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Vertical (Probe) and Horizontal (Sea
Scout) Scan mode.
It's easy to change the Twinscope's scanning mode
back and forth between horizontal and vertical.
When the Twinscope is in the vertical scanning
mode (scanning the beam from directly ahead to the
bottom below) it offers all of the features of the
popular Interphase Probe sonar. When the
horizontal (Sea Scout) scanning mode is selected,
the Twinscope will act just like our popular Sea
Scout sonar. All of the Twinscope's advanced
features including; full screen downlooking view,
split screen data and track plot views, and
simultaneous split screen forward and downlooking
view, are available in both the vertical or horizontal
forward scan mode.
The horizontal (Sea Scout) mode is often used in
deeper water to hunt for suspended fish, schools of
bait and other submerged targets. The side-to-side
sweeping action of the scanning beam is ideal to
locate forward targets up to 45 degrees on either side
of the bow.
In the horizontal scanning mode, the display will
show the distance and bearing (in degrees) from your
boat's bow. Once targets are located, the vessel can
be steered directly towards the area of interest.
By switching to the vertical (Probe) scanning mode,
the display can show the depth of suspended targets
and give a view of changing bottom depths and
conditions in front of your boat.
In the vertical scan (Probe) mode, the display can
also show the bottom forward of the boat as shown
at right. Notice that the bottom is slowly falling
away indicating deeper depths ahead.
Horizontal (Sea Scout) Mode.
Horizontal (Sea Scout) Mode.
Vertical (Probe) Mode.
25
Note suspended
object
approximately 75
feet ahead, 30
degrees to left of
vessel's bow.
Vessel has been
steered toward
suspended target
which now appears
directly ahead.
Twinscope switched
to Vertical Scan
(Probe) mode. Note
that suspended
target is at a depth
of approx.15 feet.
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