Furuno FR-1500 MARK-3 Series User Manual page 39

TGT TRAIL
1. TIME (min)
2. MODE
3. SHADE
4. LEVEL
5. TRAIL COPY
6. THIN TRAIL
7. THIN MODE
3. Press the [2] key several times to select REL or TRUE from the MODE field as appropriate.
4. Press the [ENTER/SELECT] key to confirm your selection, then the [MENU] key to close
the menu.
1.26.2 Trail gradation
Target trails may be shown in monotone or multitone. Gradual shading paints the trails getting
thinner with time just like the afterglow on an analog PPI radar.
Monotone
1. Press the [MENU] key.
2. Press the [2] key twice to select TGT TRAIL.
3. Press the [3] key to select MONO or MULTI from the SHADE field as appropriate.
4. Press the [ENTER/SELECT] key and the [MENU] key in order.
1.26.3 Displaying and erasing target trails
Press the [TGT TRAIL] key to activate or deactivate the target trails feature. The current target trail
setting is displayed at the upper right-and corner of the screen.
Note: Holding the [TGT TRAIL] key depressed for about 3 seconds will cause a loss of target
trail data so far stored in memory.
1.26.4 Thin trails
Target trails may be painted in thinner trails. This is useful when there are a lot targets and
their trails would create congestion on the screen.
1. Press the [MENU] key.
2. Press the [2] key twice to select TGT TRAIL.
3. Press the [6] key to select ON or OFF from the THIN TRAIL field as appropriate.
4. For the R-type radar, you may select the degree of thinness from the THIN MODE field.
The higher the number the thinner the trail. Press the [7] key to select degree of thinness
desired.
5. Press the [ENTER/SELECT] key and the [MENU] key in order.
15sec 30sec 1 3 6
15 30 CONT
REL TRUE
MONO MULTI
1 2 3
OFF ON
OFF ON
1 2 3 4
Multitone
(7. R-type only)
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