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Rev 20201007
Using the PLUS/MINUS adjust to 10 feet. The 20 to 30-foot portion
of the water column is now displayed on the Zoom display. The
entire water column is viewable on the Flasher, Vertical, and Chart,
while your zoomed in section is viewable in the Vertical Zoom or
Chart Zoom
The MarCum MX-7GPS also features “Chart Zoom” which enables
you to use a scrolling graph in Zoom mode. Activate the Chart Zoom
in the Display Settings submenu. You set the zoom just as you
would when using the other sonar options. When you press the
ZOOM button to make a change, the Vertical Zoom window will
automatically open. After adjustments have been made, you may
turn the Vertical Zoom window off again in the Display Options of
the menu.
SIMULATOR
The MarCum MX-7GPS has two simulator modes that will portray a
variety of different depths and signal returns
(Ice Fishing and Open Water). Activating this feature enables the
user to experiment with the various settings without being on the
water. This simulator represents an open water or ice fishing
experience, so the depths and signals will change as it goes through
the simulation.
When using your MX-7GPS in open water [in a moving boat] it is
typical to mark fish as a “hook” or “arch” shape. When stationary, as
in ice fishing, your signals of both your jig and the fish will show as
lines of varying thicknesses.
You may also experiment with settings by getting your MX-7GPS to
get a bottom reading off any tile or cement floor in your house or
garage. Note: This is a live sonar test so the simulator must be
deactivated for this test. To work properly, your test site must be a
bare tile or cement floor. Position your MX-7GPS with the
transducer hanging motionless about 2-3 feet above the tile or
cement floor and then turn the sensitivity up to the maximum (25)
setting. If the transducer is 2-3 feet above the floor, you should get a
bottom reading at about 8-10 feet (the system is calibrated to be
accurate in water, not air as the signals travel differently out of
water).
