Triton Isis - Manual (Page 210)

June 2004 Isis® Sonar User's Manual, Volume1 196
9.8.5.2 Status
The Status box displays the current status of the BAC and GAC routine as
well as the minimum and maximum altitudes that have been encountered
during collection of statistics. After you choose Do it, the status will change
during the automatic application of BAC.
If a No Altitude message is displayed, Isis cannot find an altitude to use for
creating a compensation. To correct this:
1. Turn on Isis bottom-tracking in the Bottom Track and TVG dialog box.
2. Open the dialog box for the selected waterfall window and turn on slant
range correction. Statistics will then be collected.
Watch Isis bottom-tracking carefully in a voltage window when
collecting statistics.
9.9 ASCII Report
Through the ASCII Report function (Tools→ASCII Report, Figure 9-18), you can
have Isis keep a very detailed log about data underlying your imagery, whether
that imagery is being recorded or played back.
Chapter 9: Using the Tools Menu