Topic: Where to mount trolling motor transducer?

[spes]

Hello,
If I want to mount an XTM 9 SI 180 T on my TM
the manual for it says to mount it forward of the motor shaft.

Will it still work if you can't mount it forward of the motor shaft?

[LocDown]

Yes, it will still work. Which sonar unit do you have? the 89X, 99X, and 119X should be the HDSI transducer. If you have a 798SI or 598SI, then that transducer is the right one.

[spes]

I am going to be purchasing a 798 very soon.
(Going to a boat show in a few weeks, and crossing my fingers to find a good deal)
  I plan on returning the boxed transducer to swap for an HDSI for the transom and plan on purchasing an XTM 9 SI 180 T for the TM.

[Humminbird_Greg]

Uhhh…, you had better do some measuring than.  The XTM-9-HDSi-180-T is the same as the transom mount version HDSi transducer except that it comes with a trolling motor adapter in place of transom mounting hardware (many fishermen prefer using the Transducer Shield & Saver adapter as it helps protect the transducer).  It is the same length as the transom mounted HDSi transducer (6 inches long).

[spes]

Thank you Greg,,
I measured the space on my TM and JUST make it


I'm guessing an XTM 9 SI 180 T would be slightly shorter?
Do folks who do run two transducers.. transom and TM,, do they run HD on both or just one?

[Humminbird_Greg]

Yes the XTM-9-Si-180-T is shorter (almost 4 inches).

I would guess that those who run the HDSi transducer at the transom also run the HDSi at the bow.  You have to for the 800kHz Si sonar to work well.

[sonar2000]

If you have one display unit and you switch transducers it will be fine.  However if you plan on expanding to two units then only have one on at a time for sonar. These transducers can interfere with each other..

Chuck

[spes]

Thanks for the replies.
I havn't bought my unit yet. But I will be getting a 798 before the season starts.
  The 798 doesn't have 800khz,, but from what I have read here the HDSI transducer will still give a sharper image.
Please correct me if I'm wrong on that one. Couple hundred difference two go that route.

[sonar2000]

Not sure how many actually use the 800. I would think that most are using the 455.

Chuck

[Humminbird_Greg]

Thanks for the replies.
I havn't bought my unit yet. But I will be getting a 798 before the season starts.
  The 798 doesn't have 800khz,, but from what I have read here the HDSI transducer will still give a sharper image.
Please correct me if I'm wrong on that one. Couple hundred difference two go that route.

You are correct spes.