2 MEASurement Commands
130 N1911A/1912A P-Series Power Meters Programming Guide
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.
Example
Error Messages
• INITiate:CONTinuous must be set to OFF, otherwise error –213, “INIT
ignored” occurs.
•If TRIGger:SOURce is set to BUS or HOLD, error –214, “Trigger
deadlock” occurs.
resolution A numeric value for the resolution. If it is
unspecified the current resolution setting is
used. If a value is entered it should
correspond to the current resolution setting
otherwise an error occurs.
1 to 4
2
1.0, 0.1, 0.01, 0.001
DEF
1
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)
Item Description/Default Range of Values
READ2:POW:AC? This command queries the lower
window/upper measurement.
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