Keysight x-series User Manual

4 System
4.7 Licensing
4.7.11 Validate License (Remote Query Only)
Lets you query whether a particular license is currently valid.
Remote
Command
:SYSTem:LKEY? <"OptionInfo">
Example
:SYST:LKEY? "N9073A-1FP"
Notes <”OptionInfo”> contains the feature and the version. You must specify the feature but can omit
the version. If you omit the version, the system regards it as the latest one
Return Value:
<”LicenseInfo”> if the license is valid, null otherwise
<”LicenseInfo”> contains the signature, the expiration date, and serial number if transportable
Return Value Example:
“B043920A51CA”
4.7.12 Host ID Query (Remote Query Only)
Returns the Host ID as a string.
Remote Command
:SYSTem:HID?
Spectrum Analyzer Mode User's &Programmer's Reference 2188

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)