Simrad CE33 ChartSounder Manual page 149

CE33 Glossary of terms Appendix A-3
Rhumbline – is the straight line to a waypoint on a chart.
Route name – each route can be given a name for easy identification.
SDGPS - Satellite Differential Global Positioning System - will provide posi-
tion corrections from received satellite signals.
Speed – Speed Over Ground, measured in knots, kilometers, and miles.
Starboard side – right (green).
TFT – Thin-Film Transistor (Active matrix) display.
UTC – Universal Time Coordinates, which is equal to standard time in
London (GMT). UTC is not affected by the local summertime adjustments.
Velocity – speed towards approaching waypoint.
Waypoint name – a name can be added to each waypoint for easy identifica-
tion.
WPplot – instant storage of actual position as a waypoint.
XTE – Cross-Track-Error (-Distance), measured magnitude of the position
error perpendicular to the intended track line.
Echosounder section:
Alarms – can be set to sound a "beep" if the echosounder detects a target
above (shallower than) a minimum alarm depth or below (deeper than) a maxi-
mum alarm depth. The CE33 allows you to set the alarm depths and to enable
or disable both the minimum and maximum depth alarms.
A-scope – a method of displaying the echosounder information. In A-Scope
mode, the echoes are displayed in a "bar-graph" format, with stronger echoes
displayed not only in the color representing their target strength, but also in a
width representing their target strength.
Color threshold – the color threshold function allows the "weaker" targets
and noise which may be shown on the display screen to be eliminated from
the display. These targets are usually shown in the weaker target colors such
as blues and greens. The Color threshold allows you to choose not to display
the blues, or the blues and greens, etc. Doing this will leave only the stronger