Furuno 1833, 1943, 1933 manual Iii, 11.6

2.10	Measuring the Range		2-11
	2.10.1	Measuring range by range rings	2-11
	2.10.2	Measuring range by cursor	2-12
	2.10.3	Measuring range by VRM	2-13
	2.10.4	Erasing a VRM, VRM indication	2-14
	2.10.5	Erasing EBL/VRM data boxes	2-14
	2.10.6	Hiding EBL/VRM data boxes	2-14
	2.10.7	Moving EBL/VRM data boxes	2-14
2.11	Measuring the Bearing		2-15
	2.11.1	Measuring bearing by cursor	2-15
	2.11.2	Measuring bearing by EBL	2-15
	2.11.3	Erasing an EBL, EBL indication	2-16
	2.11.4	Erasing EBL/VRM data boxes	2-16
	2.11.5	Hiding EBL/VRM data boxes	2-16
	2.11.6	Moving EBL/VRM data boxes	2-16
2.12	Erasing the Heading Line, North Marker		2-16
2.13	Reducing Noise Interference		2-17
2.14	Rejecting Radar Interference		2-18
2.15	Zoom		2-19
	2.15.1	Zooming in on radar targets	2-19
	2.15.2	Zooming in on ARP, TTM targets	2-19
2.16	Shifting the Picture		2-20
	2.16.1	Manual shift	2-20
	2.16.2	Automatic shift	2-21
2.17	Using the Offset EBL		2-22
	2.17.1	Predicting collision course	2-22
	2.17.2	Measuring range & bearing between two targets	2-23
2.18	Echo Trails		2-24
	2.18.1	Trail time	2-24
	2.18.2	Starting echo trails	2-25
	2.18.3	Trail gradation	2-25
	2.18.4	Echo trail mode	2-26
2.19	Echo Stretch		2-27
2.20	Echo Averaging		2-28
2.21	Outputting TLL Data		2-29
2.22	Guard Alarm		2-30
	2.22.1	Setting a guard alarm zone	2-30
	2.22.2	When the alarm is violated…	2-31
	2.22.3	Cancelling the guard alarm	2-31
2.23	Watchman		2-32
	2.23.1	How watchman works	2-32
	2.23.2	Turning on/off watchman	2-32
	2.23.3	Setting watchman stand-by interval	2-32
2.24	Suppressing Second-trace Echoes		2-33
2.25	Waypoint Marker		2-34
2.26	ARP, TTM Operation		2-35
	2.26.1	Activating/deactivating ARP, TTM	2-36
	2.26.2	Acquiring and tracking targets (ARP)	2-37

iii