Humminbird manual Using the 300TX

Using the 300TX

Actual depth capability depends on factors such as bottom hardness, water conditions, and transducer installation. Units will typically read to deeper depths in fresh water than in salt water.

Simulator Operation

The 300TX contains a simulator that allows you to use the unit as if you are on the water. The simulator is invaluable for learning how to operate the 300TX.

There are two ways to start the simulator. If the unit is powered off, press and hold the POWER button for approximately three seconds until you hear a continuous chirp.

The simulator can also be started by selecting the Simulator option on the start-up screen, after you power-up the unit. When this screen is shown, simply press the DOWN ARROW until “Simulator” is highlighted. When the screen times out, the unit will be in simulator mode. When the screen times out, the unit will be in simulator mode.

When in simulator operation, the 300TX responds to control inputs as if it is in actual operation, so feel free to experiment, or to customize the unit for your particular operation.

To exit Simulator mode, power the unit off.

When in simulator mode, the word “simulator” occasionally scrolls across the display indicating the information on-screen is not real sonar data.

Feature Memory

If your 300TX is installed with a transducer connected, any changes you make to the set-up or User Options (see Control Functions) while in Simulator are retained in the unit’s memory. This allows you to use simulator to experiment with the various set-up options, and retain your selected settings for normal operation.

If you are using the 300TX in Simulator when no transducer is connected, any selected options are lost when the unit is powered off. The 300TX will return to Factory Settings, or options selected when last used with a transducer, if no transducer is connected.

IMPORTANT: A transducer must be connected to the 300TX in order to retain user settings selected when in simulator mode. If no transducer is detected, the unit defaults to pre-selected options when powered off.