Teleflex TFX100ID Operation Manual page 8

USING THE 100ID SERIES
WHAT YOU SEE ON-SCREEN
On all screens the horizontal
line at the top of the display is
the "Zero" line. This repre-
sents the surface of the water.
The "Zero" line will always
have a gap which moves as
the screen updates. This gap
lets you know that the display
is updating even if the bottom
terrain remains the same or is
not visible on the selected
depth range. The farthest
right column of information is
the most recent information,
and it shows what is directly
under your boat.
At power-up, the 100ID
locates the bottom and
adjusts the depth range to a
setting most appropriate for that
depth. The bottom will be usually
shown about
the display. The Structure ID™
depiction of the bottom will vary in
appearance depending on the
bottom terrain. If the bottom is
very hard and smooth, the bottom
depiction will be narrow and
dense. If the bottom is mud or soft
sand, the bottom depiction will be
thick and less dense. This indicates
that much of the sonar signal is
absorbed by the soft bottom. If the
bottom is rugged and varying, such
as a rocky bottom, the depiction
will be textured and vary in density.
Structure, such as submerged trees
or brush, or other objects are
clearly displayed above the solid bottom return, in varying densities of
6
of the way down
Boat Speed
Water Temperature
Most current information
Hard Smooth Bottom
Figure B