HP 8753D - Page 296

The F
ormat Menu
The
4
F
ORMAT
5
key provides
access to
the
format
menu.
This
menu
allows
you
to
select
the
appropriate
display format
for the
measured
data.
The
following
list
identies
which
formats
are
available by
means of
which
softkeys:
N
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
LOG MAG
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
PHASE
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
DELAY
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
SMITH
CHART
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
POLAR
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
LIN
MAG
N
N
N
N
N
N
N
N
N
N
N
SWR
N
N
N
N
N
N
N
N
N
N
N
N
N
N
REAL
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
IMAGINARY
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
dierent
marker
types
for
readout
of
values
.
The
selected
display
format
of
a
particular
S-parameter
or
input
is
assigned
to
that
parameter
.
Thus
if
dierent
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
illustrations
below
show
a
reection
measurement
of
a
bandpass
lter
displayed
in
each
of
the
available
formats
.
Log
Magnitude
F
ormat
The
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
LOG
MAG
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
.
Figure
6-11
illustrates
the
bandpass
lter
reection
data
in
a
log
magnitude
format.
Application and Operation Concepts 6-29