JRC JMA-5212-4/6 User Manual page 313

[V] Other ship track recording interval setting (Track Memory Interval)
A time interval for recording tracks of other ships can be set.
* This function can be used only when the Target Track Setting function is enabled.
Procedure 1 Press the [TT menu] key.
2 Press the following buttons.
4 Target Track Setting
4 Track Memory Interval
Choices for "Target Memory Interval" are
displayed.
3 Press a number key that corresponds
to the desired track recording interval.
Select from the following:
Off,
3 sec, 5 sec, 10 sec, 30 sec,
1 min, 3 min, 5 min, 10 min, 30 min, 60 min,
1 NM, 3 NM, 5 NM, and 10 NM
5 72
5.6 TRACK DISPLAY
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