Keysight N9000B - 6.6.3 Default External Ref Freq; 6.6.4 LO Ref Input

6 Input/Output
6.6 Freq Ref Input
Model Min Max
VXT models 100MHz 100MHz
M9410E/11E/15E/16E 100 MHz 100 MHz
All other models 1MHz 100MHz
6.6.3 Default External Ref Freq
Restores the External Ref Freq to its default of 10 MHz.
When you set an External Ref Freq value with the Ext Ref Freq control, that
Frequency is persistent; is not affected by Mode Preset or Input/Output Preset, and
survives shutdown and power cycle. This control allows you to reset the External Ref
Freq to its default value.
NOTE
The persistence of the External Ref Freq is a new behavior as of firmware
version A.18.00, necessitating the addition of this control. In versions before
A.18.00, the frequency reset on a power cycle/restart. Thus, you may need to
use this command to retain backwards compatibility.
Remote Command
[:SENSe]:ROSCillator:EXTernal:FREQuency:DEFault
Example
:ROSC:EXT:FREQ:DEF
resets the external ref frequency
Notes Command only; no query
Dependencies Grayed-out if the Ext Ref Freq is already set to the default
Does not appear in EXM, UXM, VXT models or M8920A/20B
6.6.4 LO Ref Input
This parameter sets the LO Reference signal Input to External or Internal.
Remote Command
[:SENSe]:ROSCillator:LO:INPut INTernal | EXTernal
See "Option Details" on page 2455
[:SENSe]:ROSCillator:LO:INPut?
Example
:ROSC:LO:INP EXT
:ROSC:LO:INP?
Dependencies Only available in VXT models M9410A/11A/15A/16A when MIMO is on
Preset
INTernal
State Saved Saved in instrument state
2454 Spectrum Analyzer Mode User's &Programmer's Reference