Technical data

1 Power Meter Remote Operation
42 N1911A/1912A P-Series Power Meters Programming Guide
Tab le 1- 3 Range of Values for Window Limits
Checking for Limit Failures
There are two ways to check for limit failures:
1 Use the SENSe:LIMit:FAIL? and SENSe:LIMit:FCOunt? commands
for channel limits or the
CALCulate[1|2]:LIMit:FAIL? and the
CALCulate[1|2]:LIMit:FCOunt? for window limits
2 Use the STATus command subsystem
Using SENSe and CALCulate
Using SENSe to check the channel limit failures in Figure 1- 5 would
return the following results:
Use the equivalent CALCulate commands for checking window limit
failures.
Window
Units
Default
Maximum Minimum Maximum Minimum
dB +200 dB
–180 dB
60 dB
–120 dB
dBm +230 dBm
–150 dBm
90 dBm
–90 dBm
% 999.9 X% 100.0 a% 100.0 M% 100.0 p%
W 100.000 XW 1.000 aW 1.000 MW 1.000 pW
SENSe:LIMit:FAIL? Returns 1 if there has been 1 or
more limit failures or 0 if there
have been no limit failures. In this
case 1 is returned.
SENSe:LIMit:FCOunt? Returns the total number of limit
failures, in this case 2.