Keysight x-series User Manual

6 Input/Output
6.6 Freq Ref Input
Example
:ROSC:PXIR:EXT:LOCK?
Notes Returns “1” if the Freq Ref Input is External and Reference is locked. Otherwise returns “0”
When the Freq Ref Input is External and Reference is unlocked, the following warning message
appears in the status bar:
Settings Alert; M9300A Ext Ref Unlocked
Dependencies Only available when Select Ref is not NONE
2458 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)