2 MEASurement Commands
136 N1911A/1912A P-Series Power Meters Programming Guide
[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
Error Messages
– If the last measurement is not valid error –230, “Data corrupt or stale” occurs.
A measurement is valid after it has been initiated. It becomes invalid when
either a reset occurs or any measurement parameter, for example frequency,
is changed.
– If the expected_value and resolution parameters are not the same as the
current expected value and resolution settings on the specified window,
error –221, “Settings conflict” occurs.
source list 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.
(@1)
(@2) (N1912A only)
FETC1:REL? DEF,2,(@2) This command queries the upper window/
upper measurement relative measurement
of Channel B, using the current sensor
range and a resolution setting of 2.
Item Description/Default Range of Values
To Next Page
Loading...
