brucesr Posted July 8, 2023 Report Share Posted July 8, 2023 I just received my new 2500. The electronics dealer that I bought from (and also did the installation) recommended Garmin 8616xsv along with a GT-15 in hull and GT-56 transom mount. My issue is with the GT-15. It does not keep bottom when moving and the picture is terrible to none at all. Even in show speed situations it shows a lot of noise lines. In my previous 2400 TRS I had a Lowrance with a B-60 through hull and the transom mount and it always worked fine but that was on a 2014 and a lot supposedly has improved since then. My question is what is a good replacement and where is the best place to have it mounted? I was not aware the step hull would cause problems and once a hole is put it... Thanks Quote Link to comment Share on other sites More sharing options...
Bamaskeet Posted July 9, 2023 Report Share Posted July 9, 2023 I have a B60 thru hull transducer and a Simrad 3in1 transducer mounted on my transom. Both work fine at planing speeds. 1 Quote Link to comment Share on other sites More sharing options...
brucesr Posted July 10, 2023 Author Report Share Posted July 10, 2023 Thanks for responding. Where exactly is the B-60 placed? I want to make sure the folks drilling the hole get it right. Quote Link to comment Share on other sites More sharing options...
smilemaker Posted July 10, 2023 Report Share Posted July 10, 2023 If the 2500 is a stepped hull it needs to be forward of the first step The transom mount needs to be in the pocket but set a little deeper to get clean nonairated water. Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted July 14, 2023 Report Share Posted July 14, 2023 Smilemaker is correct (forward of the first step). But, there is another thing to consider and that is the angle of the hull where the thru-hull transducer is mounted. For instance, the degree of the hull on my 23 HPS was 12 degrees where I wanted to mount the transducer, so you have to buy a transducer with a 12 degree offset. The offset keeps the transducer pointed straight down. If you mount a transducer without an offset, then your transducer will be sending a signal off to the side and not straight down. Hope this makes since!!! I only have the B-60 and nothing on the transom. It will lose some signal in rough water, but most of the time will read up to 50 mph. Quote Link to comment Share on other sites More sharing options...
Inshorehunter Posted August 30, 2023 Report Share Posted August 30, 2023 Before I call and harass the factory, does anyone know if where the b60 is mounted has coring before the step? Or if there are any places that do not have coring in the running surface? Picked up a 1kw in hull transducer for a steal. Quote Link to comment Share on other sites More sharing options...
George Seither Posted August 31, 2023 Report Share Posted August 31, 2023 Should be a floor plate in the console at least on the 2300 there is, 2500 I believe batteries are under a plexiglass plate in the console, look in there, I could be off on the location! I’m sure someone with a 2500 will chime in, like SCFD and Smile maker have said in front of the step Quote Link to comment Share on other sites More sharing options...
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