R&S FSV-K7 Operating Manual page 177

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R&S FSV-K7/K7S
INPut:DIQ:RANGe[:UPPer]
INPut:DIQ:RANGe[:UPPer]:UNIT
INPut:DIQ:SRATe
INPut:EATT
INPut:EATT:AUTO
INPut:GAIN:STATe
INPut:IMPedance
INPut:SELect
INPut:ATTenuation <Value>
This command programs the input attenuator. To protect the input mixer against dam-
age from overloads, the setting 0 dB can be obtained by entering numerals, not by
using the DOWN command.
The RF attenuation can be set in 5 dB steps (R&S FSV with option R&S FSV-B25 or
R&S FSVA: 1 dB steps). The range is specified in the data sheet. If the current refer-
ence level cannot be set for the set RF attenuation, the reference level is adjusted
accordingly.
In the default state with "Spectrum" mode, the attenuation set on the step attenuator is
coupled to the reference level of the instrument. If the attenuation is programmed
directly, the coupling to the reference level is switched off.
This function is not available if the R&S Digital I/Q Interface (R&S FSV-B17) is active.
Parameters:
<Value>
Example:
Mode:
Manual operation:
INPut:ATTenuation:AUTO <State>
This command automatically couples the input attenuation to the reference level (state
ON) or switches the input attenuation to manual entry (state OFF).
This function is not available if the R&S Digital I/Q Interface (R&S FSV-B17) is active.
Parameters:
<State>
Example:
Manual operation:
Operating Manual 1176.7561.02 ─ 06
Remote Commands of the Analog Demodulation (R&S FSV–K7)
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*RST:
INP:ATT 30dB
Sets the attenuation on the attenuator to 30 dB and switches off
the coupling to the reference level.
all
See "RF Atten Manual/Mech Att Manual"
ON | OFF
*RST:
INP:ATT:AUTO ON
Couples the attenuation set on the attenuator to the reference
level.
See "RF Atten Auto/Mech Att Auto"
Analog Demodulation Option R&S FSV–K7
10 dB (AUTO is set to ON)
ON
on page 46
on page 47
177