Furuno 1823C manual Vii, Customizing Your Unit

4.10 Picture Advance Speed	4-17
4.10.1 Advancement independent of ship’s speed	4-17
4.10.2 Advancement synchronized with ship’s speed	4-18
4.11 Display Colors	4-19
4.12 Alarms	4-20
4.12.1 Audio alarm on/off	4-20
4.12.2 Bottom alarm	4-21
4.12.3 Fish alarm	4-21
4.12.4 Fish alarm (B/L)	4-22
4.12.5 Water temperature alarm	4-23
4.12.6 When an alarm setting is violated	4-24
4.13 Water Temperature Graph	4-25
4.14 Changing Pulse Repetition Rate	4-26
4.15Interpreting the Sounder Display	4-27
4.15.1 Zero line	4-27
4.15.2 Bottom echo	4-27
4.15.3 Fish school echoes	4-28
4.15.4 Surface noise/Aeration	4-28

5. CUSTOMIZING YOUR UNIT		5-1
5.1	General Setup	5-1
5.2	Radar Setup	5-3
	5.2.1 Radar display setup	5-3
	5.2.2 Radar range setup	5-6
	5.2.3 Function key setup	5-7
5.3	Plotter Setup	5-9
	5.3.1 Navigation options	5-9
	5.3.2 Function key setup	5-10
5.4	Chart Setup	5-12
	5.4.1 Chart offset	5-12
	5.4.2 FURUNO, NavCharts™ chart attributes	5-13
	5.4.3 C-MAP chart attributes	5-15
5.5	Data Boxes Setup	5-18
5.6	Hot Page Setup	5-19
5.7	Navigator Setup	5-21
	5.7.1 Navigation data source	5-21
	5.7.2 GPS receiver setup (Set equipped with GP-310B/320B)	5-22
	5.7.3 TD display setup	5-26
5.8	Nav Data Display Setup	5-28
5.9	Sounder Setup	5-29
	5.9.1 System setup	5-29
	5.9.2 Sensor setup	5-31
	5.9.3 Sounding range, zoom range, bottom lock range	5-32
	5.9.4 Function key setup	5-33

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