Operation
Model
8642A/B
Operating
Messages
(cont'd)
SP4
PREVENTS
AM
.E84
4084
AM is
not
possible
when
Special
Function
4 (ALC
Off)
is selected. Select Disable ALC
Off
(Special
Function
204)
before
setting
AM.
HP-IB: Send
SP204
before
AM.
SP4
PREVENTS
PULSE
.E85
4085
Pulse
modulation
is
not
possible
when
Special
Function
4 (ALC
Off)
is
selected. Select Disable
ALe
Off
(Special
Function
204)
before
selecting pulse
modulation.
HP-IE: Send
SP204
before
PL.
INVALID
SPCL
FUNCTION
.E86
4086
An
invalid
special
function
number
was selected. Select a special
function
number
that
exists. (Refer
to
Special
Functions,
page 3
-171.)
SOME SPCLS
STAYED
ON
.E87
4087
Some special
functions
remained
selected
after
you
selected Special
Function
0
or
100
because
certain
special
functions
were coupled
to
other
instrument
settings. (This message will only
occur
if
more
than
one special
function
remains
on. Special
Function
0
or
100
not
turning
off
just
one
special
function
will
display a message describing
the
reason
that
one speCIal
function
was
not
turned
off.) View
the
special
functions
to
see
which
are
still on by selecting SPCL ( (
SHIFT
J 0 ) (HP-IB: Use SP
and
read
the
display;
refer
to
the
Output
Display
information
discussion
that
begins
on
page 3-21). The special
functions
might
remain
selected because
of
a sequence dependency problem. Possibly
refer
to
the
Sequence Dependency discussion
that
begins on page
3-12
in
the
HP-IB
portion
of
this Section
III.
0.9
HZ
LIMIT
REACHED
.E88
4088
A
maximum
RF
frequency
change
of
0.9
Hz
can
be
accumulated
using Special
Function
240
(Decrement
Frequency
0.1
Hz) or Special
Function
241
(Increment
Frequency
0.1
Hz).
To
get
another
0.1
Hz
step,
directly
set
the
RF
frequency
to
1
Hz
resolution.
SA
VE/RECALL
MAX
=
50
.E92
4092
The
maximum
recall register
number
is
50. Select register
numbers
only
between
00
and
50 .
RECALL
NOT
DEFINED
.
E93
4093
No
instrument
settings
are
saved
in
this register.
The
register could
have
been cleared
with
Special
Function
251 (Clear Recall Registers)
or
because
of
a
hardware
error. This
error
E93
occurs
simultaneously
with
hardware
error
HI
O.
Refer
to
"Recalling
an
Undefined
Register" on page
3-162
for
more
information.
SEQ
NOT
SET...4
DIGITS
.E94
4094
Sequence was
not
set, 4 digits are required.
Try
the
sequence setting again using
two
digits for
both
the
start
and
stop sequence register numbers.
ADRS
VALID
0-30
ONLY
.E95
4095
HP-lB
addresses
are
valid only
between
0
and
30. Select
an
HP-IB
address
between
00
and
3D,
or select
31
for
Listen
Only
capability.
MASK
VALID
ONLY
0-255
.E96
4096
The
RQS mask
is
valid only
between
decimal 0
and
255. Set
the
RQS mask
between
those values.
3-192
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