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Thread: Garmin 740s owners

  1. #1
    Member Ronster's Avatar
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    Default Garmin 740s owners

    I think I am starting to research things to much... Have any of you had problems loosing the bottom on your 740s in anything over 300'? Ive seen a few threads online about it and I want to make sure that I am not going to have these kinds of problems if I am going to spend that kind of money. Also, if you dont mind, what kind of transducer are you running? P66 seems to be the norm, and the 1kW transducers run around 1500 so I dont see myself going that route.

    Also, if you have a radar hooked up, how well does it integrate with the unit? Im looking at the 18HD. Thanks for any information.

    Ron

  2. #2
    Member SkinnyRaven's Avatar
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    No problems here. Bottom loss is usually due to the mounting, and/or turbulent water under the transducer. The only time I have had bottom loss issues was when following a charter boat, too many air bubbles in the water. Radar is plug and play, what ever is connected or not to the display will adjust your options on the home screen.

    07 Ocean Pro 220 ET HT
    115 Yamaha
    Garmin 740S, GMR 18 HD
    Airmar TM 260-MM

  3. #3
    Member Ronster's Avatar
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    Any idea which transducer are you using? Also, how deep are you hitting before you lose the signal?

  4. #4
    Member SkinnyRaven's Avatar
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    Quote Originally Posted by Ronster View Post
    Any idea which transducer are you using? Also, how deep are you hitting before you lose the signal?
    Started with the P66 that came with my original Garmin unit, have since upgraded to the Airmar TM 260-MM. I have only lost bottom during the initial setup testing and tweaking the mounting height, and in the prop wash of another boat.

    Attachment 55676

    07 Ocean Pro 220 ET HT
    115 Yamaha
    Garmin 740S, GMR 18 HD
    Airmar TM 260-MM

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