User's Manual

3-30
3.4 General Radar Operation
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Changing Motion Mode of Trails (Trails mode)
Display does not change even if this key is switched on the JPL-600-MK2
for VTS.
Procedures 1 Put the cursor on radar trails display true / relative switching (TT / AIS
information ⑬ on page 2-23), and press the [ENT] key.
The trails motion modes are switched.
T ⇒ R ⇒ T
3.4.9 Erase Part of Radar Trails (Trails Erase)
A part of the radar trails can be erased.
Procedures 1 Press the [TRAILS] key for 2 seconds.
The RADAR Trails Setting menu will appear.
2 Open the Trails Erase menu by performing the following menu
operation.
7. Trails Erase
3 Press the [3] key.
The Erase Size switches.
2x2 : 2x2 pixels
4x4 : 4x4 pixels
8x8 : 8x8 pixels
16x16 : 16x16 pixels
32x32 : 32x32 pixels
4 Press the [1] key.
The Trails Erase Mode is set to On .
A square cursor □ will appear at the location of own ship.
5 Put the cursor on the position where you want to start erasing, and
press the [2] key.
The Trails Erase Start function is selected and trails start to be erased.
Moving the cursor will erase that portion of the trails.
6 To finish erasing the trails, press the [2] key.
The trails erase operation is terminated.
7 Press the [1] key.
The Trails Erase Mode is set to Off .