List and Sweep Mode
R&S
®
SMA100B
166User Manual 1178.3834.02 ─ 05
If f
2
> f
STOP
, then f
2
= f
STOP
●
For f
STARt
> f
STOP
f
2
= f
1
/(1 + step_log/100)
If f
2
< f
STOP
, then f
2
= f
STOP
With "Shape = Triangle", the frequency values on the slope from f
STOP
to f
STARt
are the
same as on the slope from f
STARt
to f
STOP
.
If you specify the number of steps within the sweep range, the step size is adjusted
according to the following correlation:
●
For linear sweeps and f
STARt
< f
STOP
POINts
frequency
= ((f
STARt
- f
STOP
)/step_lin) +1 = (f
SPAN
/step_lin) + 1
●
For logarithmic sweeps and f
STARt
< f
STOP
POINts
frequency
= ((log f
STOP
- log f
STARt
)/log step_log) +1
If step_log changes, the value of POINts is adjusted. The f
STARt
and f
STOP
values are
retained.
6.2.2 Sweep Signal Shapes
The R&S SMA100B supports the following sweep shapes:
●
Sawtooth
The sweep sequence resembles a sawtooth. One sweep runs from start to stop
frequency, or level value respectively. Each subsequent sweep starts again at the
start value.
Figure 6-8: Sweep signal sawtooth shape
1 = Start value
2 = Stop value
3 = Step size
●
Triangle
The sweep sequence resembles a triangle. One sweep runs from start to stop
value frequency and back. Each subsequent sweep starts at the start value.
About Sweep Mode
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