Model
8642A/B
Operation
Operating
Messages
(cont'd)
3)
refer
to
the
Sequence Dependency discussion
that
begins on page
3-12
in
the
HP-IB
portion
of
this
Section III.
SP9
LIMITS
MAX
AMPTD
.E76
4076
Special
Function
9
(Attenuator
Range Hold) limits
the
maXImum
amplitude
that
can
be selected. To
resolve
this
problem,
either
1) select
Attenuator
Range
Hold
Off
(Special
Function
209),
or
2) select
an
amplitude
within
the
held
amplitude
range selected
(refer
to
Table
3-15,
page 3--75,
or
Figure
3-9,
page
3-76),
or
3)
refer
to
the
Sequence Dependency discussion
that
begins on page
3-12
in
the
HP-IB
portion
of
this
Section
III.
AMPTD+SP9
LIMIT
MAX.AM
_E77
4077
The
amplitude
selected
with
Speci&l
Function
9
(Attenuator
Range Hold) limits
the
maximum
value
of
AM
that
can
be selected. To resolve
this
problem,
either
1)
select
Attenuator
Range Hold
Off
(Special
Function
209),
or
2)
reduce
the
amplitude
setting
to
get
the
desired AM setting, or
3)
select
an
AM
setting
allowed
with
the
held range
and
amplitude
setting
selected
(refer
to
Table
3-15,
page
3-75,
or
Figure
3-9,
page 3-76), or
4)
refer
to
the
Sequence Dependency discussion
that
begins on page
3-12
in
the
HP-IB
portion
of
this
Section
III.
SP9
PREVENTS
PULSE
.E78
4078
Pulse
modulation
is
not
possible
when
Special
Function
9
(Attenuator
Range
Hold) IS selected. Select
Attenuator
Range
Hold
Off
(Special
Function
209) before selecting pulse
modulation
.
PULSE
PREVENTS
SP9
.
E79
4079
Special
Function
9
(Attenuator
Range Hold)
is
not
possible
when
pulse
modulation
is selected.
Turn
off
pulse
modulation
(HP-IB: PLOF)
and
set
output
amplitude
O-lP-IB: AP)
to
the
desired level before
selecting
attenuator
range
hold (HP-IB: SP9) .
SP9
PREVENTS
SP4
.
E80
4080
Special
Function
4
(ALe
Off)
is
not
possible
when
Special
Function
9
(Attenuator
Range Hold)
is
selected.
Select
Attenuator
Range
Hold
Off
(Special
Function
209) before selecting
ALe
off.
HP-IB: Send SP209 before SP4.
SP4
PREVENTS
SP9
.E81
4081
Special
Function
9
(Attenuator
Range Hold) is not possible
when
Special
Function
4 (ALC Off)
is
selected.
Disable
ALe
Off
(Special
Function
204)
before selecting
attenuator
range
hold.
HP-IB: Send
SP204
before SP9.
AM
PREVENTS
SP4
.E82
4082
Special
Function
4
(ALe
Off)
is
not
possible
when
AM
is
selected.
Turn
off
AM
before
selecting
ALe
off.
HP-IB: Send AMOF before SP4.
PULSE
PREVENTS
SP4
.E83
4083
Special
Function
4
(ALe
Off) is not possible
when
pulse
modulation
IS selected.
Turn
off
pulse
modulation
before selecting ALC off.
HP-IB: Send PLOF before SP4.
3-191
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