HP 8753D - Page 493

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CALIBRATE
MENU
leads to
the calibration
menu, which
provides several
accuracy
enhancement procedures
ranging from
a simple
frequency
response calibration
to a
full two-port
calibration.
At
the
completion of
a calibration
procedure,
this
menu
is
returned
to the
screen, correction
is automatically
turned
on,
and
the
notation Cor
or C2
is displayed
at
the
left
of
the
screen.
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CALIBRATE:
NONE
is
underlined
if
no
calibration
has
been
performed
or
if
the
calibration
data
has
been
cleared.
Unless
a
calibration
is
saved
in
memory
,
the
calibration
data
is
lost
on
instrument
preset,
power
on,
instrument
state
recall,
or
if
stimulus
values
are
changed.
4
CENTER
5 is
used,
along
with
the
4
SPAN
5 key
,
to
dene
the
frequency
range
of
the
stimulus
.
When
the
4
CENTER
5
key
is
pressed,
its
function
becomes
the
active
function.
The
value
is
displayed
in
the
active
entry
area,
and
can
be
changed
with
the
knob
,
step
keys
,
or
numeric
keypad.
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CENTER
sets
the
center
frequency
of
a
subsweep
in
a
list
frequency
sweep
.
4
CHAN 1
5
allows
you
to
select
channel
1
as
the
active
channel.
The
active
channel
is
indicated
by
an
amber
LED
adjacent
to
the
corresponding
channel
key
.
The
front
panel
keys
allow
you
to
control
the
active
channel,
and
all
of
the
channel-specic
functions
you
select
apply
to
the
active
channel.
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CH1
DATA
[
]
brings
up
the
printer
color
selection
menu.
The
channel
1
data
trace
default
color
is
magenta
for
color
prints
.
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CH1
DATA
LIMIT
LN
selects
channel
1
data
trace
and
limit
line for
display
color
modication.
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CH1
MEM
selects
channel
1
memory
trace
for display
color modication.
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CH1
MEM
[
]
brings
up
the
printer
color
selection
menu.
The
channel
1
memory
trace
default
color
is
green
for
color
prints
.
4
CHAN 2
5
allows
you
to
select
channel
2
as
the
active
channel.
The
active
channel
is
indicated
by
an
amber
LED
adjacent
to
the
corresponding
channel
key
.
The
front
panel
keys
allow
you
to
control
the
active
channel,
and
all
of
the
channel-specic
functions
you
select
apply
to
the active
channel.
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CH2 DATA [ ]
brings up the printer color
selection menu. The channel 2 data
trace default color is blue
for color prints
.
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CH2 DATA
LIMIT LN
selects channel 2 data trace and limit line for display color
modication.
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CH2 MEM [ ]
brings up the printer color selection menu. The channel 2
memory trace default color is red for color prints
.
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CH2 MEM REF LINE
selects channel 2 memory and the reference line for display
color modication.
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CH PWR [COUPLED] is used to apply the same power levels to each channel.
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CH PWR [UNCOUPLED]
is used to apply dierent power levels to each channel.
Key Denitions 9-7