Agilent Technologies N1911A Programming Manual page 170

2 MEASurement Commands
Example
READ2:RAT? DEF,1,(@1),(@2) This command queries the lower
Error Messages
• INITiate:CONTinuous must be set to OFF on both channels, otherwise
142
Item Description/Default
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.
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
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.
error –213, "INIT ignored" occurs.
window/upper measurement ratio
measurement of Channel A over
Channel B, using the current sensor range
and a resolution of 1 on both channels.
N1911A/1912A P-Series Power Meters Programming Guide
Range of Values
2
1 to 4
1.0, 0.1, 0.01, 0.001
1
DEF
3
(@1),(@2)
3
(@2),(@1)
(@1),(@1)
3
(@2),(@2)