Raymarine Marine GPS System User Manual page 123

RayTech Navigator User's Guide
Using Sonar With Navigator
Data from your hsb
(repeated) in a separate Navigator window. The hsb
Fishfinders use sound waves (sonar) to find fish and show the bottom
of a lake or sea. The transducer sends high-frequency sound waves
down into the water; these sound waves strike fish, the bottom, or
other objects in the water and return as echoes. The Fishfinder
interprets these echoes to present an image of the fish and bottom.
The strength of echoes is indicated by different colors. You can use
this information to determine the size of fish and the bottom structure.
Other objects in the water, such as debris and air bubbles, also return
echoes; these echoes are generally weaker than the fish or bottom
echoes and produce background noise or clutter on the display.
Navigator provides controls to reduce the background noise and to
adjust the way in which echoes of different strengths are displayed and
let you select the background color and remove the display colors for
weaker echoes. There is also a White Line feature which helps to
distinguish between the bottom and fish (or other items such as weed)
that are close to the bottom.
Connection is made from the hsb
to a PCMCIA card in your PC.
To display sonar data in a separate Navigator window:
5-32
2
Series Fishfinder can transferred and displayed
1. Make sure the Fishfinder is operational and correctly
connected to the RayTech Navigator PC.
2. Power-on the Fishfinder unit.
3. Click
File/Open
4. The sonar window opens, displaying Fishfinder data over hsb
2
output via a special cable that inputs
, then double-click the
2
Series
icon.
Sonar
2
.