2. Stimulus
Stop V
alue.
This value
could be
any
one
of
the
following:
The stop
frequency of
the source
in frequency
domain measurements
.
The stop
time in
time domain
measurements
or
CW
sweeps
.
The upper
limit of
apower
sweep
.
When the
stimulus is
in
center/span
mode
,
the
span
is
shown
in
this
space
.
The
stimulus
values
can be
blanked, as
described under
\
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
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
FREQUENCY
BLANK
Key"
in Chapter
9, \Key
Denitions
."
(F
or
CW
time
and
power
sweep
measurements
,
the CW
frequency is
displayed centered
between
the
start
and
stop
times
or
power
values
.)
3.
Status
Notations
.
This
area
shows
the
current
status of
various functions
for the
active
channel.
The
following
notations
are
used:
A
vg
=
Sweep-to-sweep
averaging
is on.
The averaging
count is
shown immediately
below
.
(See
\
4
A
V
G
5
Key"
in
Chapter
9,
\Key
Denitions
.")
Cor
=
Error
correction
is
on.
(F
or
error-correction
procedures
,
refer
to
Chapter
5,
\Optimizing
Measurement Results
."
F
or
error
correction
theory
,
refer
to
Chapter
6,
\Application and
Operation Concepts
.")
C?
= Stimulus
parameters
have
changed
from
the
error-corrected
state
,
or
interpolated
error
correction is
on.
(F
or
error-correction
procedures
,
refer
to
Chapter
5,
\Optimizing
Measurement Results
." F
or
error
correction
theory
,
refer
to
Chapter
6,
\Application
and
Operation
Concepts
.")
C2
=
Full
two-port
error-correction
is
active
and
either
the
power
range
for
each
port
is
dierent (uncoupled),
or
the
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
TESTSET
SW HOLD
is
activated.
The
annotation
occurs
because
the
analyzer
does
not
switch
between
the
test
ports
every
sweep
under
these
conditions
.
The
measurement
stays
on
the
active
port
after
an
initial
cycling
between
the
ports
.
(The
active
port
is
determined
by
the
selected
measurement
parameter
.)
Y
ou
can
update
all
the
parameters
by
pressing
4
MENU
5
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
MEASURE
RESTART
,or
4
MEAS
5
key.
Del
=
Electrical
delay
has
been
added
or
subtracted,
or
port extensions
are active
.
(See
Chapter
6,
\Application
and
Operation
Concepts"and
\
4
SCALE
REF
5
Key"
in
Chapter
9,
\Key Denitions
.")
ext =
Waiting
for an
external trigger
.
Ofs = Frequency oset mode is on. (See \Frequency Oset Operation" in Chapter 6,
\Application and Operation Concepts
.")
Of? =
Frequency oset mode
error, the IF frequency is not within 10 MHz of expected
frequency. LO inaccuracy is the
most likely cause
. (See \Frequency Oset
Operation" in Chapter 6, \Application and Operation
Concepts.")
Gat =
Gating is on (time domain Option
010 only). (F
or time domain measurement
procedures, refer to Chapter 2, \Making Measurements
."
For time domain theory
,
refer to Chapter 6 \Application and Operation Concepts.")
HP 8753D Description and Options 1-7
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