464 Keysight N9038A MXE Service Guide
Service and Diagnostics Menus
Service Key Descriptions
When LO band lock is cancelled, the Advisory Event “LO Band Locked: Band
<x>” is cleared.
Off
Turns LO Band Lock to Off.
Band 0
Locks the instrument to Band 0.
Band 1
Locks the instrument to Band 1.
Band 2
Locks the instrument to Band 2.
Band 3
Locks the instrument to Band 3.
LO Control
Provides keys that allow you to control the LO. This is only present on analyzers
equipped with Opt EXM, External Mixing.
2nd LO Gain DAC
This parameter provides the ability to adjust the output gain of the 2nd LO
DAC. The range is from 0 to 4095 where 0 is the minimum gain and 4095 is the
maximum gain. Setting a value of 4096 or greater returns control to the
instrument. In External Mixing, this DAC controls the level of the 1st LO signal
at the front panel EXT MIXER connector.
External LO Turnoff
Disconnects the 1st LO path which will minimize the effect of the 1st LO signal
at the front panel EXT MIXER connector.
Align
This menu allows access to alignment diagnostic and individual subsystem
capabilities of the instrument.
Diagnostic
This menu contains items for controlling the operating behavior of
alignment and the alignment reporting capabilities.
Visible Align
This replaces the “Aligning 1 or 10” alignment progress messages
with messages that describe the alignment segment being executed.
Align Log…
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