Attenuator Commands

:ATT?

Query the current attenuation setpoint.

Response: Floating point value in dB

Example:

:ATT?
31.25

:SETATT \<value>

Set the attenuation setpoint.

Parameters:

• <value> — Attenuation in dB. Valid range: 0 to 62.5, in steps of 0.25.

Example:

:SETATT 45.5

Errors:

• -108 — Invalid attenuation value (out of range or invalid step size)

:STARTUPATT:VALUE?

Query the startup attenuation value — the attenuation applied when the device boots.

Short form: :STARTUPATT:VAL?

Response: Floating point value in dB

Example:

:STARTUPATT:VALUE?
62.5

:STARTUPATT:VALUE \<value>

Set the startup attenuation value. This value is persisted and applied on every device boot.

Short form: :STARTUPATT:VAL

Parameters:

• <value> — Attenuation in dB. Valid range: 0 to 62.5, in steps of 0.25.

Example:

:STARTUPATT:VALUE 30.0

Errors:

• -108 — Invalid attenuation value (out of range or invalid step size)

Quick Reference

Command	Description
*IDN?	Query identification
*RST	Reset to 0 dB
*CLS	Clear error queue
:ATT?	Query current attenuation
:SETATT <dB>	Set attenuation (0–62.5 dB, 0.25 steps)
:STARTUPATT:VALUE?	Query startup attenuation
:STARTUPATT:VALUE <dB>	Set startup attenuation
:SYSTem:FIRMware:VERSion?	Query firmware version
:SYSTem:FIRMware:STATus?	Query update status
:SYSTem:FIRMware:UPDate <url>	Install firmware from URL
:SYSTem:REBoot	Reboot device