Agilent Technologies N1996A-503 User Reference page 303

Programming Fundamentals
Improving Measurement Speed
This forces you to reset your analyzer's measurement settings even if
they use similar mode setup or measurement settings. See Minimize
DUT/instrument setup changes. below. (Also note that *RST may put
the instrument in single measurement/sweep for some modes.)
Minimize DUT/instrument setup changes.
Some instrument setup parameters are common to multiple
measurements. You should look at your measurement process with an
eye toward minimizing setup changes. If your test process involves
nested loops, make sure that the inner-most loop is the fastest. Also,
check if the loops could be nested in a different order to reduce the
number of parameter changes as you step through the test.
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