Rohde & Schwarz SMM100A, User Manual

Page: 339 / 1088

Configuring the RF signal
R&S
®
SMM100A
339 User Manual 1179.1341.02 ─ 05
"Extern Start/Stop"
Generates a continuously repeating sweep signal that is started,
stopped, and restarted by subsequent external trigger events.
The sweep steps are performed automatically, controlled by the dwell
time.
Remote command:
RF frequency sweep:
[:SOURce<hw>]:SWEep[:FREQuency]:MODE
on page 954
:TRIGger<hw>:FSWeep:SOURce
on page 995
RF level sweep:
[:SOURce<hw>]:SWEep:POWer:MODE
on page 952
:TRIGger<hw>:PSWeep:SOURce
on page 995
LF frequency sweep:
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:MODE
on page 911
:TRIGger<hw>:LFFSweep:SOURce
on page 995
Retrace
For "Shape = Sawtooth" and "Mode = Single/External Single", enables changing the
signal to the start value while it is waiting for the next trigger event. It returns to the
start level or start frequency until the next trigger is applied.
Remote command:
RF frequency sweep:
[:SOURce<hw>]:SWEep[:FREQuency]:RETRace
on page 956
RF level sweep:
[:SOURce<hw>]:SWEep:POWer:RETRace
on page 956
LF frequency sweep:
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:RETRace
on page 912
Shape
Selects the waveform shape of the sweep signal.
"Sawtooth" The sweep runs from start to stop frequency. The subsequent sweep
starts at the start value, i.e. the shape of the sweep sequence resem-
bles a sawtooth.
"Triangle" The sweep runs from start to stop value and back, i.e. the shape of
the sweep resembles a triangle. Each subsequent sweep starts at the
start frequency.
Remote command:
RF frequency sweep:
[:SOURce<hw>]:SWEep[:FREQuency]:SHAPe
on page 955
RF level sweep:
[:SOURce<hw>]:SWEep:POWer:SHAPe
on page 955
LF frequency sweep:
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:SHAPe
on page 913
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.
Varying the RF signal in list or sweep mode