Greg now both sides are not working. I will try to post a pic. I tried swaping the 788 in place of the 798 si on the console and changed the settings like you said (I think). I didn't see anything on the screen. I was confused about the "Side Beam View" but maybe I got it right.
Someone on this forum had a spare transducer and loaned it to me to try ( XHS-9-HDSI-180-T). looks like the ducer on my boat isn't working right. I was able to get the SI images with the spare transducer on a stick.



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