Very
small fish probably
will
not arch at all. Medium sized fish
will
show
a partial arch, or a shape similar to an arch if they're in deep water.
Large
fish will arch, but turn the
sensitivity up in deeper
water to see
the arch. Because of water
conditions, such as heavy
surface clutter,
thermoclines, etc., the sensitivity sometimes cannot be increased
enough to get fish arches.
One of the best ways to get fish arches is to expand or "zoom" a 0 PS
segment
of the water. For example, from 45 to 60 feet. The smaller
the
segment, the better the screen resolution will be. The easiest way
to do this on the UltraNavGPS is with the Bottom Track feature. Use
the 2x or 4x Bottom Track mode to
expand the
echoes, making it easier
to see detail. For the best results, turn the sensitivity up as high as
possible without
getting too much noise on the screen. In medium to
deep water, this method should work to
display
fish arches.
If you see fish
signals when the unit is in the manual mode, but don't
get fish symbols when the Fish l.D. feature is on, try increasing the
sensitivity.
WARNING!
USE THIS GPS RECEIVER ONLY AS AN AID TO NAVIGATION. A
CAREFUL NAVIGATOR NEVER RELIES ON ONLY ONE METHOD TO
OBTAIN POSITION INFORMATION.
CAUTION
This GPS receiver, (like all GPS navigation equipment) will show the
shortest,
most direct path
to a
waypoint. It
provides navigation data to the
waypoint regardless of obstructions. Therefore, the
prudent navigator will
not
only
take advantage of all available navigation tools when
travelling to
a waypoint,
but will also visually check to make certain a
clear, safe
path
to
the
waypoint
is
always
available.
NOTICE!
As of this writing,
the
Department of Defense (DOD) has not declared the
GPS
navigation system
as
operational. The
system
is still in atesting phase.
Satellites can beturned off
oraccuracycan bedegraded
atwill
bythe system
operators. Remember that the UItraNavGPS, or
any GPS receiver is
only
as accurate as the
system
it's
using.
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