HP ESA-L1500A User's And Calibration Manual page 60

Attenuator
Setting
15 dB
<15 dB
Exposing the analyzer to high levels of input power over a prolonged
CAUTION
time period can damage the circuitry.
Chapter 3
Attenuator Input Power Level
Coupling
Auto or Man 33 dBm 3 dB (nominal)
Man 13 dBm 7 dB (nominal)
When operating remotely, the status bit should be monitored for this
condition to avoid incorrect measurement results.
PARAMETER ERROR: _ _ _ The specified parameter is not
recognized by the spectrum analyzer. See the appropriate
programming command description to determine the correct
parameters. (U)
Password required Indicates that the service function cannot be
accessed without the password. (U)
Power-up selftest failed Boot ROM checksum: Indicates a
test of the bootrom produced a checksum error. (H)
Power-up selftest failed RAM error: Indicates a test of
RAM produced an error. (H)
Power-up selftest failed Checksum: Indicates a test of the
instrument ROM produced a checksum error. (H)
Require 1 signal > PEAK EXCURSION above PEAK
THRESHOLD Indicates that the N dB PTS routine cannot locate a
signal that is high enough to measure. The signal must be greater
than the peak excursion above the threshold level to measure. (U)
Require 3 signals > PEAK EXCURSION above PEAK
THRESHOLD Indicates that the % AM routine cannot locate three
signals that are high enough to measure. The signals must be
greater than the peak excursion above the threshold level to
measure. (U)
Require 4 signals > PEAK EXCURSION above PEAK
THRESHOLD Indicates that the TOI routine cannot locate four signals
that are high enough to measure. The signals must be greater than
the peak excursion above the threshold level to measure. (U)
Required Option Not Installed Indicates that the function
selected requires optional hardware that is not currently available.
(U)
RF LO Unlocked Indicates that the local oscillator within the
instrument's RF assembly is unlocked. (H)
Input Power Level
(50 )
76 dBmV 3 dBmV
68 dBmV 7 dBmV
Troubleshooting
Error Messages
(75 )
59