Thank you sir....Understand it completely now!!

Randy
Quote Originally Posted by rnvinc View Post
Your first post didn't mention which HELIX so I stated "available Sonar " ...

Now I assume the HELIX SI ... Which I can explain better ...

You can put the 798 SI on the bow and connect it direct to the Terrova US2 to get 2d ...

You can also Ethernet the 798 to the HELIX SI ...then the 798 can get DI/SI from the HDSI xducer that is connected to the HELIX SI thru the Ethernet ... This would be a scenario without mounting a xducer to the Terrova ... the only downside is the DI/SI seen on the 798 would be from the back of the boat 20ft away from the 798 ...
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The other scenario would be to mount the 798 SI xducer to the Terrova to get 2d/DI/SI from the xducer mounted to the Terrova ...

Rickie