APPENDIX
A7
smallest amount of input attenuation that prevents the overload condition, then start the recording
session again. Once the overload condition is corrected, the false spurs will also disappear.
The screenshot above shows a previously captured Trace Record Waterfall being reviewed. A very
strong signal which was present while the Trace Record Waterfall was being captured caused an
overload condition to occur. The red bar to the left of the waterfall image indicates the traces which
contain an overload condition. If the overload condition is encountered while reviewing a Trace Record
Waterfall, any trace with the overload condition could contain false spurs. If it is possible to repeat the
record session with input attenuation applied, then this should be done.
Overload Indicators
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