HP 8901B Operation And Calibration Manual page 338

Operation Model
8901B
Error Message
Code
20 Entered value out of range.
Error 12
Error 12 is enabled by Special finction 15.
Corrective Action
Re-enter new value.
Error 13
21
22
23
Error 13 usually only occurs when the power sensor is disconnected during an
F W
power measurement.
Invalid key sequence.
Invalid Special Function prefix.
Invalid Special Function suffix.
Error 14
Invalid HP-IB code.
End of
RF Power calibration factor table
reached
Error 14 will not occur when using a sensor module (such as the H P 11722A) or a power sensor with
an
FtF
switch controlled by voltages accessed from the rear panel. (Refer
to Remote Control RF Switch
on page 3-109.)
Re-enter correct HP-18 code.
Check number
of
entries.
Error 15
Refer to R F Power on page 3-74 for entry and edit information concerning calibration factors.
Error 17
Several conditions can cause this error:
0
IF
level too high for available range. Either Range Hold
was
selected or one of the measurement
ranges (Special hnctions 1 through 10)
w a s
user selected. Select AUTOMATIC OPERATION
and try the measurement again.
0
IF level too low when making a reference measurement. The reference
is below 1.25V. Increase
the source level to between 1.25V and 2.5V.
0
Either a ratio measurement was attempted with an inadequate reference measurement or the
reference was not measured before the ratio measurement was attempted. Take a reference
measurement with the reference level between 1.25V and 2.5V.
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.
Check for compatibility of functions selected.
Re-enter correct Special Function Code.
Re-enter correct Special function Code.
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.
3-250 Error Message Summary