Real Time Sonar Window - Teleflex TFX160 Operation Manual

A depth range scale appears close to the right side of the LCD display. This
scale indicates the distance from the surface of the water to a depth range
sufficient to show the bottom. For example, in 18 feet of water a 20 foot
depth range is selected. The depth range scale can be controlled
automatically or manually depending on the mode of operation. In
automatic and bottom lock mode, the 160 selects the depth range. In
manual mode the depth range is selected by the user.
The sonar returns received by the 160 are displayed along the depth range
scale in a Real Time Sonar (RTS) Window and Chart Window. The RTS
Window displays new sonar information within the transducer cone in an
expanded easy to see format; the Chart Window logs old RTS Window
information to show a contour view of the bottom and structure.

Real Time Sonar Window

The Real Time Sonar (RTS) window shows
instantaneous sonar returns from the
bottom, structure and fish that are within the
transducer beam. The RTS window updates
with new sonar information much more
quickly than the chart window - up to 20
times per second in shallow water. The RTS
window responds to quickly changing depths
similar to a flasher. Interpreting the RTS
information requires some skill; however
comparing the RTS presentation with the
information on the chart window makes it
easy to understand.
The RTS window plots the depth and
intensity of a sonar return. Sonar intensity is indicated by the length of the
horizontal lines, while depth is indicated by the vertical placement of the
lines next to the depth range scale. The intensity of the sonar return is
divided into 4 levels of grayscale. The most intense returns are shown in
black; less intense sonar returns are shown in progressively lighter shades
of gray.
The combination of the length of the lines and the gray scale level helps to
identify the bottom composition and structure. The bottom is the largest
USING THE 160
CONTROL FUNCTIONS
Intense
returns
Less
intense
returns
Structure
Bottom
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