Sense[N]:Power:reference:state; Sense[N]:Power:reference:state:ratio - Keysight N774 C Series Programming Manual

4 Measurement Operations & Settings
Response: None
Example: :sens1:pow:ref:disp
Affects All power meters
Command:

:SENSe[n]:POWer:REFerence:STATe

Syntax: :SENSe[n]:POWer:REFerence:STATe<wsp><boolean>
Description: Sets the measurement units to relative or absolute units.
Parameters: A boolean value:
Response: None
Example: :sens1:pow:ref:stat 1
Affects All power meters
Command: :SENSe[n]:POWer:REFerence:STATe?
Syntax: :SENSe[n]:POWer:REFerence:STATe?
Parameters: None
Response: A boolean value:
Example: :sens1:pow:ref:stat? → 1
Affects All power meters
Command:

:SENSe[n]:POWer:REFerence:STATe:RATio

Syntax: :SENSe[n]:POWer:REFerence:STATe:RATio<wsp><slot number>|255|TOREF,<channel number>
Description: Selects the reference for the channel.
Parameters: Slot number:
255 or TOREF:
Channel number:
86
0 or OFF: absolute
1 or ON: relative
0: absolute
1: relative
an integer value representing the channel number you want to reference
results are displayed relative to an absolute reference
an integer value representing the channel number you want to reference
Keysight N774xC Series Multiport Power Meter Programming Guide