Humminbird 343c manual

343c Oper ations Manual 531447 -1_A 343c Oper ations Manual 531447-1_A_343c_Eng.qxd 11/11/2005 9:18 PM Page 1[...]

ii Thank Y ou! Thank you for choosing Humminbird®, America's #1 name in fishfinders. Humminbird® has built its reputation by designing and manufacturing top- quality , thoroughly reliable marine equipment. Y our Humminbird® is designed for tr ouble-free use in even the harshest marine environmen t. In the unlikely event that your Humminbird[...]

iv Sonar Menu T ab 31 Beam Select .................................................................................................................... ........................ 32 Fish ID+™ ...................................................................................................................... ............................ 33 Fish ID [...]

2 How Sonar W orks Sonar technology is based on sound waves. The 300 Series™ Fishing Syst em uses sonar to locate and define structure, bot tom cont our and composition, as well as depth directly below the transducer . Y our 300 Series™ Fishing Syst em sends a sound wave signal and determines distance by measuring the time between the transmiss[...]

4 3 The power output is the amount of energy generated by the sonar transmit ter . It is commonly measured using two methods: • Root Mean Square (RMS) measures power output over the entire transmit cycle. • Peak to P eak measures power output at the highest points. The benefits of increased power output are the ability to det ect smaller target[...]

6 5 What’ s On the Display The 300 Series™ Fishing System can display a variety of useful information about the area under and adjacent to y our boat, incl uding the following items: Depth - water depth; can be set to alarm when the water becomes too shallow . T emperature - water surface temperature. Timer - Elapsed time with T emp/ Speed Acce[...]

Views The views available on your 300 Series™ Fishing Syst em are: • Sonar View • Zoom View • 200 /83 kHz Split Sonar View • Big Digits View • Circular Flasher View . Sonar View is the default view . When the VIEW key is pressed, the display cycles through the available views. When the EXIT k ey is pressed, the display cycles through th[...]

10 Real Time Sonar (RTS®) Window A Real Time Sonar (RTS®) Window appears on the right side of the display in the Sonar View only . The RTS® Window always updat es at the fastest rate possible for depth conditions and shows only the returns fr om the bott om, struc ture and fish that are within the transducer beam. The RTS® Window plots the dept[...]

Structure ID® represents weak returns in blue and strong returns in red. WhiteLine® highlights the strongest sonar r eturns in white, resulting in a distinctive outline. This has the benefit of clearly defining the bot tom on the display . 11 Bott om Presentation As the boat moves, the unit c har ts the changes in depth on the display to cr eate [...]

14 200 /83 kHz Split Sonar View Split Sonar View displays sonar returns from the 83 kHz wide beam on the left side of the screen and displays sonar returns from the 200 kHz narr ow beam on the right side of the screen. Depth is always displayed in the upper left hand corner . Y ou can use the Split Sonar View to make side by side c omparisons betwe[...]

16 K ey Functions Y our 300 Series™ Fishing Syst em user interface consists of a set of easy-t o-use keys that work with various on-screen views and menus to give you flexibility and contr ol ove r your fishing experience. POWER/LIGHT K ey The POWER/LIGHT k ey is used to turn the 300 Series™ Fishing Syst em on and off , and also to adjust the b[...]

EXIT K ey The EXIT key has multiple functions, depending on the situation: • If an alarm is sounding , pressing EXIT will cancel the alarm. • If a menu tab is selected, pressing EXIT will exit the menu mode and return to the view . • If a menu is active, pressing EXIT will return to the previous level in the menu system. • Pressing EXIT wil[...]

The Menu System The menu system is divided int o easy-to-use menu modules. The main components of the menu system are: Start-Up Options Menu - Press the MENU key during the power up sequence t o view the Start -Up Options menu. X-Press TM Menu - The X -Press TM Menu allows you to access the set tings that are changed frequen tly without having to n[...]

Start-Up Options Menu Press the MENU key when the Title screen is displayed t o access the Start -Up Options menu. Use the UP or DOWN 4-W A Y Cursor k eys to position the cursor , then the RIGHT Cursor key to select one of the following choices. If you wait t oo long , the system will default t o whichever menu mode happens to be highlight ed: • [...]

24 System Status Use System S tatus to view system c onnec tions and to conduct a unit self -test. The following screens are displayed in turn when you press the VIEW butt on when using System S tatus: • Self T est • Accessory T est. Self T est displays results fr om the internal diagnostic self test, including unit serial number , Printed Circ[...]

26 Sensitivity Sensitivity contr ols how much detail is shown on the display and will adjust the sensitivity of all sonar frequencies. Increasing the sensitivity shows more sonar returns from small baitfish and suspended debris in the water; however , the display may become too clut tered. When operating in very clear water or greater depths , incr[...]

Lower Range Lower Range sets the deepest depth range that will be displayed. Automatic is the default set ting. When in automatic mode, the lower range will be adjusted by the unit to f ollow the bott om. Selec ting a specific set ting locks the depth range int o Manual mode. Use both Upper and Lower Range together to view a specific depth range ma[...]

30 Bott om Lock (Sonar Zoom View only) Bot tom Loc k changes the mode of the Zoomed view in the Sonar Z oom View. Bot tom Loc k continuously graphs the bot tom at a constant point on the display r egardless of changes in depth. This "flat tens" out the bott om cont our , but is effective at showing fish on or near the bot tom. T o turn on[...]

32 Beam Select Beam Select sets which sonar returns from the transducer will be displayed on the screen. When set to 200 /83 kHz , the returns from both beams are blended by starting with the 83 kHz wide beam return, dimming it, and then overlaying it with the 200 kHz narrow beam return. The dark er 200 kHz narrow beam sonar returns will stand out [...]

34 Fish ID Sensitivity Fish ID Sensitivity adjusts the threshold of the Fish ID+ TM detection algorithms. Selecting a higher setting allows weak er returns to be displayed as fish. This is useful for identifying smaller fish species or baitfish. Selecting a lower setting displays f ewer fish from weak sonar returns. This is helpful when seeking lar[...]

36 35 Bott om View Bott om View selects the method used to represent bot tom and structure on the display . Structure ID® represents weak returns in blue and strong returns in red. WhiteLine® highlights the str ongest sonar returns in white resulting in a distinctive outline. This has the benefit of clearly defining the bott om on the display . ([...]

38 Noise Filter (Advanced) Noise Filter adjusts the sonar Noise Filter to limit in ter ference on the display fr om sources such as your boat engine, turbulence, or other sonar devices. The Noise Filter menu c hoice is available when User Mode is set to Advanced (see Setup Menu T ab: User Mode ). NOTE: The Off set ting removes all filtering; Low , [...]

40 Alarms Menu T ab From any view , press the MENU key twice t o access the Main Menu System. The Alarms tab will be the default selection. NOTE: When an alarm is triggered, you can silence it by pressing any key . The alarm will be silenced, and will not be triggered again until a new instance of the alarm condition is detected. Alarms Menu 39 W a[...]

42 Low Battery Alarm Low Bat tery Alarm sounds when the input battery voltage is equal to or less than the menu set ting. The battery alarm will only sound for the bat tery that is connected to the 300 Series™ Fishing Syst em. The Low Battery Alarm should be set to warn you when the bat tery voltage drops below the safety margin that you have det[...]

44 43 Alarm T one Alarm T one selects the pitch of the alarm sound. A brief tone will be produced as you adjust the Alarm T one so that you can select the tone that you can hear best. T o c hang e the Alarm T one set ting: 1. Highlight Alarm T one on the Alarms main menu. 2. Use the LEFT or RIGHT 4-W A Y Cursor Control ke ys to change the Alarm T o[...]

45 46 Units - Speed (with T emp/Speed) Units - Speed selects the units of measure for speed-relat ed readouts, and will appear in the menu if a T emp/Speed Accessory is connected and the paddlewheel has moved at least once. T o c hang e the Units - Speed setting: 1. Highlight Units - Speed on the Setup menu. 2. Use the LEFT or RIGHT 4-W A Y Cursor [...]

48 47 T riplog Reset (with T emp/Speed) T riplog Reset resets the T riplog to zero , and will appear in the menu if a T emp/Speed Accessory is connected and the paddlewheel has moved at least once. The T riplog pro vides the following information: timer for elapsed time, distance traveled since last reset, and average speed. NOTE: See Setup Menu T [...]

49 Select Readouts (Advanced, Sonar view only) Select Readout s sets individual digital readouts on the Sonar View . This Advanced feature allows you t o select what data will be displayed in each of 5 fixed-position data windows arranged around the left and bot tom edges of the Sonar View screen, or whether a particular window will be turned off ,[...]

52 T roubleshooting Before con tacting the Humminbird® Customer Resource Cen ter , please read the following section. T aking the time t o review these troubleshooting guidelines may allow you to solve a performance problem yourself , and therefore avoid sending your unit back for r epair . 300 Series™ Doesn’t Power Up If your 300 Series™ do[...]

54 53 Finding the Cause of Noise Electrical noise usually affects the display with many black dots at high speeds , and high sensitivity readings. One or more of the following sources can cause noise or interference: Possible Source of Noise Isolation Other electronic devices The boat’ s engine Cavitation from the boat’ s propeller T urn off an[...]

56 55 Specifications Depth Capability ................................................................................ 1000 ft (330 m) Power Output ............................................ 300 W atts (RMS), 2400 W atts (P eak to Peak) Operating Frequency .............................. 200 kHz and 83 kHz DualBeam PLUS™ Area of Cov erage ......[...]

58 Chart Speed: Char t Speed is a user - controllable feature that sets the speed at whic h sonar information moves across the display . A faster setting displays sonar information from more pings and shows mor e detail, but the information moves quickly acr oss the display; a slower setting permits viewing of mor e sonar history , but does not dis[...]

60 59 While somewhat counter -intuitive, this method mak es the sonar images crisper, and has the benefit of enhancing the apparent sensitivity because the weak er signals appear bolder . Inverse grayscale works well in very clear water . Debris-laden water often appears as a lot of clut ter on the screen. Instant Image Update: Instant Image Update[...]

62 61 provide the ability t o spot fish and structure over a wide 90 ° area, and to identify on which side of the boat they are located. See DualBeam PL US™ . Quick Disconnect Mount: The Quic k Disconnect Mounting system is an e xclusive Humminbird® feature that permits the unit t o be easily removed from the moun ting base by pressing a releas[...]

64 63 Structure ID ® : Structure ID® is a Humminbird® feature that describes the traditional grayscale method of presenting sonar information. See Grayscale . Surface Clutter: Surface Clut ter is a phenomenon where sonar returns are r eflected off of tiny objects near the surface of the water , including algae and even air bubbles. T ypically , [...]

66 Contact Humminbird® Con tact the Humminbird® Customer Resource Cen ter in any of the following ways: By T elephone (Monday - Friday 8:00 a.m. to 4:30 p.m. C entral Standard Time): 1-800- 633- 1468 By e-mail (typically we respond to your e-mail within thr ee business days): custserv@johnsonoutdoors.com For direct shipping , our address is: Humm[...]