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526
RBW
(300
527
RBW
<300
528
RBW
<300
529
RBW
<300
530
RBW
<300
531
RBW
X300
532
RBW
C300
533
RBW
<300
534
RBW
<300
535
RBW
<300
536
RBW
<300
537
RBW
<300
538
RBW
<300
539
RBW
x300
540
RBW
(300
550
ID CALOSC
551
ID LOGBD
552
LOG AMPL
553
LOG AMPL
554 LOG AMPL
555
LOG AMPL
556
LOG AMPL
557
LOG AMPL
558 LOG AMPL
ADC timeout during IF ADJUST of <300 Hz resolution bandwidth.
Step gain correction failed for <300 Hz resolution bandwidth. Check
narrow bandwidth SGO attenuator.
Calibration of dc level at ADC failed for <300 Hz resolution
bandwidth.
Invalid demodulated data for <300 Hz resolution bandwidth flatness
and IF down-converter. Demod data for calibration may be bad.
Adjustment of VCXO down-converter failed with resolution
bandwidths less than 300 Hz. Narrow bandwidth VCXO calibration
failed.
Flatness correction data for resolution bandwidths <300 Hz not
acceptable.
Absolute gain data for resolution bandwidths <300 Hz not acceptable.
ADC timeout adjusting resolution bandwidths less than 300 Hz.
Timeout during data sampling narrow bandwidth chunk.
Unable to do frequency count of CAL OSC using IF down-converter
when adjusting resolution bandwidths less than 300 Hz.
Unable to obtain adequate FM demod range to measure 500 Hz IF
filter with resolution bandwidths less than 300 Hz.
Unable to auto-range chirp signal while setting VCXO or doing
flatness calibration with resolution bandwidths less than 300 Hz.
Unable to auto-range CW CAL OSC signal to count VCXO signal
with resolution bandwidths less than 300 Hz.
Shape of 500 Hz IF filter appears too noisy to adjust VCXO
down-converter for resolution bandwidths less than 300 Hz.
Unable to auto-range the CW CAL OSC signal to pretune the VCXO
for resolution bandwidths less than 300 Hz.
Unable to find CW CAL OSC signal during VCXO pretune at
power-up with resolution bandwidths less than 300 Hz.
CAL Oscillator ID. Indicates incompatible hardware. Cal Osc not
expected
LOG Board ID. Indicates incompatible hardware. Log board not
expected.
Unable to adjust amplitude of log scale.
Unable to adjust amplitude of log scale.
Unable to adjust amplitude of log scale.
Unable to adjust amplitude of log scale.
Unable to adjust amplitude of log scale.
Unable to adjust amplitude of log scale.
Unable to adjust amplitude of log scale.
7-34 General Troubleshooting