Rohde & Schwarz VSE-K149, User Manual

Page: 30 / 143

Configuration
R&S
®
VSE-K149
30 User Manual 1179.3315.02 ─ 01
Note that amplitude settings are not window-specific, as opposed to the scaling and
unit settings.
Reference Level ........................................................................................................... 30
└ Shifting the Display ( Offset ) .......................................................................... 31
RF Attenuation .............................................................................................................. 31
└ Attenuation Mode / Value ...............................................................................31
Using Electronic Attenuation ........................................................................................ 31
Input Settings ................................................................................................................ 32
└ Preamplifier ....................................................................................................32
└ Impedance ..................................................................................................... 32
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 for the calculation of the maximum on the y-axis.
Since the hardware of the connected instrument is adapted according to this value, it is
recommended that you set the reference level close above the expected maximum sig-
nal level. Thus you ensure an optimum measurement (no compression, good signal-to-
noise ratio).
For an active external frontend, the reference level refers to the RF input at the exter-
nal frontend, not the levels at the RF input of the connected instrument.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel<ant>
on page 114
Input and Frontend Settings