Thru Hull Transducer

[TL16]

Which thru hull transducer and split cable do I need for a gen 1 helix 9.

[Wayne P.]

Which of the three versions of Helix 9 first generation?

Thru-hull or shoot-thru transducer?

[TL16]

Which of the three versions of Helix 9 first generation?

Thru-hull or shoot-thru transducer?

Shoot Thru Hull...I am not sure which Helix 9 Gen 1 I have..does that matter, how do I find out?

[Wayne P.]

Shoot Thru Hull...I am not sure which Helix 9 Gen 1 I have..does that matter, how do I find out?

Surely you know which sonar technology you purchased.

There is the Sonar version---Helix 9 Sonar GPS.
There is the Down Imaging version---Helix 9 DI GPS.
There is the Side Imaging version---Helix 9 SI GPS.

[TL16]

Surely you know which sonar technology you purchased.

There is the Sonar version---Helix 9 Sonar GPS.
There is the Down Imaging version---Helix 9 DI GPS.
There is the Side Imaging version---Helix 9 SI GPS.

LOL. Its a helix 9 SI GPS

[Wayne P.]

OK

The shoot-thru is the XP 9 20

The Y cable is either the discontinued AS SIDB Y or the current MSIDB Y. The current one has the extra circuit for the Down Imaging crystal in a MEGA SI transducer.

You do not change any unit settings for that transducer setup. Nothing changes except the location of the 2D source.

[TL16]

OK

The shoot-thru is the XP 9 20

The Y cable is either the discontinued AS SIDB Y or the current MSIDB Y. The current one has the extra circuit for the Down Imaging crystal in a MEGA SI transducer.

You do not change any unit settings for that transducer setup. Nothing changes except the location of the 2D source.

So I can pick up either cable?

So basically, plug in both ducers (HDSI and XP 9 20), make sure the HDSI is selected as transducer source,and the unit will automatically recognize the 2d source?

[Wayne P.]

So I can pick up either cable?

So basically, plug in both ducers (HDSI and XP 9 20), make sure the HDSI is selected as transducer source,and the unit will automatically recognize the 2d source?

Sort of. There is no "automatically".
There is no electrical connection in the Y cable SI side for the 2D crystal in the SI transducer.
The electrical connection for 2D is the shoot-thru.
The plug and pins of the Y cable that connects to the display is the same as the SI transducer by itself.

[TL16]

Sort of. There is no "automatically".
There is no electrical connection in the Y cable SI side for the 2D crystal in the SI transducer.
The electrical connection for 2D is the shoot-thru.
The plug and pins of the Y cable that connects to the display is the same as the SI transducer by itself.

I understand. So I guess im asking after I make connections with the Y cable, will I need to do anything in the unit itself (select transducers)..

[Wayne P.]

I understand. So I guess im asking after I make connections with the Y cable, will I need to do anything in the unit itself (select transducers)..

Already covered that in the last sentence on post #6.

[TL16]

Appreciated, thanks Wayne.