Agilent Technologies Printer Accessories 85671A Manuale Utente
Functionality
The
utility's
main
function
is
to
make
phase
noise
measurements
.
It
also
has
several
other
functions
to
make
the
measurements
easier
to
make
,
save
,
compare
,
and
print.
The
Main
Menu
When
the
phase
noise
program
is
started,
the
screen
displays
the
main
menu
of
softkeys
and
the
con guration
parameters
as
shown
in
Figure
2-2.
The
con guration
parameters
are
either
the
default
set
for
the
rst
time
the
program
is
run,
or
they
are
the
same
as
the
last
time
the
program
was
used.
The
only
exception
to
this
is
the
carrier
frequency
.
It
will
re
ect
the
highest
signal,
within
the
marker
accuracy
,
that
was
present
on
the
spectrum
analyzer
display
when
the
phase
noise
program
was
invoked.
d
a
c
b
Figure
2-2.
Main
Menu
If
a
displayed
parameter
needs
to
be
changed,
this
may
be
done
using
the
NNNNNNNNNNNNNNNNNNNN
CONFIG
softkey
.
If
the
parameters
are
the
desired
values
,
a
phase
noise
measurement
may
be
made
either
at
a
single
o set
frequency
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MEASURE
SPOT
FRQ
)
or
over
a
range
of
o set
frequencies
(
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MEASURE
LOG
PLOT
).
The
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
RECALL
TRACE
softkey
will
generate
a
log
frequency
graticule
and
annotation
but
will
not
make
a
measurement.
This
softkey
allows
you
to
recall
a
saved
trace
without
waiting
for
a
measurement
to
complete
.
There
is
no
spectrum
analyzer
state
saved
with
a
saved
trace
,
so
the
user
must
remember
to
reconstruct
the
state
in
order
to
correctly
display
a
saved
trace
.
The
NNNNNNNNNNNNNN
HELP
softkey
makes
information
easily
accessible
to
assist
the
user
.
The
NNNNNNNNNNNNNNNNNNNNNNNNNN
EXIT
ALL
softkey
returns
the
instrument
to
normal
spectrum
analyzer
operation,
and
restores
the
original
instrument
state
.
This
is
the
only
recommended
way
to
exit
the
phase
noise
program.
Using
Using
the
Phase
Noise
Utility
2-5