Furuno FSV-75 Operator's Manual page 8

TABLE OF CONTENTS
2.10.5 How to adjust the RX bandwidth (Auto Filter) .............................................. 2-19
2.10.6 Noise limiter ................................................................................................. 2-19
2.10.7 Reverberation............................................................................................... 2-20
2.10.8 Echo average ............................................................................................... 2-20
2.10.9 2nd echo rejection........................................................................................ 2-20
2.11 How to Adjust Beam Width ...................................................................................... 2-20
2.12 How to Track a School of Fish ................................................................................. 2-21
2.12.1 How to select the target lock mode .............................................................. 2-21
2.12.2 Fish mode .................................................................................................... 2-22
2.12.3 Target mark mode........................................................................................ 2-22
2.12.4 Target lock menu description ....................................................................... 2-23
2.13 Presentation Mode ................................................................................................... 2-24
2.13.1 Presentation mode description..................................................................... 2-24
2.13.2 How to select a presentation mode.............................................................. 2-24
2.14 How to Detect Schools of Fish Aurally ..................................................................... 2-25
2.14.1 How to turn the audio on/off ......................................................................... 2-25
2.14.2 How to select the audio sector ..................................................................... 2-26
2.14.3 How to set the audio bearing ....................................................................... 2-26
2.14.4 Adjusting the audio volume .......................................................................... 2-26
2.15 Fish Alarm ................................................................................................................ 2-27
2.15.1 How to activate/deactivate the fish alarm..................................................... 2-27
2.15.2 Alarm Level .................................................................................................. 2-28
2.16 How to Relocate a School of Fish ............................................................................ 2-28
2.17 How to Compare Concentration of School of Fish ................................................... 2-29
2.17.1 How to compare with the fish estimate mark ............................................... 2-29
2.17.2 How to compare with the circle cursor ......................................................... 2-30
2.18 How to Measure the Speed of a School of Fish....................................................... 2-31
2.18.1 How to measure the speed of a school of fish ............................................. 2-31
2.18.2 How to delete fish marks.............................................................................. 2-32
2.19 Event Mark, Own Ship Position Mark....................................................................... 2-33
2.19.1 How to enter an event mark ......................................................................... 2-33
2.19.2 How to enter an own ship position mark ...................................................... 2-34
2.19.3 How to erase an event mark, own ship position mark.................................. 2-34
2.20 Select Mark Window ................................................................................................ 2-35
2.21 Net Course Mark ...................................................................................................... 2-35
2.22 Net Data ...................................................................................................................2-36
2.23 Menu Items Descriptions.......................................................................................... 2-37
2.23.1 Display Setting menu ................................................................................... 2-37
2.23.2 Picture Setting menu.................................................................................... 2-39
2.24 How to Interpret the Slant Display............................................................................ 2-40
2.24.1 Bottom echoes ............................................................................................. 2-40
2.24.2 School of fish................................................................................................ 2-41
2.24.3 False echoes................................................................................................ 2-42
3. VERTICAL SLANT MODE .....................................................................................3-1
3.1 Basic Operating Procedure ........................................................................................ 3-1
3.2 How the Vertical Slant Mode Works........................................................................... 3-2
3.2.1 Overview ........................................................................................................ 3-2
3.2.2 Display overview ............................................................................................ 3-2
3.3 Display Range............................................................................................................ 3-3
3.4 How to Measure Range and Bearing to a Target....................................................... 3-4
3.5 How to Eliminate Weak Echoes ................................................................................. 3-5
3.5.1 How to set the TVG curve .............................................................................. 3-5
3.5.2 How to set near and far gain .......................................................................... 3-6
3.6 How to Adjust Strong and Weak Echoes ................................................................... 3-7
3.6.1 How to set AGC (Near, Far and Distance)..................................................... 3-7
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