R&S 1322.8003K06, User Manual

Page: 103 / 555

Common Measurement Settings
R&S
®
FSPN
103 User Manual 1179.4363.02 ─ 01
Functionality to configure amplitude characteristics described elsewhere:
●
" Input Coupling " on page 100
●
Level Setting
The remote commands required to configure the amplitude are described in Chap-
ter 11.6.4, "Remote Commands to Configure Level Characteristics" , on page 350.
Attenuating the signal ..................................................................................................103
Shifting the level ..........................................................................................................103
Searching for the signal level ...................................................................................... 103
Attenuating the signal
You can either determine the attenuation automatically or manually. Signal attenuation
is possible in 5 dB steps. The range is specified in the data sheet.
When you select "Auto" mode, the R&S FSPN determines the attenuation based on
the level of the signal that is applied. Automatic determination of the attenuation makes
sure that the ideal attenuation is always selected.
In "Manual" mode, the "Value" field becomes available and you can define an attenua-
tion as required.
NOTICE! Risk of hardware damage due to high power levels.
When you decrease the attenuation manually, make sure that the signal level does not
exceed the maximum level allowed at the RF input. Otherwise, an overload of the input
mixer can cause hardware damage.
Remote command:
Mode:
INPut<1|2>:ATTenuation:AUTO
on page 354
Attenuation:
INPut<1|2>:ATTenuation
on page 354
Shifting the level
You can define an arithmetic level offset that is added to the measured level.
Defining a level offset is useful, for example, if you attenuate or amplify the signal
before it is fed into the R&S
FSPN. The R&S FSPN is then able to display the correct
power results.
To determine the required offset, consider the external attenuation or gain applied to
the input signal. For attenuation, define a positive offset so the R&S
FSPN increases
the displayed power values. If an external gain is applied, define a negative offset so
the R&S
FSPN decreases the displayed power values.
Remote command:
[SENSe:]POWer:RLEVel:OFFSet
on page 355
Searching for the signal level
The R&S FSPN automatically measures the level of the signal you have applied and
keeps track of the measured signal levels.
The currently measured signal level is displayed in the channel bar.
Level Characteristics