Rohde & Schwarz FSWP Series - Page 48

Configuration
R&S
®
FSWP
48User Manual 1177.5856.02 ─ 07
The electronic attenuator and its settings are not supported by the R&S FSWP.
Functions to configure amplitude characteristics described elsewhere:
●
" Input Coupling " on page 42
●
" Impedance " on page 42
●
Scaling settings are described in Chapter 5.4.2, "Scaling the Level Axis",
on page 51.
The remote commands required to configure amplitude characteristics are described in
Chapter 8.6.3, "Configuring Level Characteristics", on page 111, Chapter 8.6.4, "Con-
figuring the Attenuator", on page 113 and Chapter 8.6.5, "Configuring the Preampli-
fier", on page 114.
Reference Level ...........................................................................................................48
└ Shifting the Display ( Offset ).......................................................................... 49
└ Unit .................................................................................................................49
└ Setting the Reference Level Automatically ( Auto Level )...............................49
Attenuation Mode / Value ............................................................................................. 50
Optimization ................................................................................................................. 50
Preamplifier ..................................................................................................................50
Noise Cancellation ....................................................................................................... 50
Reference Level
Defines the expected maximum reference level. Signal levels above this value may not
be measured correctly. This is indicated by an "IF Overload" status display.
The reference level can also be used to scale power diagrams; the reference level is
then used as the maximum on the y-axis.
Since the hardware of the R&S FSWP is adapted according to this value, it is recom-
mended that you set the reference level close above the expected maximum signal
level. Thus you ensure an optimum measurement (no compression, good signal-to-
noise ratio).
Note that for input from the External Mixer (R&S FSWP-B21) the maximum reference
level also depends on the conversion loss; see the R&S FSWP base unit user manual
for details.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel on page 112
Configuring the Amplitude