Keysight N1911A Programming Manual page 173

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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.
[c] N1912A only.
Example
MEAS:RAT:REL?
N1911A/1912A P-Series Power Meters Programming Guide
Description/Defaul t
This channel list specifies the channels used to calculate the
ratio.
If unspecified and the current window setup is a ratio
measurement then this ratio setup is used, otherwise it defaults
to Channel A/B (N1912A) or A/A (N1911A).
MEASurement Commands
This command queries the relative ratio
measurement on the upper window/upper
measurement.
Range of Values
[c]
(@1),(@2)
[c]
(@2),(@1)
(@1),(@1)
[c]
(@2),(@2)
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