7. FISH FINDER (SOUNDER)
7-24
1] improves the detection resolution, but the detection range is shorter than with [Std]
(pulse length is 1/4 of [Std]). [Short 2] raises the detection resolution, however detec-
tion range is shorter (pulse length is about 1/2 of [Std]) than [Std]. [Std] is the standard
pulse length, and is suitable for general use. [Long] increases the detection range but
lowers the resolution (about 1/2 compared to the [Std] pulse length). (For DFF3, DI-
FFAMP)
[Rx Band HF (MF, LF)]: The RX bandwidth is automatically set according to pulse
length.To decrease noise, select [Narrow]. For better resolution, select [Wide]. (For
DFF3)
[Temperature Port]: Select the data source for water temperature (For DFF3, DFF1-
UHD).
[MJ]: The water temperature data from the water temperature/speed sensor.
[Low Frequency]: The low frequency measured water temperature.
[High Frequency]: The high frequency measured water temperature.
[Fish Finder Demo Mode]: Activates, deactivates the fish finder demo mode, which
provides a fish finder display with data stored in the memory. Connection of the trans-
ducer is not required. Requires connection to the internal fish finder, DFF1, BBDS1,
DFF3, DFF1-UHD, or DI-FFAMP.
[Off]: Disables the fish finder demo display.
[Set Hardware to Factory Default]: Select this menu item to restore default settings
for the unit selected in [Fish Finder Source].
[Reset Default Settings]: Select this menu item to restore default settings for the
[Fish Finder] menu.
7.20 Interpreting the Display
Zero line
The zero line (transmission line) shows the position of the transducer. The line disap-
pears from the screen when the range is shifted.
Zero
line
Range shifted