Maintenance
6-12 2715 Spectrum Analyzer Service Manual
Table6 -2: Cal Debug Messages and Meanings (Cont.)
Message Meaning
“ERROR in VERTICAL OFFSET:Cannot span down on calibrator”Could not keep cal ibrator signal on screen when spanning down to
1 MHz span, 5 MHz filter.
“ERROR in VERTICAL OFFSET:Cannot set calibrator to f ull
screen, scale X”,where X is one of:
1dB/div
5dB/div
10 dB/div
LIN
The signal could not be set to full screen with the RF attenuators,
VR gain steps, and VR fine gain in the specified scale factor.
“ERROR in VERTICAL OFFSET:Out of range, scale X”, where X
is one of:
1dB/div
5dB/div
10 dB/div
LIN
The calculated result for this test was outside reasonable limits.
“ERROR in PREAMP GAIN: Cannot span down on calibrator”On the second attempt, the calibrator could not be centered
sufficiently to go to zero span without losing the signal.
“ERROR in PREAMP GAIN: Cannot calculate lin mode sensitivity”Lin mode sensi tivity figures were outside reasonable limits.
“ERROR in PREAMP GAIN: Cannot bring signal on with
attenuators”
Once the preamp was turned on, the signal could not be brought
down below full screen with the RF attenuators.
“ERROR in PREAMP GAIN: Result out of range”The calculated result for this test was outside reasonable limits.
“ERROR in LOGGING ERROR: Lost signal while spanning down”On the second attempt, the cali bratorcoul d not be centered
sufficiently to go to zero span without losing the signal.
“ERROR in LOGGING ERROR: Cannot set signal to full
screen (1)”
Initially, the calibrator signal could not be set to full screen with the
RF attenuators, VR gain steps, or VR fine gain DAC.
“ERROR in LOGGING ERROR: Cannot set signal to full
screen (2)”
The calibrator could not be set to full screen for one of the three
log mode scale factors.
“ERROR in LOGGING ERROR: Out of range”The calculated result for this test was outside reasonable limits.
“ERROR in SENSITIVITY: Result out of range (1)”Thepeak of the unf iltered noise floor minus the peak of the filtered
noise floor was outside reasonable limits.
“ERROR in SENSITIVITY: Result out of range (2)”Thepeak sensiti vity with preamp on was out of range.
“ERROR in SENSITIVITY: Result out of range (3)”Thepeak sensiti vity with preamp off was out of range.