Triton Isis - Manual (Page 145)

June 2004 Isis® Sonar User's Manual, Volume1 131
If you’re in Record mode and you select Manual speed in
the Towfish Speed dialog box, this manual speed will
immediately override any speed settings you may have
specified elsewhere, such as in your navigation
template.
Whichever kind of speed you select here — automatic or manual — will be
displayed in the Telemetry box of the Parameter Status window.
8.6 Heading
The Heading dialog box (Figure 8-7) gives you a choice between two ways of
controlling the heading of your towfish:
Automatic:
The towfish is guided by navigation or serial information coming
into Isis.
Manual: The towfish is solely guided by operator-specified values.
Figure 8-7: Heading dialog box
The default is Automatic. If the towfish is not being guided by navigation or
serial information coming into Isis, you will want to use the Manual override and
specify a heading to keep the towfish on course.
8.7 Layback
Layback is the horizontal distance, in meters, from the towfish to the ship's
reference point (usually the ship’s antenna).
Chapter 8: Using the View Menu