Simrad CS90 Operator's Manual page 6

Simrad CS90
Transmitting with fixed-time intervals ...................................................................52
Adjusting the output power to match varying conditions ......................................53
Selecting the best operating frequency...................................................................54
Controlling the gain and range settings ...........................................................................56
Adjusting the gain (echo sensitivity)......................................................................56
Adjusting the TVG (Time Variable Gain) setting ..................................................58
Adjusting the sonar range.......................................................................................58
Adjusting the intensity of the echo presentations...................................................60
Changing the tilt .....................................................................................................60
Adjusting the bearing .............................................................................................62
Using the markers and tracking features..........................................................................64
Starting a position track..........................................................................................64
Starting a target track..............................................................................................65
Placing a new marker .............................................................................................66
Deleting a marker ...................................................................................................67
Measuring the size of a school relative to the purse seine .....................................68
Using visual aids during the purse seine catch phase.............................................68
Choosing the fishing gear in use.............................................................................70
Changing the fishing gear properties to match your own equipment.....................71
Improving the recognition of fish and schools using receiver filters ...............................72
About the receiver filter sequence in the CS90 ......................................................72
Reducing noise and reverberation with the AGC (Automatic Gain Control)
function ..............................................................................................................73
Reducing propeller noise and interference with the Noise Filter ...........................74
Reducing bottom and surface reverberation with the RCG (Reverberation
Controlled Gain) function..................................................................................75
Reducing noise and false echoes with the Ping-Ping Filter ...................................77
Reducing noise and reverberation with the AGC (Automatic Gain Control)
function ..............................................................................................................78
Adjusting the intensity of the echo presentations...................................................79
Recording and replaying echo data..................................................................................80
Defining the file and folder settings for data recording..........................................80
Recording echo data ...............................................................................................81
Selecting Replay mode ...........................................................................................82
Choosing which echo data file(s) to replay ............................................................83
Accessing the echo data files to delete, move or copy them ..................................84
Setting up presentation modes and views ........................................................................86
Moving a view to another display ..........................................................................86
Rearranging the layout of the CS90 presentation...................................................87
Restoring the locations and sizes of the views .......................................................88
Defining settings related to user preferences and individual customizing.......................89
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