Instrument Function
R&S
®
SMB100A
153Operating Manual 1407.0806.32 ─ 13
"Sawtooth"
One sweep runs from start to stop frequency. Each subsequent sweep
starts at the start frequency, i.e. the shape of the sweep sequence
resembles a sawtooth.
"Triangle"
One sweep runs from start to stop frequency and back, i.e. the shape
of the sweep resembles a triangle. Each subsequent sweep starts at
the start frequency.
Remote command:
[:SOURce<hw>]:SWEep[:FREQuency]:SHAPe on page 382
Step Lin/Log - Frequency Sweep
Sets the step width for the individual sweep steps. This entry is effective for all sweep
modes.
"Step Lin" or "Step Log" is displayed depending on whether "Spacing Lin" or "Log" is
selected.
"Step Lin"
With the linear sweep, the step width is a fixed frequency value which
is added to the current frequency. The linear step width is entered
in Hz.
Remote command:
[:SOURce<hw>]:SWEep[:FREQuency]:STEP[:LINear] on page 383
"Step Log"
With the logarithmic sweep, the step width is a constant fraction of the
current frequency. The logarithmic step width is entered in %.
Successive frequencies are calculated as follows:
●
start_f < stop_f
f2 = f1 * (1 + step_log / 100)
If f2 > stop_f: f2 is set to stop_f.
●
start_f > stop_f
f2 = f1 / (1 + step_log / 100)
If f2 < stop_f: f2 is set to stop_f.
When the shape "Triangle" is set, the frequency values on the slope
from stop_f back to start_f are the same as on the slope from start_f
to stop_f.
Remote command:
[:SOURce<hw>]:SWEep[:FREQuency]:STEP:LOGarithmic on page 384
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