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Ope rat ion
Model 8902A
Errors
30
31
32
33
34
35
Error 96
Error 96 corresponds to a display of two dashes
(- -).
Error 96
can
occur when no signal is applied
or when Error 03 is disabled and the instrument is manually
tuned
where no signal is found. Error
96
(- -)
turns off MODULATION OUTPUT/AUDIO INPUT.
Message
Corrective
Action
Manual input attenuation or gain selection. Change
RF
input attenuation and gain.
Requires new power reference.
Calibrate RF Power before attempting calibration of
Tuned
RF
Level.
Calibration not possible.
Move input Signal level into avalid calibration range.
Power sensor reference error.
Maintain consistency in frequency and level at SENSOR
during calibration.
Signal lost during calibration.
Maintain frequency stability at RF INPUT during
calibration.
Level error during calibration.
Maintain signal stability at RF INPUT during calibration.
Errors
20
21
22
23
24
25
26
Entry
Err
Message
Entered value out of range.
Invalid key sequence.
Invalid Special Function prefix.
Invalid Special Function suffix.
Invalid HP-IB code.
Special Functions selected not compatible with
selected measurement.
End of RF POWER calibration factor table
reached.
B
~~
~
Corrective Action
Re-enter new value.
Check for compatibility of functions selected
Re-enter correct Special Function Code.
Re-enter correct Special Function Code.
Re-enter correct HP-IB code.
Press AUTOMATIC OPERATION
Check number of entries.
Error 20
When this error occurs during single-sideband noise measurements, the bandwidth entry was out-
of-range. Usually it is unnecessary to enter a bandwidth for noise measurements. This bandwidth is
established at the factory.
Entry Errors
Errors
I
Messaae
I
Corrective Action
I
40-89
I
Serivce-related errors.
Refer to service section of HP 8902A instrument
I
manual.
Errors 40 through 89
Service errors are normally disabled.
rev.24OCT86
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