Using the 450TX

MENU FUNCTIONS

this case smaller sonar returns are disregarded. This is useful for eliminating many small sonar returns when seeking larger species of fish.

The 450TX remembers this selection even when the unit is powered off.

Numeral Size. Two options are available: Big

and Small. The factory setting is Big. With this setting, the digital depth and speed and temp

numerals are drawn large enough to be read from across the boat. The big numerals occupy space on the display that could be used for the

graphics area. Hence, the small numerals

option. With small numerals selected, a greater amount of the display area is available for the graphic view. This effectively increases the display resolution of the unit.

Numeral Size settings are remembered when powered off.

Transducer. The Transducer Option controls the 450TXs ability to determine the

transducer connected. If you are using the standard tri-beam transducer or wide side transducer, no adjustment to this menu is needed unless the transducer develops a

fault, which is a rare occurrence. The factory

setting for the Transducer menu is "Auto". The transducer menu selections will be remembered when the 450TX is turned off.

If a faulty transducer is connected, the 450TX may not change the screen presentation to match the transducer. In this instance, you may need to manually select "Tri-beam" for the tri-beam transducer or "Side" for the WideSide transducer.

Often a transducer switch is used to connect two tri-beams transducers, or a tri-beam and a wide side to the 450TX. In "Auto" the 450TX identifies the transducer as the switch is changed. Only if the transducer is faulty do you need to manually identify the transducer in the menu.

When using a dual beam (DHS-W) and tri-beam transducer together with a switch, leave the menu set to Tri-beam. When using a dual beam and Wide Side transducer together with a switch, manually select the correct transducer in the menu each time the switch is changed.