Specifications

TC
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0
2
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GRAYLINE: OFF
24
At
power
on,
the
digital
will flash "0" until it has "locked on"
tothe
bottom
signal.
Once
it has
acquired
the botlom
depth,
it will
display
the
depth
in the lower left of the
display.
Thedigital candisplaythe
bottomdepth
lntenths ofafootinwater
shallower than 100 feet. See the COMMAND
section for details.
There are two different
sizes of the
digital depth display.
They
can
be
easily changed
with a menu selection.
See the COMMAND section for
details.
13
2
PULSE
t,tj 1 L fl
MENU #11
-
PULSE WIDTH
There is a
relationship
be-
tween resolution and
transmitter
pulse
width.
Resolution,
In this
case,
Is the
ability
of a sonar
to
separate targets.
The
shorterthe
pulse
width,
the betterthe sonar's
ability
to
separate targets.
How-
ever,
in
deep
water,
the shorter
the
pulse
width,
the less
likely
a
return echo will be received. In
fact,
the Z-7200
automatically
increases the
pulse
width as the
range
increases. In shallow wa-
ter,
a narrow
pulse
width is bene-
ficial,
since the
probability
of echo
detection
is
high.
For even better
target separation,
the Z-7200
gives you
the
capability
to narrow
the
pulse
width. Combine
that
with
atwentyfoot
zoom and the Z-
7200
displays
detailfar betterthan
SENSJ flvir
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t
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A
4
a
6
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2
—,
SHflRT
6
FOF HO
PRESS
414
-'
,Ls
22
24
other
liquid crystal graphs.
To
change
the
pulse
width,
press
both
arrow
keys
in the RANGE section at the same
time.
Using
the same arrow
keys,
scroll
through
the menus
until menu #10
appears.
Use the arrow
keys
in
the ALARM section to
change
the
pulse
from normal to short or back
again.
Press the AUTO
key
to activate the
selection.
GRAYLINE:
ON
DIGITAL
Built ;nside the Z-7200 is a
complete
digital
sonar. It
automatically
discriminates between the valid bottom echoes
and false echoesfrom
fish,
thermoclines,
or other
signals.
The
digital display
will show
only
the
bottom
depth.
Use it
anytime, regardless
of the mode the Z-7200 Is in.
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