EW9102 Sonobuoys
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  Recorded on traces 181 or 182.
  We do not have a record of the trace number or the exact shot 
  range for each sonobuoy.  This can be determined by plotting each trace.
  Sample Interval 4000 microseconds
  Record length 8.748 seconds sonobuoys  1-12
               18.748 seconds sonobuoys 13-20, 34-39
               16.000 seconds sonobuoys 21-33

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