Keysight x-series User Manual

4 System
4.6 Alignments
4.6.2.6 Align Now All but RF Preselector
Only available in models with the RF Preselector, such as the N9048B. It is identical
to the "Align Now All" on page 2110 (plus RF Presel) function, except that the RF
Preselector is only partially aligned. Only the System Gain, Mechanical attenuator
and Electronic attenuator alignments on the RF Preselector path are aligned. The
purpose of these alignments is to improve the RF Preselector path amplitude
variation compared to the bypass path.
Remote Command
:CALibration:NRFPselector
:CALibration:NRFPselector?
Example
:CAL:NRFP
Dependencies Only appears in N9048B. Sending the SCPI command or query in other models generates an error
Status Bits/OPC
dependencies
Bits 12 or 14 may be set in the Status Questionable Calibration register
4.6.2.7 Align Now RF Presel Only (20 Hz to 3.6 GHz)
Only available in models with the RF Preselector, such as the N9048B. It executes an
alignment of the RF Preselector section. The receiver will stop any measurement
currently underway, perform the alignment, and then restart the measurement from
the beginning (similar to pressing the Restart key). Only the RF Preselector is
aligned; no Align Now All function is performed first.
The query (:CALibration:RFPSelector:ONLY?) invokes the alignment of the RF
Preselector on both Conducted and Radiated Band, and returns a success or failure
value. Successful completion clears the “Align 20 Hz to 3.6 GHz required” Error
Condition, and clears Bit 1 and Bit 2 in the Status Questionable Calibration Extended
Needed register.
The elapsed time counter will begin for Last Align Now, Conducted Time and Last
Align Now Radiated Time and the temperature is captured for Last Align Now,
Conducted Temperature and Last Align Now, Radiated Temperature. The alignment
can be interrupted by pressing the Cancel (ESC) front-panel key or remotely with
Device Clear followed by the :ABORt SCPI command. When this occurs, the Error
Condition “Align 20 Hz to 3.6 GHz required” is set because new alignment data may
be employed for an individual subsystem, but not a cohesive set of data for all
subsystems.
The “Align 20 Hz to 3.6 GHz required” Error Condition will appear when this
alignment has expired. The user is now responsible to perform the Align Now, 20 Hz
to 3.6 GHz in order to keep the receiver in warranted operation. This alignment can
only be performed by the user, as it is not part of the Auto Align process.
Remote Command
:CALibration:RFPSelector:ONLY
2117 Spectrum Analyzer Mode User's &Programmer's Reference

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)