36
Rev 20201007
SCROLLING (CHART) DISPLAYS
These windows will show not only what is happening below you in
real time but will also enable the user to have a “history” of what has
happened. While most used for open water, many anglers are
discovering the benefits of using a chart on the ice. The MarCum
MX-7GPS stands apart from other chart in that it displays with ultra-
fast “True-Time” sonar response – less than .02 seconds between
the echo reaching the transducer and when the signal appears on
the LCD screen. Other charts experience a much longer response
time. When used from a boat in open water, the user will see signals
displayed in classic “chart” fashion; the bottom will be a solid band,
and fish or other objects display as “arches” when you are moving.
When used from a stationary position, such as ice fishing, the
bottom will display as a solid band, but other signals, like fish or
your jig, will display as lines of varying thickness. Always remember
that the thicker the band, the stronger the signal. A large fish is likely
to display as a fairly thick band, while a small ice jig will show as a
very fine line. The best way to learn how to interpret signals on the
chart is to have it displayed along with the circular or vertical
display. After using the chart along with one of the more familiar
displays, you may find that you like fishing with the chart best of all.
It is fascinating to watch the “trail” of your jigging motion, and fine
tuning your presentation to exactly what the fish want has never
been easier.
The MarCum MX-7GPS has the option of displaying a full water
column chart, as well as an adjustable zoom chart. The
interpretation of these signals improves with experience and use in
the field.
