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HP 8340b Operating Instructions

HP 8340b
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[HZ
/
AUTO]
(HP-IB:
HZ,
or
AU)
selects
hertz
for
a
frequency
function;
AUTO
affects
[SWEEP
TIME],
FREQ
STOP,
and
CW
RES:
Press
[SWEEP
TIME]
then
[AUTO]
to
obtain
the
shortest
possible
sweep
time
for
that
frequency
span;
press
[SHIFT]
[CF]
then
[AUTO]
to
couple
the
FREQ
STOP
increment
size
to
the
AF
frequency
span
(all
of
these
shifted
functions
are
explaiend
in
Figure
3-7).
When
one
of
the
AUTO-coupled
functions
is
active,
“AUTO”
or
its
complement
“FIXD”
(which
indicates
that
AUTO
is
not
active)
appears
in
the
ENTRY
DISPLAY.
[SHIFT]
(terminator
key)
allows
direct
electrical
access
to
the
internal
circuits,
registers,
and
buffers
of
the
HP
8340B/41B.
These
tremendously
powerful
functions
are
comprehensively
explained
in
the
optional
Component-Level
Service
Manual;
however,
a
brief
explanation
follows:
[SHIFT]
[GHz
/
dB(m)]
(HP-IB:
SHGZ)
allows
the
I/O
channel
to
be
specified.
The
I/O
chan¬
nel,
along
with
the
I/O
subchannel
(explained
in
the
following
paragraph)
defines
the
address
for
a
circuit
board
or
memory
register
that
is
accessible
via
the
internal
I/O
bus.
The
channel
values
range
from
0
to
15.
Channel
and
subchannel
addresses
are
listed
in
the
optional
Component-Level
Service
Manual.
Press
[SHIFT]
[GHz
/
dB(m)],
then
enter
a
numerical
value
between
0-15,
followed
by
any
terminator
key.
[SHIFT]
[MHz
/
sec]
(HP-IB:
SHMZ)
allows
the
I/O
subchannel
to
be
specified.
Press
[SHIFT]
[MHz
/
sec.],
then
enter
a
numerical
value
followed
by
any
terminator
key.
[SHIFT]
[kHz
/
msec]
(HP-IB:
SHKZ)
allows
a
numerical
value
to
be
written
to
the
address
defined
by
the
channel
and
subchannel.
The
appropriate
numerical
value
is
explained
in
the
introduction
of
the
optional
Component-Level
Service
Manual.
Press
[SHIFT]
[kHz
/
msec],
enter
a
numerical
value,
followed
by
any
terminator
key.
[SHIFT]
[Hz
/
AUTO]
(HP-IB:
SHHZ)
allows
a
numerical
value
to
be
read
from
the
address
defined
by
the
channel
and
subchannel.
Press
[SHIFT]
[Hz
/
AUTO],
and
the
numerical
data
will
appear
in
the
ENTRY
DISPLAY.
The
introduction
of
the
optional
Component-Level
Ser¬
vice
Manual
describes
the
interpretation
of
this
data.
Figure
3-10.
Entry
Keys
(2
of
2)
HP
8340B/41B
Operating
Information
3-27

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HP 8340b Specifications

General IconGeneral
BrandHP
Model8340b
CategoryInverter
LanguageEnglish

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