HP 8712C User Manual page 432

the phase of the DUT. This is performed automatically, regardless of the
format and the measurement being made. Enough line length is added to or
subtracted from the receiver input to compensate for the phase slope at the
active marker position. This effectively flattens the phase trace around the
active marker, and can be used to measure electrical length or deviation from
linear phase. Additional electrical delay adjustments are required on DUl3
without constant group delay over the measured frequency span. Since this
feature adds phase to a variation in phase versus frequency, it is applicable
only for ratioed inputs.
Access Keys: (m) Maker Functions
marker value; does not change reference position. If markers are off, it first
turns on marker #I at its previous setting or the center frequency (default).
Access Keys: (MARKER) Nmkex" Flltnctfans
marker to center, marker to reference, marker to electrical delay, and marker
math functions.
flatness, and RF hlter statistics calculations on user-dehned trace segments.
Math
See FlzW~ss , RF Fi1%~ St&x , and §%tist;ics in this chapter.
marker search functions.
See "Using Markers" in Chapter 4 for more information.
Reference
nil
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