Std Dual Frequency Mode; Std Single Frequency With A-Scope Mode; Std Dual Frequency With A-Scope Mode - JRC FF50 Instruction Manual

52

STD Dual Frequency Mode

• Select STD DUAL to divide the screen vertically in two in the ratio of
1:1. It shows the high frequency standard display on the right side of
the screen and the low frequency standard display on the left side of
the screen. In this mode, it is easy for the operator to recognize the
fish type because the echoes of schools of fish differ distinctly between
high and low frequencies.

STD Single Frequency with A-Scope Mode

• Select STD/A-SCOPE to divide the screen vertically in two in the
ratio of 6:1. It shows the A-Scope, corresponding to the standard
display on the right side of the screen, and the low or high frequency
standard display on the left side of the screen. The A-Scope shows the
amplitude of the fish and bottom echoes through the color and width
of each echo transmission. Greater width, and higher color level (the
maximum level is 15) indicate, stronger signals. This makes it easier
for the operator to recognize a big fish instantaneously because the
amplitude of the echo from a big fish is large even though the echo
itself is not so strong.
Push to toggle between the high and low frequencies.

STD Dual Frequency with A-Scope Mode

• Select DUAL/A-SCOPE to divide the screen vertically in four in the
ratio of 3:1:3:1. It shows the high frequency standard display with the
corresponding A-Scope on the right side of the screen and the low
frequency standard display with the corresponding A-Scope on the left
side of the screen.