MEASurement Commands 2
N1911A/1912A P-Series Power Meters Programming Guide 155
1
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.
2
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.
3
N1912A only.
Example
source list This channel list specifies the channels used to
calculate the difference.
If unspecified and the current window setup is a
difference measurement then this difference
setup is used, otherwise it defaults to Channel
A-B (N1912A) or A-A (N1911A).
(@1),(@2)
3
(@2),(@1)
3
(@1),(@1)
(@2),(@2)
3
Item Description/Default Range of Values
MEAS1:DIFF:REL? DEF,3,(@2)
,(@1)
This command queries the upper
window/upper measurement relative
difference measurement of
Channel B - Channel A, using the current
sensor range and a resolution setting of 3
on both channels.
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