I installed a new helix 7 G3 SI on my jon boat last fall and am having trouble getting a depth reading when on plane. My previous unit was a Helix 7 G1 DI and i never had issues reading while running. The boat only tops out at about 25mph. I have adjusted the location of the SI transducer several times and it still doesn't read bottom while on plane.
Is this common? Are there any settings on the unit i should try adjust? I have several older DI transducers, i was thinking as a last ditch effort i could install one of those as well and use a y cable but would prefer not to.