4. VIDEO SOUNDER OPERA TION
4-7
4.2.3 How to enable automatic sounder operation 1. If not displayed, press the HIDE/SHOW key t o show the sounder soft keys.
2. Press the B: AUTO/D. BOX soft key.
A UTO MODE
▲
CR UISING
FISHING
OFF (MANU AL)
▼
Mode/frequency windo w
3. Use the Trackball or the ENTER knob to sele ct CRUISING or FISHING as appropriate.
4. Press the E: RETURN soft key.
4.3 Manual Sounder Operation Manual operation is us eful for observing fish s chools and bottom us ing a fixed gain setting.
The gain, range and range sh ift functions used together giv e you the means to select the
depth you can see on t he screen. The basic rang e can be thought of as providing a
“window” into the water column a nd range shifting as moving the “win dow” to the desired
depth.
4.3.1 Selecting the manual mode 1. If not displayed, press the HIDE/SHOW key t o show the sounder soft keys.
2. Press the B: AUTO/D. BOX soft key to show the mode/frequenc y window.
3. Select OFF (MANUAL).
4. Press the E: RETURN soft key.
4.3.2 Selecting display range Press the [RANGE +] or [RANGE -] key to select a range. The defau lt ranges in feet, meters,
fathoms and passi/braza are as below. Note that the rang e cannot be changed in the
automatic sounder mod e.
Default sounder ran ges
Range 8 Range 1 Range 2 Range 3 Range 4 Range 5 Range 6 Range 7
ETR-6/10N ETR-30N
15 ft 30 ft 60 ft 120 ft 200 ft 400 ft 1000 ft 4000 ft 4500 ft
5 m 10 m 20 m 40 m 80 m 150 m 300 m 1200 m 1500 m
3 fa 5 fa 10 fa 20 fa 40 fa 80 fa 150 fa 650 fa 900 fa
3 P/B 5 P/B 10 P/B 30 P/B 50 P/B 100 P/B 200 P/B 700 P/B 900 P/B
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