Keysight N1911A Programming Manual page 165

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[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.
Example
MEAS1:REL? -50DBM,2,(@2)
N1911A/1912A P-Series Power Meters Programming Guide
Description/Defaul t
The channel which the command is implemented on.
If unspecified the current window setup is used. However, on the
N1912A, if the window shows a ratio or difference measurement,
the upper window defaults to Channel A and the lower window
to Channel B.
MEASurement Commands
This command queries the upper window/
upper measurement relative measurement of
Channel B, using an expected power level of
–50 dBm and a resolution setting of 2.
Range of Values
(@1)
(@2) (N1912A only)
2
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