HP E4418B Programming Manual page 379

STATus Subsystem
STATus:QUEStionable
STATus:QUEStionable
The questionable register set contains bits which give an indication of the
quality of various aspects of signals processed by the power meter as a
whole.
The following bits in these registers are used by the power meter:
Bit 3 is set by the logical OR outputs of the
STATus:QUEStionable:POWer:SUMMary register set.
Bit 8 is set by the logical OR outputs of the
STATus:QUEStionable:CALibration:SUMMary register set.
Bit 9 is set if power-on self-test fails, and cleared if it passes.
Syntax
10-20
Bit Decimal
Definition
Number Weight
0 to 2 - Not used
3 8 POWer Summary
4 to 7 - Not used
8 256 CALibration Summary
9 512 Power On Self Test
10 to 15 - Not Used (bit 15 always 0)
STAT :QUES
HP E4418B/E4419B Programming Guide