Keysight x-series Instruction Manual

6 Input/Output
6.2 Input
Backwards
Compatibility
SCPI
:INPut:MIXer EXTernal | INTernal
:INPut:MIXer?
Backwards
Compatibility
Notes
PSA supports the following SCPI Command :
:INPut:MIXer:TYPE PRESelected | UNPReselect
:INPut:MIXer:TYPE?
PXA does not support the :INPut:MIXer:TYPE command
RF Input
Selects the front-panel RF input port to be the instrument signal input. If RF is
already selected, pressing this key accesses the RF input setup functions.
External Mixer
Lets you select an External Mixer through which to apply signal input to the
instrument. When selected, the LO/IF port becomes the input to the instrument.
External Mixing requires option EXM. The External Mixer key will not appear unless
option EXM is installed. The presence of the LO/IF connector alone does not
indicate that you have Option EXM licensed. To verify that option EXM is installed,
press System, Show, System.
When External Mixer is selected, the Center Freq key controls the setting of the
Center Freq in external mixing, which is separate from the settings of Center Freq for
the RF Input or BBIQ. Each input retains its unique settings for Center Freq. A
unique SCPI command is provided solely for the external mixing Center Freq (see
the Center Freq key description), which only affects the External Mixer CF, although
sending the generic Center Freq command while External Mixer is selected also
controls the External Mixer CF.
Unless option EXM is present, the External Mixer key is blanked, and all SCPI
commands associated with menus accessed by this key return an error
Manual FFT mode is available with external mixing, but not with Signal ID. All
settings under this key, and all Frequency settings, are remembered when you go
out of External Mixer, so that when External Mixer is chosen again, all the external
mixer functions will retain their previous settings, with the exception of Signal ID
which is set to OFF (Signal ID is also set to Off unless External Mixer is the selected
Input). Note that this differs from ESA and PSA, in which all external mixer settings
including Center Frequency are lost when you turn off External Mixing or Preset the
instrument.
X-series instruments have a combined LO Out/IF In connection, whereas earlier
instruments used separate ports for the LO Out and the IF in. Internal diplexers in
the instrument and the mixer simplify the connection for users – only a single SMA
cable is required.
Short Range Comms & IoT Mode User's &Programmer's Reference 2028

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)