02 ─ 09
[:SOURce<hw>]:SWEep:POWer:SHAPe on page 705
RF combined sweep:
[:SOURce<hw>]:SWEep:COMBined:SHAPe on page 710
LF frequency sweep:
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:SHAPe on page 663
Spacing
In "RF and LF Frequency Sweep" mode, "Spacing " selects the mode for calculating
the frequency interval, which increases or decreases the current frequency at each
step.
In "RF Frequency Sweep" mode and Sweep Type > Ramp, the parameter automati-
cally distributes the step intervals linearly.
To determine the step size, select the parameter Step Linear/Step Logarithmic.
In "RF Combined Sweep" mode, the parameter indicates that the step intervals are lin-
early (straight proportional) distributed, i.e. the intervals have the same size. The fre-
quency / level range and the Dwell Time time determine the calculated step size.
"Linear"
The spacing depends on the selected sweep type.
●
Sweep Type > Step
Takes the frequency value entered as absolute value in Hz.
●
Option: R&S SMAB-B28
Sweep Type > Ramp
Generates a synthesized continuous analog frequency sweep for
the duration set with the parameter Sweep Time.
"Logarithmic"
(Sweep Type > Step only)
Takes the value entered as a logarithmic value, i.e. as a constant
fraction of the current frequency in %.
Remote command:
RF frequency sweep:
[:SOURce<hw>]:SWEep[:FREQuency]:SPACing on page 704
RF combined sweep: n.a.
LF frequency sweep:
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:SPACing on page 664
Sweep Time
Option: R&S SMAB-B28
For "RF Frequency Sweep" with Sweep Type > Ramp, the parameter sets the duration
of a ramp sweep step.
Remote command:
[:SOURce<hw>]:SWEep[:FREQuency]:TIME on page 710
Dwell Time
Defines the duration of the individual sweep steps.
Note: In case of considerable overrun conditions, the R&S SMA100B turns off the
sweep mode.
See also Chapter 7.4, "Significant parameters and functions", on page 185.
Sweep mode settings