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Lowrance X-15A Installating And Operation Manual

Computer sonar.
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To
turn
this feature
on,
simply
press the
2nd
key,
then press the
"4"
key.
The
paper speed will im-
mediately
slow
down, signifying
that the
function
is
enabled.
To
turn the
Alternate Transmit
and
Print
feature off, simply press
the
2nd key and then press the
"7"
key.
The
paper speed will im-
mediately speed up, signifying
that
the
function has been turned
oft.
When entering
any
number or
combination
of keys
on
the
key-
board
and
you make
a
mistake,
press the 2nd
KEY then
0.
This
will clear the
keyboard.
For
exam-
ple,
if
you
wanted
to
set a
Lower
Limit
of
50 feet and
pressed
40
feet
instead,
before pressing
the
Lower Limit Key
press
2nd
-
0
and the
keyboard will
be
cleared.
You
could
then press
5
-
0
-
Lower
Limit for the
desired range.
To
cause the X-15A
to
reprint
the
level
of
Disbrimination, SCC,
or
Pulse
Width
at
the
bottom
of
the
page,
simply press 2nd
and
then the
corresponding
key
(DISC,
5CC/MARK,
or
PULSE) and
it
will
be
reprinted immediately.
Paper Saving Feature
APPROXIMATE PAPER SPEED
Without Alternate Transmit and Print
Minimum
I
Maximum
LOWER
LIMIT
Paper Speed
Paper
Speed
Inches
Hours
Inches
Hours
RANGE (feet)
10-120
Per
Mm
Per
Roll
Per
Mm
Per Roll
1.0
10
2.35
4.25
130-510
0.5
20
1.4
7.14
520-830
0.15
66
0.75
13.3
Below 840
0.15
66
0.75
13.3
APPROXIMATE PAPER SPEED
With Alternate Transmit and Print
Minimum
Maximum
LOWER
LIMIT
Paper Speed
Paper
Speed
Inches
Hours
Inches
Hours
RANGE (feet)
10-120
Per
Mm
Per
Roll
Per
Mm
Per Roll
0.5
20
1.4
7.14
130-510
0.20
50
0.8
12.5
520-830
0.15
66
0.75
13.3
Below 840
0.15
66
0.75
13.3
LITHO USA
988-0096-01
INSTALLATION
AND
OPERATION MANUAL
X-15A
COMPUTER SONAR
•LOWRANCE
ELECTRONICS, INC.
12000
F, SKELLY
DR,
TULSA,
OK 74128
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   Summary of Contents for Lowrance X-15A

  • Page 1

    Lower Limit Key press and the keyboard will cleared. could then press Lower Limit for the desired range. cause the X-15A reprint level Disbrimination, SCC, Pulse Width bottom simply press 2nd page, then the corresponding (DISC, 5CC/MARK,...

  • Page 2

    Discrimination level DISC Press: Result: --• 2-—— ______ -••--— 2'I- ..14 Figure Print Alternate Transmit and using the X-15A in deep When or if you wish simply con- water, may be serve desirable paper, speed even slow the more paper than the automatic system allows.

  • Page 3

    — —. Ia—-— ———- 2L1---——.-— 29-—- -•-—-- ---—-bO-—-F-ILU Figure Discrimination Noise pulses are largest most often received sonar units. Lowrance has patented Suppression which many years effective eliminating noise (See Transmit display. Width.) The only Pulse drawback that Suppression system...

  • Page 4

    X-15A automatically pulse width initial olution becomes much better. pulse length lower The X-15A allows you limits are deeper operator. (Note: Initial of this fact by advantage is the pulse length possible when Suppressor con-...

  • Page 5

    Feet-, Fathoms-, Meters. pulse Transmit Pulse Width noise suppression system the X-15A patented pulse length discrimination suppression and show up as as the circuit, and same sibly used Lowrance's vari-...

  • Page 6

    (20 degree) are ideally suited deeper water operating in shallow The 20 medium depths. degree Lowrance transducers give degree cone allows you to accurate angle more underwater world. In though the 15 feet...

  • Page 7

    (such by air tem) water which is both cases, duce unwanted marks (See paper. Figures Fortunately, noise pulses tively short sonar real signals. Advancing Suppression knob will system reject short without pulses desired, the Sen- should be rotated ¾...

  • Page 8

    Most speeds, no necessary. Figure Figure 9 Figure 8 sensitivity in way. This exclu- patented design sive with Lowrance. However, with high suppression settings, record becomes coarse and graph fish from the ability separate fish or from will bottom other decreased.

  • Page 9

    GRAYLINE range capabilities. outline bottom contour Lower Limit hidden you first turn on When composition X-15A, bottom. hard bottom re- (See Figure a very strong signal causing gray line. muddy or To change soft, weaker...

  • Page 10

    —12n Figure a section of the area that pand on the graph recorder displayed show This is more detail. made X-15A show possible 10. Push of the underwater world segments by using the UPPER LIMIT func- tion. UPPER LIMIT key...

  • Page 11

    SCALE key. Remember, displayed either LOWER LIMIT Example: Press: SCALE Result: lI—I D—I (See Figure2O) marker function the X-15A so that events when desired. simply press and a vertical will line entire MARK down will line printed key is held --—-...

  • Page 12

    "B"), cone, again Figure zero adjust control been placed on the back inside wall of the X-15A near the upper left so that the zero hand corner line's be adjusted on position paper. the case front and look...

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