Keysight x-series Instruction Manual

4 System
4.6 Alignments
set to Off, you are now responsible for maintaining warranted operation by updating
the alignments when they expire. The Auto Align, Alert mechanism will notify you
when alignments have expired. One solution to expired alignments is to perform the
Align All, Now operation. Another is to return the Auto Align selection to Normal.
The Auto Align Off setting is rarely the best choice, because Partial gives almost the
same improvement in throughput while maintaining the warranted performance for
a much longer time. The choice is intended for unusual circumstances, such as the
measurement of radar pulses where you might want the revisit time to be as
consistent as possible.
When Auto AlignOff is selected, the Auto Align Off time is initialized and the elapsed
time counter begins.
When Auto AlignOff is selected, the Settings Panel indicates Align: Off in an amber
color. The amber color reminds you that you are responsible for maintaining the
warranted operation of the instrument.
4.6.1.2 All but RF
Configures automatic alignment to include or exclude the RF subsystem.
(Eliminating the automatic alignment of the RF subsystem prevents the input
impedance from changing. The normal input impedance of 50 ohms can change to
an open circuit when alignments are being used. Some devices under test do not
behave acceptably under such circumstances, for example by showing instability.)
When All but RF is ON, the operator is responsible for performing an Align Now RF
when RF-related alignments expire. The Auto Align, Alert mechanism will notify you
to perform an Align Now All when the combination of time and temperature
variation is exceeded.
When All But RF is ON, the Settings Panel indicates Align: Auto/No RF (in amber).
The amber color reminds you that you are responsible for maintaining the RF
alignment of the instrument.
Remote
Command
:CALibration:AUTO:MODE ALL | NRF
:CALibration:AUTO:MODE?
Example
:CAL:AUTO:MODE NRF
Preset Unaffected by Preset but set to ALL by Restore Defaults >"Alignments" on page 1798
State Saved No
4.6.1.3 Alert
The instrument signals an Alert when conditions exist such that you will need to
perform a full alignment (for example, Align Now All). Alert can be configured in one
Short Range Comms & IoT Mode User's &Programmer's Reference 1804

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)