HP HP 8753E, Руководство пользователя, Страница: 503 / 699

Power meter calibration occurs on each sweep. Each
measurement point is measured by the power meter, which
provides the analyzer with the actual power reading. The
analyzer corrects the power level at that point. The number
of measurement/correction iterations performed on each
. . . . . . . . . . .
This measurement mode sweeps slowly, especially when the
measured power is low. Low power levels require more time for
the power meter to settle. The power meter correction table in
memory is updated after each sweep. This table can be read or
changed via HP-IB.
displays a table of limit segments on the LCD, superimposed on
the trace. The edit limits menu is presented so that limits can
be or changed. It is not necessary for limit lines or limit
testing to be on while limits are defined.
presents the edit list menu. This is used in with
the edit menu to or modify the frequency
sweep list. The list frequency sweep mode is selected with the
: . . . . . . . . .
adjusts the electrical delay to balance the phase of the DUT. It
simulates a variable length
transmission line, which can
be added to or removed from a receiver input to compensate
for interconnecting cables, etc This function is similar to
the mechanical or analog “line stretchers” of other network
analyzers. Delay is annotated in of time with secondary
labeling in distance for the current velocity factor.
causes the instrument to beep once.
terminates the HP-GL “LB” command.
sets the output on the test set interconnect to normally
high with a 10 pulse high at the end of each sweep.
sets the output on the test set interconnect to normally low
with a 10 pulse low at the end of each sweep.
deletes the entire title.
runs the selected service test.
selects the auto external source mode.
selects the manual external source mode.
is similar to the trigger on sweep, but triggers each data point in
a sweep.
is used when the sweep is triggered on an externally generated
signal
to the rear panel EXT TRIGGER input.
External trigger mode is allowed in every sweep mode.
8-14 Key Definitions