0:THH
t; H'
j/ 'yL
j/'11 if,
FIGURE 40
graph record becomes coarse and
the ability
to separate fish from the
bottom or from other fish will be
decreased. (See Figure 41 & 42.)
Therefore, the lower
the
suppression setting, the better.
Increase the Suppressor setting
only as far as necessary to
remove the erratic, unwanted
noise marks. Most of the time at
low or trolling speeds, no
suppression will be necessary.
To use the Suppressor, simply
press the desired amount of
suppression desired, from 0 to 7,
and then press the 2nd key and
the 9 key. For example, if you
wanted to increase the
suppression level to 5, then you
would press: 5 - 2nd - 9, in that
order. When any Suppressor level
other than 0 is chosen, the level is
printed on the bottom line of the
chart paper. For example, if the
suppressor level is set to 5, then
the X-16
will print: SUP=5.
The only disadvantage to this
system is that resolution, or the
ability to separate targets, is
diminished when the pulse length
is increased. A 200 is (micro-
second) transmitter pulse length
used on the X-16 when power is
first turned
on, will allow
the unit
to display two fish or targets that
are only 6 inches apart. In other
words, if two fish that are 6 inches
apart
are displayed on the
graph
paper, they
will show up as two
separate arches when the trans-
mitter is operating with a 200 ps
pulse
length. Now, if we increase
the transmitter's pulse length to
400 ps, (by increasing the Sup-
pressor) those
same two fish
arches will blend together and
show up as one fish or
possibly even a 'blob" on the
paper.
With a 400 is transmit
pulse
width, those
same two fish will
have to be at least 12 inches apart
before they
will show up as two
separate arches on the
graph.
This is why it is important
to leave
the Suppressor control turned
20
256.OFT 01 LOIJRAIICE 256.OFT
FIGURE 13
UPPER LIMIT
Many times it is desirable to
expand a section of the area that
is displayed on the graph recorder
to show more detail. This is made
possible by the X-16 to show
segments of the underwater world
by using the UPPER LIMIT func-
tion. Using the UPPER LIMIT key
allows you to display any depth
range at the top of the chart
paper.
Example: Turn on unit and set
range
to 20 - 60 feet.
Press: 2 - 0 - UPPER LIMIT
Press: 6 - 0 - LOWER LIMIT
20.0 - —-- ---20,0 -:
23.0-- — —-----—- - -28.0
36.0
——--- — -
36.0
44.0-— --—— —-— 44.0
52.0 —---— —
66.2 61.2-—-
_ —— —- 66.6- -
?2.OFT
--- 31-— —-
LPMCE — 72.PFT—
FIGURE 15
The Upper and Lower Limits
can be used in various combina-
tions to show segments from the
surface to the bottom and any-
where in between. A one foot
segment of the depth can be
displayed at any time, if desired.
Representative samples
of chart
paper
are shown in the back of
this manual.
If you wish to display your depth
settings
at any time,
simply press
the 2nd key and then the SCALE
key. The current range
will be
printed on the paper immediately.
This will not change the
depth
selling.
NOTE:
Although the maximum
lower limit of the
depth range is
8000 feet, the actual depth that
the X-16 will reach is dependent
on water conditions, bottom condi-
tions, and the quality of the
transducer installation. Typically,
the X-16 will reach a depth of
approximately 1000 feet without a
power booster. You may get more
or less depending on conditons.
LINES
When the X-16 is first turned
on,- depth lines will be printed on
the paper. If you desire to turn the
Lines
off, press the LINES key. To
turn the lines back
on, press the
LINES key again.
-on ___0.0
l;f 'F'?Ii1irr;ç, flr!il..6!r1j!jI!!!I
0.0 l,O — -
-51.2 —- 51.2— —- -- 50.4 -
102.4—--— —-—--——--—-——— 102.4
653.6 —— 153.6--
FIGURE 42 SIJPPRESSION:TOOHIGH
— —-- —— 204.0 --
-. —-,- \...
-' - , ' ekF
'4,': $'SWC c
- r ' ''1 ''4rzrr—" OURAIICE
FIGURE 41 PROPER SETFING I.
60.6 FT
——
21
----——----
LOURAIICE —- -—--
60.0 FT
-
FIGURE 14
Example: Set range to 45 - 72
feet.
Press: 4 - 5 - UPPER LIMIT
Press: 7 - 2 - LOWER LIMIT
9
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