Agilent Technologies X Series Manual page 411

Dependencies
Couplings
Preset
Initial S/W Revision
Signal ID Mode
Lets you set which Signal ID mode you will use, either Image Suppress or Image Shift.
Key Path
Remote Command
Example
Preset
State Saved
Initial S/W Revision
Image Suppress
The Image Suppress mode of Signal ID mathematically removes all image and multiple responses of
signals present at the mixer input. Two hidden sweeps are taken in succession. The second sweep is
offset in LO frequency by 2*IF/N. For each point in each trace, the smaller amplitude from the two
traces is taken and placed in that point in Trace 1. Responses of each trace that lie on top of one another
will remain and are valid signals, others are images and are suppressed.
Signal ID is not available in some measurements. If the Signal ID key does
not appear or is grayed out while in your measurement, then it is not available.
Because Signal ID uses data from two successive sweeps, several trace and
sweep functions are grayed out in Signal ID. See the documentation for your
measurement for details on which trace keys are grayed out.
Signal ID is not available with Signal Track so Signal ID will be grayed out if
in Signal Track. Message:
Signal ID will be turned off when External Mixer is turned off. Signal ID
cannot be turned on when using internal mixing.
Rules for auto coupling of the Sweep and FFT keys are changed with Signal
ID on. For both the dynamic range case and the speed case, swept is chosen
whenever any form of Signal ID is on. If Manual FFT is selected, the Signal
ID key is grayed out.
Whenever Signal ID is on, a warning message will be generated
If Signal ID is selected in a measurement that does not support it, a warning is
generated
The Auto Rules for detector selection select Normal for all active traces when
Signal ID is turned on.
This is unaffected by Preset but is set to OFF on a "Restore Input/Output
Defaults"
A.08.01
Input/Output, External Mixer
[:SENSe]:SIDentify:MODE ISUPpress|ISHift
[:SENSe]:SIDentify:MODE?
:SID:MODE ISUP
:SID:MODE?
This is unaffected by Preset but is set to ISUPpress on a "Restore Input/Output
Defaults"
Saved in state
A.08.01
Input/Output
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