humminbird 871 si questions

Discussion in 'Fish Finder Review and Study' started by crazyKat, Sep 3, 2009.

  1. crazyKat

    crazyKat New Member

    Messages:
    549
    State:
    kentucky
    i got it tuesday used it yesterday and i love it. could see a car tire in 30 ft of water plain as day. got a question on the regular sonar what should the sensitivity be set on? i was showing arches but it would be half arch orpart of an arch
     
  2. biga

    biga Well-Known Member

    Messages:
    2,112
    State:
    evansville
    if you are seeing half arches you need to tilt the transducer a little till u get the full arch... i cant tell u what direction to tilt it without seeing the arch... your sensitivity will vary with water conditions but my normal setting is around 11...
     

  3. 320hotrod

    320hotrod New Member

    Messages:
    356
    State:
    KCMO
  4. tswebb71

    tswebb71 Member

    Messages:
    405
    State:
    So. IL
    That depends Jody. If the fish doesn't cross fully under the boat (through the sonar "cone"), you will only get a half arch.