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1. OPERATIONAL OVERVIEW
1.1 Control Description
Note that the [AUDIO] control is not operative from the 2
nd
control unit when two
control units are installed.
Turns power on.
Turns power off.
Raise, lower the transducer.
: Raises the transducer.
: Lowers the transducer
(mid protrusion).
: Lowers the transducer
(full protrusion).
Selects display
mode.
Selects display
range (horizontal
and vertical modes).
Adjusts receiver
sensitivity (hori-
zontal and ver-
tical modes).
Adjusts display brilliance
(supplied monitor only).
Adjusts volume of internal
and external (option) loudspeaker.
Automatic transducer train width
on audio bearing mark (horizontal
mode), vertical bearing mark
(vertical mode).
Off→±12°→ ±24°→±36°→Off
In vertical combination mode
switches between normal
and expansion display.
Displays range
and audio bearing marks
to monitor echoes along
audio bearing mark
(horizontal mode).
Trackball
• Positions trackball
mark.
• Selects items,
options on menu.
Opens, closes menu.
Off centers the picture.
Deletes
trackball-
selected
mark.
SHOOT: Displays net data.
EVENT: Inscribes event mark,
own ship position mark.
ESTIMATE 1, 2: Compares volume of
two fish schools.
TARGET LOCK: Tracks fish school.
FISH: Measures speed of
fish school.
Sets transducer
tilt angle
(horizontal
mode).
Selects mode (horizontal 1/
horizontal 2, or horizontal/
vertical, horizontal/half-circle)
for which to adjust sensitivity,
select range.
Selects user
program.
Execute assigned
program.
FSV-84
HSV
V1/S
Control unit