A note about Scanning Sonar Transducer Mountings for Garmin Livescope, Lowrance Active Target, and Humminbird Live used with Fishing Specialties Downrod systems.

A note about Scanning Sonar Transducer Mountings for Garmin Livescope, Lowrance Active Target, and Humminbird Live used with Fishing Specialties Downrod systems.
A Fishing Spectialties downrod pole for Scanning Sonar has three optional mountings for the transducers.  This includes Garmin Livescope and Lowrance Active Target.  The information below does not apply so much to Humminbird Live 1/2 because Humminbird made truly the very best Scanning Sonar transducer bracket.
Special note:  Humminbird Live users should aways use the POST end for a Fishing Specialties downrod.
Scanning Sonar mountings all come down to the way they act in the water and primarily the action of the downpole when the boat is moving.  If  the primary method of fishing is to pull up on a spot and remain stationary, the mounting to the transducer is rather irrelevant because it is really just holding the transducer in the water in a given orientation:  Forward/Down/ Perspective or Scout or Landscape views.   In stationary fishing, there is no water flowing past the transducer so there is no hydrodynamic movement and the transducer pole will always look in whatever direction you leave it.
The issue comes to light when water is moving past the transducer.
  1. If you want to use the forward/down views only with a fishing specialties downrod/pole, it can be made with a U bracket that works great for those two views and centers the transducer under the downrod so it is very stable.  Like this photo.  Note that the transducer is really centered under the downrod.  This transducer arrangement will always look in the direction you point it without touching the handle at any boat speed.  The setting for Forward view with the transducer is as shown, the front portion of the transducer is touching the disk end of the downpole.  Note this mounting is only available for LVS34, LVS12 and Lowrance Eagle Eye transducers.
  1. If you want to use all 3 available views:  forward/down/perspective views, we recommend changing the mounting to the ball bracket as shown in the photo below.  This ball bracket is usable with Garmin LVS32 and Lowrance Active Target 1 and 2 for adjustment of all three views  Forward/Down and Perspective or Scout for Lowrnace.  It and again keeps the transducer centered as much as possible under the downpole.  There is only about a 1 inch shift to the side but the long line of the transducer is really quite centered.  Stable at any speed and always looks in the direction you leave it.  One caveat about this mounting is that the ball bracket is not indexed, in order to move the positions, the thumb nut on the ball bracket must be loosened and the transducer aligned.  It is very simple to do and alignment of the transducer/handle can be easily accomplished by laying the downpole on the deck of the boat and adjusting the  angle to match the disk end of the downrod like the photo.
  1. If customers absolutely want to use Garmins bracketing;  select the “Downrod End for Scanning sonars using OEM Click Bracketing – POST END” is the proper part.  However we don’t generally recommend this as it is a  hockey stick type assembly and not very stable when water is running past the transducer.  Note in the photo below it looks a lot like a bad hockey stick.  Considering that the rotation point for the downrod is the center of the downrod, it is actually set up to look a lot like a rudder which is facing in the wrong direction.   If you point this assembly 10-20 degrees off the line of travel (downrod in the water), it will continue to oscillate and rotate until the transducer is dragging behind the downrod.  It must be held to keep looking in any set direction if you are moving.
(this mounting is the same for Lowrance Active Target 1 and 2 supporting all 3 views.

Note the comparison to a bracket made by Humminbird for the Humminbird Live 1 and 2
So that is how it works out.  Over the last 12 years of making downrods, we have found that our customers are generally happy when the downrod itself is not turning due to water pressure.
So we recommend options 1 and 2 above to have a more stable downrod.
Should anyone have any questions, please feel free to call the experts at Fishing Specialties
719-284-2220.

 

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