MAQ SONAR 22KHz, Technical And Installation Manual

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WT
Wake Trail Display
This feature allows the operator to decide a number of parameters:
• Wake Trail presence.
• Wake Trail/Range Ring color.
• Minimum speed from the navigation equipment for use by the system.
Selections:
Woff
Goff
The Navigation Mode setting determines the characteristics of the wake trail:
Bow Up Display
North Up Display
The information provided by GPS-based navigation equipment can become unreliable at
very low speeds (for example when the vessel is coming around on a
slow turn).
Provision is made to allow the operator to preset a minimum speed to be acknowledged
by the system.
W00 → W25
G00 → G25
Below this preset speed the system will:
• Ignore any Event Marker selections.
• Disable the wake trail.
• Use the Vessel Speed (VS) selection preset on the Setup Panel for filtering and
the speed indication on the sonar display.
67
White range rings - wake trail disabled.
Gray range rings - wake trail disabled.
Wake trail is solid white or gray.
Wake trail is aged to darken over me from either white
or gray.
White wake trail and range rings. Minimum speed 0
→
2.5
knots.
Gray wake trail and range rings. Minimum speed 0
→
2.5 knots.