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Humminbird 300TX - page 1
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Humminbird 300TX - page 2
INSTALLATION PREPARATION PARTS SUPPLIED PARTS SUPPLIED Before installing your new Humminbird fishfinder, please ensure the following parts are included in the box: • Fishfinder • Transducer with 20’ (6m) of cable and mounting hardware kit • Mounting system an d mounting hardware kit • 6’ (2m) power cable • Publications kit It any of t ...
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Humminbird 300TX - page 3
INSTALLATION PREPARATION INSTALLATION OVERVIEW Determining How to Mount the Transducer Your Humminb ird fishfinder includes a standard transducer. This transducer can be mounted on the transom of the boat or bonded to the inside of a fiberglass hull boat. The transom installation, which is the most widely used, places the transducer on the outside ...
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Humminbird 300TX - page 4
INSTALLATION PREPARATION ALTERNATE M OUNTING METHODS ALTERNATE TRANSDUCERS AND MOUNTING METHODS Your Humminbird fishfinder comes with everything necessary for installation and operation on most boats. However, there are several situations which may require a different type of transducer. In board boats, wood or metal hulls, and sail boats create un ...
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Humminbird 300TX - page 5
INSTALLATION PREPARATION TRANSDUCER EXCHANGE TRANSDUCER EXCHANGE Other transducers are available as replacements for the standard transducer. You may exchange your new and unassembled transducer for another type by returning i t to the address listed in Customer Support. Some transducers may have additional cost. Refer to the Accessory catalog or c ...
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Humminbird 300TX - page 6
INSTALLAT ION TRANSOM INSTALLATION Do not begin this transducer installation until you read the Installation Preparation in the Operation Guide. This chapter contains information critical to the correct installation of your transducer. Due to the wide variety of b oat hulls, only general instructions are presented in the installation guide. Each bo ...
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Humminbird 300TX - page 7
INSTALLATION TRANSOM INSTALLATION • If the propeller(s) is (are) forward of the transom, it may be impossible to find an area clear from turbulence, and a different mounting technique or transducer type should be considered. Step Two - Drill the Mounting Holes 1. Remove the mounting template from the front of the Operations Manual. 2. Hold the te ...
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Humminbird 300TX - page 8
INSTALLATION TRANSOM INSTALLATION Step Four - Mount the Transducer to the Transom 1. Apply silicone sealant to the mounting holes drilled into the transom. 2. Align the transducer assembly with the drilled holes in the transom (Figure 8). 3. U se either a flat head screwdriver, a 5/16" (8mm) hex driver, or a 5/16" (8mm) socket to mount th ...
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Humminbird 300TX - page 9
INSTALLATION TRANSOM INSTALLATION Step Six - Route the Cable There are several ways to route the transducer c able to the to the area where the control head will be installed. The most common procedure routes the cable through the transom into the boat. Inside the boat there is often a channel or conduit used for other wiring that the cable can be ...
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Humminbird 300TX - page 10
INSTALLATION INSIDE THE HULL INSTALLATION INSIDE THE HULL INSTALLATION Inside the hull installation requires the mount system and control head be installed and operational. See Installing the Control Head for instruction on installing the unit. Inside the hull mountin g generally produces good results in single thickness fiberglass - hulled boats. ...
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Humminbird 300TX - page 11
INSTALLATION INSIDE THE HULL INSTALLATION 3. Power up the Control Head. 4. Run the boat at various speeds and water depths while observing the screen on the Control Head. If the unit functions well at low speeds but b egins to skip or miss the bottom at higher speeds, the transducer needs to be moved. If depth performance is required, test the fish ...
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Humminbird 300TX - page 12
INSTALLATION CONTROL HEAD INSTALLATION CONTROL HEAD INSTALLATION Step One - Determine Where to Mount Begin the installation by determining where to mount the control head. Consider the following to determine best location: • The cables for power, transducer and temp/speed accessories (if applicable) should be installed first and must reach the mo ...
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Humminbird 300TX - page 13
INSTALLATION CONTROL HEAD INSTALLATION and one amp fuse (not inc luded) for the protection of the unit (Figure 21). Humminbird is not responsible for over voltage or over current failures. In order to minimize the potential for interference with other marine electronics a separate power source (such as a second batter y) may be necessary. Step Thre ...
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Humminbird 300TX - page 14
INSTALLATION CONTROL HEAD INSTALLATION Step Five - Assembling the Connector Holder 1. Insert the cabl e connectors into the connector holder. The cable connectors are labeled, and there are corresponding labels on the connector holder (Figure 26). The slots for the connectors are keyed to prevent reverse installation, so do not force the connector ...
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Humminbird 300TX - page 15
INSTALLATION TEST THE INSTALLATION TEST THE INSTALLATION Testing should be performed with the boat in the water, however you can initially confirm basic operation with the boat trailered. Press POWER once to turn the unit on. There will be an audible chirp when any button is pressed to confirm the button press. If the unit does not power - up, ensu ...
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Humminbird 300TX - page 16
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 sim ulator that allows you to use the unit as if you are on the water. The simulator is invaluable f ...
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Humminbird 300TX - page 17
What You See On - Screen Your 300TX uses a 128 x 64 matrix FSTN LCD display. This display provides outstanding viewability in all light conditions over a wide range of temperatures. At initial power - up, the 300TX uses settings that were set in the factory. After initial use, the 300TX will remember the settings you enter. There are several elemen ...
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Humminbird 300TX - page 18
Wave action also affects the bottom depiction. The information drawn is a distance measurement, so if the boat is moving up and down over flat bottom, the bottom depiction often appears in regular variations that match wave timing. Structure . Structure is defined as any object physically attached to the bottom. The sonar configuration of the 300TX ...
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Humminbird 300TX - page 19
species. The signal intensity is “normalized” for depth so that a small fish close to the boat d oes not appear as a large fish symbol. ID+ adds an additional piece of information to help the user locate fish. On selected fish symbols, the digital depth of the designated fish is drawn to help locate the fish vertically. This is especially helpf ...
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Humminbird 300TX - page 20
screen indefinitely. Once you release the menu button, the screen will time out. Once a menu times out, it is still considered the active menu. Press MENU to bring up the last menu used. Arrow Keys. The UP ARROW and DOWN ARR OW make adjustments to menu functions. On the left side of every menu there are UP ARROW and DOWN ARROW symbols. The symbols ...
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Humminbird 300TX - page 21
In murky or muddy water, it is often helpful to redu ce the sensitivity. This prevents the display from being cluttered with sonar returns from debris or suspended particles. IN very clear or very deep water, it may be helpful to increase the sensitivity since event he smallest sonar return may be of inter est to the user. The adjust Sensitivity, p ...
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Humminbird 300TX - page 22
Zoom. Zoom is similar to Depth Range because it controls the range of information displayed on screen. Zoom, however, allows selection of ranges beneath the surface so any area of water between the surface and the bottom can be en larged to provide more detailed information. By using the full display to show a small area of coverage, the effective ...
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Humminbird 300TX - page 23
Fish Alarm . The Fish Alarm alerts you to the presence of fish, or other targets not connected to the bottom. The Fish Alarm has three different settings that correspond to the three different size fish symbols shown on - screen. The default setting is “OFF.” With t he “Large Fish Only” setting, the 300TX alarms on only those targets that a ...
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Humminbird 300TX - page 24
Units Depth/Speed. Only availa ble on metric versions, the Units Depth/Speed function allows the user to select the units of measurement for the depth and speed readout. MTR/KPH (meters/kilometers per hour), MTR/KTS (meters/nautical miles per hour), FEET/MPH (feet/statute miles per hou r) and FEET/KTS (feet/nautical miles per hour), are available. ...
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Humminbird 300TX - page 25
switch is changed. Only if the transducer is faulty do you need to manually identify the transducer in the menu. The 300TX can work with an older dual beam transducer (model DHS - W only) ; however the fishfinder will not show left/right fish location. If this transducer is being used, leave the menu set to “tri - beam”. When using a dual beam ...
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Humminbird 300TX - page 26
To use the Diagnostic feature, select the Diagnostic feature on the start - up menu on the initial screen. Diagnostic can also be accessed through the Options menu. Self Test. Initially, the 300TX will perform a self - test. This test confirms the operation of all internal circuitry. At the conclusion of the test, one of two messages will appear. ? ...
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Humminbird 300TX - page 27
Diagnostic can be used to evaluate the health of the batter by showing the current voltage. Total Time. The total time category indicates the total time the unit has been in use since shipped from the factory. It is normal for some hours to appear in the total time when the unit is new due to factory testing. While this is often of interest to the ...
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Humminbird 300TX - page 28
Maintenance Your 300TX is designed to provide years of trouble free operation with virtually no maintenance. Follow these simple procedures to ensure your 300TX continues to deliver top performance. • If the unit comes into contact with salt spray, simply wipe the affected surfaces with a cloth dampened in fresh water. Do not use a chemical glass ...
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