1. Radar display of wake···············································································································197
2. Using the lookout alarm ············································································································197
Setting the guard zone··············································································································197
Changing the alarm mode ········································································································199
Eradicating the guard zone·······································································································199
Calling a guard zone ·················································································································199
3.4.1
3.4.2
3.4.3
3.4.4
Displaying the waypoint ········································································································202
Display of the waypoint ·············································································································202
Erasing the waypoint·················································································································202
3.5.1
3.5.2
3.6.1
3.6.2
3.6.3
3.6.4
4.2 Returns from a Target···················································································································208
4.3.1
Sea returns ····························································································································209
4.3.2
False echoes ·························································································································209
139