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HP 8753D - Page 491

HP 8753D
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when
averaging is
on. The
sweep count
for
averaging
is
reset
to
1
whenever an
instrument
state
change
aecting
the
measured
data
is made
.
At
the start
of
the
averaging
or
following
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AVERAGING
RESTART
,
averaging
starts at
1 and
averages each
new sweep
into the
trace
until it
reaches the
specied averaging
factor.
The sweep
count
is displayed
in the
status notations
area below
\A
vg"
and
updated
every
sweep
as it
increments.
When the
specied
averaging
factor is
reached, the
trace
data
continues
to
be
updated,
weighted by
that averaging
factor
.
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AVERAGING
RESTART
averaging
starts at
1 and
averages each
new
sweep
into
the
trace
until it
reaches the
specied averaging
factor
.
The
sweep
count
is displayed
in the
status notations
area
below
\A
vg"
and
updated
every sweep
as
it
increments
.
4
A
VG
5
is used
to
access
three
dierent
noise
reduction
techniques:
sweep-to-sweep
averaging,
display
smoothing,
and
variable
IF
bandwidth.
Any
or
all of
these
can
be
used
simultaneously
.
A
veraging
and
smoothing
can
be
set
independently
for
each
channel,
and
the IF
bandwidth can
be set
independently
if
the
stimulus
is
uncoupled.
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B
measures
the
absolute
power
amplitude at
input B
.
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B/R
calculates
and
displays
the
complex
ratio
of
input
B
to
input
R.
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BACK
SPACE
deletes
the
last
character
entered.
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BACKGROUND
INTENSITY
sets
the
background
intensity
of
the
LCD
as
a
percent
of
white
.
The
factory-set
default
value
is
stored
in
non-volatile
memory
.
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BANDPASS
(Option
010
only)
sets
the
time-domain
bandpass
mode
.
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BEEP
DONE
ON
off
toggles
an
annunciator
which
sounds
to
indicate
completion
of
certain
operations
such
as
calibration
or
instrument
state
save
.
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BEEP
FAIL
on
OFF
turns
the
limit
fail
beeper
on
or
o.
When
limit
testing
is
on
and
the
fail
beeper
is
on,
a
beep
is
sounded
each
time
alimit
test
is
performed
and
a
failure
detected.
The
limit
fail
beeper
is
independent
of
the
warning
beeper
and
the
operation
complete
beeper
.
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BEEP
WARN
on
OFF
toggles
the
warning annunciator
.
When
the
annunciator
is
on
it
sounds a warning when a cautionary message is displayed.
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BLANK DISPLAY
switches o the analyzer's display
. This feature may
be helpful
in prolonging the life of the LCD in applications where
the
analyzer is left unattended (such as in an automated test
system). Pressing any front panel key will restore the default
display operation.
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BRIGHTNESS
adjusts the brightness of the color being modied. See A
djusting
Color for an explanation of using this softkey for color
modication of display attributes.
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C0
is used to enter the C0 term in the denition of an OPEN
standard in a calibration kit, which is the constant term of the
cubic polynomial and is scaled by 10
0
15
.
Key Denitions 9-5

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