Versa Electronics
www.marcumtech.com
Zoom
- The
VX-1i
is equipped with a “bottom zoom” feature. When the ZM
key is depressed the circular display is divided in half. The right half of the
display (12 to 6 o’clock on the dial) will become the entire depth range (20, 40,
80, or 160 foot) you chose when turning the depth range knob to your desired
depth setting. This will be indicated by a red light at the zero mark (12 o’clock)
and another red light at 6 o’clock. These will be stationary and will not move
while in the Zoom mode. The backside of the display (6 to 12 o’clock) is the
other half of your split screen display. This is the Zoom window portion. The
VX-1i
comes with a bottom zoom that displays the bottom 5 feet in an
expanded view. This expanded view of the bottom 5 feet is what is
displayed on the left side of the split screen display (6 to 12 o’clock). For the
Zoom to be activated, you must have a strong bottom return signal (Red) that
equals or exceeds one foot on the display dial. If a strong return signal is not
achieved (this can happen if fishing over a very soft bottom or when trying to
activate the zoom out of the water) the unit will not go into the Zoom mode. If
the unit will not go into zoom mode, turn the GAIN up to 10, this will make the
bottom signal very strong. Once the ZOOM has been activated, turn the
GAIN back down to a normal operating level.
Signal Interpretation
Hard-bottom readings (rock or gravel) will be displayed by a wide band of RED
light indicating a strong return signal. Conversely, a soft bottom (mud or silt)
will return a weaker signal and will result in a narrower RED band or possibly
even a combined RED and ORANGE band. A soft bottom with weed growth
will often appear as a narrow RED or ORANGE band combined with both solid
and broken GREEN segments indicating weeds. Any fish in the weeds may
show as RED or ORANGE depending on fish size and relationship within the
transmit beam (in the middle or on the outside of the transmit signal).
Reading Bottom
- In interpreting depth, always read the leading edge
(shallowest side) of the signal return. If you have a strong signal return (wide
band of RED light) and it starts at 13 feet and ends at 16 feet, the correct
depth is 13 feet or the shallowest leading edge of the return signal. Anything
beyond the shallowest leading edge indicates the strength of the return
signal.
Reading Fish
- Fish will generally appear as separate targets from the bottom.
A fish target can be displayed as RED, ORANGE or GREEN, depending on the
size of the fish and the location within the transmit beam. Larger fish located in
the center of the beam (cone) can appear RED and will be displayed as a
wider band on the display. Smaller fish or fish on the outside of the cone may
appear ORANGE or even GREEN. Fish moving through the transmit beam may
change color as the return signal strengthens or weakens reflecting their
location. Fish that are right on the bottom can appear as part of the bottom.
The best indication of a fish sitting right on the bottom is that the leading edge
of the bottom return signal is either ORANGE or possibly a dithering or
flickering RED segment. It is important that the GAIN or sensitivity be kept to a
minimum when displaying a strong bottom return. Too much GAIN will flood
out the ability to differentiate targets and clutter the display.
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