Configuring the RF Signal
R&S
®
SMBV100B
376
User Manual 1178.4460.02 ─ 03
The following are examples of test requirements and the corresponding configuration:
●
Automatic configuration
Select standard operation mode ("Auto"), in which the generator adjusts the attenu-
ation of the RF output signal automatically
●
Compensation for cable loss
You can compensate the loss of a cable connection by a higher output power
●
DUT tests under low signal to noise conditions
Low output power is suitable to test the behavior of a DUT under low signal to
noise conditions.
●
Uninterrupted level settings with constant VSWR
A fix attenuation value is required for obtaining uninterrupted level settings with
constant VSWR.
The configuration "RF Off Mode > Unchanged" ensures that constant VSWR is
maintained if you turn the signal off and on again.
●
Noise sensitive applications
The parameter "RF OFF Mode > Full Attenuation" sets maximum attenuation and
thus suppresses noise when you turn off the RF signal.
6.12.1.1
Attenuator Settings
Access:
► Select "RF" > "RF Level" > "Level > Attenuator".
In the "Attenuator" dialog, you can select the operating mode of the electronic
attenuator, the instrument is equipped with.
The remote commands required to define these settings are described in
on page 646 and
Settings
Mode
Determines the operating mode of the attenuator.
Improving Level Performance
