Keysight N1911A Programming Manual page 127

[a] The mnemonic DEF means DEFault. This is not equivalent to the DEFault parameter used in the command sub-systems. The parameters must
be entered in the specified order. If parameters are omitted, they default from the right. The parameter DEFault is used as a place holder.
Specifying DEF leaves the parameter value unchanged.
[b] When the measurement result is linear this parameter represents the number of significant digits. When the measurement result is
logarithmic 1 to 4 represents of 1, 0.1, 0.01 and 0.001 respectively.
[c] N1912A only.
Example
CONF1:DIFF:REL DEF,1,
(@1),(@2)
N1911A/1912A P-Series Power Meters Programming Guide
MEASurement Commands
This command configures the upper
window/upper measurement to make a
difference measurement of
Channel A -Channel B with relative mode
on, using the current sensor range and a
resolution of 1 on both channels.
2
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