Simrad CA34, Manual

Page: 16 / 212

Chapter 1-10 CA34/44/54 Introduction and safety summary
1.3.4 Echosounder / Fishfinder
ECHO
Press the [ECHO] key to call up an echosounder display. Press
again to toggle between the echo shortcut series
- see display examples in section 1.3.1.
Select and adjust echosounder range
Press one of the numeric keys 1 - 9 to select a fixed range. Key 9 will select
the largest range and key 1 the smallest. Use the +/- keys to adjust range in
smaller steps. Key 0 will select Auto Range.
A-scope - Press [ENT], [2] to toggle A-scope on/off. The strength of the
actual echo is indicated by both width and color intensity.
Change frequency
- Press [ENT], [1] to toggle between e.g. 50 and 200 kHz.
Gain
- Adjust gain with cursor left/right to just below the point where you
begin to see speckles of ‘noise’ on the screen.
Bottom lock display*
- Press [ENT], [4] Bottom lock is a combination of
standard echo display and extended area around the bottom.
Zoom display
* - Press [ENT], [5] The expansion is a combination of stand-
ard echo display and extended area around the VRM - Variable Range Marker.
Shift display * - Press [ENT], [6] when operating in deep waters.
Select the range for an expansion window. The expansion window can auto-
matically follow a changing bottom or be set manually by the +/- keys.
*Return to standard echosounder display by pressing [ENT], [3].
Echo setup
(presentation) - Press [ADJ] from echo display to access the
setup display for either 38 (CA44/54), 50 or 200 kHz. Press [ENT] to confirm
changes, or leave the setup without having made any changes by pressing
[MENU].
Echosounder setup
- Press [MENU], [7], [ECHO] when you need to make
any general settings, selecting a transducer or selecting demo mode etc.
Transmit power off
- Press [ENT], [ECHO] to stop transmission in order to
observe noise picked up by the transducer or to reduce power consumption.