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spatid variability and to check system performance. These seetor extents are noted
in Appendix C.
As a data g dty check the radar aras continually monitored on a per data ruo
basis. Plots of the retuned radar signal were regularly produced to inspect range
periormance. On-line spectral pro=-ing was also performed to determine the quality
of the Bragg components. Also, ss they beearneeam available, most radial surface current
maps m e inspected for obvious errors.
Field personnel were stationed at the r& site for the duration of the experiment
so that hardware problems muid be quickly addressed.
3.3.3 System Performance
There arar one hardware failure noted during the experimental period. An inspenion
of the wtw on the morning of the 1 5 of ~ November ~ (Julian day 320) revealed that
2 of the 10 beamforming units were dektive. The defective o ts were immediately
replaced. It was Later determined these units were causing problems on November
llth (Julian day 316), as revealed by a degradation in the data quality tom that
day to the day of unit replacement. Other data I-, though very minimal, were
mainly due to minor software pmblems that occurred during the initial stage. d the
prow. (See Appendix A, for the experimental chronology).
The maximum rsdar range was obswed to be approximately 300 kilometerr, with
a minimum range of apprmdmately 200 Irm. This was sufficient for an experiment of
thk nature since the drifter positions never exceeded 2W km.