HP 8753E - Page 541

pauses the execution of subsequent sequence commands for x
number of seconds. Terminate this command with a].
Entering a 0 in wait x causes the instrument to wait for prior
sequence command activities to finish before allowing the
next command to begin. The wait 0 command only affects
the command immediately following it, and does not affect
commands later in the sequence.
selects the display warning annotation for color modification.
brings up the color dell&ion menu. The warning annotation
default color is black.
defines the standard (and the offset) as rectangular waveguide.
This causes the analyzer to assume a dispersive delay (see
..:. . . :::.: ,..Y... . . . . .:. ., . . . . .” S.fZf :.f.~.:...~
: :::::::: :::.... . . . . . . . .
~~~~~~~~~~ above).
._.~.~.~.~.~.~.~.~.i..i
.._........ i;;;;..;;..;;;;~~............ :... :_~..,.,.............
applies a non-linear phase shift for use with electrical delay
which follows the standard dispersive phase equation for
.,. _ ::
;.... ,,, ;/. ..T.
.: ;.,....,.i..;.,.,.,.,~~ .,.,.,.,.,.,...,.,......., .,.,.,.,.,;.,<< .,.,.,.,.,...
rectangulw waveguide. men ~~~~~~~~~~~~ b pressed,
.,
..,
the active function becomes the WAVEGUIDE CUTOFF
frequency, which is used in the phase equation. Choosing a
Start frequency less than the Cutoff frequency results in phase
errors.
is used to set the amplitude parameter (for example 3 dB) that
defines the start and stop points for a bandwidth search. The
bandwidth search feature analyzes a bandpass or band reject
trace and calculates the center point, bandwidth, and Q (quality
factor) for the specified bandwidth. Bandwidth units are the
units of the current format.
turns on the bandwidth search feature and calculates the
center stimulus value, bandwidth, and Q of a bandpass or band
reject shape on the trace. The amplitude value that defines the
pm&ad orreje&badis wtusingthe ~~~~~~~~softkey.
.._........... - ._............ - .._.._ -.
Four markers are turned on, and each has a dedicated use.
Marker 1 is a starting point from which the search is begun.
Marker 2 goes to the bandwidth center point. Marker 3 goes to
the bandwidth cutoff point on the left, and Marker 4 to the
cutoff point on the right.
If a delta marker or fixed marker is on, it is used as the
reference point from which the bandwidth amplitude is
measured. For example, if marker 1 is the delta marker and is
set at the passband maximum, and the width value is set to
-3 dl3, the bandwidth search 0nds the bandwidth cutoff points
3 dB below the maximum and calculates the 3 dB bandwidth
and Q.
If marker 2 (the dedicated bandwidth center point marker) is
the delta reference marker, the search finds the points 3 dB
down from the center.
If no delta reference marker is set, the bandwidth values are
absolute values.
B-62 Key Definitions