Agilent Technologies 4395A - Trigger

4
T
rigger
5
Front
Panel
Key
Description
4
Trigger
5
Network/Impedance
Analyzer
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SWEEP:HOLD Freezes
the
data
trace
on
the
display
and
the
analyzer
stops
sweeping
and
taking
data.
The
notation
\Hld"
is
displayed
at
the
left
of
the
graticule
.
If
the
\ 3
" indicator
is on
(at
the
left
side
of
the
display),
trigger
a new
sweep by
pressing
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SINGLE
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SINGLE Makes
one sweep
of data
and returns
to the
hold
mode
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NUMBER
of
GROUPS
Triggers
a
user-specied
number
of
sweeps
and
returns
to
the
hold
mode
.
If
averaging
is
on,
set
the
number
of
groups
at
least
equal
to
the
averaging
factor
selected to
allow
measurement
of
a
fully
averaged
trace
.
Entering
the
number
of
groups
resets
the
averaging
counter
to
1.
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CONTINUOUS Triggers
the
sweep
automatically
and
continuously
(the
trace
is
updated
with
each
sweep).
This
is
the
standard
sweep
mode
.
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TRIGGER:[FREE
RUN]
Displays
the menu
used to
select the
trigger
source
.
The
trigger
source
is
common
to
both
channels.
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FREE
RUN
Selects
the
internal
trigger
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EXTERNAL Selects
the
external
trigger
input
from
the
BNC
on
the
rear
panel.
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MANU
AL
Selects
the manual
trigger.
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TRIG
EVENT[ON
SWEEP]
T
oggles
the
trigger
event
mode
.
This
function
is
available
in
the
network
analyzer mode
only
.
When
in
the
spectrum
analyzer
mode
,
this
softkey does
not appear
on the
menu.
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[ON POINT]
Shows
the
analyzer
triggers
each
data
point
in
a
sweep
.
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[ON
SWEEP]
Shows
the
analyzer
triggers
a sweep
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TRIG
PLRTY
POS
neg
Selects
the
trigger
signal
polarity
of
an
externally
generated
signal
connected
to
the
rear panel
EXT
TRIGGER
input.
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POS
neg
(positive)
Shows
the
sweep
is
started
with
a
low-to-high
transition
of
a
TTL
signal.
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pos
NEG
(negative)
Shows
the
sweep
is
started
with
a
high-to-low
transition
of
a
TTL
signal.
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MEASURE
REST
ART
Aborts
the
sweep
in
progress
and
then
restarts
the
measurement.
This
can
be
used
to
update
a
measurement
following
an
adjustment
of
the
DUT
or
test
signal
source
.
When
a
full
two-port
calibration
is
in
use
in
the
network
analyzer
mode
,
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MEASURE REST
ART initiates
an update
of
both
the
forward
and
reverse
S-parameter
data.
If
the
analyzer
is
measuring
a
number
of
groups,
the sweep
counter is
reset to
1.
If
averaging
is
on,
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MEASURE
REST
ART
resets
the
sweep-to-sweep
averaging
and
is
eectively
the
same
as
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A
VERA
GING
REST
ART .
If the sweep trigger is in the
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HOLD mode,
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???????????????
MEASURE RESTART executes a single
sweep.If
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DUAL CHAN is on (screen displays both measurement channels),
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MEASURE REST
ART executes a single sweep
of both channels even if
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COUPLED CH is o.
B-34 Softkey Reference