FSE INPut Subsystem
1065.6016.12 6.127 E-16
INPut Subsystem
The INPut subsystem checks the input features of the instrument. In the split-screen representation, a
distinction is made between INPut1 (screen A) and INPut2 (screen B).
COMMAND PARAMETERS UNIT COMMENT
INPut<1|2>
:ATTenuation
:AUTO
:MODE
:STEPsize
:UPORt<1|2>
[:VALue]?
:STATe
:IMPedance
:CORRection
:MIXer
<numeric_value>
<Boolean>
NORMal | LNOise|LDIStortion
1 | 10
--
<Boolean>
50 | 75
RAM | RAZ
<numeric_value>
DB
--
--
dB
--
--
OHM
DBM
Option 1-dB attenuator
query only
:INPut<1|2>:ATTenuation 0 to 70 dB
This command programs the input attenuator.
Example: ":INP:ATT 40dB"
Features: *RST value: - (AUTO is set to ON)
SCPI: conforming
Modes: A, VA
The attenuation of the input calibration line can be programmed in steps of 10 dB. If the attenuation
is programmed directly, the coupling to the reference level is switched off.
:INPut<1|2>:ATTenuation:AUTO ON | OFF
This command automatically couples the input attenuation to the reference level (analyzer).
Example: ":INP:ATT:AUTO ON"
Features: *RST value: ON
SCPI: conforming
Modes: A, VA
:INPut<1|2>:ATTenuation:AUTO:MODE NORMal | LNOise | LDIStortion
This command optimizes the coupling of the input attenuation to the reference level to high sensitivity
or to high intermodulation immunity.
Example: ":INP:ATT:AUTO:MODE LDIS"
Features: *RST value: ON
SCPI: device-specific
Modes: A, VA
For LNOise, the input attenuator value is set 10 dB lower than for INPut:ATTenuation:
AUTO:MODE NORMal, for LDIStortion it is set 10 dB higher.
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