Technical data
2 MEASurement Commands
128 N1911A/1912A P-Series Power Meters Programming Guide
READ[1]|2|3|4 Commands
The  READ? commands are most commonly used with the CONFigure 
command to cause a new power measurement to be taken and the result 
returned to the output buffer. The format of the result is set by 
FORM[:READ][:DATA]. Refer to Chapter 6, “FORMat Subsystem,” on page 
249 for further information.
• For the N1911A the READ? query is equivalent to:
ABORt
INITiate
FETCh?
• For the N1912A carrying out a single channel measurement the READ? 
queries are equivalent to:
ABORt1
INITiate1
FETCh1?
or
ABORt2
INITiate2
FETCh2?
• For the N1912A carrying out a difference measurement the 
READ:DIFFerence? queries are equivalent to:
ABORt1
and
ABORt2
INITiate1
INITiate2
FETCh:DIFFerence?
• For the N1912A carrying out a ratio measurement the READ:RATio? 
queries are equivalent to:
ABORt1
ABORt2
INITiate1
INITiate2
FETCh:RATio?










