Technical data

MEASurement Commands 2
N1911A/1912A P-Series Power Meters Programming Guide 157
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 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)
3
(@2),(@1)
3
(@1),(@1)
(@2),(@2)
3
Item Description/Default Range of Values
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.