Humminbird Side Imaging Forums
General => General Discussion => Topic started by: 220BayFox on November 12, 2013, 05:38:35 PM
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Does anyone have any experience with the thru hull SI transducers, specifically the XPTH 9 HDSI? I have a 998c SI and my mechanic mounted the transom mount transducer a little low. I've adjusted it upwards but would need to drill new holes to get it up far enough to stop the rooster tail and to prevent it from flipping up at 35 mph+. If I'm going to put holes in my boat I'd almost rather do the thru hull. I'm assuming - please correct me if I'm wrong - I'd have better depth readings at high speed, no longer have to trim my engine up, and get rid of the rooster tail and transom mount transducer.
What has your experience been with the thru hull SI transducers? Readings at speed? Will they handle the down imaging or do I need to keep my transom mount transducer? I'm not crazy about counting on the thru hulls not to fail and thus sink the boat... are they sturdy?
I appreciate the input! Thanks.
For reference I have a 2012 SeaFox 220XT bay boat with an F150 and I fish inshore and nearshore in the Florida panhandle, not that it should matter.
EDIT:
After more research it appears these transducers are relatively large and not intended for planing hulls. Looks like the best option is moving the transom transducer up and maybe getting a high speed shoot thru transducer? Does this seem correct? Again, thank you.
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Yes it does sound correct. Look for the XP-9-20 transducer and the AS-Si-DB-Y cable for this.
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We have xpth ducers on both our boats, and they read well in 25 kts. (top speed of both boats)
I also do think the image when trolling is better as the ducer is the lowest point in the water, and have free "sight" in all directions. One consern though, is if it break or not if ishould hit someting lying in the water when im on plane.
regards stig
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Recently went thru this. I found an external area mount on the lower transom that gives me pretty accurate readings at up to 30 mph. I then moved it insidde the hull using clear silicone for a temp mount a few inches from the bilge pump and got good readings up to 45 mph. I prefer the internal mount as it's safe from obstructions in the water. Let us know how you do ! I used the same xnt 9 20 and si y cable that greg mentioned for both locations
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Thanks, all. I appreciate the input. I'll let you know what I end up doing.