Dual Frequency Display - Furuno NavNet TZtouch3 Series Operator's Manual

How to switch between the low- and high-frequency displays
You can switch between the low-and high-frequency displays
from the pop-up menu. Open the pop-up menu, tap [Frequen-
cy], then turn on [HF] or [LF] as appropriate.
Note: Using the same method mentioned above, you can
switch the video on the dual frequency display and zoom dis-
play.
Dual frequency display: Swaps the low-frequency and high-frequency images (de-
fault setting: low frequency on the left and high frequency on the right).
Zoom display: Switches between single images (low frequency or high frequency).
7.3.2

Dual frequency display

The dual frequency display provides both low and high frequency pictures, the low fre-
quency on the left half (default). Use the dual frequency display to compare the same
picture with two different sounding frequencies.
Low
frequency
m
40.4
LF/HF
50/200 kHz
How to select the dual frequency display
Tap the screen to show the pop-up menu. Tap [Mode], then turn on [Dual Freq.]. The
frequency selected with [Frequency] appears on the right half of the screen.
How to set separate ranges for the low- and high-frequency displays
1. Open the [Fish Finder] menu.
2. Turn on [Split Range]. A message informs you that ACCU-FISH
when the split range is used.
3. Tap [OK].
4. Tap the close button on the title bar to finish.
5. Pinch the high- and low-frequency displays to change their range.
Note: The slider bar can be used to adjust the range of the image shown on the
left-half of the screen.
Low
frequency
Freq.
(kHz)
Low
High
7. FISH FINDER (SOUNDER)
Detection
Beamwidth Resolution
range
Wide Low
Narrow High Shallow
Bottom
tail
Deep Long
Short
™
will be disabled
7-3