Specifications

Power Connections
The Z-7200
operates
from a 12 volt
battery
system.
Attach the
power
cable to an
accessory
or
power
buss. If
you
have
problems
with
electrical
interference,
then
attach the cable
directly
to the
battery.
Elec-
trical interference shows
as random dots on the
display
whenever the
boat's
engine
or an
accessory
is on.
The
power
cable has two
wires,
red is the
positive
lead and black
is
negative
or
ground.
Attach the in-line fuse holder to the
red wire on the
power
cable with the
crimp
connector. The other
end of the fuse holder
attaches to the
battery
or
accessory
buss. If
the cable is not
long enough,
splice ordinary
#18
gauge
wire onto it. Be certain
that the fuse holder is
as closeto the
power
source
(battery
or
accessory
buss)
as
possible.
This
protects
the
power
cable
and
your
Z-7200 in
the event of a short. Use a 3-
amp
fuse.
The Z-7200 has
reverse
polarity protection.
No
damage
will occur
if
the wires are reversed.
(However,
the unit will not work
until the wires are
attached
correctly.)
of the bottom. In
other
words,
you
can tell If the
bottom is soft or hard. A
hard bottom
returns a
strong signal causing
awidegrayline.
Asoft,
muddy
or
weedy
bottom
returns a weaker
signal
which is
emphasized
with a
narrow
gray
line.
IN-DASH -A sonar unit
installed
through
a hole in the boat's
dash.
Usually,
the face of the sonar is
flush or
nearly
so with the dash.
kl-Iz
-
Kilohertz. A
measurement of
frequency.
Your
Eagle
sonar
operates
at 192 Kilohertz.
(192,000
cycles per second).
LCD
-
Liquid crystal
display.
The screen or
display
of a
Liquid Crystal
Graph
sonar
instrument.
LCG
-
Liquid Crystal
Graph.
NOISE
-
Any
undesired
signal.
Electrical
noise is caused
by engine
ignitions systems, radios,
etc. Acoustic
noise is caused
by
the vibration of
the
engine
or other
mechanical sources. It
appears
on the
display
as
random dots or lines.
OPERATING FREQUENCY
-
Frequency
that
the sonar unit's transmitter
and
receiver are tuned
to.
OUTPUT POWER -The
amplitude
of electrical
energytransmitted
from
the
sonar unit to the
transducer. Measured in
watts,
the
higher
the
output
power,
the
deeper
a
sonar unit can
read,
and more detail can be
displayed.
PEAK-TO-PEAK
-
A
measurement of
the transmitters
power
output.
PIXEL
-
The small
dots or
squares
on a
liquid crystal display
or CRT.
PIXEL DENSITY
-
The
number of
pixels per
square
Inch on a
liquid
crystal
display.
The best
resolution Is obtained when
a
high
number of
pixels
are
in
the vertical.
PULSE LENGTH
-
The amount of
time that the sonar
transmits. This is
measured in
micro-seconds.
The shorter the
pulse length,
the better the
resolution. For
example,
a 30
micro-second
pulse length
is
equal
to a one
inch
resolution.
RANGE
-
The section of water
shown on the sonar
display.
For
example,
a 60
foot
range
has zero for
the
upper
limit and 60 for
the lower limit.
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