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Maestro Navigator 3.5.3.doc
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Sea Clutter Curve
Sea clutter curve adjusts the sensitivity of the sea clutter adjustment in the radar menu.
Sea clutter filtering starts at your vessel. As you increase the clutter percentage, the
area being filtered expands around your vessel. The sea clutter curve affects the rate at
which the filter area expands. The higher the curve setting, the faster the filter area will
expand when sea clutter is raised. The lower the curve setting, the slower the
expansion of the filter area. In other words, a higher curve setting makes the sea clutter
control more sensitive.
Factory Default
Pressing the
factory default
button will return ALL radar settings (both in the radar menu
and the radar setup menu) to their original Faria default values.
Heading Adjustment
On many vessels, the radar scanner might be slightly offset from the lubber line - usually
only by a few degrees. If targets that are dead ahead don’t appear directly in front of the
vessel on the radar display, you can apply an offset, or heading adjustment, here to
compensate for the difference. For example, if your radar scanner points at 358º, apply
an offset of 2º. If you aren’t sure how much of an adjustment is needed, try adjusting by
one degree at a time.
If dead-ahead targets appear slightly to starboard, you should apply a positive offset. If
these targets appear to the port side of the vessel icon, apply a negative offset.
Transmit Trigger Delay
I
ncrease the delay in order to minimize interference (shown as a colored ring around the
vessel) without distorting the radar images. To determine a good setting, bring your
vessel near a straight-edged target, like a bulkhead or a pier. If the radar target curves
in towards the vessel instead of appearing as a straight line, the trigger delay is set too
high. Lower it just enough to minimize the ring around the vessel, without distorting
straight targets. (The ring cannot be removed entirely, and will always be visible,
especially at short ranges.)
To adjust transmit trigger delay, press the sideways arrow in the radar menu to reach the
radar setup menu button. From the radar setup menu, select
Transmit Trigger Delay
.
Radar Tuning
Radar tuning tunes the radar receiver to match the magnetron frequency. Radar tuning
is a long-term adjustment. You may need to make periodic adjustments over time, as
magnetron frequencies can drift as the radar unit ages.
1.
First, set the radar to a low range.
2.
Adjust the gain just enough to show radar targets.
3.
Finally, adjust radar tuning to maximize the target returns.
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