Agilent Technologies ESA-E Series Programmer's Manual page 222

Language Reference
INPut Subsystem
INPut Subsystem
The INPut subsystem controls the characteristics of analyzer input
ports.
Input Port Coupling
INPut :COUPling ACIDC
INPut :COUPling ?
Selects ac or dc coupling for the front panel INPUT port . A blockin g
capacitor is switched in for the ac mode .
CAUTION
Instrument damage can occur if there is a dc voltage present at the
INPUT and dc coupling is selected.
Factory Preset
and *RST: ac
Remarks: This command is available only on Agilent ES A
spectrum analyzer models E4402B Option UKB,
E4404B, or E4405B .
Front Panel
Access :
Input/Output (or Input), Coupling AC D C
Select Internal or External Mixer
INPut :MlXer INTernalIEBTerna l
INPut :MI%er ?
This command selects either the internal or external input mixer .
Factory Preset
and *RST:
INTerna l
Remarks:
Selecting the external input mixer activates all th e
keys in the Input Mixer menu and changes the R F
attenuation annotation readout on the display to "Ex t
Mix ."
Front Panel
Access :
Input/Output (or Input), Input Mixer Int Ext
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