Sitex SP38 Installation and Operation
Basic Operation
Document PN
29010101
V2r0
-
100
-
Correction set to XTE – Cross-Track Error Steering
Cross-track error is the perpendicular distance from the track to the vessel’s position.
When using Cross-Track Error Steering, the autopilot initially steers on its present heading,
and monitors the Cross-Track Error reported by the Navigation System. The autopilot
changes the heading so as to minimize the cross-track error.
If the initial cross-track error is large, the autopilot will steer a course almost perpendicular to
the original track, so as to get back on the track as quickly as possible.
Figure 50 – Steering with Correction set to XTE
Test this out so as to be familiar with it by performing the following steps:
1)
Change “Correction” in the Nav menu to “XTE”
2)
Make sure the Navigation System is turned on and that a waypoint is programmed in.
3)
Switch the autopilot to
STANDBY
mode and manually steer the vessel onto the
track.
4)
Place the
SP38
into NAV mode by pressing and holding the NAV button until the unit
beeps and the letter “N” appears in the upper left portion of the display.
5)
Observe the vessel’s heading and the cross-track error. The autopilot should be
steering so as to minimize cross-track error.
The course steered when Correction is set to “XTE” may not be the most efficient in terms of
overall distance traveled.
NOTE
:
If the vessel seems to be continually falling off course away from the track, change
the “XTE Sense” (cross-track error sense) in the Nav menu from “Norm” (normal) to “Rev”
(reverse) and observe any performance differences.
Summary of Contents for SP38 Autopilot
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Page 14: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 13 ...
Page 15: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 14 Introduction ...
Page 16: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 15 ...
Page 26: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 25 ...
Page 35: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 34 Installation ...
Page 36: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 35 ...
Page 74: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 73 ...
Page 108: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 107 ...
Page 109: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 108 Advanced Operations ...
Page 110: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 109 ...
Page 123: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 122 Care and Maintenance ...
Page 124: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 123 ...
Page 127: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 126 Appendices ...
Page 128: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 127 ...
Page 156: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 155 Warranty ...
Page 157: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 156 User Notes and Settings ...
Page 158: ...Sitex SP38 Installation and Operation Document PN 29010101 V2r0 157 ...