Agilent Technologies Signal Analyzer N9030a - Manual (Page 732)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Marker Function
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In the X-Series the marker itself has a width attribute, which you set using the Band Span
function. The marker shows “wings” that define the edges of the band in which the Band Power
is being measured. You only need one marker, not a pair of markers, to completely define a Band
Power function (making it possible to do Delta Band Power, which PSA and ESA could not do).
Additional control functions of Band Left and Band Right are provided for the case when you
need to precisely set the band edges. Note that the marker itself always remains centered in the
band.
To map the old Span Pair and Band Pair/Delta Pair functions to the X-Series for code
compatibility, aliases and compatibility commands were added. Since Span Pair and Band
Pair/Delta Pair were primarily used for making band power measurements, the aliases are
provided for setting the parameters of a Band Function. If the user was using the old commands
for anything other than Band Power these aliases will likely not yield compatible results.
For example, some users took advantage of the fact that the Band Pair commands let you
arbitrarily set the frequency (time) of a delta marker and its non-fixed reference marker. In these
cases, which had nothing to do with band Power, the new commands will not be compatible. For
these use cases the user must use two markers and position each using the CALC:MARK:X
commands, since “marker pairs” do not exist anymore.
732 Remote Language Compatibility Measurement Application Reference