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Lowrance HDS with SS vs Humminbird SI
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Thread: Lowrance HDS with SS vs Humminbird SI

  1. 14-01-2010, 04:54 PM #1
    Strewth
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    Lowrance HDS with SS vs Humminbird SI

    I would was thinking of trying the structure scan feature in a Lowrance HDS-5, but running two cables and having two transducers plus another processor box, seems to be an inelegant design. The Humminbird 798cx SI seems to have the same features for a similar cost, but only uses one cable/transducer and no box.

    Am I missing something here? Anyone compared these two units who can comment on the relative merits of the sonar images/ease of use?
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  2. 14-01-2010, 05:42 PM #2
    O-3
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    Re: Lowrance HDS with SS vs Humminbird SI

    The hummingbird doesn't have downscan, sidescan only.

    I read somewhere Hummingbird may introduce downscan for existing units though.
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  3. 14-01-2010, 06:14 PM #3
    Strewth
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    Re: Lowrance HDS with SS vs Humminbird SI

    Thanks O-3, but precisely what is the difference between down scan and side scan? The images I have seen so far look very similar.
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  4. 14-01-2010, 08:17 PM #4
    O-3
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    Re: Lowrance HDS with SS vs Humminbird SI

    Here is a pic of Sidescan:

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  5. 14-01-2010, 08:22 PM #5
    O-3
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    Re: Lowrance HDS with SS vs Humminbird SI

    Here is a pic of Downscan:
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  6. 14-01-2010, 08:26 PM #6
    O-3
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    Re: Lowrance HDS with SS vs Humminbird SI

    Strewth:


    This vid explains the differences between sidescan and downscan.

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  7. 14-01-2010, 08:37 PM #7
    O-3
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    Re: Lowrance HDS with SS vs Humminbird SI

    After a bit of googling it looks like Humminbird have released a firmware update for Downscan(they call it downimaging) on their units only two days ago.

    Tuff choice now I would imagine.

    Maybe wait for some more feedback on the update from Humminbird owners and then make your decision.
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  8. 14-01-2010, 10:54 PM #8
    Strewth
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    Re: Lowrance HDS with SS vs Humminbird SI

    Great information there O-3.Tough choice indeed. Do the Humminbird transducers cause much of a rooster tail ? Where is the best place to put them?
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  9. 14-01-2010, 11:01 PM #9
    O-3
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    Re: Lowrance HDS with SS vs Humminbird SI

    I would go a thru Hull ducer mate, no rooster tail then.
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  10. 15-01-2010, 10:59 AM #10
    hodges4
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    Re: Lowrance HDS with SS vs Humminbird SI

    From what I've read so far, side scan/side imaging won't work through hull, it has to be mounted externally where it can clearly see sideways.
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  11. 15-01-2010, 11:50 AM #11
    Strewth
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    Re: Lowrance HDS with SS vs Humminbird SI

    OK, so that still leaves the question of the best place for the transducer. I recall reading a suggestion somewhere that it should be mounted in front of the motor?
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  12. 15-01-2010, 01:48 PM #12
    hodges4
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    Re: Lowrance HDS with SS vs Humminbird SI

    Try this site. You will have to join group first to be able to view photos. There's a heap of photos of installing transducers and other info. The info will be the ame no matter which brand you go for.

    http://groups.yahoo.com/group/sideimaging/

    John
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