Help
Messages
8-3
Table
B-1.
Error
Numbers
and
Description Listings
for
the
HP
8904A’s
Help Messages.
(3
of
4)
47
48
50
51
52
53
54
55
56
57
58
59
101
102
103
104
105
YO6
107
108
A
Data Terminator was received via
HP-IB
when none was expected. (Refer to Error
46
for an
expanation
of
data terminators.)
A
combination of errors
41
through
47
probably exists. (Confirm that at least one
of
these errors exists
and correct it. Enter the data again and read any error messages that result; an error number other thar
48
should be displayed. The second error message should help to further isolate the error until it is
eliminated.)
-Signal Sequence Mode Errors-
Time value entered
is
out
of
range.
On and
Off
Time values cannot both be zero.
Amplitude value entered is out of range.
Frequency value entered is out of range.
Tone Number entered is out of range. [Only tone numbers
0-F
(Hexadecimal) are valid.]
Sequence Index value entered is out of range. (Valid Range is
1-250.)
Sequence End value entered is out of range. (Valid Range is
1-250.)
The number entered is not valid in the Sequence Base selected. (Either the Binary, Octal, or
Hexadecimal base numbering system is used to specify the Sequence Index and Sequence End. For
example, you may not use the character
‘9’
when you have previously specified the Octal base, since
this number does not exist in that numbering system.)
Command not permitted in this mode.
Command not available in present window.
-Destination Control Errors-
Channel
A
cannot be used as a source for AM, FM, DSB, Phase or Pulse modulation. (Channel
A
can
be modulated, but
it
cannot be used as a modulation source.)
Channel
A
has a Waveform of dc and cannot be modulated.
A
channel which has a Waveform of dc cannot be used as a modulation source.
An operation was directed to an output board which does not exist.
AM and
DSB
are mutually exclusive modulations and one is already active.
An attempt was made to use a second summer. For this configuration of two summers, only channels
A+B with channels C+D is permitted.
The Hop Ram
is
presently enabled as this modulation source.
The Frequency set value selected is greater than the permitted maximum for pulse modulation.
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