MEASurement Commands 2
N1911A/1912A P-Series Power Meters Programming Guide 171
[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
source list 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).
(@1),(@2)
[c]
(@2),(@1)
[c]
(@1),(@1)
(@2),(@2)
[c]
MEAS2:RAT? DEF,1,(@1),
(@2)
This command queries the lower window/
upper measurement ratio measurement of
Channel A over Channel B, using the
current sensor range and a resolution of 1
on both channels.
Item Description/Default Range of Values