4 BASIC OPERATION
■TRAILS function
The trails function memorizes echoes continuously or at constant intervals. This is useful for watching other ships’ tracks, approx. relative speed, etc.
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| Trail time | TRAIL | |
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(0.25) M.T U N E |
| T.VECT 6M | TRAILS | Trail interval |
3/4 NM C U R S | 011.4˚ R | 0.453NM | 1:0 5 | |
STW 15 . 7KT | H UP | HDG 253 . 9 ˚ T | counter | |
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Trail time
•Setting the trail interval time
qPush [MENU]/[ 
] twice to call up the VIDEO menu.
•Push [Ú] several times until the “TRAIL TIME” section becomes highlighted.
wPush [Ω ≈] to select trail interval time.
•6 sec., 15 sec., 30 sec., 1 min., 3 min., 6 min., 15 min. and ∞ (continuous) are available.
ePush [MENU] several times to exit the menu.
•Using the TRAILS function
qPush [TRAILS]/[ 
] to turn the trail function ON.
•“TRAILS” and trail interval time appears in the upper right of the screen.
•Trail interval counter starts to count up to the trail time. w All displayed echoes at the plotted time are memo-
rized and displayed with a graduated intensity to- gether with the current echoes.
•Echoes are displayed with minimum intensity when “∞” is selected.
ePush [TRAILS]/[ 
] to cancel the trail function and erase the plotted echoes.
• “TRAILS” and trail interval time disappears.
■Power save function
The power save function conserves the boat’s battery power by pausing the transmission. The standby (pausing) times are selectable (rotation number is fixed to 10).
For example, when 1 min. is selected, the scanner ro- tates 10 revolutions; then stops for 1 min., and then re- peats this sequence while the power save function is activated.
Count down the standby time
1 | (0.25) | S AV E | T.VECT 6M | 1 | (0.25) | S AV E | T.VECT 6M |
NM CURS | 014 . 6˚ T | 0.900NM 0:48 | NM CURS | 014 . 6˚ T | 0.900NM 0:00 | ||
SOG17 . 7KT | H UP | HDG273 . 9 ˚ T | SOG17 . 7KT | H UP | HDG273 . 9 ˚ T | ||
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GPS |
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COMPASS |
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E B L 1 |
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E B L 2 |
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MOB |
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CURS | 3 4 ˚ 3 7 . 7 2 N 1 3 5 ˚ 3 4 .4 2 E |
| CURS | 3 4 ˚ 3 7 . 7 2 N 1 3 5 ˚ 3 4 .4 2 E | ||||
Push and hold [TX] for 1 sec. Scan and STBY alternates to turn the SAVE function on.
DSetting the scanning standby time
qPush [MENU]/[ 
] four times to call up the INT. SETTING menu.
wPush [Ú] until the “SAVE TIME” section becomes highlighted.
ePush [Ω ≈] to select standby time.
• 1, 6, 15, and 30 min. are available.
rPush [MENU]/[ 
] twice to exit the menu display.
DUsing the power save function
qPush and hold [TX (SAVE)]/[ 
] for 1 sec. to turn the power save function ON.
•The save indicator appears in the top of the screen. w After the scanning rotations are finished, transmis-
sion and rotation are suspended until the selected standby time elapses.
•The display shows the last scanned echoes until the scanning restarts.
•“SAVE” and standby time appear in the top of the screen and the standby time is counted down.
eAfter the selected standby time elapses, transmis- sion and rotation restart.
rPush [TX (SAVE)]/[ 
] to cancel the power save function.
• The save indicator turns OFF.
NOTE: When you use the power save function to- gether with the alarm function, the CRT display is turned OFF until an object enters the programmed alarm zone, therefore, more power saving is possi- ble. (p. 17)
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