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The Format Menu
The
@GGZ)
key provides access to the format menu. This menu allows you to select the
appropriate display format for the measured data. The following list identifies which formats
are available by means of which softkeys:
/
.““‘::~.:;
*
.:.:.::.,.
.
:~~~.,:..~~~.
.
;Jggg
i
. . . . . . . . . . . . . . . . . . .
L.
.
::~~~~~~~~~
The analyzer automatically changes the units of measurement to correspond with the displayed
format. Special marker menus are available for the polar and Smith formats, each providing
several different marker types for readout of values.
The selected display format of a particular S-parameter or input is assigned to that parameter.
Thus if different S-parameters are measured, even if only one channel is used, each parameter
is shown in its selected format each time it is displayed.
The
ilhrstrations
below show a reflection measurement of a
bandpass
filter
displayed in each of
the available formats.
Log Magnitude Format
::::
. . . .
.,..,.
,...............,
.;,.,.,.,.,.,.,..,~.....;.~.
. . . . . _
_
.,.,.
_
,. .,.
.,.,.
The ~~~~~~~ softkey displays the log magnitude format. This is the standard Cartesian format
used to display magnitude-only measurements of insertion loss, return loss, or absolute power
in
dB
versus frequency.
F’igure
6-11 illustrates the
bandpass
Nter
reflection data in a log
magnitude format.
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Application and Operation Concepts