User
Application
Errors
0001
{
0999
0053
Res BW -- CF ampl
Cause: The resolution bandwidth of one or more of the HP 70903A IF sections is out of
adjustment.
Cure: Perform the HP 70903A IF section Resolution Bandwidth Filter adjustments.
0060
RF attenuator
Cause: The RF attenuator of the HP 70600A preselector or the HP 70601A preselector is not
functioning correctly.
Cure: Check and replace the RF Attenuator in the HP 70600A preselector or HP 70601A
preselector.
0061
Cannot
test
70905/6B
Cause:
These
RF
sections can only be tested with an associated HP 70600A preselector or an
HP
70601A
preselector, as part of a preselected microwave spectrum analyzer system.
0062
Cal
input incorrect?
Cause: The front panel CALIBRATOR output of the HP 70900B local oscillator source is not
connected to the RF INPUT of the system being tested. (This is a prerequisite for running the
program.)
Cure: This error indicates that the marker reading of the signal was less than
0
60 dBm and the
21.4 MHz diagnostic detector indicated a low signal condition. Check that the calibrator signal
from the HP 70900B local oscillator source is connected to the RF Input of the RF section or
the preselector. If the calibrator is connected, check the RF signal path in the RF section for
excessive loss.
0063
ATTENUATOR Section
Cause: One or more of the RF attenuator sections in the HP 70600A preselector or the
HP 70601A preselector is not functioning correctly
.
Cure: Check and replace the RF Attenuator in the HP 70600A preselector or HP 70601A
preselector.
6-10 Error Messages
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